./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.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 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:49:47,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:49:47,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:49:47,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:49:47,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:49:47,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:49:47,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:49:47,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:49:47,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:49:47,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:49:47,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:49:47,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:49:47,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:49:47,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:49:47,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:49:47,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:49:47,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:49:48,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:49:48,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:49:48,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:49:48,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:49:48,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:49:48,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:49:48,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:49:48,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:49:48,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:49:48,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:49:48,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:49:48,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:49:48,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:49:48,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:49:48,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:49:48,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:49:48,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:49:48,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:49:48,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:49:48,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:49:48,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:49:48,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:49:48,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:49:48,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:49:48,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:49:48,055 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:49:48,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:49:48,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:49:48,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:49:48,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:49:48,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:49:48,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:49:48,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:49:48,058 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:49:48,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:49:48,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:49:48,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:49:48,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:49:48,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:49:48,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:49:48,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:49:48,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:49:48,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:49:48,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:49:48,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:49:48,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:49:48,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:49:48,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:49:48,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:49:48,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:49:48,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:49:48,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:49:48,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:49:48,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:49:48,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:49:48,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:49:48,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 [2021-12-22 14:49:48,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:49:48,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:49:48,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:49:48,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:49:48,307 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:49:48,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-22 14:49:48,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8553281c3/145291230a8e46f3b494b9b37c4323cc/FLAG62a3cc599 [2021-12-22 14:49:49,001 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:49:49,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-22 14:49:49,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8553281c3/145291230a8e46f3b494b9b37c4323cc/FLAG62a3cc599 [2021-12-22 14:49:49,386 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8553281c3/145291230a8e46f3b494b9b37c4323cc [2021-12-22 14:49:49,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:49:49,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:49:49,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:49:49,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:49:49,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:49:49,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:49:49" (1/1) ... [2021-12-22 14:49:49,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383febb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:49, skipping insertion in model container [2021-12-22 14:49:49,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:49:49" (1/1) ... [2021-12-22 14:49:49,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:49:49,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:49:50,575 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2021-12-22 14:49:50,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:49:50,622 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:49:50,888 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2021-12-22 14:49:50,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:49:50,978 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:49:50,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50 WrapperNode [2021-12-22 14:49:50,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:49:50,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:49:50,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:49:50,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:49:50,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,175 INFO L137 Inliner]: procedures = 260, calls = 1808, calls flagged for inlining = 104, calls inlined = 100, statements flattened = 4518 [2021-12-22 14:49:51,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:49:51,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:49:51,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:49:51,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:49:51,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:49:51,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:49:51,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:49:51,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:49:51,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (1/1) ... [2021-12-22 14:49:51,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:49:51,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:49:51,442 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) [2021-12-22 14:49:51,449 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 [2021-12-22 14:49:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 14:49:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 14:49:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:49:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:49:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:49:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:49:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 14:49:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 14:49:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2021-12-22 14:49:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2021-12-22 14:49:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_11 [2021-12-22 14:49:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_11 [2021-12-22 14:49:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2021-12-22 14:49:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2021-12-22 14:49:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-12-22 14:49:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-12-22 14:49:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-22 14:49:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-22 14:49:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-22 14:49:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-22 14:49:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:49:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:49:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-22 14:49:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-22 14:49:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-22 14:49:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-22 14:49:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-12-22 14:49:51,478 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-12-22 14:49:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:49:51,478 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:49:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:49:51,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:49:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:49:51,478 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:49:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_49 [2021-12-22 14:49:51,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_49 [2021-12-22 14:49:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:49:51,479 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:49:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2021-12-22 14:49:51,480 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2021-12-22 14:49:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-22 14:49:51,480 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-22 14:49:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2021-12-22 14:49:51,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2021-12-22 14:49:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 14:49:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 14:49:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2021-12-22 14:49:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2021-12-22 14:49:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-12-22 14:49:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-12-22 14:49:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2021-12-22 14:49:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2021-12-22 14:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-12-22 14:49:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-12-22 14:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:49:51,483 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:49:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-22 14:49:51,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-22 14:49:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:49:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-12-22 14:49:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-12-22 14:49:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-22 14:49:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-22 14:49:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-12-22 14:49:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-12-22 14:49:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2021-12-22 14:49:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2021-12-22 14:49:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-12-22 14:49:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-12-22 14:49:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2021-12-22 14:49:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2021-12-22 14:49:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:49:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:49:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 14:49:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 14:49:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:49:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:49:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-12-22 14:49:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-12-22 14:49:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:49:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:49:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 14:49:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 14:49:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2021-12-22 14:49:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2021-12-22 14:49:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-22 14:49:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-22 14:49:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-12-22 14:49:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-12-22 14:49:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2021-12-22 14:49:51,489 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2021-12-22 14:49:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-22 14:49:51,489 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-22 14:49:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 14:49:51,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 14:49:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:49:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-12-22 14:49:51,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-12-22 14:49:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:49:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-12-22 14:49:51,491 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-12-22 14:49:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-22 14:49:51,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-22 14:49:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:49:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_6 [2021-12-22 14:49:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_6 [2021-12-22 14:49:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-22 14:49:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-22 14:49:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:49:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:49:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:49:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:49:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-12-22 14:49:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-12-22 14:49:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:49:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:49:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:49:51,494 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:49:51,495 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-22 14:49:51,496 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-22 14:49:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:49:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2021-12-22 14:49:51,497 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2021-12-22 14:49:51,497 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2021-12-22 14:49:51,498 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2021-12-22 14:49:51,498 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2021-12-22 14:49:51,498 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2021-12-22 14:49:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:49:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:49:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-12-22 14:49:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-12-22 14:49:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 14:49:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 14:49:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:49:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_6 [2021-12-22 14:49:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_6 [2021-12-22 14:49:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2021-12-22 14:49:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2021-12-22 14:49:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 14:49:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 14:49:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-22 14:49:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-22 14:49:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2021-12-22 14:49:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2021-12-22 14:49:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:49:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2021-12-22 14:49:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2021-12-22 14:49:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_6 [2021-12-22 14:49:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_6 [2021-12-22 14:49:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_8 [2021-12-22 14:49:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_8 [2021-12-22 14:49:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 14:49:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 14:49:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:49:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2021-12-22 14:49:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2021-12-22 14:49:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:49:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:49:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-12-22 14:49:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-12-22 14:49:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2021-12-22 14:49:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2021-12-22 14:49:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-22 14:49:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-22 14:49:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 14:49:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 14:49:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 14:49:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 14:49:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-12-22 14:49:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-12-22 14:49:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2021-12-22 14:49:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2021-12-22 14:49:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2021-12-22 14:49:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2021-12-22 14:49:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2021-12-22 14:49:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2021-12-22 14:49:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 14:49:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 14:49:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 14:49:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 14:49:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-12-22 14:49:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-12-22 14:49:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-22 14:49:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-22 14:49:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-22 14:49:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-22 14:49:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_46 [2021-12-22 14:49:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_46 [2021-12-22 14:49:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-22 14:49:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-22 14:49:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:49:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-12-22 14:49:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-12-22 14:49:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2021-12-22 14:49:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2021-12-22 14:49:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-22 14:49:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-22 14:49:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2021-12-22 14:49:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2021-12-22 14:49:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2021-12-22 14:49:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2021-12-22 14:49:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-22 14:49:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:49:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:49:52,030 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:49:52,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:49:52,818 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:49:55,237 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:49:55,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:49:55,252 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:49:55,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:49:55 BoogieIcfgContainer [2021-12-22 14:49:55,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:49:55,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:49:55,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:49:55,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:49:55,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:49:49" (1/3) ... [2021-12-22 14:49:55,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268917a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:49:55, skipping insertion in model container [2021-12-22 14:49:55,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:49:50" (2/3) ... [2021-12-22 14:49:55,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268917a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:49:55, skipping insertion in model container [2021-12-22 14:49:55,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:49:55" (3/3) ... [2021-12-22 14:49:55,260 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-22 14:49:55,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:49:55,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:49:55,298 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:49:55,302 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 [2021-12-22 14:49:55,302 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:49:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 1586 states, 1107 states have (on average 1.3965672990063234) internal successors, (1546), 1173 states have internal predecessors, (1546), 384 states have call successors, (384), 94 states have call predecessors, (384), 93 states have return successors, (375), 349 states have call predecessors, (375), 375 states have call successors, (375) [2021-12-22 14:49:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-22 14:49:55,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:49:55,345 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:49:55,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:49:55,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:49:55,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1754157023, now seen corresponding path program 1 times [2021-12-22 14:49:55,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:49:55,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057618305] [2021-12-22 14:49:55,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:49:55,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:49:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:49:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:49:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:49:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:49:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:49:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:49:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:49:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:49:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:49:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:49:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:49:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:49:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:49:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:49:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:49:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:49:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:49:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-22 14:49:55,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:49:55,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057618305] [2021-12-22 14:49:55,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057618305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:49:55,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:49:55,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:49:55,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5855504] [2021-12-22 14:49:55,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:49:55,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:49:55,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:49:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:49:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:49:55,947 INFO L87 Difference]: Start difference. First operand has 1586 states, 1107 states have (on average 1.3965672990063234) internal successors, (1546), 1173 states have internal predecessors, (1546), 384 states have call successors, (384), 94 states have call predecessors, (384), 93 states have return successors, (375), 349 states have call predecessors, (375), 375 states have call successors, (375) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:00,398 INFO L93 Difference]: Finished difference Result 3330 states and 4958 transitions. [2021-12-22 14:50:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:50:00,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2021-12-22 14:50:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:00,426 INFO L225 Difference]: With dead ends: 3330 [2021-12-22 14:50:00,426 INFO L226 Difference]: Without dead ends: 1732 [2021-12-22 14:50:00,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:00,443 INFO L933 BasicCegarLoop]: 2108 mSDtfsCounter, 1689 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 1527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 2487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1527 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:00,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1720 Valid, 2936 Invalid, 2487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1527 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-22 14:50:00,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2021-12-22 14:50:00,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1570. [2021-12-22 14:50:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1102 states have (on average 1.3874773139745917) internal successors, (1529), 1157 states have internal predecessors, (1529), 375 states have call successors, (375), 93 states have call predecessors, (375), 92 states have return successors, (371), 345 states have call predecessors, (371), 371 states have call successors, (371) [2021-12-22 14:50:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2275 transitions. [2021-12-22 14:50:00,595 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2275 transitions. Word has length 114 [2021-12-22 14:50:00,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:00,596 INFO L470 AbstractCegarLoop]: Abstraction has 1570 states and 2275 transitions. [2021-12-22 14:50:00,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2275 transitions. [2021-12-22 14:50:00,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-22 14:50:00,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:00,607 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:00,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:50:00,608 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:00,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:00,608 INFO L85 PathProgramCache]: Analyzing trace with hash 340574761, now seen corresponding path program 1 times [2021-12-22 14:50:00,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:00,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26578343] [2021-12-22 14:50:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:00,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:50:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:50:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-22 14:50:00,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:00,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26578343] [2021-12-22 14:50:00,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26578343] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:00,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:00,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:00,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97866545] [2021-12-22 14:50:00,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:00,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:00,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:00,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:00,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:00,997 INFO L87 Difference]: Start difference. First operand 1570 states and 2275 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:10,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:10,786 INFO L93 Difference]: Finished difference Result 4978 states and 7479 transitions. [2021-12-22 14:50:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:50:10,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2021-12-22 14:50:10,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:10,802 INFO L225 Difference]: With dead ends: 4978 [2021-12-22 14:50:10,802 INFO L226 Difference]: Without dead ends: 3431 [2021-12-22 14:50:10,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:50:10,809 INFO L933 BasicCegarLoop]: 2632 mSDtfsCounter, 4041 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 3066 mSolverCounterSat, 2191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4258 SdHoareTripleChecker+Valid, 6245 SdHoareTripleChecker+Invalid, 5257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2191 IncrementalHoareTripleChecker+Valid, 3066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:10,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4258 Valid, 6245 Invalid, 5257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2191 Valid, 3066 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2021-12-22 14:50:10,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3431 states. [2021-12-22 14:50:10,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3431 to 3138. [2021-12-22 14:50:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 2203 states have (on average 1.3858374943259193) internal successors, (3053), 2313 states have internal predecessors, (3053), 742 states have call successors, (742), 184 states have call predecessors, (742), 192 states have return successors, (790), 694 states have call predecessors, (790), 738 states have call successors, (790) [2021-12-22 14:50:10,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 4585 transitions. [2021-12-22 14:50:10,907 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 4585 transitions. Word has length 114 [2021-12-22 14:50:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:10,909 INFO L470 AbstractCegarLoop]: Abstraction has 3138 states and 4585 transitions. [2021-12-22 14:50:10,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 4585 transitions. [2021-12-22 14:50:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-22 14:50:10,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:10,913 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:10,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:50:10,914 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1967333887, now seen corresponding path program 1 times [2021-12-22 14:50:10,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:10,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618843646] [2021-12-22 14:50:10,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:10,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:50:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:50:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-22 14:50:11,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:11,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618843646] [2021-12-22 14:50:11,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618843646] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:11,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:11,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:11,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651688808] [2021-12-22 14:50:11,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:11,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:11,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:11,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:11,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:11,157 INFO L87 Difference]: Start difference. First operand 3138 states and 4585 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:17,341 INFO L93 Difference]: Finished difference Result 9582 states and 14467 transitions. [2021-12-22 14:50:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:50:17,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2021-12-22 14:50:17,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:17,388 INFO L225 Difference]: With dead ends: 9582 [2021-12-22 14:50:17,388 INFO L226 Difference]: Without dead ends: 6467 [2021-12-22 14:50:17,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:50:17,406 INFO L933 BasicCegarLoop]: 2338 mSDtfsCounter, 4963 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 3177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 4928 SdHoareTripleChecker+Invalid, 5130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3177 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:17,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5142 Valid, 4928 Invalid, 5130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3177 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-22 14:50:17,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2021-12-22 14:50:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 5881. [2021-12-22 14:50:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5881 states, 4130 states have (on average 1.3917675544794188) internal successors, (5748), 4345 states have internal predecessors, (5748), 1383 states have call successors, (1383), 350 states have call predecessors, (1383), 367 states have return successors, (1481), 1291 states have call predecessors, (1481), 1379 states have call successors, (1481) [2021-12-22 14:50:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5881 states to 5881 states and 8612 transitions. [2021-12-22 14:50:17,597 INFO L78 Accepts]: Start accepts. Automaton has 5881 states and 8612 transitions. Word has length 115 [2021-12-22 14:50:17,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:17,598 INFO L470 AbstractCegarLoop]: Abstraction has 5881 states and 8612 transitions. [2021-12-22 14:50:17,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:17,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5881 states and 8612 transitions. [2021-12-22 14:50:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-22 14:50:17,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:17,600 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:17,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:50:17,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:17,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash 857264108, now seen corresponding path program 1 times [2021-12-22 14:50:17,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:17,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016851935] [2021-12-22 14:50:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:17,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:50:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:50:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-22 14:50:17,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:17,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016851935] [2021-12-22 14:50:17,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016851935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:17,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:17,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:17,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467114127] [2021-12-22 14:50:17,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:17,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:17,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:17,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:17,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:17,822 INFO L87 Difference]: Start difference. First operand 5881 states and 8612 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:21,767 INFO L93 Difference]: Finished difference Result 6462 states and 9660 transitions. [2021-12-22 14:50:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:50:21,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2021-12-22 14:50:21,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:21,806 INFO L225 Difference]: With dead ends: 6462 [2021-12-22 14:50:21,806 INFO L226 Difference]: Without dead ends: 6459 [2021-12-22 14:50:21,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:50:21,812 INFO L933 BasicCegarLoop]: 2038 mSDtfsCounter, 3618 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 1846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3836 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1846 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:21,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3836 Valid, 2854 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1846 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-22 14:50:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6459 states. [2021-12-22 14:50:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6459 to 5880. [2021-12-22 14:50:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 4130 states have (on average 1.3915254237288135) internal successors, (5747), 4344 states have internal predecessors, (5747), 1382 states have call successors, (1382), 350 states have call predecessors, (1382), 367 states have return successors, (1481), 1291 states have call predecessors, (1481), 1379 states have call successors, (1481) [2021-12-22 14:50:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 8610 transitions. [2021-12-22 14:50:22,069 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 8610 transitions. Word has length 116 [2021-12-22 14:50:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:22,070 INFO L470 AbstractCegarLoop]: Abstraction has 5880 states and 8610 transitions. [2021-12-22 14:50:22,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 8610 transitions. [2021-12-22 14:50:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-22 14:50:22,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:22,072 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:22,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:50:22,073 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:22,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:22,073 INFO L85 PathProgramCache]: Analyzing trace with hash 804844194, now seen corresponding path program 1 times [2021-12-22 14:50:22,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:22,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527418271] [2021-12-22 14:50:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:22,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:50:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:50:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-22 14:50:22,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:22,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527418271] [2021-12-22 14:50:22,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527418271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:22,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:22,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:22,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729941952] [2021-12-22 14:50:22,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:22,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:22,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:22,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:22,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:22,290 INFO L87 Difference]: Start difference. First operand 5880 states and 8610 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:28,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:28,052 INFO L93 Difference]: Finished difference Result 6461 states and 9658 transitions. [2021-12-22 14:50:28,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:50:28,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2021-12-22 14:50:28,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:28,081 INFO L225 Difference]: With dead ends: 6461 [2021-12-22 14:50:28,081 INFO L226 Difference]: Without dead ends: 6429 [2021-12-22 14:50:28,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:50:28,087 INFO L933 BasicCegarLoop]: 2039 mSDtfsCounter, 3105 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1371 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:28,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3323 Valid, 3531 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1371 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-22 14:50:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6429 states. [2021-12-22 14:50:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6429 to 5850. [2021-12-22 14:50:28,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5850 states, 4114 states have (on average 1.3920758385999028) internal successors, (5727), 4327 states have internal predecessors, (5727), 1369 states have call successors, (1369), 349 states have call predecessors, (1369), 366 states have return successors, (1469), 1279 states have call predecessors, (1469), 1367 states have call successors, (1469) [2021-12-22 14:50:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 8565 transitions. [2021-12-22 14:50:28,271 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 8565 transitions. Word has length 117 [2021-12-22 14:50:28,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:28,272 INFO L470 AbstractCegarLoop]: Abstraction has 5850 states and 8565 transitions. [2021-12-22 14:50:28,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:50:28,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 8565 transitions. [2021-12-22 14:50:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-22 14:50:28,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:28,284 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:28,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:50:28,284 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:28,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:28,285 INFO L85 PathProgramCache]: Analyzing trace with hash 604265189, now seen corresponding path program 1 times [2021-12-22 14:50:28,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:28,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846337773] [2021-12-22 14:50:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:28,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:50:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:50:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:50:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:50:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 14:50:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 14:50:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 14:50:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 14:50:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-22 14:50:28,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:28,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846337773] [2021-12-22 14:50:28,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846337773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:28,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:28,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 14:50:28,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236537932] [2021-12-22 14:50:28,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:28,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:50:28,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:28,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:50:28,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:50:28,521 INFO L87 Difference]: Start difference. First operand 5850 states and 8565 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 14:50:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:39,379 INFO L93 Difference]: Finished difference Result 20074 states and 30434 transitions. [2021-12-22 14:50:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 14:50:39,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2021-12-22 14:50:39,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:39,446 INFO L225 Difference]: With dead ends: 20074 [2021-12-22 14:50:39,447 INFO L226 Difference]: Without dead ends: 14247 [2021-12-22 14:50:39,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-22 14:50:39,473 INFO L933 BasicCegarLoop]: 2265 mSDtfsCounter, 6468 mSDsluCounter, 4872 mSDsCounter, 0 mSdLazyCounter, 5943 mSolverCounterSat, 5102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6787 SdHoareTripleChecker+Valid, 7137 SdHoareTripleChecker+Invalid, 11045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5102 IncrementalHoareTripleChecker+Valid, 5943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:39,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6787 Valid, 7137 Invalid, 11045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5102 Valid, 5943 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2021-12-22 14:50:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14247 states. [2021-12-22 14:50:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14247 to 12562. [2021-12-22 14:50:39,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12562 states, 8738 states have (on average 1.384641794460975) internal successors, (12099), 9249 states have internal predecessors, (12099), 2943 states have call successors, (2943), 677 states have call predecessors, (2943), 880 states have return successors, (3810), 2917 states have call predecessors, (3810), 2941 states have call successors, (3810) [2021-12-22 14:50:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12562 states to 12562 states and 18852 transitions. [2021-12-22 14:50:39,914 INFO L78 Accepts]: Start accepts. Automaton has 12562 states and 18852 transitions. Word has length 169 [2021-12-22 14:50:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:39,914 INFO L470 AbstractCegarLoop]: Abstraction has 12562 states and 18852 transitions. [2021-12-22 14:50:39,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 14:50:39,915 INFO L276 IsEmpty]: Start isEmpty. Operand 12562 states and 18852 transitions. [2021-12-22 14:50:39,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-22 14:50:39,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:39,929 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:39,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:50:39,929 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash -563103977, now seen corresponding path program 1 times [2021-12-22 14:50:39,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:39,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455364014] [2021-12-22 14:50:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:39,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:50:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:50:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 14:50:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 14:50:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 14:50:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:50:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 14:50:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:50:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:50:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-12-22 14:50:40,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:40,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455364014] [2021-12-22 14:50:40,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455364014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:40,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:40,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:50:40,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56338874] [2021-12-22 14:50:40,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:40,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:50:40,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:40,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:50:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:50:40,223 INFO L87 Difference]: Start difference. First operand 12562 states and 18852 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:50:49,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:49,796 INFO L93 Difference]: Finished difference Result 29123 states and 44848 transitions. [2021-12-22 14:50:49,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 14:50:49,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 208 [2021-12-22 14:50:49,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:49,861 INFO L225 Difference]: With dead ends: 29123 [2021-12-22 14:50:49,862 INFO L226 Difference]: Without dead ends: 16584 [2021-12-22 14:50:49,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2021-12-22 14:50:49,905 INFO L933 BasicCegarLoop]: 2356 mSDtfsCounter, 5702 mSDsluCounter, 5578 mSDsCounter, 0 mSdLazyCounter, 4792 mSolverCounterSat, 4402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5969 SdHoareTripleChecker+Valid, 7934 SdHoareTripleChecker+Invalid, 9194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4402 IncrementalHoareTripleChecker+Valid, 4792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:49,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5969 Valid, 7934 Invalid, 9194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4402 Valid, 4792 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2021-12-22 14:50:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16584 states.