./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 5b36d44f 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-5b36d44 [2021-11-07 17:33:37,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:33:37,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:33:37,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:33:37,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:33:37,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:33:37,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:33:37,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:33:37,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:33:37,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:33:37,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:33:37,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:33:37,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:33:37,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:33:37,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:33:37,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:33:37,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:33:37,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:33:37,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:33:37,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:33:37,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:33:37,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:33:37,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:33:37,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:33:37,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:33:37,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:33:37,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:33:37,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:33:37,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:33:37,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:33:37,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:33:37,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:33:37,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:33:37,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:33:37,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:33:37,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:33:37,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:33:37,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:33:37,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:33:37,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:33:37,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:33:37,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:33:37,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:33:37,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:33:37,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:33:37,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:33:37,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:33:37,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:33:37,715 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:33:37,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:33:37,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:33:37,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:33:37,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:33:37,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:33:37,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:33:37,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:33:37,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:33:37,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:33:37,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:33:37,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:33:37,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:33:37,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:33:37,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:33:37,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:33:37,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:33:37,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:33:37,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:33:37,722 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:33:37,722 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:33:37,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:33:37,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:33:37,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-07 17:33:37,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:33:37,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:33:37,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:33:37,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:33:37,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:33:37,936 INFO L432 ainManager$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 [2021-11-07 17:33:37,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3321be775/4ceb3d5a215346278398dd91b7b2876f/FLAG9b2b00599 [2021-11-07 17:33:38,666 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:33:38,666 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 [2021-11-07 17:33:38,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3321be775/4ceb3d5a215346278398dd91b7b2876f/FLAG9b2b00599 [2021-11-07 17:33:39,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3321be775/4ceb3d5a215346278398dd91b7b2876f [2021-11-07 17:33:39,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:33:39,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:33:39,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:33:39,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:33:39,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:33:39,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:33:39" (1/1) ... [2021-11-07 17:33:39,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74309bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:39, skipping insertion in model container [2021-11-07 17:33:39,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:33:39" (1/1) ... [2021-11-07 17:33:39,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:33:39,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:33:40,962 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] [2021-11-07 17:33:40,967 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] [2021-11-07 17:33:40,967 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] [2021-11-07 17:33:40,967 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] [2021-11-07 17:33:40,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:33:41,023 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:33:41,251 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] [2021-11-07 17:33:41,252 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] [2021-11-07 17:33:41,252 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] [2021-11-07 17:33:41,252 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] [2021-11-07 17:33:41,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:33:41,356 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:33:41,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41 WrapperNode [2021-11-07 17:33:41,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:33:41,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:33:41,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:33:41,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:33:41,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:41,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:41,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:33:41,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:33:41,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:33:41,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:33:41,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:41,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:42,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:42,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:42,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:42,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:42,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:42,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:33:42,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:33:42,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:33:42,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:33:42,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (1/1) ... [2021-11-07 17:33:42,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:33:42,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:33:42,754 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) [2021-11-07 17:33:42,757 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 [2021-11-07 17:33:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 17:33:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:33:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:33:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:33:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:33:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:33:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:33:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:33:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:33:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:33:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:33:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:33:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:33:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:33:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:33:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:33:50,803 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:33:50,805 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:33:50,805 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:33:50,806 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:33:50,806 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:33:50,828 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:33:50,828 INFO L299 CfgBuilder]: Removed 5367 assume(true) statements. [2021-11-07 17:33:50,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:33:50 BoogieIcfgContainer [2021-11-07 17:33:50,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:33:50,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:33:50,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:33:50,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:33:50,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:33:39" (1/3) ... [2021-11-07 17:33:50,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36aa0b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:33:50, skipping insertion in model container [2021-11-07 17:33:50,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:33:41" (2/3) ... [2021-11-07 17:33:50,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36aa0b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:33:50, skipping insertion in model container [2021-11-07 17:33:50,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:33:50" (3/3) ... [2021-11-07 17:33:50,840 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-07 17:33:50,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:33:50,844 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-07 17:33:50,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:33:50,897 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 [2021-11-07 17:33:50,897 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-07 17:33:50,948 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) [2021-11-07 17:33:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 17:33:50,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:50,955 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] [2021-11-07 17:33:50,956 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)] === [2021-11-07 17:33:50,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:50,959 INFO L85 PathProgramCache]: Analyzing trace with hash 462445981, now seen corresponding path program 1 times [2021-11-07 17:33:50,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:50,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523769335] [2021-11-07 17:33:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:50,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:33:51,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:51,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523769335] [2021-11-07 17:33:51,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523769335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:51,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:51,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:51,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396090517] [2021-11-07 17:33:51,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:51,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:33:51,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:51,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:33:51,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:33:51,386 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) [2021-11-07 17:33:53,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:33:53,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:53,987 INFO L93 Difference]: Finished difference Result 12675 states and 15903 transitions. [2021-11-07 17:33:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:33:53,989 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 [2021-11-07 17:33:53,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:54,031 INFO L225 Difference]: With dead ends: 12675 [2021-11-07 17:33:54,032 INFO L226 Difference]: Without dead ends: 8102 [2021-11-07 17:33:54,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:33:54,052 INFO L933 BasicCegarLoop]: 5321 mSDtfsCounter, 4995 mSDsluCounter, 5274 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2065.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4995 SdHoareTripleChecker+Valid, 10595 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.24ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2164.18ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:54,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4995 Valid, 10595 Invalid, 34 Unknown, 0 Unchecked, 26.24ms Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2164.18ms Time] [2021-11-07 17:33:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8102 states. [2021-11-07 17:33:54,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8102 to 8018. [2021-11-07 17:33:54,268 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) [2021-11-07 17:33:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 9673 transitions. [2021-11-07 17:33:54,293 INFO L78 Accepts]: Start accepts. Automaton has 8018 states and 9673 transitions. Word has length 39 [2021-11-07 17:33:54,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:54,293 INFO L470 AbstractCegarLoop]: Abstraction has 8018 states and 9673 transitions. [2021-11-07 17:33:54,293 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) [2021-11-07 17:33:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8018 states and 9673 transitions. [2021-11-07 17:33:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 17:33:54,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:54,300 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] [2021-11-07 17:33:54,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:33:54,300 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)] === [2021-11-07 17:33:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash -958248383, now seen corresponding path program 1 times [2021-11-07 17:33:54,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:54,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880111595] [2021-11-07 17:33:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:54,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:33:54,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:54,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880111595] [2021-11-07 17:33:54,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880111595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:54,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:54,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:54,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742820760] [2021-11-07 17:33:54,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:54,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:33:54,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:54,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:33:54,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:33:54,469 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) [2021-11-07 17:33:56,492 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 [] [2021-11-07 17:33:57,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:57,088 INFO L93 Difference]: Finished difference Result 23036 states and 27765 transitions. [2021-11-07 17:33:57,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:33:57,089 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 [2021-11-07 17:33:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:57,135 INFO L225 Difference]: With dead ends: 23036 [2021-11-07 17:33:57,136 INFO L226 Difference]: Without dead ends: 15078 [2021-11-07 17:33:57,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:33:57,151 INFO L933 BasicCegarLoop]: 4995 mSDtfsCounter, 4569 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2072.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 9765 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.46ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2197.28ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:57,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4569 Valid, 9765 Invalid, 51 Unknown, 0 Unchecked, 13.46ms Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2197.28ms Time] [2021-11-07 17:33:57,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15078 states. [2021-11-07 17:33:57,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15078 to 13594. [2021-11-07 17:33:57,430 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) [2021-11-07 17:33:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13594 states to 13594 states and 16406 transitions. [2021-11-07 17:33:57,461 INFO L78 Accepts]: Start accepts. Automaton has 13594 states and 16406 transitions. Word has length 39 [2021-11-07 17:33:57,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:57,466 INFO L470 AbstractCegarLoop]: Abstraction has 13594 states and 16406 transitions. [2021-11-07 17:33:57,467 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) [2021-11-07 17:33:57,467 INFO L276 IsEmpty]: Start isEmpty. Operand 13594 states and 16406 transitions. [2021-11-07 17:33:57,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 17:33:57,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:57,469 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] [2021-11-07 17:33:57,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:33:57,470 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)] === [2021-11-07 17:33:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 914697269, now seen corresponding path program 1 times [2021-11-07 17:33:57,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:57,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058159030] [2021-11-07 17:33:57,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:57,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:57,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:33:57,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:57,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058159030] [2021-11-07 17:33:57,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058159030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:57,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:57,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:57,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530024175] [2021-11-07 17:33:57,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:57,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:33:57,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:57,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:33:57,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:33:57,609 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) [2021-11-07 17:33:59,633 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 [] [2021-11-07 17:34:00,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:00,136 INFO L93 Difference]: Finished difference Result 23334 states and 28133 transitions. [2021-11-07 17:34:00,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:00,136 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 [2021-11-07 17:34:00,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:00,175 INFO L225 Difference]: With dead ends: 23334 [2021-11-07 17:34:00,175 INFO L226 Difference]: Without dead ends: 9800 [2021-11-07 17:34:00,192 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 [2021-11-07 17:34:00,195 INFO L933 BasicCegarLoop]: 5343 mSDtfsCounter, 1528 mSDsluCounter, 4829 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2120.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 10172 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.60ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2259.80ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:00,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 10172 Invalid, 100 Unknown, 0 Unchecked, 10.60ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2259.80ms Time] [2021-11-07 17:34:00,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9800 states. [2021-11-07 17:34:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9800 to 9692. [2021-11-07 17:34:00,371 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) [2021-11-07 17:34:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9692 states to 9692 states and 11652 transitions. [2021-11-07 17:34:00,388 INFO L78 Accepts]: Start accepts. Automaton has 9692 states and 11652 transitions. Word has length 45 [2021-11-07 17:34:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:00,389 INFO L470 AbstractCegarLoop]: Abstraction has 9692 states and 11652 transitions. [2021-11-07 17:34:00,389 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) [2021-11-07 17:34:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 9692 states and 11652 transitions. [2021-11-07 17:34:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 17:34:00,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:00,390 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] [2021-11-07 17:34:00,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:34:00,391 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)] === [2021-11-07 17:34:00,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1176721246, now seen corresponding path program 1 times [2021-11-07 17:34:00,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:00,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137553566] [2021-11-07 17:34:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:00,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:00,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:00,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137553566] [2021-11-07 17:34:00,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137553566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:00,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:00,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:00,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283107373] [2021-11-07 17:34:00,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:00,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:00,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:00,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:00,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:00,513 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) [2021-11-07 17:34:02,533 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 [] [2021-11-07 17:34:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:02,921 INFO L93 Difference]: Finished difference Result 26135 states and 31509 transitions. [2021-11-07 17:34:02,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:02,921 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 [2021-11-07 17:34:02,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:02,956 INFO L225 Difference]: With dead ends: 26135 [2021-11-07 17:34:02,957 INFO L226 Difference]: Without dead ends: 16503 [2021-11-07 17:34:02,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:02,977 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 4399 mSDsluCounter, 4302 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2048.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4399 SdHoareTripleChecker+Valid, 9301 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.35ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2161.73ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:02,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4399 Valid, 9301 Invalid, 32 Unknown, 0 Unchecked, 11.35ms Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2161.73ms Time] [2021-11-07 17:34:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16503 states. [2021-11-07 17:34:03,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16503 to 16019. [2021-11-07 17:34:03,305 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) [2021-11-07 17:34:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16019 states to 16019 states and 19413 transitions. [2021-11-07 17:34:03,331 INFO L78 Accepts]: Start accepts. Automaton has 16019 states and 19413 transitions. Word has length 50 [2021-11-07 17:34:03,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:03,332 INFO L470 AbstractCegarLoop]: Abstraction has 16019 states and 19413 transitions. [2021-11-07 17:34:03,332 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) [2021-11-07 17:34:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand 16019 states and 19413 transitions. [2021-11-07 17:34:03,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 17:34:03,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:03,333 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] [2021-11-07 17:34:03,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:34:03,334 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)] === [2021-11-07 17:34:03,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:03,334 INFO L85 PathProgramCache]: Analyzing trace with hash -853583117, now seen corresponding path program 1 times [2021-11-07 17:34:03,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:03,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815646771] [2021-11-07 17:34:03,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:03,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:03,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:03,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815646771] [2021-11-07 17:34:03,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815646771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:03,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:03,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:03,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150097135] [2021-11-07 17:34:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:03,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:03,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:03,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:03,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:03,437 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) [2021-11-07 17:34:05,459 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 [] [2021-11-07 17:34:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:06,047 INFO L93 Difference]: Finished difference Result 43853 states and 53135 transitions. [2021-11-07 17:34:06,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:06,047 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 [2021-11-07 17:34:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:06,107 INFO L225 Difference]: With dead ends: 43853 [2021-11-07 17:34:06,107 INFO L226 Difference]: Without dead ends: 27894 [2021-11-07 17:34:06,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:06,148 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 4573 mSDsluCounter, 4810 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2064.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4573 SdHoareTripleChecker+Valid, 9809 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.60ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2200.45ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:06,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4573 Valid, 9809 Invalid, 52 Unknown, 0 Unchecked, 11.60ms Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 2200.45ms Time] [2021-11-07 17:34:06,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27894 states. [2021-11-07 17:34:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27894 to 27277. [2021-11-07 17:34:06,820 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) [2021-11-07 17:34:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27277 states to 27277 states and 33081 transitions. [2021-11-07 17:34:06,858 INFO L78 Accepts]: Start accepts. Automaton has 27277 states and 33081 transitions. Word has length 54 [2021-11-07 17:34:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:06,858 INFO L470 AbstractCegarLoop]: Abstraction has 27277 states and 33081 transitions. [2021-11-07 17:34:06,859 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) [2021-11-07 17:34:06,859 INFO L276 IsEmpty]: Start isEmpty. Operand 27277 states and 33081 transitions. [2021-11-07 17:34:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 17:34:06,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:06,861 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] [2021-11-07 17:34:06,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:34:06,861 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)] === [2021-11-07 17:34:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash 249422810, now seen corresponding path program 1 times [2021-11-07 17:34:06,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:06,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384609484] [2021-11-07 17:34:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:06,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:06,960 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:06,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:06,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384609484] [2021-11-07 17:34:06,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384609484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:06,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:06,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:06,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325528748] [2021-11-07 17:34:06,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:06,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:06,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:06,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:06,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:06,962 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) [2021-11-07 17:34:08,983 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 [] [2021-11-07 17:34:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:10,038 INFO L93 Difference]: Finished difference Result 80570 states and 97786 transitions. [2021-11-07 17:34:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:10,038 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 [2021-11-07 17:34:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:10,163 INFO L225 Difference]: With dead ends: 80570 [2021-11-07 17:34:10,164 INFO L226 Difference]: Without dead ends: 53353 [2021-11-07 17:34:10,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:10,220 INFO L933 BasicCegarLoop]: 5533 mSDtfsCounter, 4921 mSDsluCounter, 4994 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2033.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4921 SdHoareTripleChecker+Valid, 10527 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.49ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2145.09ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:10,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4921 Valid, 10527 Invalid, 21 Unknown, 0 Unchecked, 10.49ms Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2145.09ms Time] [2021-11-07 17:34:10,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53353 states. [2021-11-07 17:34:11,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53353 to 52979. [2021-11-07 17:34:11,306 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) [2021-11-07 17:34:11,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52979 states to 52979 states and 64392 transitions. [2021-11-07 17:34:11,393 INFO L78 Accepts]: Start accepts. Automaton has 52979 states and 64392 transitions. Word has length 65 [2021-11-07 17:34:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:11,393 INFO L470 AbstractCegarLoop]: Abstraction has 52979 states and 64392 transitions. [2021-11-07 17:34:11,393 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) [2021-11-07 17:34:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 52979 states and 64392 transitions. [2021-11-07 17:34:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 17:34:11,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:11,394 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] [2021-11-07 17:34:11,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:34:11,394 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)] === [2021-11-07 17:34:11,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:11,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1844241805, now seen corresponding path program 1 times [2021-11-07 17:34:11,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:11,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202798233] [2021-11-07 17:34:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:11,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:11,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:11,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202798233] [2021-11-07 17:34:11,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202798233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:11,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:11,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:11,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066100387] [2021-11-07 17:34:11,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:11,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:11,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:11,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:11,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:11,472 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) [2021-11-07 17:34:13,493 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 [] [2021-11-07 17:34:15,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:15,133 INFO L93 Difference]: Finished difference Result 157513 states and 191567 transitions. [2021-11-07 17:34:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:15,134 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 [2021-11-07 17:34:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:15,395 INFO L225 Difference]: With dead ends: 157513 [2021-11-07 17:34:15,395 INFO L226 Difference]: Without dead ends: 104645 [2021-11-07 17:34:15,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:15,497 INFO L933 BasicCegarLoop]: 5595 mSDtfsCounter, 4703 mSDsluCounter, 4983 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2049.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4703 SdHoareTripleChecker+Valid, 10578 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.58ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2167.36ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:15,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4703 Valid, 10578 Invalid, 30 Unknown, 0 Unchecked, 8.58ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2167.36ms Time] [2021-11-07 17:34:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104645 states. [2021-11-07 17:34:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104645 to 104561. [2021-11-07 17:34:18,008 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) [2021-11-07 17:34:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104561 states to 104561 states and 127098 transitions. [2021-11-07 17:34:18,220 INFO L78 Accepts]: Start accepts. Automaton has 104561 states and 127098 transitions. Word has length 68 [2021-11-07 17:34:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:18,220 INFO L470 AbstractCegarLoop]: Abstraction has 104561 states and 127098 transitions. [2021-11-07 17:34:18,221 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) [2021-11-07 17:34:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 104561 states and 127098 transitions. [2021-11-07 17:34:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 17:34:18,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:18,222 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] [2021-11-07 17:34:18,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:34:18,222 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)] === [2021-11-07 17:34:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash 564378127, now seen corresponding path program 1 times [2021-11-07 17:34:18,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:18,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653438224] [2021-11-07 17:34:18,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:18,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:18,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:18,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:18,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653438224] [2021-11-07 17:34:18,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653438224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:18,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:18,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:18,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283076109] [2021-11-07 17:34:18,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:18,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:18,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:18,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:18,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:18,297 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) [2021-11-07 17:34:20,320 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 [] [2021-11-07 17:34:23,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:23,456 INFO L93 Difference]: Finished difference Result 260709 states and 317043 transitions. [2021-11-07 17:34:23,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:23,457 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 [2021-11-07 17:34:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:23,773 INFO L225 Difference]: With dead ends: 260709 [2021-11-07 17:34:23,774 INFO L226 Difference]: Without dead ends: 156259 [2021-11-07 17:34:23,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:23,905 INFO L933 BasicCegarLoop]: 9706 mSDtfsCounter, 4761 mSDsluCounter, 4926 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2043.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 14632 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.70ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2142.82ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:23,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4761 Valid, 14632 Invalid, 32 Unknown, 0 Unchecked, 10.70ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2142.82ms Time] [2021-11-07 17:34:24,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156259 states. [2021-11-07 17:34:27,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156259 to 155958. [2021-11-07 17:34:27,333 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) [2021-11-07 17:34:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155958 states to 155958 states and 189619 transitions. [2021-11-07 17:34:27,626 INFO L78 Accepts]: Start accepts. Automaton has 155958 states and 189619 transitions. Word has length 68 [2021-11-07 17:34:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:27,626 INFO L470 AbstractCegarLoop]: Abstraction has 155958 states and 189619 transitions. [2021-11-07 17:34:27,626 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) [2021-11-07 17:34:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 155958 states and 189619 transitions. [2021-11-07 17:34:27,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 17:34:27,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:27,628 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] [2021-11-07 17:34:27,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 17:34:27,628 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)] === [2021-11-07 17:34:27,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2074886486, now seen corresponding path program 1 times [2021-11-07 17:34:27,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:27,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257794504] [2021-11-07 17:34:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:27,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:34:27,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:27,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257794504] [2021-11-07 17:34:27,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257794504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:27,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:27,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:27,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475754114] [2021-11-07 17:34:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:27,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:34:27,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:27,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:34:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:34:27,787 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) [2021-11-07 17:34:30,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:30,765 INFO L93 Difference]: Finished difference Result 155958 states and 189619 transitions. [2021-11-07 17:34:30,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:34:30,766 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 [2021-11-07 17:34:30,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:31,069 INFO L225 Difference]: With dead ends: 155958 [2021-11-07 17:34:31,070 INFO L226 Difference]: Without dead ends: 155952 [2021-11-07 17:34:31,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:34:31,118 INFO L933 BasicCegarLoop]: 4997 mSDtfsCounter, 4949 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.99ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.92ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:31,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4949 Valid, 9871 Invalid, 133 Unknown, 0 Unchecked, 49.99ms Time], IncrementalHoareTripleChecker [43 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 100.92ms Time] [2021-11-07 17:34:31,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155952 states. [2021-11-07 17:34:34,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155952 to 155952. [2021-11-07 17:34:34,766 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) [2021-11-07 17:34:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155952 states to 155952 states and 189613 transitions. [2021-11-07 17:34:35,051 INFO L78 Accepts]: Start accepts. Automaton has 155952 states and 189613 transitions. Word has length 69 [2021-11-07 17:34:35,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:35,051 INFO L470 AbstractCegarLoop]: Abstraction has 155952 states and 189613 transitions. [2021-11-07 17:34:35,052 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) [2021-11-07 17:34:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 155952 states and 189613 transitions. [2021-11-07 17:34:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 17:34:35,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:35,053 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] [2021-11-07 17:34:35,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 17:34:35,053 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)] === [2021-11-07 17:34:35,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1101234713, now seen corresponding path program 1 times [2021-11-07 17:34:35,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:35,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201986508] [2021-11-07 17:34:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:35,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:34:35,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:35,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201986508] [2021-11-07 17:34:35,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201986508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:35,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:35,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:35,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290676729] [2021-11-07 17:34:35,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:35,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:34:35,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:35,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:34:35,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:34:35,171 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) [2021-11-07 17:34:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:38,152 INFO L93 Difference]: Finished difference Result 155952 states and 189613 transitions. [2021-11-07 17:34:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:34:38,152 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 [2021-11-07 17:34:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:38,482 INFO L225 Difference]: With dead ends: 155952 [2021-11-07 17:34:38,482 INFO L226 Difference]: Without dead ends: 155946 [2021-11-07 17:34:38,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:34:38,540 INFO L933 BasicCegarLoop]: 4991 mSDtfsCounter, 4938 mSDsluCounter, 4871 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4938 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.39ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.44ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:38,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4938 Valid, 9862 Invalid, 133 Unknown, 0 Unchecked, 14.39ms Time], IncrementalHoareTripleChecker [46 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 100.44ms Time] [2021-11-07 17:34:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155946 states.