./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:52:33,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:52:33,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:52:33,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:52:33,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:52:33,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:52:33,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:52:33,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:52:33,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:52:33,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:52:33,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:52:33,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:52:33,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:52:33,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:52:33,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:52:34,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:52:34,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:52:34,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:52:34,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:52:34,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:52:34,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:52:34,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:52:34,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:52:34,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:52:34,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:52:34,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:52:34,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:52:34,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:52:34,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:52:34,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:52:34,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:52:34,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:52:34,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:52:34,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:52:34,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:52:34,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:52:34,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:52:34,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:52:34,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:52:34,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:52:34,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:52:34,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:52:34,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:52:34,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:52:34,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:52:34,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:52:34,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:52:34,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:52:34,054 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:52:34,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:52:34,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:52:34,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:52:34,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:52:34,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:52:34,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:52:34,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:52:34,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:52:34,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:52:34,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:52:34,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:52:34,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:52:34,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:52:34,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:52:34,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:52:34,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:52:34,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:52:34,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:52:34,058 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:52:34,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:52:34,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:52:34,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:52:34,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-05 20:52:34,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:52:34,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:52:34,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:52:34,321 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:52:34,321 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:52:34,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-05 20:52:34,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2739f5ce/d1f591868cdd41e0a3025313a28c6c4d/FLAG0755bd150 [2021-11-05 20:52:34,994 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:52:34,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-05 20:52:35,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2739f5ce/d1f591868cdd41e0a3025313a28c6c4d/FLAG0755bd150 [2021-11-05 20:52:35,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2739f5ce/d1f591868cdd41e0a3025313a28c6c4d [2021-11-05 20:52:35,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:52:35,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:52:35,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:52:35,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:52:35,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:52:35,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:52:35" (1/1) ... [2021-11-05 20:52:35,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e06cd4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:35, skipping insertion in model container [2021-11-05 20:52:35,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:52:35" (1/1) ... [2021-11-05 20:52:35,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:52:35,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:52:37,106 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-05 20:52:37,109 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-05 20:52:37,110 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-05 20:52:37,110 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-05 20:52:37,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:52:37,161 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:52:37,433 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-05 20:52:37,434 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-05 20:52:37,434 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-05 20:52:37,434 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-05 20:52:37,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:52:37,585 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:52:37,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37 WrapperNode [2021-11-05 20:52:37,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:52:37,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:52:37,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:52:37,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:52:37,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:37,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:52:38,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:52:38,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:52:38,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:52:38,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:52:38,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:52:38,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:52:38,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:52:38,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (1/1) ... [2021-11-05 20:52:38,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:52:38,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:52:38,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 20:52:38,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 20:52:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 20:52:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:52:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:52:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:52:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:52:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:52:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:52:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:52:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:52:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:52:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:52:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:52:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:52:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:52:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:52:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:52:47,280 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:52:47,280 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:52:47,280 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:52:47,281 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:52:47,281 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:52:47,312 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:52:47,312 INFO L299 CfgBuilder]: Removed 5367 assume(true) statements. [2021-11-05 20:52:47,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:52:47 BoogieIcfgContainer [2021-11-05 20:52:47,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:52:47,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:52:47,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:52:47,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:52:47,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:52:35" (1/3) ... [2021-11-05 20:52:47,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:52:47, skipping insertion in model container [2021-11-05 20:52:47,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:52:37" (2/3) ... [2021-11-05 20:52:47,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:52:47, skipping insertion in model container [2021-11-05 20:52:47,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:52:47" (3/3) ... [2021-11-05 20:52:47,324 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-05 20:52:47,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:52:47,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-05 20:52:47,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:52:47,377 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 20:52:47,377 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-05 20:52:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 4357 states, 4270 states have (on average 1.2805620608899297) internal successors, (5468), 4356 states have internal predecessors, (5468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 20:52:47,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:47,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:47,442 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:52:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:47,447 INFO L85 PathProgramCache]: Analyzing trace with hash 462445981, now seen corresponding path program 1 times [2021-11-05 20:52:47,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:47,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521647667] [2021-11-05 20:52:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:47,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:52:47,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:47,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521647667] [2021-11-05 20:52:47,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521647667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:47,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:47,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:47,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873861515] [2021-11-05 20:52:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:47,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:47,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:47,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:47,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:47,860 INFO L87 Difference]: Start difference. First operand has 4357 states, 4270 states have (on average 1.2805620608899297) internal successors, (5468), 4356 states have internal predecessors, (5468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:49,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:50,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:50,240 INFO L93 Difference]: Finished difference Result 12675 states and 15903 transitions. [2021-11-05 20:52:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:50,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-05 20:52:50,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:50,282 INFO L225 Difference]: With dead ends: 12675 [2021-11-05 20:52:50,282 INFO L226 Difference]: Without dead ends: 8102 [2021-11-05 20:52:50,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:50,300 INFO L933 BasicCegarLoop]: 5321 mSDtfsCounter, 4995 mSDsluCounter, 5274 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2058.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4995 SdHoareTripleChecker+Valid, 10595 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.57ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2158.66ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:50,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4995 Valid, 10595 Invalid, 34 Unknown, 0 Unchecked, 21.57ms Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2158.66ms Time] [2021-11-05 20:52:50,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8102 states. [2021-11-05 20:52:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8102 to 8018. [2021-11-05 20:52:50,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8018 states, 7931 states have (on average 1.2196444332366663) internal successors, (9673), 8017 states have internal predecessors, (9673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 9673 transitions. [2021-11-05 20:52:50,521 INFO L78 Accepts]: Start accepts. Automaton has 8018 states and 9673 transitions. Word has length 39 [2021-11-05 20:52:50,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:50,522 INFO L470 AbstractCegarLoop]: Abstraction has 8018 states and 9673 transitions. [2021-11-05 20:52:50,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:50,524 INFO L276 IsEmpty]: Start isEmpty. Operand 8018 states and 9673 transitions. [2021-11-05 20:52:50,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 20:52:50,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:50,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:50,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:52:50,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:52:50,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:50,532 INFO L85 PathProgramCache]: Analyzing trace with hash -958248383, now seen corresponding path program 1 times [2021-11-05 20:52:50,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:50,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652395991] [2021-11-05 20:52:50,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:50,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:50,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:52:50,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:50,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652395991] [2021-11-05 20:52:50,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652395991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:50,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:50,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:50,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994234275] [2021-11-05 20:52:50,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:50,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:50,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:50,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:50,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:50,701 INFO L87 Difference]: Start difference. First operand 8018 states and 9673 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:52,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:53,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:53,175 INFO L93 Difference]: Finished difference Result 23036 states and 27765 transitions. [2021-11-05 20:52:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:53,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-05 20:52:53,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:53,239 INFO L225 Difference]: With dead ends: 23036 [2021-11-05 20:52:53,240 INFO L226 Difference]: Without dead ends: 15078 [2021-11-05 20:52:53,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:53,257 INFO L933 BasicCegarLoop]: 4995 mSDtfsCounter, 4569 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2080.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 9765 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.05ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2194.75ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:53,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4569 Valid, 9765 Invalid, 51 Unknown, 0 Unchecked, 13.05ms Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2194.75ms Time] [2021-11-05 20:52:53,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15078 states. [2021-11-05 20:52:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15078 to 13594. [2021-11-05 20:52:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13594 states, 13507 states have (on average 1.2146294513955727) internal successors, (16406), 13593 states have internal predecessors, (16406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13594 states to 13594 states and 16406 transitions. [2021-11-05 20:52:53,726 INFO L78 Accepts]: Start accepts. Automaton has 13594 states and 16406 transitions. Word has length 39 [2021-11-05 20:52:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:53,727 INFO L470 AbstractCegarLoop]: Abstraction has 13594 states and 16406 transitions. [2021-11-05 20:52:53,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 13594 states and 16406 transitions. [2021-11-05 20:52:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 20:52:53,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:53,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:53,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:52:53,729 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:52:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:53,730 INFO L85 PathProgramCache]: Analyzing trace with hash 914697269, now seen corresponding path program 1 times [2021-11-05 20:52:53,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:53,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775683598] [2021-11-05 20:52:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:53,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:52:53,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:53,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775683598] [2021-11-05 20:52:53,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775683598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:53,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:53,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:53,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409432869] [2021-11-05 20:52:53,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:53,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:53,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:53,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:53,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:53,830 INFO L87 Difference]: Start difference. First operand 13594 states and 16406 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:55,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:56,267 INFO L93 Difference]: Finished difference Result 23334 states and 28133 transitions. [2021-11-05 20:52:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:56,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-05 20:52:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:56,305 INFO L225 Difference]: With dead ends: 23334 [2021-11-05 20:52:56,306 INFO L226 Difference]: Without dead ends: 9800 [2021-11-05 20:52:56,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:56,331 INFO L933 BasicCegarLoop]: 5343 mSDtfsCounter, 1528 mSDsluCounter, 4829 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2098.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 10172 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.06ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2245.74ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:56,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 10172 Invalid, 100 Unknown, 0 Unchecked, 9.06ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2245.74ms Time] [2021-11-05 20:52:56,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9800 states. [2021-11-05 20:52:56,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9800 to 9692. [2021-11-05 20:52:56,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9692 states, 9605 states have (on average 1.2131181676210308) internal successors, (11652), 9691 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:56,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9692 states to 9692 states and 11652 transitions. [2021-11-05 20:52:56,528 INFO L78 Accepts]: Start accepts. Automaton has 9692 states and 11652 transitions. Word has length 45 [2021-11-05 20:52:56,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:56,529 INFO L470 AbstractCegarLoop]: Abstraction has 9692 states and 11652 transitions. [2021-11-05 20:52:56,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:56,530 INFO L276 IsEmpty]: Start isEmpty. Operand 9692 states and 11652 transitions. [2021-11-05 20:52:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 20:52:56,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:56,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:56,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:52:56,532 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:52:56,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:56,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1176721246, now seen corresponding path program 1 times [2021-11-05 20:52:56,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:56,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718458854] [2021-11-05 20:52:56,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:56,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:52:56,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:56,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718458854] [2021-11-05 20:52:56,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718458854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:56,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:56,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:56,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715431976] [2021-11-05 20:52:56,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:56,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:56,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:56,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:56,659 INFO L87 Difference]: Start difference. First operand 9692 states and 11652 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:58,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:59,140 INFO L93 Difference]: Finished difference Result 26135 states and 31509 transitions. [2021-11-05 20:52:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:59,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-05 20:52:59,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:59,169 INFO L225 Difference]: With dead ends: 26135 [2021-11-05 20:52:59,169 INFO L226 Difference]: Without dead ends: 16503 [2021-11-05 20:52:59,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:59,187 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 4399 mSDsluCounter, 4302 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2050.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4399 SdHoareTripleChecker+Valid, 9301 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.48ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2164.29ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:59,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4399 Valid, 9301 Invalid, 32 Unknown, 0 Unchecked, 19.48ms Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2164.29ms Time] [2021-11-05 20:52:59,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16503 states. [2021-11-05 20:52:59,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16503 to 16019. [2021-11-05 20:52:59,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16019 states, 15932 states have (on average 1.2184910871202612) internal successors, (19413), 16018 states have internal predecessors, (19413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16019 states to 16019 states and 19413 transitions. [2021-11-05 20:52:59,485 INFO L78 Accepts]: Start accepts. Automaton has 16019 states and 19413 transitions. Word has length 50 [2021-11-05 20:52:59,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:59,485 INFO L470 AbstractCegarLoop]: Abstraction has 16019 states and 19413 transitions. [2021-11-05 20:52:59,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:59,486 INFO L276 IsEmpty]: Start isEmpty. Operand 16019 states and 19413 transitions. [2021-11-05 20:52:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-05 20:52:59,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:59,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:59,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:52:59,487 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:52:59,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:59,487 INFO L85 PathProgramCache]: Analyzing trace with hash -853583117, now seen corresponding path program 1 times [2021-11-05 20:52:59,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:59,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554751618] [2021-11-05 20:52:59,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:59,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:52:59,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:59,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554751618] [2021-11-05 20:52:59,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554751618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:59,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:59,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:59,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308764745] [2021-11-05 20:52:59,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:59,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:59,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:59,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:59,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:59,570 INFO L87 Difference]: Start difference. First operand 16019 states and 19413 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:01,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:53:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:53:02,089 INFO L93 Difference]: Finished difference Result 43853 states and 53135 transitions. [2021-11-05 20:53:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:53:02,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-05 20:53:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:53:02,149 INFO L225 Difference]: With dead ends: 43853 [2021-11-05 20:53:02,150 INFO L226 Difference]: Without dead ends: 27894 [2021-11-05 20:53:02,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:02,192 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 4573 mSDsluCounter, 4810 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2061.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4573 SdHoareTripleChecker+Valid, 9809 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.25ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2200.45ms IncrementalHoareTripleChecker+Time [2021-11-05 20:53:02,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4573 Valid, 9809 Invalid, 52 Unknown, 0 Unchecked, 11.25ms Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 2200.45ms Time] [2021-11-05 20:53:02,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27894 states. [2021-11-05 20:53:02,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27894 to 27277. [2021-11-05 20:53:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27277 states, 27190 states have (on average 1.2166605369621184) internal successors, (33081), 27276 states have internal predecessors, (33081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27277 states to 27277 states and 33081 transitions. [2021-11-05 20:53:02,862 INFO L78 Accepts]: Start accepts. Automaton has 27277 states and 33081 transitions. Word has length 54 [2021-11-05 20:53:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:53:02,863 INFO L470 AbstractCegarLoop]: Abstraction has 27277 states and 33081 transitions. [2021-11-05 20:53:02,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 27277 states and 33081 transitions. [2021-11-05 20:53:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-05 20:53:02,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:53:02,865 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:53:02,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:53:02,866 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:53:02,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:53:02,867 INFO L85 PathProgramCache]: Analyzing trace with hash 249422810, now seen corresponding path program 1 times [2021-11-05 20:53:02,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:53:02,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182968920] [2021-11-05 20:53:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:53:02,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:53:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:53:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:53:02,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:53:02,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182968920] [2021-11-05 20:53:02,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182968920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:53:02,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:53:02,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:53:02,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883083907] [2021-11-05 20:53:02,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:53:02,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:53:02,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:53:02,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:53:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:02,991 INFO L87 Difference]: Start difference. First operand 27277 states and 33081 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:04,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:53:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:53:05,359 INFO L93 Difference]: Finished difference Result 80570 states and 97786 transitions. [2021-11-05 20:53:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:53:05,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-05 20:53:05,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:53:05,477 INFO L225 Difference]: With dead ends: 80570 [2021-11-05 20:53:05,478 INFO L226 Difference]: Without dead ends: 53353 [2021-11-05 20:53:05,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:05,531 INFO L933 BasicCegarLoop]: 5533 mSDtfsCounter, 4921 mSDsluCounter, 4994 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1507.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4921 SdHoareTripleChecker+Valid, 10527 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.71ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1626.87ms IncrementalHoareTripleChecker+Time [2021-11-05 20:53:05,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4921 Valid, 10527 Invalid, 21 Unknown, 0 Unchecked, 10.71ms Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 1626.87ms Time] [2021-11-05 20:53:05,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53353 states. [2021-11-05 20:53:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53353 to 52979. [2021-11-05 20:53:06,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52979 states, 52892 states have (on average 1.217424185131967) internal successors, (64392), 52978 states have internal predecessors, (64392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52979 states to 52979 states and 64392 transitions. [2021-11-05 20:53:06,604 INFO L78 Accepts]: Start accepts. Automaton has 52979 states and 64392 transitions. Word has length 65 [2021-11-05 20:53:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:53:06,604 INFO L470 AbstractCegarLoop]: Abstraction has 52979 states and 64392 transitions. [2021-11-05 20:53:06,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:06,604 INFO L276 IsEmpty]: Start isEmpty. Operand 52979 states and 64392 transitions. [2021-11-05 20:53:06,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-05 20:53:06,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:53:06,605 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:53:06,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:53:06,605 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:53:06,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:53:06,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1844241805, now seen corresponding path program 1 times [2021-11-05 20:53:06,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:53:06,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99654738] [2021-11-05 20:53:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:53:06,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:53:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:53:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:53:06,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:53:06,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99654738] [2021-11-05 20:53:06,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99654738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:53:06,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:53:06,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:53:06,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601016263] [2021-11-05 20:53:06,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:53:06,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:53:06,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:53:06,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:53:06,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:06,708 INFO L87 Difference]: Start difference. First operand 52979 states and 64392 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:08,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:53:10,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:53:10,393 INFO L93 Difference]: Finished difference Result 157513 states and 191567 transitions. [2021-11-05 20:53:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:53:10,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-05 20:53:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:53:10,622 INFO L225 Difference]: With dead ends: 157513 [2021-11-05 20:53:10,622 INFO L226 Difference]: Without dead ends: 104645 [2021-11-05 20:53:10,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:10,873 INFO L933 BasicCegarLoop]: 5595 mSDtfsCounter, 4703 mSDsluCounter, 4983 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2051.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4703 SdHoareTripleChecker+Valid, 10578 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.70ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2161.18ms IncrementalHoareTripleChecker+Time [2021-11-05 20:53:10,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4703 Valid, 10578 Invalid, 30 Unknown, 0 Unchecked, 8.70ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2161.18ms Time] [2021-11-05 20:53:10,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104645 states. [2021-11-05 20:53:12,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104645 to 104561. [2021-11-05 20:53:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104561 states, 104474 states have (on average 1.2165514864942473) internal successors, (127098), 104560 states have internal predecessors, (127098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104561 states to 104561 states and 127098 transitions. [2021-11-05 20:53:13,349 INFO L78 Accepts]: Start accepts. Automaton has 104561 states and 127098 transitions. Word has length 68 [2021-11-05 20:53:13,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:53:13,349 INFO L470 AbstractCegarLoop]: Abstraction has 104561 states and 127098 transitions. [2021-11-05 20:53:13,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:13,350 INFO L276 IsEmpty]: Start isEmpty. Operand 104561 states and 127098 transitions. [2021-11-05 20:53:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-05 20:53:13,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:53:13,351 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:53:13,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:53:13,351 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:53:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:53:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 564378127, now seen corresponding path program 1 times [2021-11-05 20:53:13,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:53:13,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989832198] [2021-11-05 20:53:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:53:13,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:53:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:53:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:53:13,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:53:13,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989832198] [2021-11-05 20:53:13,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989832198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:53:13,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:53:13,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:53:13,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332134701] [2021-11-05 20:53:13,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:53:13,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:53:13,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:53:13,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:53:13,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:13,437 INFO L87 Difference]: Start difference. First operand 104561 states and 127098 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:15,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:53:18,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:53:18,319 INFO L93 Difference]: Finished difference Result 260709 states and 317043 transitions. [2021-11-05 20:53:18,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:53:18,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-05 20:53:18,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:53:18,655 INFO L225 Difference]: With dead ends: 260709 [2021-11-05 20:53:18,656 INFO L226 Difference]: Without dead ends: 156259 [2021-11-05 20:53:18,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:18,792 INFO L933 BasicCegarLoop]: 9706 mSDtfsCounter, 4761 mSDsluCounter, 4926 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2053.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 14632 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.77ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2161.78ms IncrementalHoareTripleChecker+Time [2021-11-05 20:53:18,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4761 Valid, 14632 Invalid, 32 Unknown, 0 Unchecked, 9.77ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2161.78ms Time] [2021-11-05 20:53:19,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156259 states. [2021-11-05 20:53:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156259 to 155958. [2021-11-05 20:53:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155958 states, 155871 states have (on average 1.216512372410519) internal successors, (189619), 155957 states have internal predecessors, (189619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155958 states to 155958 states and 189619 transitions. [2021-11-05 20:53:22,665 INFO L78 Accepts]: Start accepts. Automaton has 155958 states and 189619 transitions. Word has length 68 [2021-11-05 20:53:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:53:22,666 INFO L470 AbstractCegarLoop]: Abstraction has 155958 states and 189619 transitions. [2021-11-05 20:53:22,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:22,666 INFO L276 IsEmpty]: Start isEmpty. Operand 155958 states and 189619 transitions. [2021-11-05 20:53:22,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-05 20:53:22,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:53:22,667 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:53:22,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:53:22,668 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:53:22,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:53:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2074886486, now seen corresponding path program 1 times [2021-11-05 20:53:22,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:53:22,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557850879] [2021-11-05 20:53:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:53:22,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:53:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:53:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:53:22,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:53:22,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557850879] [2021-11-05 20:53:22,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557850879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:53:22,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:53:22,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:53:22,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106212578] [2021-11-05 20:53:22,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:53:22,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:53:22,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:53:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:53:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:53:22,811 INFO L87 Difference]: Start difference. First operand 155958 states and 189619 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:25,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:53:25,409 INFO L93 Difference]: Finished difference Result 155958 states and 189619 transitions. [2021-11-05 20:53:25,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:53:25,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-05 20:53:25,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:53:25,714 INFO L225 Difference]: With dead ends: 155958 [2021-11-05 20:53:25,714 INFO L226 Difference]: Without dead ends: 155952 [2021-11-05 20:53:25,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.97ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:53:25,764 INFO L933 BasicCegarLoop]: 4997 mSDtfsCounter, 4949 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.09ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.03ms IncrementalHoareTripleChecker+Time [2021-11-05 20:53:25,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4949 Valid, 9871 Invalid, 133 Unknown, 0 Unchecked, 16.09ms Time], IncrementalHoareTripleChecker [43 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 105.03ms Time] [2021-11-05 20:53:25,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155952 states. [2021-11-05 20:53:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155952 to 155952. [2021-11-05 20:53:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155952 states, 155868 states have (on average 1.216497292580902) internal successors, (189613), 155951 states have internal predecessors, (189613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155952 states to 155952 states and 189613 transitions. [2021-11-05 20:53:29,635 INFO L78 Accepts]: Start accepts. Automaton has 155952 states and 189613 transitions. Word has length 69 [2021-11-05 20:53:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:53:29,636 INFO L470 AbstractCegarLoop]: Abstraction has 155952 states and 189613 transitions. [2021-11-05 20:53:29,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:29,636 INFO L276 IsEmpty]: Start isEmpty. Operand 155952 states and 189613 transitions. [2021-11-05 20:53:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 20:53:29,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:53:29,637 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:53:29,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:53:29,637 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-05 20:53:29,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:53:29,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1101234713, now seen corresponding path program 1 times [2021-11-05 20:53:29,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:53:29,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338806570] [2021-11-05 20:53:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:53:29,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:53:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:53:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:53:29,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:53:29,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338806570] [2021-11-05 20:53:29,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338806570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:53:29,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:53:29,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:53:29,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509731998] [2021-11-05 20:53:29,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:53:29,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:53:29,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:53:29,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:53:29,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:53:29,753 INFO L87 Difference]: Start difference. First operand 155952 states and 189613 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:53:32,701 INFO L93 Difference]: Finished difference Result 155952 states and 189613 transitions. [2021-11-05 20:53:32,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:53:32,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-05 20:53:32,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:53:32,986 INFO L225 Difference]: With dead ends: 155952 [2021-11-05 20:53:32,987 INFO L226 Difference]: Without dead ends: 155946 [2021-11-05 20:53:33,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:53:33,034 INFO L933 BasicCegarLoop]: 4991 mSDtfsCounter, 4938 mSDsluCounter, 4871 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4938 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.09ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.06ms IncrementalHoareTripleChecker+Time [2021-11-05 20:53:33,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4938 Valid, 9862 Invalid, 133 Unknown, 0 Unchecked, 15.09ms Time], IncrementalHoareTripleChecker [46 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 96.06ms Time] [2021-11-05 20:53:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155946 states.