./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-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-ethernet-icplus-ipg.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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:20:32,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:20:32,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:20:32,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:20:32,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:20:32,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:20:32,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:20:32,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:20:32,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:20:32,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:20:32,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:20:32,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:20:32,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:20:32,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:20:32,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:20:32,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:20:32,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:20:32,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:20:32,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:20:32,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:20:32,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:20:32,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:20:32,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:20:32,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:20:32,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:20:32,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:20:32,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:20:32,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:20:32,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:20:32,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:20:32,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:20:32,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:20:32,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:20:33,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:20:33,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:20:33,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:20:33,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:20:33,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:20:33,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:20:33,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:20:33,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:20:33,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:20:33,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:20:33,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:20:33,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:20:33,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:20:33,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:20:33,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:20:33,021 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:20:33,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:20:33,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:20:33,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:20:33,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:20:33,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:20:33,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:20:33,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:20:33,022 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:20:33,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:20:33,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:20:33,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:20:33,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:20:33,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:20:33,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:20:33,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:20:33,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:20:33,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:20:33,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:20:33,024 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:20:33,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:20:33,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:20:33,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:20:33,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-11-04 10:20:33,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:20:33,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:20:33,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:20:33,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:20:33,210 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:20:33,211 INFO L432 ainManager$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-ethernet-icplus-ipg.cil.i [2021-11-04 10:20:33,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76d2ca83/2f6ec040494f4826b9dda1c8eaa0f0a7/FLAG3f71a1035 [2021-11-04 10:20:33,893 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:20:33,894 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-ethernet-icplus-ipg.cil.i [2021-11-04 10:20:33,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76d2ca83/2f6ec040494f4826b9dda1c8eaa0f0a7/FLAG3f71a1035 [2021-11-04 10:20:34,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76d2ca83/2f6ec040494f4826b9dda1c8eaa0f0a7 [2021-11-04 10:20:34,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:20:34,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:20:34,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:20:34,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:20:34,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:20:34,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:20:34" (1/1) ... [2021-11-04 10:20:34,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1adcd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:34, skipping insertion in model container [2021-11-04 10:20:34,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:20:34" (1/1) ... [2021-11-04 10:20:34,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:20:34,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:20:36,514 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-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-04 10:20:36,517 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-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-04 10:20:36,517 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-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-04 10:20:36,518 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-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-04 10:20:36,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:20:36,584 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:20:36,823 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-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-04 10:20:36,825 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-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-04 10:20:36,825 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-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-04 10:20:36,825 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-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-04 10:20:36,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:20:36,951 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:20:36,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36 WrapperNode [2021-11-04 10:20:36,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:20:36,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:20:36,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:20:36,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:20:36,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:37,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:37,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:20:37,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:20:37,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:20:37,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:20:37,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:37,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:37,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:37,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:38,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:38,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:38,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:38,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:20:38,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:20:38,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:20:38,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:20:38,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (1/1) ... [2021-11-04 10:20:38,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:20:38,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:20:38,483 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) [2021-11-04 10:20:38,501 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 [2021-11-04 10:20:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:20:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:20:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:20:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:20:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:20:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:20:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:20:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:20:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:20:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:20:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:20:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:20:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:20:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:20:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-04 10:20:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:20:41,417 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:20:41,417 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 10:20:41,418 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:20:41,418 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:20:41,419 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:20:41,419 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:20:41,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:20:41,436 INFO L299 CfgBuilder]: Removed 5020 assume(true) statements. [2021-11-04 10:20:41,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:20:41 BoogieIcfgContainer [2021-11-04 10:20:41,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:20:41,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:20:41,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:20:41,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:20:41,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:20:34" (1/3) ... [2021-11-04 10:20:41,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1072b8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:20:41, skipping insertion in model container [2021-11-04 10:20:41,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:20:36" (2/3) ... [2021-11-04 10:20:41,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1072b8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:20:41, skipping insertion in model container [2021-11-04 10:20:41,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:20:41" (3/3) ... [2021-11-04 10:20:41,447 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-04 10:20:41,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:20:41,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-04 10:20:41,490 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:20:41,495 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 [2021-11-04 10:20:41,495 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-04 10:20:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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) [2021-11-04 10:20:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-04 10:20:41,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:20:41,562 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] [2021-11-04 10:20:41,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:20:41,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:20:41,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2021-11-04 10:20:41,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:20:41,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367930540] [2021-11-04 10:20:41,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:20:41,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:20:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:20:41,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:20:41,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:20:41,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367930540] [2021-11-04 10:20:41,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367930540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:20:41,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:20:41,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:20:41,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290227466] [2021-11-04 10:20:41,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:20:41,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:20:41,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:20:41,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:20:41,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:20:41,970 INFO L87 Difference]: Start difference. First operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-04 10:20:55,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:58,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:20:58,234 INFO L93 Difference]: Finished difference Result 12072 states and 15622 transitions. [2021-11-04 10:20:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:20:58,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-04 10:20:58,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:20:58,285 INFO L225 Difference]: With dead ends: 12072 [2021-11-04 10:20:58,285 INFO L226 Difference]: Without dead ends: 7724 [2021-11-04 10:20:58,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:20:58,301 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 4901 mSDsluCounter, 5158 mSDsCounter, 0 mSdLazyCounter, 10122 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13835.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4901 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 10130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.81ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 10122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15697.36ms IncrementalHoareTripleChecker+Time [2021-11-04 10:20:58,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4901 Valid, 269 Invalid, 10130 Unknown, 0 Unchecked, 30.81ms Time], IncrementalHoareTripleChecker [7 Valid, 10122 Invalid, 1 Unknown, 0 Unchecked, 15697.36ms Time] [2021-11-04 10:20:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2021-11-04 10:20:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7708. [2021-11-04 10:20:58,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7708 states, 7664 states have (on average 1.2519572025052192) internal successors, (9595), 7707 states have internal predecessors, (9595), 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) [2021-11-04 10:20:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 9595 transitions. [2021-11-04 10:20:58,525 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 9595 transitions. Word has length 42 [2021-11-04 10:20:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:20:58,526 INFO L470 AbstractCegarLoop]: Abstraction has 7708 states and 9595 transitions. [2021-11-04 10:20:58,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-04 10:20:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 9595 transitions. [2021-11-04 10:20:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-04 10:20:58,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:20:58,532 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] [2021-11-04 10:20:58,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 10:20:58,533 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:20:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:20:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1435015324, now seen corresponding path program 1 times [2021-11-04 10:20:58,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:20:58,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411853746] [2021-11-04 10:20:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:20:58,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:20:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:20:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:20:58,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:20:58,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411853746] [2021-11-04 10:20:58,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411853746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:20:58,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:20:58,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:20:58,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233643522] [2021-11-04 10:20:58,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:20:58,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:20:58,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:20:58,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:20:58,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:20:58,689 INFO L87 Difference]: Start difference. First operand 7708 states and 9595 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-04 10:21:16,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:16,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:21:16,934 INFO L93 Difference]: Finished difference Result 21388 states and 26599 transitions. [2021-11-04 10:21:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:21:16,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-04 10:21:16,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:21:16,987 INFO L225 Difference]: With dead ends: 21388 [2021-11-04 10:21:16,987 INFO L226 Difference]: Without dead ends: 13748 [2021-11-04 10:21:17,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:21:17,006 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3875 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 9816 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15887.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.59ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 9816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17684.95ms IncrementalHoareTripleChecker+Time [2021-11-04 10:21:17,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3875 Valid, 0 Invalid, 9839 Unknown, 0 Unchecked, 28.59ms Time], IncrementalHoareTripleChecker [23 Valid, 9816 Invalid, 0 Unknown, 0 Unchecked, 17684.95ms Time] [2021-11-04 10:21:17,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13748 states. [2021-11-04 10:21:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13748 to 11656. [2021-11-04 10:21:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 11612 states have (on average 1.2506889424733034) internal successors, (14523), 11655 states have internal predecessors, (14523), 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) [2021-11-04 10:21:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 14523 transitions. [2021-11-04 10:21:17,404 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 14523 transitions. Word has length 42 [2021-11-04 10:21:17,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:21:17,405 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 14523 transitions. [2021-11-04 10:21:17,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-04 10:21:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 14523 transitions. [2021-11-04 10:21:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-04 10:21:17,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:21:17,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:21:17,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 10:21:17,411 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:21:17,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:21:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash -234934328, now seen corresponding path program 1 times [2021-11-04 10:21:17,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:21:17,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908318278] [2021-11-04 10:21:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:21:17,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:21:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:21:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:21:17,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:21:17,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908318278] [2021-11-04 10:21:17,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908318278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:21:17,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:21:17,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:21:17,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842615708] [2021-11-04 10:21:17,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:21:17,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:21:17,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:21:17,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:21:17,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:21:17,564 INFO L87 Difference]: Start difference. First operand 11656 states and 14523 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-04 10:21:32,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:21:34,072 INFO L93 Difference]: Finished difference Result 21927 states and 27451 transitions. [2021-11-04 10:21:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:21:34,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-04 10:21:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:21:34,102 INFO L225 Difference]: With dead ends: 21927 [2021-11-04 10:21:34,103 INFO L226 Difference]: Without dead ends: 10339 [2021-11-04 10:21:34,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:21:34,117 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2153 mSDsluCounter, 4784 mSDsCounter, 0 mSdLazyCounter, 10745 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14319.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.51ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 10745 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15978.08ms IncrementalHoareTripleChecker+Time [2021-11-04 10:21:34,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2153 Valid, 0 Invalid, 10767 Unknown, 0 Unchecked, 19.51ms Time], IncrementalHoareTripleChecker [21 Valid, 10745 Invalid, 1 Unknown, 0 Unchecked, 15978.08ms Time] [2021-11-04 10:21:34,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10339 states. [2021-11-04 10:21:34,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10339 to 10257. [2021-11-04 10:21:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10257 states, 10213 states have (on average 1.2596690492509546) internal successors, (12865), 10256 states have internal predecessors, (12865), 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) [2021-11-04 10:21:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10257 states to 10257 states and 12865 transitions. [2021-11-04 10:21:34,314 INFO L78 Accepts]: Start accepts. Automaton has 10257 states and 12865 transitions. Word has length 57 [2021-11-04 10:21:34,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:21:34,315 INFO L470 AbstractCegarLoop]: Abstraction has 10257 states and 12865 transitions. [2021-11-04 10:21:34,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-04 10:21:34,315 INFO L276 IsEmpty]: Start isEmpty. Operand 10257 states and 12865 transitions. [2021-11-04 10:21:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-04 10:21:34,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:21:34,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:21:34,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:21:34,317 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:21:34,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:21:34,317 INFO L85 PathProgramCache]: Analyzing trace with hash -465593213, now seen corresponding path program 1 times [2021-11-04 10:21:34,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:21:34,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953996138] [2021-11-04 10:21:34,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:21:34,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:21:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:21:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:21:34,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:21:34,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953996138] [2021-11-04 10:21:34,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953996138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:21:34,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:21:34,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:21:34,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470095693] [2021-11-04 10:21:34,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:21:34,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:21:34,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:21:34,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:21:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:21:34,461 INFO L87 Difference]: Start difference. First operand 10257 states and 12865 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-04 10:21:44,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:51,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:21:51,633 INFO L93 Difference]: Finished difference Result 24003 states and 30042 transitions. [2021-11-04 10:21:51,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:21:51,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-04 10:21:51,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:21:51,670 INFO L225 Difference]: With dead ends: 24003 [2021-11-04 10:21:51,670 INFO L226 Difference]: Without dead ends: 13814 [2021-11-04 10:21:51,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:21:51,689 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3925 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 9863 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14874.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3925 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.31ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16720.18ms IncrementalHoareTripleChecker+Time [2021-11-04 10:21:51,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3925 Valid, 0 Invalid, 9873 Unknown, 0 Unchecked, 16.31ms Time], IncrementalHoareTripleChecker [9 Valid, 9863 Invalid, 1 Unknown, 0 Unchecked, 16720.18ms Time] [2021-11-04 10:21:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13814 states. [2021-11-04 10:21:51,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13814 to 13369. [2021-11-04 10:21:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13325 states have (on average 1.255234521575985) internal successors, (16726), 13368 states have internal predecessors, (16726), 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) [2021-11-04 10:21:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 16726 transitions. [2021-11-04 10:21:51,956 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 16726 transitions. Word has length 61 [2021-11-04 10:21:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:21:51,957 INFO L470 AbstractCegarLoop]: Abstraction has 13369 states and 16726 transitions. [2021-11-04 10:21:51,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-04 10:21:51,958 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 16726 transitions. [2021-11-04 10:21:51,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-04 10:21:51,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:21:51,960 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, 1, 1, 1] [2021-11-04 10:21:51,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:21:51,960 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:21:51,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:21:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash 451869666, now seen corresponding path program 1 times [2021-11-04 10:21:51,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:21:51,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146667809] [2021-11-04 10:21:51,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:21:51,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:21:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:21:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:21:52,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:21:52,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146667809] [2021-11-04 10:21:52,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146667809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:21:52,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:21:52,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:21:52,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766701326] [2021-11-04 10:21:52,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:21:52,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:21:52,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:21:52,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:21:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:21:52,154 INFO L87 Difference]: Start difference. First operand 13369 states and 16726 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:22:06,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:22:09,868 INFO L93 Difference]: Finished difference Result 39403 states and 49397 transitions. [2021-11-04 10:22:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:22:09,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-04 10:22:09,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:22:09,932 INFO L225 Difference]: With dead ends: 39403 [2021-11-04 10:22:09,932 INFO L226 Difference]: Without dead ends: 26165 [2021-11-04 10:22:09,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:22:09,960 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4660 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 9944 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15148.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4660 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.08ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9944 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17047.64ms IncrementalHoareTripleChecker+Time [2021-11-04 10:22:09,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4660 Valid, 0 Invalid, 9950 Unknown, 0 Unchecked, 21.08ms Time], IncrementalHoareTripleChecker [5 Valid, 9944 Invalid, 1 Unknown, 0 Unchecked, 17047.64ms Time] [2021-11-04 10:22:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26165 states. [2021-11-04 10:22:10,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26165 to 26149. [2021-11-04 10:22:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26149 states, 26105 states have (on average 1.255468301091745) internal successors, (32774), 26148 states have internal predecessors, (32774), 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) [2021-11-04 10:22:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26149 states to 26149 states and 32774 transitions. [2021-11-04 10:22:10,595 INFO L78 Accepts]: Start accepts. Automaton has 26149 states and 32774 transitions. Word has length 71 [2021-11-04 10:22:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:22:10,596 INFO L470 AbstractCegarLoop]: Abstraction has 26149 states and 32774 transitions. [2021-11-04 10:22:10,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:22:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 26149 states and 32774 transitions. [2021-11-04 10:22:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-04 10:22:10,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:22:10,603 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, 1, 1, 1] [2021-11-04 10:22:10,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:22:10,603 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:22:10,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:22:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash -827994012, now seen corresponding path program 1 times [2021-11-04 10:22:10,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:22:10,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510423050] [2021-11-04 10:22:10,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:22:10,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:22:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:22:10,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:22:10,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:22:10,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510423050] [2021-11-04 10:22:10,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510423050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:22:10,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:22:10,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:22:10,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098894647] [2021-11-04 10:22:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:22:10,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:22:10,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:22:10,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:22:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:22:10,693 INFO L87 Difference]: Start difference. First operand 26149 states and 32774 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:22:20,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:28,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:30,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:32,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:22:32,810 INFO L93 Difference]: Finished difference Result 64971 states and 81509 transitions. [2021-11-04 10:22:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:22:32,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-04 10:22:32,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:22:33,032 INFO L225 Difference]: With dead ends: 64971 [2021-11-04 10:22:33,032 INFO L226 Difference]: Without dead ends: 38953 [2021-11-04 10:22:33,067 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 [2021-11-04 10:22:33,068 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4707 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 14490 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19132.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4707 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.71ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21225.69ms IncrementalHoareTripleChecker+Time [2021-11-04 10:22:33,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4707 Valid, 0 Invalid, 14496 Unknown, 0 Unchecked, 21.71ms Time], IncrementalHoareTripleChecker [6 Valid, 14490 Invalid, 0 Unknown, 0 Unchecked, 21225.69ms Time] [2021-11-04 10:22:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38953 states. [2021-11-04 10:22:33,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38953 to 38888. [2021-11-04 10:22:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38888 states, 38844 states have (on average 1.2558181443723613) internal successors, (48781), 38887 states have internal predecessors, (48781), 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) [2021-11-04 10:22:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38888 states to 38888 states and 48781 transitions. [2021-11-04 10:22:33,738 INFO L78 Accepts]: Start accepts. Automaton has 38888 states and 48781 transitions. Word has length 71 [2021-11-04 10:22:33,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:22:33,740 INFO L470 AbstractCegarLoop]: Abstraction has 38888 states and 48781 transitions. [2021-11-04 10:22:33,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:22:33,740 INFO L276 IsEmpty]: Start isEmpty. Operand 38888 states and 48781 transitions. [2021-11-04 10:22:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-04 10:22:33,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:22:33,741 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, 1] [2021-11-04 10:22:33,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 10:22:33,742 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:22:33,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:22:33,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1803764864, now seen corresponding path program 1 times [2021-11-04 10:22:33,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:22:33,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066155769] [2021-11-04 10:22:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:22:33,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:22:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:22:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:22:33,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:22:33,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066155769] [2021-11-04 10:22:33,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066155769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:22:33,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:22:33,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:22:33,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400817734] [2021-11-04 10:22:33,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:22:33,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:22:33,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:22:33,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:22:33,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:22:33,872 INFO L87 Difference]: Start difference. First operand 38888 states and 48781 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-04 10:22:46,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:22:46,798 INFO L93 Difference]: Finished difference Result 38888 states and 48781 transitions. [2021-11-04 10:22:46,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:22:46,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 72 [2021-11-04 10:22:46,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:22:46,871 INFO L225 Difference]: With dead ends: 38888 [2021-11-04 10:22:46,871 INFO L226 Difference]: Without dead ends: 38882 [2021-11-04 10:22:46,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:22:46,891 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4877 mSDsluCounter, 4832 mSDsCounter, 0 mSdLazyCounter, 9832 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10899.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.54ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 9832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12160.54ms IncrementalHoareTripleChecker+Time [2021-11-04 10:22:46,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 0 Invalid, 9866 Unknown, 0 Unchecked, 22.54ms Time], IncrementalHoareTripleChecker [34 Valid, 9832 Invalid, 0 Unknown, 0 Unchecked, 12160.54ms Time] [2021-11-04 10:22:46,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38882 states. [2021-11-04 10:22:47,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38882 to 38882. [2021-11-04 10:22:47,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38882 states, 38841 states have (on average 1.2557606652763833) internal successors, (48775), 38881 states have internal predecessors, (48775), 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) [2021-11-04 10:22:47,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38882 states to 38882 states and 48775 transitions. [2021-11-04 10:22:47,621 INFO L78 Accepts]: Start accepts. Automaton has 38882 states and 48775 transitions. Word has length 72 [2021-11-04 10:22:47,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:22:47,621 INFO L470 AbstractCegarLoop]: Abstraction has 38882 states and 48775 transitions. [2021-11-04 10:22:47,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-04 10:22:47,622 INFO L276 IsEmpty]: Start isEmpty. Operand 38882 states and 48775 transitions. [2021-11-04 10:22:47,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-04 10:22:47,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:22:47,623 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, 1, 1, 1] [2021-11-04 10:22:47,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 10:22:47,623 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:22:47,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:22:47,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1748607325, now seen corresponding path program 1 times [2021-11-04 10:22:47,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:22:47,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367651627] [2021-11-04 10:22:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:22:47,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:22:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:22:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:22:47,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:22:47,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367651627] [2021-11-04 10:22:47,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367651627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:22:47,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:22:47,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:22:47,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740714650] [2021-11-04 10:22:47,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:22:47,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:22:47,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:22:47,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:22:47,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:22:47,805 INFO L87 Difference]: Start difference. First operand 38882 states and 48775 transitions. Second operand has 4 states, 4 states have (on average 16.25) 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) [2021-11-04 10:22:57,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:01,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:23:01,657 INFO L93 Difference]: Finished difference Result 38882 states and 48775 transitions. [2021-11-04 10:23:01,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:23:01,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) 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 74 [2021-11-04 10:23:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:23:01,728 INFO L225 Difference]: With dead ends: 38882 [2021-11-04 10:23:01,728 INFO L226 Difference]: Without dead ends: 38876 [2021-11-04 10:23:01,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:23:01,747 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4866 mSDsluCounter, 4829 mSDsCounter, 0 mSdLazyCounter, 9820 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11840.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.09ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13214.78ms IncrementalHoareTripleChecker+Time [2021-11-04 10:23:01,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4866 Valid, 0 Invalid, 9857 Unknown, 0 Unchecked, 23.09ms Time], IncrementalHoareTripleChecker [37 Valid, 9820 Invalid, 0 Unknown, 0 Unchecked, 13214.78ms Time] [2021-11-04 10:23:01,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38876 states. [2021-11-04 10:23:02,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38876 to 38876. [2021-11-04 10:23:02,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38876 states, 38838 states have (on average 1.255703177300582) internal successors, (48769), 38875 states have internal predecessors, (48769), 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) [2021-11-04 10:23:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38876 states to 38876 states and 48769 transitions. [2021-11-04 10:23:02,659 INFO L78 Accepts]: Start accepts. Automaton has 38876 states and 48769 transitions. Word has length 74 [2021-11-04 10:23:02,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:23:02,659 INFO L470 AbstractCegarLoop]: Abstraction has 38876 states and 48769 transitions. [2021-11-04 10:23:02,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) 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) [2021-11-04 10:23:02,659 INFO L276 IsEmpty]: Start isEmpty. Operand 38876 states and 48769 transitions. [2021-11-04 10:23:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-04 10:23:02,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:23:02,664 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, 1, 1, 1, 1, 1] [2021-11-04 10:23:02,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 10:23:02,665 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:23:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:23:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1079280314, now seen corresponding path program 1 times [2021-11-04 10:23:02,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:23:02,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417019339] [2021-11-04 10:23:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:23:02,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:23:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:23:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:23:02,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:23:02,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417019339] [2021-11-04 10:23:02,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417019339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:23:02,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:23:02,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:23:02,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200336773] [2021-11-04 10:23:02,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:23:02,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:23:02,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:23:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:23:02,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:23:02,800 INFO L87 Difference]: Start difference. First operand 38876 states and 48769 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-04 10:23:16,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:23:16,645 INFO L93 Difference]: Finished difference Result 38876 states and 48769 transitions. [2021-11-04 10:23:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:23:16,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 76 [2021-11-04 10:23:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:23:16,726 INFO L225 Difference]: With dead ends: 38876 [2021-11-04 10:23:16,727 INFO L226 Difference]: Without dead ends: 38870 [2021-11-04 10:23:16,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:23:16,747 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4858 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 9808 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11521.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4858 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.16ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12879.80ms IncrementalHoareTripleChecker+Time [2021-11-04 10:23:16,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4858 Valid, 0 Invalid, 9845 Unknown, 0 Unchecked, 24.16ms Time], IncrementalHoareTripleChecker [37 Valid, 9808 Invalid, 0 Unknown, 0 Unchecked, 12879.80ms Time] [2021-11-04 10:23:16,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38870 states. [2021-11-04 10:23:17,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38870 to 38870. [2021-11-04 10:23:17,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38870 states, 38835 states have (on average 1.2556456804428995) internal successors, (48763), 38869 states have internal predecessors, (48763), 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) [2021-11-04 10:23:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38870 states to 38870 states and 48763 transitions. [2021-11-04 10:23:17,698 INFO L78 Accepts]: Start accepts. Automaton has 38870 states and 48763 transitions. Word has length 76 [2021-11-04 10:23:17,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:23:17,698 INFO L470 AbstractCegarLoop]: Abstraction has 38870 states and 48763 transitions. [2021-11-04 10:23:17,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-04 10:23:17,699 INFO L276 IsEmpty]: Start isEmpty. Operand 38870 states and 48763 transitions. [2021-11-04 10:23:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-04 10:23:17,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:23:17,700 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:23:17,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 10:23:17,703 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:23:17,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:23:17,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2101116823, now seen corresponding path program 1 times [2021-11-04 10:23:17,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:23:17,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101673761] [2021-11-04 10:23:17,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:23:17,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:23:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:23:17,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:23:17,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:23:17,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101673761] [2021-11-04 10:23:17,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101673761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:23:17,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:23:17,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:23:17,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335517226] [2021-11-04 10:23:17,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:23:17,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:23:17,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:23:17,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:23:17,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:23:17,871 INFO L87 Difference]: Start difference. First operand 38870 states and 48763 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:23:26,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:32,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:23:32,337 INFO L93 Difference]: Finished difference Result 38870 states and 48763 transitions. [2021-11-04 10:23:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:23:32,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-04 10:23:32,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:23:32,403 INFO L225 Difference]: With dead ends: 38870 [2021-11-04 10:23:32,403 INFO L226 Difference]: Without dead ends: 38864 [2021-11-04 10:23:32,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.27ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:23:32,422 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4850 mSDsluCounter, 4823 mSDsCounter, 0 mSdLazyCounter, 9796 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12354.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4850 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.62ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13675.34ms IncrementalHoareTripleChecker+Time [2021-11-04 10:23:32,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4850 Valid, 0 Invalid, 9833 Unknown, 0 Unchecked, 19.62ms Time], IncrementalHoareTripleChecker [37 Valid, 9796 Invalid, 0 Unknown, 0 Unchecked, 13675.34ms Time] [2021-11-04 10:23:32,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38864 states. [2021-11-04 10:23:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38864 to 38864. [2021-11-04 10:23:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38864 states, 38832 states have (on average 1.2555881747012774) internal successors, (48757), 38863 states have internal predecessors, (48757), 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) [2021-11-04 10:23:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38864 states to 38864 states and 48757 transitions. [2021-11-04 10:23:33,389 INFO L78 Accepts]: Start accepts. Automaton has 38864 states and 48757 transitions. Word has length 78 [2021-11-04 10:23:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:23:33,390 INFO L470 AbstractCegarLoop]: Abstraction has 38864 states and 48757 transitions. [2021-11-04 10:23:33,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:23:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 38864 states and 48757 transitions. [2021-11-04 10:23:33,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-04 10:23:33,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:23:33,392 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:23:33,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 10:23:33,392 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:23:33,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:23:33,393 INFO L85 PathProgramCache]: Analyzing trace with hash -538490868, now seen corresponding path program 1 times [2021-11-04 10:23:33,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:23:33,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227984164] [2021-11-04 10:23:33,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:23:33,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:23:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:23:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:23:33,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:23:33,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227984164] [2021-11-04 10:23:33,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227984164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:23:33,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:23:33,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:23:33,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124529597] [2021-11-04 10:23:33,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:23:33,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:23:33,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:23:33,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:23:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:23:33,518 INFO L87 Difference]: Start difference. First operand 38864 states and 48757 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:23:44,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:47,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:23:47,151 INFO L93 Difference]: Finished difference Result 38864 states and 48757 transitions. [2021-11-04 10:23:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:23:47,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-04 10:23:47,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:23:47,219 INFO L225 Difference]: With dead ends: 38864 [2021-11-04 10:23:47,219 INFO L226 Difference]: Without dead ends: 38858 [2021-11-04 10:23:47,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.04ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:23:47,234 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4842 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 9784 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11388.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.51ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12695.36ms IncrementalHoareTripleChecker+Time [2021-11-04 10:23:47,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4842 Valid, 0 Invalid, 9821 Unknown, 0 Unchecked, 16.51ms Time], IncrementalHoareTripleChecker [37 Valid, 9784 Invalid, 0 Unknown, 0 Unchecked, 12695.36ms Time] [2021-11-04 10:23:47,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38858 states. [2021-11-04 10:23:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38858 to 38858. [2021-11-04 10:23:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38858 states, 38829 states have (on average 1.2555306600736562) internal successors, (48751), 38857 states have internal predecessors, (48751), 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) [2021-11-04 10:23:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38858 states to 38858 states and 48751 transitions. [2021-11-04 10:23:48,206 INFO L78 Accepts]: Start accepts. Automaton has 38858 states and 48751 transitions. Word has length 80 [2021-11-04 10:23:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:23:48,206 INFO L470 AbstractCegarLoop]: Abstraction has 38858 states and 48751 transitions. [2021-11-04 10:23:48,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:23:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 38858 states and 48751 transitions. [2021-11-04 10:23:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-04 10:23:48,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:23:48,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:23:48,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 10:23:48,209 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:23:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:23:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2093501393, now seen corresponding path program 1 times [2021-11-04 10:23:48,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:23:48,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768600798] [2021-11-04 10:23:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:23:48,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:23:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:23:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:23:48,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:23:48,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768600798] [2021-11-04 10:23:48,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768600798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:23:48,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:23:48,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:23:48,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778694656] [2021-11-04 10:23:48,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:23:48,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:23:48,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:23:48,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:23:48,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:23:48,323 INFO L87 Difference]: Start difference. First operand 38858 states and 48751 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:23:55,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:24:02,324 INFO L93 Difference]: Finished difference Result 38858 states and 48751 transitions. [2021-11-04 10:24:02,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:24:02,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-04 10:24:02,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:24:02,395 INFO L225 Difference]: With dead ends: 38858 [2021-11-04 10:24:02,395 INFO L226 Difference]: Without dead ends: 38852 [2021-11-04 10:24:02,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.52ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:24:02,431 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4834 mSDsluCounter, 4817 mSDsCounter, 0 mSdLazyCounter, 9772 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11856.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.31ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13055.23ms IncrementalHoareTripleChecker+Time [2021-11-04 10:24:02,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4834 Valid, 0 Invalid, 9809 Unknown, 0 Unchecked, 16.31ms Time], IncrementalHoareTripleChecker [37 Valid, 9772 Invalid, 0 Unknown, 0 Unchecked, 13055.23ms Time] [2021-11-04 10:24:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38852 states. [2021-11-04 10:24:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38852 to 38852. [2021-11-04 10:24:03,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38852 states, 38826 states have (on average 1.2554731365579765) internal successors, (48745), 38851 states have internal predecessors, (48745), 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) [2021-11-04 10:24:03,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38852 states to 38852 states and 48745 transitions. [2021-11-04 10:24:03,565 INFO L78 Accepts]: Start accepts. Automaton has 38852 states and 48745 transitions. Word has length 82 [2021-11-04 10:24:03,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:24:03,566 INFO L470 AbstractCegarLoop]: Abstraction has 38852 states and 48745 transitions. [2021-11-04 10:24:03,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:24:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 38852 states and 48745 transitions. [2021-11-04 10:24:03,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-04 10:24:03,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:24:03,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:24:03,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-04 10:24:03,569 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:24:03,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:24:03,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1809996590, now seen corresponding path program 1 times [2021-11-04 10:24:03,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:24:03,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262596079] [2021-11-04 10:24:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:24:03,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:24:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:24:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:24:03,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:24:03,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262596079] [2021-11-04 10:24:03,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262596079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:24:03,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:24:03,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:24:03,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196135906] [2021-11-04 10:24:03,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:24:03,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:24:03,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:24:03,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:24:03,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:24:03,676 INFO L87 Difference]: Start difference. First operand 38852 states and 48745 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:24:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:24:16,879 INFO L93 Difference]: Finished difference Result 38852 states and 48745 transitions. [2021-11-04 10:24:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:24:16,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-04 10:24:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:24:16,939 INFO L225 Difference]: With dead ends: 38852 [2021-11-04 10:24:16,939 INFO L226 Difference]: Without dead ends: 38846 [2021-11-04 10:24:16,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:24:16,951 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3771 mSDsluCounter, 5845 mSDsCounter, 0 mSdLazyCounter, 10811 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10803.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3771 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.27ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 10811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12169.47ms IncrementalHoareTripleChecker+Time [2021-11-04 10:24:16,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3771 Valid, 0 Invalid, 10852 Unknown, 0 Unchecked, 18.27ms Time], IncrementalHoareTripleChecker [41 Valid, 10811 Invalid, 0 Unknown, 0 Unchecked, 12169.47ms Time] [2021-11-04 10:24:16,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38846 states. [2021-11-04 10:24:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38846 to 38846. [2021-11-04 10:24:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38846 states, 38823 states have (on average 1.2554156041521778) internal successors, (48739), 38845 states have internal predecessors, (48739), 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) [2021-11-04 10:24:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38846 states to 38846 states and 48739 transitions. [2021-11-04 10:24:17,986 INFO L78 Accepts]: Start accepts. Automaton has 38846 states and 48739 transitions. Word has length 84 [2021-11-04 10:24:17,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:24:17,986 INFO L470 AbstractCegarLoop]: Abstraction has 38846 states and 48739 transitions. [2021-11-04 10:24:17,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:24:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand 38846 states and 48739 transitions. [2021-11-04 10:24:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-04 10:24:17,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:24:17,989 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:24:17,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-04 10:24:17,990 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:24:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:24:17,991 INFO L85 PathProgramCache]: Analyzing trace with hash 55179765, now seen corresponding path program 1 times [2021-11-04 10:24:17,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:24:17,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758017644] [2021-11-04 10:24:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:24:17,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:24:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:24:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:24:18,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:24:18,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758017644] [2021-11-04 10:24:18,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758017644] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:24:18,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:24:18,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:24:18,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875609435] [2021-11-04 10:24:18,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:24:18,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:24:18,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:24:18,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:24:18,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:24:18,089 INFO L87 Difference]: Start difference. First operand 38846 states and 48739 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:24:30,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:24:30,644 INFO L93 Difference]: Finished difference Result 38846 states and 48739 transitions. [2021-11-04 10:24:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:24:30,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-04 10:24:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:24:30,703 INFO L225 Difference]: With dead ends: 38846 [2021-11-04 10:24:30,703 INFO L226 Difference]: Without dead ends: 38840 [2021-11-04 10:24:30,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.97ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:24:30,716 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4818 mSDsluCounter, 4811 mSDsCounter, 0 mSdLazyCounter, 9748 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10226.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4818 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.88ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11482.78ms IncrementalHoareTripleChecker+Time [2021-11-04 10:24:30,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4818 Valid, 0 Invalid, 9785 Unknown, 0 Unchecked, 17.88ms Time], IncrementalHoareTripleChecker [37 Valid, 9748 Invalid, 0 Unknown, 0 Unchecked, 11482.78ms Time] [2021-11-04 10:24:30,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38840 states. [2021-11-04 10:24:31,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38840 to 38840. [2021-11-04 10:24:31,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38840 states, 38820 states have (on average 1.255358062854199) internal successors, (48733), 38839 states have internal predecessors, (48733), 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) [2021-11-04 10:24:31,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38840 states to 38840 states and 48733 transitions. [2021-11-04 10:24:31,912 INFO L78 Accepts]: Start accepts. Automaton has 38840 states and 48733 transitions. Word has length 86 [2021-11-04 10:24:31,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:24:31,912 INFO L470 AbstractCegarLoop]: Abstraction has 38840 states and 48733 transitions. [2021-11-04 10:24:31,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:24:31,913 INFO L276 IsEmpty]: Start isEmpty. Operand 38840 states and 48733 transitions. [2021-11-04 10:24:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-04 10:24:31,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:24:31,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:24:31,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-04 10:24:31,916 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:24:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:24:31,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1488294808, now seen corresponding path program 1 times [2021-11-04 10:24:31,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:24:31,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541534336] [2021-11-04 10:24:31,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:24:31,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:24:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:24:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:24:32,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:24:32,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541534336] [2021-11-04 10:24:32,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541534336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:24:32,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:24:32,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:24:32,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481708085] [2021-11-04 10:24:32,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:24:32,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:24:32,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:24:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:24:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:24:32,018 INFO L87 Difference]: Start difference. First operand 38840 states and 48733 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:24:41,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:46,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:24:46,489 INFO L93 Difference]: Finished difference Result 38840 states and 48733 transitions. [2021-11-04 10:24:46,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:24:46,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-04 10:24:46,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:24:46,556 INFO L225 Difference]: With dead ends: 38840 [2021-11-04 10:24:46,556 INFO L226 Difference]: Without dead ends: 38834 [2021-11-04 10:24:46,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:24:46,571 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4810 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 9736 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12079.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4810 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.57ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13391.01ms IncrementalHoareTripleChecker+Time [2021-11-04 10:24:46,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4810 Valid, 0 Invalid, 9773 Unknown, 0 Unchecked, 16.57ms Time], IncrementalHoareTripleChecker [37 Valid, 9736 Invalid, 0 Unknown, 0 Unchecked, 13391.01ms Time] [2021-11-04 10:24:46,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38834 states. [2021-11-04 10:24:47,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38834 to 38834. [2021-11-04 10:24:47,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38834 states, 38817 states have (on average 1.255300512661978) internal successors, (48727), 38833 states have internal predecessors, (48727), 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) [2021-11-04 10:24:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38834 states to 38834 states and 48727 transitions. [2021-11-04 10:24:47,748 INFO L78 Accepts]: Start accepts. Automaton has 38834 states and 48727 transitions. Word has length 88 [2021-11-04 10:24:47,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:24:47,748 INFO L470 AbstractCegarLoop]: Abstraction has 38834 states and 48727 transitions. [2021-11-04 10:24:47,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:24:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 38834 states and 48727 transitions. [2021-11-04 10:24:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-04 10:24:47,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:24:47,751 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:24:47,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-04 10:24:47,751 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:24:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:24:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2057427073, now seen corresponding path program 1 times [2021-11-04 10:24:47,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:24:47,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941799409] [2021-11-04 10:24:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:24:47,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:24:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:24:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:24:47,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:24:47,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941799409] [2021-11-04 10:24:47,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941799409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:24:47,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:24:47,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:24:47,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683095436] [2021-11-04 10:24:47,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:24:47,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:24:47,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:24:47,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:24:47,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:24:47,837 INFO L87 Difference]: Start difference. First operand 38834 states and 48727 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 10:24:59,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:02,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:25:07,256 INFO L93 Difference]: Finished difference Result 86619 states and 109040 transitions. [2021-11-04 10:25:07,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:25:07,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-04 10:25:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:25:07,349 INFO L225 Difference]: With dead ends: 86619 [2021-11-04 10:25:07,350 INFO L226 Difference]: Without dead ends: 47916 [2021-11-04 10:25:07,541 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 [2021-11-04 10:25:07,542 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2044 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 11807 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15783.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.54ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 11807 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17540.05ms IncrementalHoareTripleChecker+Time [2021-11-04 10:25:07,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 0 Invalid, 11823 Unknown, 0 Unchecked, 17.54ms Time], IncrementalHoareTripleChecker [15 Valid, 11807 Invalid, 1 Unknown, 0 Unchecked, 17540.05ms Time] [2021-11-04 10:25:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47916 states. [2021-11-04 10:25:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47916 to 47837. [2021-11-04 10:25:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47837 states, 47820 states have (on average 1.25913843580092) internal successors, (60212), 47836 states have internal predecessors, (60212), 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) [2021-11-04 10:25:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47837 states to 47837 states and 60212 transitions. [2021-11-04 10:25:08,994 INFO L78 Accepts]: Start accepts. Automaton has 47837 states and 60212 transitions. Word has length 89 [2021-11-04 10:25:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:25:08,994 INFO L470 AbstractCegarLoop]: Abstraction has 47837 states and 60212 transitions. [2021-11-04 10:25:08,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 10:25:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 47837 states and 60212 transitions. [2021-11-04 10:25:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-04 10:25:08,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:25:08,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:25:08,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-04 10:25:08,996 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:25:08,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:25:08,997 INFO L85 PathProgramCache]: Analyzing trace with hash 27349435, now seen corresponding path program 1 times [2021-11-04 10:25:08,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:25:08,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934752403] [2021-11-04 10:25:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:25:08,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:25:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:25:09,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:25:09,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:25:09,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934752403] [2021-11-04 10:25:09,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934752403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:25:09,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:25:09,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:25:09,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62510828] [2021-11-04 10:25:09,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:25:09,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:25:09,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:25:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:25:09,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:25:09,105 INFO L87 Difference]: Start difference. First operand 47837 states and 60212 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:25:23,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:25:23,429 INFO L93 Difference]: Finished difference Result 47837 states and 60212 transitions. [2021-11-04 10:25:23,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:25:23,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-04 10:25:23,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:25:23,513 INFO L225 Difference]: With dead ends: 47837 [2021-11-04 10:25:23,513 INFO L226 Difference]: Without dead ends: 47831 [2021-11-04 10:25:23,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.13ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:25:23,530 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4802 mSDsluCounter, 4805 mSDsCounter, 0 mSdLazyCounter, 9724 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11327.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.45ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12678.09ms IncrementalHoareTripleChecker+Time [2021-11-04 10:25:23,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 0 Invalid, 9761 Unknown, 0 Unchecked, 20.45ms Time], IncrementalHoareTripleChecker [37 Valid, 9724 Invalid, 0 Unknown, 0 Unchecked, 12678.09ms Time] [2021-11-04 10:25:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47831 states. [2021-11-04 10:25:24,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47831 to 47831. [2021-11-04 10:25:24,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47831 states, 47817 states have (on average 1.2590919547441286) internal successors, (60206), 47830 states have internal predecessors, (60206), 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) [2021-11-04 10:25:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47831 states to 47831 states and 60206 transitions. [2021-11-04 10:25:25,010 INFO L78 Accepts]: Start accepts. Automaton has 47831 states and 60206 transitions. Word has length 90 [2021-11-04 10:25:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:25:25,011 INFO L470 AbstractCegarLoop]: Abstraction has 47831 states and 60206 transitions. [2021-11-04 10:25:25,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:25:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 47831 states and 60206 transitions. [2021-11-04 10:25:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-04 10:25:25,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:25:25,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:25:25,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-04 10:25:25,013 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:25:25,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:25:25,013 INFO L85 PathProgramCache]: Analyzing trace with hash 513152094, now seen corresponding path program 1 times [2021-11-04 10:25:25,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:25:25,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951219319] [2021-11-04 10:25:25,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:25:25,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:25:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:25:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:25:25,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:25:25,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951219319] [2021-11-04 10:25:25,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951219319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:25:25,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:25:25,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:25:25,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931179672] [2021-11-04 10:25:25,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:25:25,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:25:25,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:25:25,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:25:25,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:25:25,102 INFO L87 Difference]: Start difference. First operand 47831 states and 60206 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:25:32,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:36,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:25:40,418 INFO L93 Difference]: Finished difference Result 47831 states and 60206 transitions. [2021-11-04 10:25:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:25:40,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-04 10:25:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:25:40,509 INFO L225 Difference]: With dead ends: 47831 [2021-11-04 10:25:40,510 INFO L226 Difference]: Without dead ends: 47825 [2021-11-04 10:25:40,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:25:40,532 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4794 mSDsluCounter, 4802 mSDsCounter, 0 mSdLazyCounter, 9711 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12486.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4794 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.68ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9711 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13944.27ms IncrementalHoareTripleChecker+Time [2021-11-04 10:25:40,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4794 Valid, 0 Invalid, 9749 Unknown, 0 Unchecked, 14.68ms Time], IncrementalHoareTripleChecker [37 Valid, 9711 Invalid, 1 Unknown, 0 Unchecked, 13944.27ms Time] [2021-11-04 10:25:40,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47825 states. [2021-11-04 10:25:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47825 to 47825. [2021-11-04 10:25:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47825 states, 47814 states have (on average 1.2590454678546033) internal successors, (60200), 47824 states have internal predecessors, (60200), 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) [2021-11-04 10:25:42,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47825 states to 47825 states and 60200 transitions. [2021-11-04 10:25:42,387 INFO L78 Accepts]: Start accepts. Automaton has 47825 states and 60200 transitions. Word has length 92 [2021-11-04 10:25:42,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:25:42,388 INFO L470 AbstractCegarLoop]: Abstraction has 47825 states and 60200 transitions. [2021-11-04 10:25:42,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:25:42,388 INFO L276 IsEmpty]: Start isEmpty. Operand 47825 states and 60200 transitions. [2021-11-04 10:25:42,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-04 10:25:42,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:25:42,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:25:42,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-04 10:25:42,389 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:25:42,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:25:42,390 INFO L85 PathProgramCache]: Analyzing trace with hash -781927551, now seen corresponding path program 1 times [2021-11-04 10:25:42,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:25:42,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132457782] [2021-11-04 10:25:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:25:42,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:25:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:25:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:25:42,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:25:42,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132457782] [2021-11-04 10:25:42,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132457782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:25:42,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:25:42,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:25:42,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865911093] [2021-11-04 10:25:42,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:25:42,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:25:42,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:25:42,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:25:42,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:25:42,495 INFO L87 Difference]: Start difference. First operand 47825 states and 60200 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-04 10:25:55,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:57,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:26:00,429 INFO L93 Difference]: Finished difference Result 47825 states and 60200 transitions. [2021-11-04 10:26:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:26:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 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 94 [2021-11-04 10:26:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:26:00,520 INFO L225 Difference]: With dead ends: 47825 [2021-11-04 10:26:00,520 INFO L226 Difference]: Without dead ends: 47660 [2021-11-04 10:26:00,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:26:00,539 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4783 mSDsluCounter, 4799 mSDsCounter, 0 mSdLazyCounter, 9699 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14683.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4783 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.38ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 9699 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16175.21ms IncrementalHoareTripleChecker+Time [2021-11-04 10:26:00,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4783 Valid, 0 Invalid, 9740 Unknown, 0 Unchecked, 20.38ms Time], IncrementalHoareTripleChecker [40 Valid, 9699 Invalid, 1 Unknown, 0 Unchecked, 16175.21ms Time] [2021-11-04 10:26:00,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47660 states. [2021-11-04 10:26:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47660 to 47660. [2021-11-04 10:26:02,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47660 states, 47652 states have (on average 1.2585201040879712) internal successors, (59971), 47659 states have internal predecessors, (59971), 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) [2021-11-04 10:26:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47660 states to 47660 states and 59971 transitions. [2021-11-04 10:26:02,176 INFO L78 Accepts]: Start accepts. Automaton has 47660 states and 59971 transitions. Word has length 94 [2021-11-04 10:26:02,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:26:02,176 INFO L470 AbstractCegarLoop]: Abstraction has 47660 states and 59971 transitions. [2021-11-04 10:26:02,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-04 10:26:02,176 INFO L276 IsEmpty]: Start isEmpty. Operand 47660 states and 59971 transitions. [2021-11-04 10:26:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-04 10:26:02,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:26:02,179 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:26:02,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-04 10:26:02,179 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:26:02,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:26:02,180 INFO L85 PathProgramCache]: Analyzing trace with hash -386111282, now seen corresponding path program 1 times [2021-11-04 10:26:02,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:26:02,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295846995] [2021-11-04 10:26:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:26:02,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:26:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:26:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 10:26:02,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:26:02,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295846995] [2021-11-04 10:26:02,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295846995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:26:02,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:26:02,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:26:02,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103773390] [2021-11-04 10:26:02,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:26:02,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:26:02,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:26:02,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:26:02,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:26:02,264 INFO L87 Difference]: Start difference. First operand 47660 states and 59971 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-04 10:26:09,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:16,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:26:22,328 INFO L93 Difference]: Finished difference Result 104172 states and 131365 transitions. [2021-11-04 10:26:22,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:26:22,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 126 [2021-11-04 10:26:22,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:26:22,464 INFO L225 Difference]: With dead ends: 104172 [2021-11-04 10:26:22,464 INFO L226 Difference]: Without dead ends: 56585 [2021-11-04 10:26:22,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:26:22,558 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1994 mSDsluCounter, 4723 mSDsCounter, 0 mSdLazyCounter, 11558 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16008.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.99ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 11558 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17694.75ms IncrementalHoareTripleChecker+Time [2021-11-04 10:26:22,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1994 Valid, 0 Invalid, 11572 Unknown, 0 Unchecked, 17.99ms Time], IncrementalHoareTripleChecker [13 Valid, 11558 Invalid, 1 Unknown, 0 Unchecked, 17694.75ms Time] [2021-11-04 10:26:22,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56585 states. [2021-11-04 10:26:24,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56585 to 56557. [2021-11-04 10:26:24,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56557 states, 56549 states have (on average 1.2611009920599834) internal successors, (71314), 56556 states have internal predecessors, (71314), 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) [2021-11-04 10:26:24,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56557 states to 56557 states and 71314 transitions. [2021-11-04 10:26:24,663 INFO L78 Accepts]: Start accepts. Automaton has 56557 states and 71314 transitions. Word has length 126 [2021-11-04 10:26:24,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:26:24,663 INFO L470 AbstractCegarLoop]: Abstraction has 56557 states and 71314 transitions. [2021-11-04 10:26:24,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-04 10:26:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 56557 states and 71314 transitions. [2021-11-04 10:26:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-04 10:26:24,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:26:24,666 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:26:24,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-04 10:26:24,667 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:26:24,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:26:24,669 INFO L85 PathProgramCache]: Analyzing trace with hash -363479028, now seen corresponding path program 1 times [2021-11-04 10:26:24,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:26:24,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738075770] [2021-11-04 10:26:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:26:24,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:26:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:26:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 10:26:24,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:26:24,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738075770] [2021-11-04 10:26:24,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738075770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:26:24,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:26:24,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:26:24,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858757134] [2021-11-04 10:26:24,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:26:24,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:26:24,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:26:24,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:26:24,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:26:24,887 INFO L87 Difference]: Start difference. First operand 56557 states and 71314 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-04 10:26:30,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:39,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:41,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:46,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:26:46,637 INFO L93 Difference]: Finished difference Result 125806 states and 158899 transitions. [2021-11-04 10:26:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:26:46,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 126 [2021-11-04 10:26:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:26:46,781 INFO L225 Difference]: With dead ends: 125806 [2021-11-04 10:26:46,781 INFO L226 Difference]: Without dead ends: 69380 [2021-11-04 10:26:46,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:26:46,857 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2644 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 11364 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17225.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.71ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11364 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19034.92ms IncrementalHoareTripleChecker+Time [2021-11-04 10:26:46,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2644 Valid, 0 Invalid, 11382 Unknown, 0 Unchecked, 19.71ms Time], IncrementalHoareTripleChecker [16 Valid, 11364 Invalid, 2 Unknown, 0 Unchecked, 19034.92ms Time] [2021-11-04 10:26:46,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69380 states. [2021-11-04 10:26:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69380 to 65548. [2021-11-04 10:26:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65548 states, 65540 states have (on average 1.2629081476960635) internal successors, (82771), 65547 states have internal predecessors, (82771), 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) [2021-11-04 10:26:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65548 states to 65548 states and 82771 transitions. [2021-11-04 10:26:49,305 INFO L78 Accepts]: Start accepts. Automaton has 65548 states and 82771 transitions. Word has length 126 [2021-11-04 10:26:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:26:49,305 INFO L470 AbstractCegarLoop]: Abstraction has 65548 states and 82771 transitions. [2021-11-04 10:26:49,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-04 10:26:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 65548 states and 82771 transitions. [2021-11-04 10:26:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-04 10:26:49,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:26:49,310 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:26:49,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-04 10:26:49,310 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:26:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:26:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 789530382, now seen corresponding path program 1 times [2021-11-04 10:26:49,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:26:49,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398082333] [2021-11-04 10:26:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:26:49,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:26:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:26:49,471 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-04 10:26:49,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:26:49,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398082333] [2021-11-04 10:26:49,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398082333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:26:49,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:26:49,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:26:49,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474739707] [2021-11-04 10:26:49,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:26:49,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:26:49,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:26:49,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:26:49,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:26:49,474 INFO L87 Difference]: Start difference. First operand 65548 states and 82771 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-11-04 10:26:54,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:00,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:06,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:09,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:27:09,844 INFO L93 Difference]: Finished difference Result 139960 states and 176989 transitions. [2021-11-04 10:27:09,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:27:09,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 161 [2021-11-04 10:27:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:27:10,006 INFO L225 Difference]: With dead ends: 139960 [2021-11-04 10:27:10,006 INFO L226 Difference]: Without dead ends: 74543 [2021-11-04 10:27:10,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:27:10,080 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1997 mSDsluCounter, 4722 mSDsCounter, 0 mSdLazyCounter, 10636 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15741.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.28ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 10636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17347.28ms IncrementalHoareTripleChecker+Time [2021-11-04 10:27:10,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1997 Valid, 0 Invalid, 10648 Unknown, 0 Unchecked, 19.28ms Time], IncrementalHoareTripleChecker [12 Valid, 10636 Invalid, 0 Unknown, 0 Unchecked, 17347.28ms Time] [2021-11-04 10:27:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74543 states. [2021-11-04 10:27:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74543 to 74515. [2021-11-04 10:27:12,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74515 states, 74507 states have (on average 1.264364422134833) internal successors, (94204), 74514 states have internal predecessors, (94204), 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) [2021-11-04 10:27:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74515 states to 74515 states and 94204 transitions. [2021-11-04 10:27:12,966 INFO L78 Accepts]: Start accepts. Automaton has 74515 states and 94204 transitions. Word has length 161 [2021-11-04 10:27:12,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:27:12,967 INFO L470 AbstractCegarLoop]: Abstraction has 74515 states and 94204 transitions. [2021-11-04 10:27:12,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-11-04 10:27:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 74515 states and 94204 transitions. [2021-11-04 10:27:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-04 10:27:12,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:27:12,971 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:27:12,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-04 10:27:12,971 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:27:12,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:27:12,972 INFO L85 PathProgramCache]: Analyzing trace with hash 812162636, now seen corresponding path program 1 times [2021-11-04 10:27:12,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:27:12,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269006516] [2021-11-04 10:27:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:27:12,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:27:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:27:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-04 10:27:13,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:27:13,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269006516] [2021-11-04 10:27:13,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269006516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:27:13,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:27:13,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:27:13,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811485521] [2021-11-04 10:27:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:27:13,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:27:13,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:27:13,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:27:13,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:27:13,063 INFO L87 Difference]: Start difference. First operand 74515 states and 94204 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-11-04 10:27:18,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:22,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:34,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:27:34,874 INFO L93 Difference]: Finished difference Result 157906 states and 199879 transitions. [2021-11-04 10:27:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:27:34,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 161 [2021-11-04 10:27:34,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:27:35,074 INFO L225 Difference]: With dead ends: 157906 [2021-11-04 10:27:35,074 INFO L226 Difference]: Without dead ends: 83522 [2021-11-04 10:27:35,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:27:35,290 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2006 mSDsluCounter, 4713 mSDsCounter, 0 mSdLazyCounter, 11551 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16946.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.69ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 11551 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18617.45ms IncrementalHoareTripleChecker+Time [2021-11-04 10:27:35,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2006 Valid, 0 Invalid, 11566 Unknown, 0 Unchecked, 21.69ms Time], IncrementalHoareTripleChecker [13 Valid, 11551 Invalid, 2 Unknown, 0 Unchecked, 18617.45ms Time] [2021-11-04 10:27:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83522 states. [2021-11-04 10:27:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83522 to 83494. [2021-11-04 10:27:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83494 states, 83486 states have (on average 1.2654696595836428) internal successors, (105649), 83493 states have internal predecessors, (105649), 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) [2021-11-04 10:27:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83494 states to 83494 states and 105649 transitions. [2021-11-04 10:27:38,569 INFO L78 Accepts]: Start accepts. Automaton has 83494 states and 105649 transitions. Word has length 161 [2021-11-04 10:27:38,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:27:38,570 INFO L470 AbstractCegarLoop]: Abstraction has 83494 states and 105649 transitions. [2021-11-04 10:27:38,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-11-04 10:27:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 83494 states and 105649 transitions. [2021-11-04 10:27:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-04 10:27:38,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:27:38,574 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:27:38,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-04 10:27:38,575 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:27:38,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:27:38,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1296329250, now seen corresponding path program 1 times [2021-11-04 10:27:38,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:27:38,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657447696] [2021-11-04 10:27:38,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:27:38,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:27:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:27:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-04 10:27:38,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:27:38,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657447696] [2021-11-04 10:27:38,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657447696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:27:38,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:27:38,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:27:38,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569297199] [2021-11-04 10:27:38,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:27:38,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:27:38,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:27:38,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:27:38,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:27:38,748 INFO L87 Difference]: Start difference. First operand 83494 states and 105649 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-04 10:27:46,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:53,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:55,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:12,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:28:12,835 INFO L93 Difference]: Finished difference Result 181100 states and 228487 transitions. [2021-11-04 10:28:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:28:12,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 188 [2021-11-04 10:28:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:28:13,448 INFO L225 Difference]: With dead ends: 181100 [2021-11-04 10:28:13,449 INFO L226 Difference]: Without dead ends: 181092 [2021-11-04 10:28:13,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:28:13,529 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 8062 mSDsluCounter, 8347 mSDsCounter, 0 mSdLazyCounter, 16653 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25522.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8062 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.76ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 16653 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28180.56ms IncrementalHoareTripleChecker+Time [2021-11-04 10:28:13,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8062 Valid, 0 Invalid, 16669 Unknown, 0 Unchecked, 50.76ms Time], IncrementalHoareTripleChecker [14 Valid, 16653 Invalid, 2 Unknown, 0 Unchecked, 28180.56ms Time] [2021-11-04 10:28:13,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181092 states. [2021-11-04 10:28:18,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181092 to 131591. [2021-11-04 10:28:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131591 states, 131583 states have (on average 1.2635294832919146) internal successors, (166259), 131590 states have internal predecessors, (166259), 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) [2021-11-04 10:28:19,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131591 states to 131591 states and 166259 transitions. [2021-11-04 10:28:19,266 INFO L78 Accepts]: Start accepts. Automaton has 131591 states and 166259 transitions. Word has length 188 [2021-11-04 10:28:19,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:28:19,267 INFO L470 AbstractCegarLoop]: Abstraction has 131591 states and 166259 transitions. [2021-11-04 10:28:19,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-04 10:28:19,267 INFO L276 IsEmpty]: Start isEmpty. Operand 131591 states and 166259 transitions. [2021-11-04 10:28:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-04 10:28:19,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:28:19,277 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:28:19,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-04 10:28:19,278 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-04 10:28:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:28:19,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1388251505, now seen corresponding path program 1 times [2021-11-04 10:28:19,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:28:19,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890257696] [2021-11-04 10:28:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:28:19,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:28:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:28:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-04 10:28:19,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:28:19,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890257696] [2021-11-04 10:28:19,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890257696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:28:19,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:28:19,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 10:28:19,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400151960] [2021-11-04 10:28:19,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:28:19,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:28:19,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:28:19,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:28:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:28:19,386 INFO L87 Difference]: Start difference. First operand 131591 states and 166259 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2021-11-04 10:28:21,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:25,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:41,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:55,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:57,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:29:05,697 INFO L93 Difference]: Finished difference Result 406051 states and 513447 transitions. [2021-11-04 10:29:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:29:05,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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 220 [2021-11-04 10:29:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:29:06,799 INFO L225 Difference]: With dead ends: 406051 [2021-11-04 10:29:06,800 INFO L226 Difference]: Without dead ends: 274591 [2021-11-04 10:29:07,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:29:07,303 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 8649 mSDsluCounter, 13056 mSDsCounter, 0 mSdLazyCounter, 23038 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31806.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8649 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.90ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23038 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35263.19ms IncrementalHoareTripleChecker+Time [2021-11-04 10:29:07,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8649 Valid, 0 Invalid, 23047 Unknown, 0 Unchecked, 49.90ms Time], IncrementalHoareTripleChecker [7 Valid, 23038 Invalid, 2 Unknown, 0 Unchecked, 35263.19ms Time] [2021-11-04 10:29:07,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274591 states.