./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-alloc-spinlock_drivers-net-usb-kaweth.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 104510927d9409ade9caf80490257750edc55f0d04f472d0e2cf5426e55ff4e4 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 23:34:14,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:34:14,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:34:14,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:34:14,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:34:14,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:34:14,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:34:14,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:34:14,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:34:14,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:34:14,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:34:14,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:34:14,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:34:14,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:34:14,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:34:14,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:34:14,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:34:14,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:34:14,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:34:14,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:34:14,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:34:14,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:34:14,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:34:14,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:34:14,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:34:14,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:34:14,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:34:14,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:34:14,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:34:14,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:34:14,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:34:14,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:34:14,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:34:14,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:34:14,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:34:14,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:34:14,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:34:14,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:34:14,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:34:14,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:34:14,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:34:14,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:34:15,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:34:15,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:34:15,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:34:15,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:34:15,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:34:15,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:34:15,007 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:34:15,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:34:15,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:34:15,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:34:15,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:34:15,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:34:15,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:34:15,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:34:15,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:34:15,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:34:15,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:34:15,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:34:15,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:34:15,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:34:15,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:34:15,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:34:15,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:34:15,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:34:15,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:34:15,011 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:34:15,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:34:15,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:34:15,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:34:15,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 104510927d9409ade9caf80490257750edc55f0d04f472d0e2cf5426e55ff4e4 [2021-11-02 23:34:15,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:34:15,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:34:15,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:34:15,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:34:15,266 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:34:15,267 INFO L432 ainManager$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-alloc-spinlock_drivers-net-usb-kaweth.cil.i [2021-11-02 23:34:15,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b76485d/2d08805c52cb4fa0832bdbbc442a0dfd/FLAG97546a82a [2021-11-02 23:34:16,012 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:34:16,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i [2021-11-02 23:34:16,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b76485d/2d08805c52cb4fa0832bdbbc442a0dfd/FLAG97546a82a [2021-11-02 23:34:16,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b76485d/2d08805c52cb4fa0832bdbbc442a0dfd [2021-11-02 23:34:16,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:34:16,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:34:16,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:34:16,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:34:16,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:34:16,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:34:16" (1/1) ... [2021-11-02 23:34:16,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5175bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:16, skipping insertion in model container [2021-11-02 23:34:16,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:34:16" (1/1) ... [2021-11-02 23:34:16,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:34:16,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:34:18,250 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-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307491,307504] [2021-11-02 23:34:18,253 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-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307636,307649] [2021-11-02 23:34:18,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:34:18,308 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:34:18,555 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-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307491,307504] [2021-11-02 23:34:18,555 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-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307636,307649] [2021-11-02 23:34:18,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:34:18,710 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:34:18,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18 WrapperNode [2021-11-02 23:34:18,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:34:18,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:34:18,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:34:18,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:34:18,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:18,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:34:19,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:34:19,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:34:19,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:34:19,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:34:19,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:34:19,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:34:19,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:34:19,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (1/1) ... [2021-11-02 23:34:19,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:34:19,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 23:34:19,857 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) [2021-11-02 23:34:19,919 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 [2021-11-02 23:34:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 23:34:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:34:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 23:34:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 23:34:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:34:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 23:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:34:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 23:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-02 23:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:34:31,025 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 23:34:31,026 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 23:34:31,027 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 23:34:31,027 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 23:34:31,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:34:31,052 INFO L299 CfgBuilder]: Removed 2703 assume(true) statements. [2021-11-02 23:34:31,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:34:31 BoogieIcfgContainer [2021-11-02 23:34:31,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:34:31,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:34:31,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:34:31,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:34:31,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:34:16" (1/3) ... [2021-11-02 23:34:31,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ad1c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:34:31, skipping insertion in model container [2021-11-02 23:34:31,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:34:18" (2/3) ... [2021-11-02 23:34:31,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ad1c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:34:31, skipping insertion in model container [2021-11-02 23:34:31,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:34:31" (3/3) ... [2021-11-02 23:34:31,066 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i [2021-11-02 23:34:31,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:34:31,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2021-11-02 23:34:31,128 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:34:31,134 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 [2021-11-02 23:34:31,135 INFO L340 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2021-11-02 23:34:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 3189 states, 3130 states have (on average 1.4987220447284344) internal successors, (4691), 3188 states have internal predecessors, (4691), 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) [2021-11-02 23:34:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-02 23:34:31,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:34:31,214 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] [2021-11-02 23:34:31,215 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:34:31,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:34:31,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1107920357, now seen corresponding path program 1 times [2021-11-02 23:34:31,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:34:31,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318409961] [2021-11-02 23:34:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:34:31,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:34:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:34:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:34:32,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:34:32,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318409961] [2021-11-02 23:34:32,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318409961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:34:32,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:34:32,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:34:32,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800741112] [2021-11-02 23:34:32,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:34:32,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:34:32,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:34:32,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:34:32,073 INFO L87 Difference]: Start difference. First operand has 3189 states, 3130 states have (on average 1.4987220447284344) internal successors, (4691), 3188 states have internal predecessors, (4691), 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 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:34:34,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:35:07,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:35:34,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:35:34,199 INFO L93 Difference]: Finished difference Result 6757 states and 9925 transitions. [2021-11-02 23:35:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:35:34,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-02 23:35:34,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:35:34,232 INFO L225 Difference]: With dead ends: 6757 [2021-11-02 23:35:34,232 INFO L226 Difference]: Without dead ends: 3370 [2021-11-02 23:35:34,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:35:34,243 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 666 mSDsluCounter, 4488 mSDsCounter, 0 mSdLazyCounter, 8751 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58150.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 8768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.46ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 8751 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61281.87ms IncrementalHoareTripleChecker+Time [2021-11-02 23:35:34,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [666 Valid, 300 Invalid, 8768 Unknown, 0 Unchecked, 102.46ms Time], IncrementalHoareTripleChecker [16 Valid, 8751 Invalid, 1 Unknown, 0 Unchecked, 61281.87ms Time] [2021-11-02 23:35:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2021-11-02 23:35:34,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 3354. [2021-11-02 23:35:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 3295 states have (on average 1.4370257966616085) internal successors, (4735), 3353 states have internal predecessors, (4735), 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) [2021-11-02 23:35:34,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 4735 transitions. [2021-11-02 23:35:34,380 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 4735 transitions. Word has length 60 [2021-11-02 23:35:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:35:34,382 INFO L470 AbstractCegarLoop]: Abstraction has 3354 states and 4735 transitions. [2021-11-02 23:35:34,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:35:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 4735 transitions. [2021-11-02 23:35:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-02 23:35:34,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:35:34,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:35:34,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:35:34,386 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:35:34,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:35:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash -580581691, now seen corresponding path program 1 times [2021-11-02 23:35:34,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:35:34,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673710781] [2021-11-02 23:35:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:35:34,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:35:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:35:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:35:34,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:35:34,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673710781] [2021-11-02 23:35:34,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673710781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:35:34,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:35:34,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:35:34,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810088357] [2021-11-02 23:35:34,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:35:34,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:35:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:35:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:35:34,808 INFO L87 Difference]: Start difference. First operand 3354 states and 4735 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 23:35:36,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:35:51,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:36:37,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:36:37,179 INFO L93 Difference]: Finished difference Result 9290 states and 13162 transitions. [2021-11-02 23:36:37,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:36:37,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-02 23:36:37,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:36:37,204 INFO L225 Difference]: With dead ends: 9290 [2021-11-02 23:36:37,205 INFO L226 Difference]: Without dead ends: 6004 [2021-11-02 23:36:37,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:36:37,213 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3647 mSDsluCounter, 4119 mSDsCounter, 0 mSdLazyCounter, 8338 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58358.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3647 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.59ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61546.02ms IncrementalHoareTripleChecker+Time [2021-11-02 23:36:37,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3647 Valid, 0 Invalid, 8348 Unknown, 0 Unchecked, 68.59ms Time], IncrementalHoareTripleChecker [9 Valid, 8338 Invalid, 1 Unknown, 0 Unchecked, 61546.02ms Time] [2021-11-02 23:36:37,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-11-02 23:36:37,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 5844. [2021-11-02 23:36:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5844 states, 5785 states have (on average 1.4487467588591183) internal successors, (8381), 5843 states have internal predecessors, (8381), 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) [2021-11-02 23:36:37,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5844 states to 5844 states and 8381 transitions. [2021-11-02 23:36:37,358 INFO L78 Accepts]: Start accepts. Automaton has 5844 states and 8381 transitions. Word has length 70 [2021-11-02 23:36:37,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:36:37,358 INFO L470 AbstractCegarLoop]: Abstraction has 5844 states and 8381 transitions. [2021-11-02 23:36:37,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 23:36:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5844 states and 8381 transitions. [2021-11-02 23:36:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-02 23:36:37,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:36:37,365 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:36:37,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:36:37,366 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:36:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:36:37,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1725639997, now seen corresponding path program 1 times [2021-11-02 23:36:37,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:36:37,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503997211] [2021-11-02 23:36:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:36:37,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:36:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:36:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:36:37,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:36:37,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503997211] [2021-11-02 23:36:37,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503997211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:36:37,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:36:37,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:36:37,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020567866] [2021-11-02 23:36:37,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:36:37,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:36:37,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:36:37,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:36:37,686 INFO L87 Difference]: Start difference. First operand 5844 states and 8381 transitions. Second operand has 3 states, 3 states have (on average 25.0) 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) [2021-11-02 23:36:39,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:36:57,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:37:13,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:37:15,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:38:03,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:38:03,379 INFO L93 Difference]: Finished difference Result 17146 states and 24626 transitions. [2021-11-02 23:38:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:38:03,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) 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 75 [2021-11-02 23:38:03,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:38:03,417 INFO L225 Difference]: With dead ends: 17146 [2021-11-02 23:38:03,417 INFO L226 Difference]: Without dead ends: 11370 [2021-11-02 23:38:03,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:38:03,434 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3907 mSDsluCounter, 4166 mSDsCounter, 0 mSdLazyCounter, 12159 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81150.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3907 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.86ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12159 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84751.90ms IncrementalHoareTripleChecker+Time [2021-11-02 23:38:03,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3907 Valid, 0 Invalid, 12164 Unknown, 0 Unchecked, 78.86ms Time], IncrementalHoareTripleChecker [3 Valid, 12159 Invalid, 2 Unknown, 0 Unchecked, 84751.90ms Time] [2021-11-02 23:38:03,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11370 states. [2021-11-02 23:38:03,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 11242. [2021-11-02 23:38:03,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11242 states, 11183 states have (on average 1.4522936600196727) internal successors, (16241), 11241 states have internal predecessors, (16241), 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) [2021-11-02 23:38:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11242 states to 11242 states and 16241 transitions. [2021-11-02 23:38:03,704 INFO L78 Accepts]: Start accepts. Automaton has 11242 states and 16241 transitions. Word has length 75 [2021-11-02 23:38:03,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:38:03,704 INFO L470 AbstractCegarLoop]: Abstraction has 11242 states and 16241 transitions. [2021-11-02 23:38:03,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) 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) [2021-11-02 23:38:03,705 INFO L276 IsEmpty]: Start isEmpty. Operand 11242 states and 16241 transitions. [2021-11-02 23:38:03,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 23:38:03,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:38:03,708 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-02 23:38:03,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:38:03,709 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:38:03,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:38:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1416380071, now seen corresponding path program 1 times [2021-11-02 23:38:03,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:38:03,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482766813] [2021-11-02 23:38:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:38:03,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:38:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:38:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 23:38:04,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:38:04,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482766813] [2021-11-02 23:38:04,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482766813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:38:04,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:38:04,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:38:04,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496605232] [2021-11-02 23:38:04,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:38:04,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:38:04,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:38:04,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:38:04,195 INFO L87 Difference]: Start difference. First operand 11242 states and 16241 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-02 23:38:06,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:38:14,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:38:18,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:38:52,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:38:52,743 INFO L93 Difference]: Finished difference Result 23436 states and 33813 transitions. [2021-11-02 23:38:52,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:38:52,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 108 [2021-11-02 23:38:52,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:38:52,784 INFO L225 Difference]: With dead ends: 23436 [2021-11-02 23:38:52,784 INFO L226 Difference]: Without dead ends: 12262 [2021-11-02 23:38:52,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:38:52,807 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2743 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 6737 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45935.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.78ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 6737 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47910.25ms IncrementalHoareTripleChecker+Time [2021-11-02 23:38:52,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2743 Valid, 0 Invalid, 6749 Unknown, 0 Unchecked, 44.78ms Time], IncrementalHoareTripleChecker [10 Valid, 6737 Invalid, 2 Unknown, 0 Unchecked, 47910.25ms Time] [2021-11-02 23:38:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12262 states. [2021-11-02 23:38:53,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12262 to 12214. [2021-11-02 23:38:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12214 states, 12155 states have (on average 1.4449197860962566) internal successors, (17563), 12213 states have internal predecessors, (17563), 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) [2021-11-02 23:38:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12214 states to 12214 states and 17563 transitions. [2021-11-02 23:38:53,090 INFO L78 Accepts]: Start accepts. Automaton has 12214 states and 17563 transitions. Word has length 108 [2021-11-02 23:38:53,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:38:53,092 INFO L470 AbstractCegarLoop]: Abstraction has 12214 states and 17563 transitions. [2021-11-02 23:38:53,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-02 23:38:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand 12214 states and 17563 transitions. [2021-11-02 23:38:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-02 23:38:53,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:38:53,099 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:38:53,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:38:53,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:38:53,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:38:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2048557782, now seen corresponding path program 1 times [2021-11-02 23:38:53,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:38:53,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565057032] [2021-11-02 23:38:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:38:53,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:38:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:38:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-02 23:38:53,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:38:53,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565057032] [2021-11-02 23:38:53,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565057032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:38:53,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:38:53,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:38:53,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512120904] [2021-11-02 23:38:53,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:38:53,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:38:53,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:38:53,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:38:53,555 INFO L87 Difference]: Start difference. First operand 12214 states and 17563 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 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) [2021-11-02 23:38:55,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:39:03,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:39:34,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:39:55,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:39:55,531 INFO L93 Difference]: Finished difference Result 36276 states and 52192 transitions. [2021-11-02 23:39:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:39:55,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 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 157 [2021-11-02 23:39:55,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:39:55,589 INFO L225 Difference]: With dead ends: 36276 [2021-11-02 23:39:55,591 INFO L226 Difference]: Without dead ends: 24130 [2021-11-02 23:39:55,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:39:55,621 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3804 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 8281 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58327.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3804 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.97ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 8281 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61019.90ms IncrementalHoareTripleChecker+Time [2021-11-02 23:39:55,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3804 Valid, 0 Invalid, 8338 Unknown, 0 Unchecked, 58.97ms Time], IncrementalHoareTripleChecker [55 Valid, 8281 Invalid, 2 Unknown, 0 Unchecked, 61019.90ms Time] [2021-11-02 23:39:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24130 states. [2021-11-02 23:39:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24130 to 24018. [2021-11-02 23:39:56,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24018 states, 23959 states have (on average 1.4364122041821445) internal successors, (34415), 24017 states have internal predecessors, (34415), 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) [2021-11-02 23:39:56,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24018 states to 24018 states and 34415 transitions. [2021-11-02 23:39:56,163 INFO L78 Accepts]: Start accepts. Automaton has 24018 states and 34415 transitions. Word has length 157 [2021-11-02 23:39:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:39:56,165 INFO L470 AbstractCegarLoop]: Abstraction has 24018 states and 34415 transitions. [2021-11-02 23:39:56,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 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) [2021-11-02 23:39:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 24018 states and 34415 transitions. [2021-11-02 23:39:56,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-02 23:39:56,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:39:56,168 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:39:56,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:39:56,168 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:39:56,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:39:56,169 INFO L85 PathProgramCache]: Analyzing trace with hash -918977778, now seen corresponding path program 1 times [2021-11-02 23:39:56,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:39:56,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972782339] [2021-11-02 23:39:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:39:56,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:39:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:39:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-02 23:39:56,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:39:56,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972782339] [2021-11-02 23:39:56,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972782339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:39:56,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:39:56,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:39:56,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064172373] [2021-11-02 23:39:56,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:39:56,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:39:56,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:39:56,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:39:56,875 INFO L87 Difference]: Start difference. First operand 24018 states and 34415 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-02 23:39:59,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:40:14,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:40:20,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:41:11,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:41:11,622 INFO L93 Difference]: Finished difference Result 66200 states and 91915 transitions. [2021-11-02 23:41:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:41:11,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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 158 [2021-11-02 23:41:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:41:11,711 INFO L225 Difference]: With dead ends: 66200 [2021-11-02 23:41:11,711 INFO L226 Difference]: Without dead ends: 42250 [2021-11-02 23:41:11,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.73ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:41:11,759 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 8104 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 9440 mSolverCounterSat, 174 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70055.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8104 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 150.86ms SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 9440 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73166.34ms IncrementalHoareTripleChecker+Time [2021-11-02 23:41:11,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8104 Valid, 0 Invalid, 9617 Unknown, 0 Unchecked, 150.86ms Time], IncrementalHoareTripleChecker [174 Valid, 9440 Invalid, 3 Unknown, 0 Unchecked, 73166.34ms Time] [2021-11-02 23:41:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42250 states. [2021-11-02 23:41:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42250 to 21566. [2021-11-02 23:41:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21566 states, 21507 states have (on average 1.3570000464964895) internal successors, (29185), 21565 states have internal predecessors, (29185), 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) [2021-11-02 23:41:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21566 states to 21566 states and 29185 transitions. [2021-11-02 23:41:12,437 INFO L78 Accepts]: Start accepts. Automaton has 21566 states and 29185 transitions. Word has length 158 [2021-11-02 23:41:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:41:12,438 INFO L470 AbstractCegarLoop]: Abstraction has 21566 states and 29185 transitions. [2021-11-02 23:41:12,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-02 23:41:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 21566 states and 29185 transitions. [2021-11-02 23:41:12,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-02 23:41:12,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:41:12,441 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:41:12,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:41:12,441 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:41:12,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:41:12,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1576849329, now seen corresponding path program 1 times [2021-11-02 23:41:12,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:41:12,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989453020] [2021-11-02 23:41:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:41:12,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:41:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:41:12,892 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-02 23:41:12,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:41:12,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989453020] [2021-11-02 23:41:12,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989453020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:41:12,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:41:12,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:41:12,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686185706] [2021-11-02 23:41:12,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:41:12,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:41:12,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:41:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:41:12,894 INFO L87 Difference]: Start difference. First operand 21566 states and 29185 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 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) [2021-11-02 23:41:14,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:41:23,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:41:30,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:41:34,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:41:37,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:41:39,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:41:59,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:42:02,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:43:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:43:27,871 INFO L93 Difference]: Finished difference Result 99828 states and 132183 transitions. [2021-11-02 23:43:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:43:27,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 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 159 [2021-11-02 23:43:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:43:28,045 INFO L225 Difference]: With dead ends: 99828 [2021-11-02 23:43:28,045 INFO L226 Difference]: Without dead ends: 78330 [2021-11-02 23:43:28,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 100.88ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:43:28,113 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11544 mSDsluCounter, 9617 mSDsCounter, 0 mSdLazyCounter, 16821 mSolverCounterSat, 282 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125900.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11544 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 173.55ms SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 16821 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132166.39ms IncrementalHoareTripleChecker+Time [2021-11-02 23:43:28,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11544 Valid, 0 Invalid, 17107 Unknown, 0 Unchecked, 173.55ms Time], IncrementalHoareTripleChecker [282 Valid, 16821 Invalid, 4 Unknown, 0 Unchecked, 132166.39ms Time] [2021-11-02 23:43:28,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78330 states. [2021-11-02 23:43:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78330 to 77444. [2021-11-02 23:43:29,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77444 states, 77385 states have (on average 1.3131614654002715) internal successors, (101619), 77443 states have internal predecessors, (101619), 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) [2021-11-02 23:43:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77444 states to 77444 states and 101619 transitions. [2021-11-02 23:43:30,056 INFO L78 Accepts]: Start accepts. Automaton has 77444 states and 101619 transitions. Word has length 159 [2021-11-02 23:43:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:43:30,056 INFO L470 AbstractCegarLoop]: Abstraction has 77444 states and 101619 transitions. [2021-11-02 23:43:30,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 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) [2021-11-02 23:43:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand 77444 states and 101619 transitions. [2021-11-02 23:43:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-02 23:43:30,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:43:30,060 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:43:30,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 23:43:30,060 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:43:30,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:43:30,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1638227273, now seen corresponding path program 1 times [2021-11-02 23:43:30,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:43:30,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210728824] [2021-11-02 23:43:30,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:43:30,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:43:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:43:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-02 23:43:30,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:43:30,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210728824] [2021-11-02 23:43:30,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210728824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:43:30,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:43:30,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:43:30,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954752097] [2021-11-02 23:43:30,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:43:30,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:43:30,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:43:30,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:43:30,480 INFO L87 Difference]: Start difference. First operand 77444 states and 101619 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-02 23:43:32,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:43:36,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:43:42,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:43:51,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:43:58,533 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 [] [2021-11-02 23:45:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:45:27,450 INFO L93 Difference]: Finished difference Result 266108 states and 347743 transitions. [2021-11-02 23:45:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:45:27,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 160 [2021-11-02 23:45:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:45:28,029 INFO L225 Difference]: With dead ends: 266108 [2021-11-02 23:45:28,029 INFO L226 Difference]: Without dead ends: 205988 [2021-11-02 23:45:28,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 104.30ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:45:28,145 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10113 mSDsluCounter, 6818 mSDsCounter, 0 mSdLazyCounter, 14297 mSolverCounterSat, 209 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106536.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10113 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 134.34ms SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 14297 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111837.62ms IncrementalHoareTripleChecker+Time [2021-11-02 23:45:28,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10113 Valid, 0 Invalid, 14509 Unknown, 0 Unchecked, 134.34ms Time], IncrementalHoareTripleChecker [209 Valid, 14297 Invalid, 3 Unknown, 0 Unchecked, 111837.62ms Time] [2021-11-02 23:45:28,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205988 states. [2021-11-02 23:45:33,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205988 to 194308. [2021-11-02 23:45:34,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194308 states, 194249 states have (on average 1.3035279460898126) internal successors, (253209), 194307 states have internal predecessors, (253209), 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) [2021-11-02 23:45:34,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194308 states to 194308 states and 253209 transitions. [2021-11-02 23:45:34,708 INFO L78 Accepts]: Start accepts. Automaton has 194308 states and 253209 transitions. Word has length 160 [2021-11-02 23:45:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:45:34,708 INFO L470 AbstractCegarLoop]: Abstraction has 194308 states and 253209 transitions. [2021-11-02 23:45:34,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-02 23:45:34,708 INFO L276 IsEmpty]: Start isEmpty. Operand 194308 states and 253209 transitions. [2021-11-02 23:45:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-02 23:45:34,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:45:34,711 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:45:34,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 23:45:34,712 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 56 more)] === [2021-11-02 23:45:34,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:45:34,712 INFO L85 PathProgramCache]: Analyzing trace with hash -753874804, now seen corresponding path program 1 times [2021-11-02 23:45:34,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:45:34,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994821360] [2021-11-02 23:45:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:45:34,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:45:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:45:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-02 23:45:35,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:45:35,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994821360] [2021-11-02 23:45:35,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994821360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:45:35,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:45:35,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:45:35,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056890643] [2021-11-02 23:45:35,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:45:35,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:45:35,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:45:35,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:45:35,164 INFO L87 Difference]: Start difference. First operand 194308 states and 253209 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-02 23:45:37,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:45:47,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:45:51,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:45:54,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:47:01,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:47:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:47:51,088 INFO L93 Difference]: Finished difference Result 482496 states and 629243 transitions. [2021-11-02 23:47:51,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:47:51,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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 [2021-11-02 23:47:51,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:47:52,010 INFO L225 Difference]: With dead ends: 482496 [2021-11-02 23:47:52,011 INFO L226 Difference]: Without dead ends: 326796 [2021-11-02 23:47:52,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 115.79ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:47:52,244 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11073 mSDsluCounter, 9871 mSDsCounter, 0 mSdLazyCounter, 16902 mSolverCounterSat, 226 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120489.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11073 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 159.74ms SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 16902 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126768.13ms IncrementalHoareTripleChecker+Time [2021-11-02 23:47:52,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11073 Valid, 0 Invalid, 17130 Unknown, 0 Unchecked, 159.74ms Time], IncrementalHoareTripleChecker [226 Valid, 16902 Invalid, 2 Unknown, 0 Unchecked, 126768.13ms Time] [2021-11-02 23:47:52,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326796 states. [2021-11-02 23:48:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326796 to 249724. Killed by 15