./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 18:34:51,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 18:34:51,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 18:34:51,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 18:34:51,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 18:34:51,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 18:34:51,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 18:34:51,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 18:34:51,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 18:34:51,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 18:34:51,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 18:34:51,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 18:34:51,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 18:34:51,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 18:34:51,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 18:34:51,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 18:34:51,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 18:34:51,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 18:34:51,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 18:34:51,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 18:34:51,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 18:34:51,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 18:34:51,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 18:34:51,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 18:34:51,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 18:34:51,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 18:34:51,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 18:34:51,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 18:34:51,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 18:34:51,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 18:34:51,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 18:34:51,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 18:34:51,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 18:34:51,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 18:34:51,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 18:34:51,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 18:34:51,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 18:34:51,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 18:34:51,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 18:34:51,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 18:34:51,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 18:34:51,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 18:34:51,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 18:34:51,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 18:34:51,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 18:34:51,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 18:34:51,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 18:34:51,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 18:34:51,992 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 18:34:51,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 18:34:51,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 18:34:51,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 18:34:51,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 18:34:51,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 18:34:51,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 18:34:51,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 18:34:51,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 18:34:51,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 18:34:51,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 18:34:51,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 18:34:51,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 18:34:51,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:34:51,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 18:34:51,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 18:34:51,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 18:34:51,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 18:34:51,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 18:34:51,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 18:34:51,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 18:34:51,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 18:34:51,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 18:34:51,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-07 18:34:52,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 18:34:52,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 18:34:52,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 18:34:52,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 18:34:52,262 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 18:34:52,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 18:34:52,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368689d01/88e642fb13984786ad4eaa6e73687759/FLAGd362b9d0c [2021-11-07 18:34:53,073 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 18:34:53,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 18:34:53,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368689d01/88e642fb13984786ad4eaa6e73687759/FLAGd362b9d0c [2021-11-07 18:34:53,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368689d01/88e642fb13984786ad4eaa6e73687759 [2021-11-07 18:34:53,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 18:34:53,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 18:34:53,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 18:34:53,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 18:34:53,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 18:34:53,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:34:53" (1/1) ... [2021-11-07 18:34:53,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9c7625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:53, skipping insertion in model container [2021-11-07 18:34:53,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:34:53" (1/1) ... [2021-11-07 18:34:53,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 18:34:53,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 18:34:55,233 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-07 18:34:55,237 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-07 18:34:55,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:34:55,299 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 18:34:55,673 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-07 18:34:55,674 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-07 18:34:55,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:34:55,834 INFO L208 MainTranslator]: Completed translation [2021-11-07 18:34:55,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55 WrapperNode [2021-11-07 18:34:55,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 18:34:55,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 18:34:55,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 18:34:55,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 18:34:55,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:55,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:56,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 18:34:56,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 18:34:56,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 18:34:56,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 18:34:56,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:56,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:57,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:57,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:57,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:57,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:57,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:58,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 18:34:58,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 18:34:58,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 18:34:58,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 18:34:58,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (1/1) ... [2021-11-07 18:34:58,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:34:58,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 18:34:58,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 18:34:58,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 18:34:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 18:34:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 18:34:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 18:34:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 18:34:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 18:34:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 18:34:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 18:34:58,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 18:34:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 18:34:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 18:34:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 18:34:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 18:34:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 18:34:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 18:34:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 18:35:19,212 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 18:35:19,213 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 18:35:19,213 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 18:35:19,213 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 18:35:19,214 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 18:35:19,215 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 18:35:19,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 18:35:19,259 INFO L299 CfgBuilder]: Removed 10504 assume(true) statements. [2021-11-07 18:35:19,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:19 BoogieIcfgContainer [2021-11-07 18:35:19,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 18:35:19,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 18:35:19,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 18:35:19,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 18:35:19,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:34:53" (1/3) ... [2021-11-07 18:35:19,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ab4ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:19, skipping insertion in model container [2021-11-07 18:35:19,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:55" (2/3) ... [2021-11-07 18:35:19,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ab4ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:19, skipping insertion in model container [2021-11-07 18:35:19,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:19" (3/3) ... [2021-11-07 18:35:19,273 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 18:35:19,277 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 18:35:19,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-07 18:35:19,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 18:35:19,338 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 18:35:19,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-07 18:35:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 6745 states, 6733 states have (on average 1.2137234516560225) internal successors, (8172), 6744 states have internal predecessors, (8172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:19,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 18:35:19,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:19,470 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] [2021-11-07 18:35:19,471 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash -767304460, now seen corresponding path program 1 times [2021-11-07 18:35:19,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:19,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720800999] [2021-11-07 18:35:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:19,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:35:20,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:20,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720800999] [2021-11-07 18:35:20,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720800999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:20,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:20,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:35:20,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933622981] [2021-11-07 18:35:20,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:20,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:20,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:20,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:20,220 INFO L87 Difference]: Start difference. First operand has 6745 states, 6733 states have (on average 1.2137234516560225) internal successors, (8172), 6744 states have internal predecessors, (8172), 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 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:22,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:35:23,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:23,169 INFO L93 Difference]: Finished difference Result 19648 states and 23735 transitions. [2021-11-07 18:35:23,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:23,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2021-11-07 18:35:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:23,242 INFO L225 Difference]: With dead ends: 19648 [2021-11-07 18:35:23,242 INFO L226 Difference]: Without dead ends: 12645 [2021-11-07 18:35:23,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:23,271 INFO L933 BasicCegarLoop]: 8121 mSDtfsCounter, 7619 mSDsluCounter, 7955 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2143.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7619 SdHoareTripleChecker+Valid, 16076 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.78ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2306.29ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:23,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7619 Valid, 16076 Invalid, 44 Unknown, 0 Unchecked, 36.78ms Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2306.29ms Time] [2021-11-07 18:35:23,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12645 states. [2021-11-07 18:35:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12645 to 12317. [2021-11-07 18:35:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12317 states, 12305 states have (on average 1.1919544900446972) internal successors, (14667), 12316 states have internal predecessors, (14667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12317 states to 12317 states and 14667 transitions. [2021-11-07 18:35:23,652 INFO L78 Accepts]: Start accepts. Automaton has 12317 states and 14667 transitions. Word has length 64 [2021-11-07 18:35:23,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:35:23,652 INFO L470 AbstractCegarLoop]: Abstraction has 12317 states and 14667 transitions. [2021-11-07 18:35:23,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 12317 states and 14667 transitions. [2021-11-07 18:35:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 18:35:23,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:23,656 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] [2021-11-07 18:35:23,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 18:35:23,657 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1484214665, now seen corresponding path program 1 times [2021-11-07 18:35:23,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:23,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614265915] [2021-11-07 18:35:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:23,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:35:23,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:23,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614265915] [2021-11-07 18:35:23,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614265915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:23,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:23,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:35:23,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938544781] [2021-11-07 18:35:23,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:23,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:23,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:23,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:23,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:23,870 INFO L87 Difference]: Start difference. First operand 12317 states and 14667 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) [2021-11-07 18:35:25,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:35:26,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:26,632 INFO L93 Difference]: Finished difference Result 28470 states and 34043 transitions. [2021-11-07 18:35:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:26,633 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 [2021-11-07 18:35:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:26,704 INFO L225 Difference]: With dead ends: 28470 [2021-11-07 18:35:26,704 INFO L226 Difference]: Without dead ends: 16229 [2021-11-07 18:35:26,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:26,737 INFO L933 BasicCegarLoop]: 8147 mSDtfsCounter, 2552 mSDsluCounter, 7750 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2193.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 15897 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.02ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2367.68ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:26,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2552 Valid, 15897 Invalid, 88 Unknown, 0 Unchecked, 18.02ms Time], IncrementalHoareTripleChecker [17 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2367.68ms Time] [2021-11-07 18:35:26,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16229 states. [2021-11-07 18:35:27,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16229 to 16211. [2021-11-07 18:35:27,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16211 states, 16199 states have (on average 1.1985925057102291) internal successors, (19416), 16210 states have internal predecessors, (19416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16211 states to 16211 states and 19416 transitions. [2021-11-07 18:35:27,157 INFO L78 Accepts]: Start accepts. Automaton has 16211 states and 19416 transitions. Word has length 70 [2021-11-07 18:35:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:35:27,157 INFO L470 AbstractCegarLoop]: Abstraction has 16211 states and 19416 transitions. [2021-11-07 18:35:27,158 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) [2021-11-07 18:35:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 16211 states and 19416 transitions. [2021-11-07 18:35:27,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 18:35:27,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:27,165 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, 1, 1, 1] [2021-11-07 18:35:27,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 18:35:27,165 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:27,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:27,166 INFO L85 PathProgramCache]: Analyzing trace with hash -662246185, now seen corresponding path program 1 times [2021-11-07 18:35:27,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:27,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480842001] [2021-11-07 18:35:27,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:27,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:35:27,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:27,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480842001] [2021-11-07 18:35:27,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480842001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:27,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:27,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:35:27,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887706449] [2021-11-07 18:35:27,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:27,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:27,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:27,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:27,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:27,377 INFO L87 Difference]: Start difference. First operand 16211 states and 19416 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:29,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:35:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:30,300 INFO L93 Difference]: Finished difference Result 46602 states and 55585 transitions. [2021-11-07 18:35:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 18:35:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:30,387 INFO L225 Difference]: With dead ends: 46602 [2021-11-07 18:35:30,388 INFO L226 Difference]: Without dead ends: 30467 [2021-11-07 18:35:30,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:30,430 INFO L933 BasicCegarLoop]: 7796 mSDtfsCounter, 7106 mSDsluCounter, 7645 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2155.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7106 SdHoareTripleChecker+Valid, 15441 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.16ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2316.83ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:30,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7106 Valid, 15441 Invalid, 65 Unknown, 0 Unchecked, 18.16ms Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 2316.83ms Time] [2021-11-07 18:35:30,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30467 states. [2021-11-07 18:35:31,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30467 to 30210. [2021-11-07 18:35:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30210 states, 30198 states have (on average 1.1907742234585073) internal successors, (35959), 30209 states have internal predecessors, (35959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30210 states to 30210 states and 35959 transitions. [2021-11-07 18:35:31,417 INFO L78 Accepts]: Start accepts. Automaton has 30210 states and 35959 transitions. Word has length 73 [2021-11-07 18:35:31,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:35:31,418 INFO L470 AbstractCegarLoop]: Abstraction has 30210 states and 35959 transitions. [2021-11-07 18:35:31,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:31,419 INFO L276 IsEmpty]: Start isEmpty. Operand 30210 states and 35959 transitions. [2021-11-07 18:35:31,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-07 18:35:31,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:31,424 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:35:31,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 18:35:31,428 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:31,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:31,429 INFO L85 PathProgramCache]: Analyzing trace with hash -168020102, now seen corresponding path program 1 times [2021-11-07 18:35:31,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:31,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671743742] [2021-11-07 18:35:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:31,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:35:31,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:31,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671743742] [2021-11-07 18:35:31,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671743742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:31,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:31,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 18:35:31,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775257129] [2021-11-07 18:35:31,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:31,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:31,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:31,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:31,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:31,816 INFO L87 Difference]: Start difference. First operand 30210 states and 35959 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:33,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:33,140 INFO L93 Difference]: Finished difference Result 90478 states and 107707 transitions. [2021-11-07 18:35:33,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:33,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 [2021-11-07 18:35:33,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:33,292 INFO L225 Difference]: With dead ends: 90478 [2021-11-07 18:35:33,293 INFO L226 Difference]: Without dead ends: 60344 [2021-11-07 18:35:33,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:33,391 INFO L933 BasicCegarLoop]: 7745 mSDtfsCounter, 7699 mSDsluCounter, 7598 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 334.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7699 SdHoareTripleChecker+Valid, 15343 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.92ms SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 414.68ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:33,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7699 Valid, 15343 Invalid, 244 Unknown, 0 Unchecked, 14.92ms Time], IncrementalHoareTripleChecker [121 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 414.68ms Time] [2021-11-07 18:35:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60344 states. [2021-11-07 18:35:34,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60344 to 60320. [2021-11-07 18:35:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60320 states, 60308 states have (on average 1.186326855475227) internal successors, (71545), 60319 states have internal predecessors, (71545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60320 states to 60320 states and 71545 transitions. [2021-11-07 18:35:35,137 INFO L78 Accepts]: Start accepts. Automaton has 60320 states and 71545 transitions. Word has length 108 [2021-11-07 18:35:35,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:35:35,137 INFO L470 AbstractCegarLoop]: Abstraction has 60320 states and 71545 transitions. [2021-11-07 18:35:35,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 60320 states and 71545 transitions. [2021-11-07 18:35:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-07 18:35:35,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:35,146 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:35:35,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 18:35:35,146 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:35,147 INFO L85 PathProgramCache]: Analyzing trace with hash -585416708, now seen corresponding path program 1 times [2021-11-07 18:35:35,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:35,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068304741] [2021-11-07 18:35:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:35,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:35:35,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:35,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068304741] [2021-11-07 18:35:35,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068304741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:35,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:35,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 18:35:35,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990394213] [2021-11-07 18:35:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:35,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:35,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:35,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:35,333 INFO L87 Difference]: Start difference. First operand 60320 states and 71545 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:36,636 INFO L93 Difference]: Finished difference Result 120548 states and 142989 transitions. [2021-11-07 18:35:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 [2021-11-07 18:35:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:36,758 INFO L225 Difference]: With dead ends: 120548 [2021-11-07 18:35:36,759 INFO L226 Difference]: Without dead ends: 60304 [2021-11-07 18:35:36,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:36,867 INFO L933 BasicCegarLoop]: 7797 mSDtfsCounter, 7753 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7753 SdHoareTripleChecker+Valid, 7797 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.24ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.89ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:36,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7753 Valid, 7797 Invalid, 7 Unknown, 0 Unchecked, 8.24ms Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 9.89ms Time] [2021-11-07 18:35:36,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60304 states. [2021-11-07 18:35:38,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60304 to 60304. [2021-11-07 18:35:38,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60304 states, 60292 states have (on average 1.1853148013003383) internal successors, (71465), 60303 states have internal predecessors, (71465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60304 states to 60304 states and 71465 transitions. [2021-11-07 18:35:38,397 INFO L78 Accepts]: Start accepts. Automaton has 60304 states and 71465 transitions. Word has length 108 [2021-11-07 18:35:38,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:35:38,397 INFO L470 AbstractCegarLoop]: Abstraction has 60304 states and 71465 transitions. [2021-11-07 18:35:38,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:38,401 INFO L276 IsEmpty]: Start isEmpty. Operand 60304 states and 71465 transitions. [2021-11-07 18:35:38,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-07 18:35:38,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:38,407 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:35:38,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 18:35:38,408 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:38,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:38,408 INFO L85 PathProgramCache]: Analyzing trace with hash 267003565, now seen corresponding path program 1 times [2021-11-07 18:35:38,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:38,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580414720] [2021-11-07 18:35:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:38,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:35:38,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:38,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580414720] [2021-11-07 18:35:38,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580414720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:38,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:38,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:35:38,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372224968] [2021-11-07 18:35:38,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:38,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:38,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:38,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:38,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:38,591 INFO L87 Difference]: Start difference. First operand 60304 states and 71465 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:40,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:35:42,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:42,342 INFO L93 Difference]: Finished difference Result 134350 states and 159478 transitions. [2021-11-07 18:35:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:42,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-11-07 18:35:42,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:42,526 INFO L225 Difference]: With dead ends: 134350 [2021-11-07 18:35:42,526 INFO L226 Difference]: Without dead ends: 74122 [2021-11-07 18:35:42,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:42,614 INFO L933 BasicCegarLoop]: 10339 mSDtfsCounter, 2550 mSDsluCounter, 7730 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2154.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2550 SdHoareTripleChecker+Valid, 18069 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.20ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2286.79ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:42,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2550 Valid, 18069 Invalid, 86 Unknown, 0 Unchecked, 10.20ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2286.79ms Time] [2021-11-07 18:35:42,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74122 states. [2021-11-07 18:35:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74122 to 74080. [2021-11-07 18:35:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74080 states, 74068 states have (on average 1.187300858670411) internal successors, (87941), 74079 states have internal predecessors, (87941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74080 states to 74080 states and 87941 transitions. [2021-11-07 18:35:44,321 INFO L78 Accepts]: Start accepts. Automaton has 74080 states and 87941 transitions. Word has length 111 [2021-11-07 18:35:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:35:44,321 INFO L470 AbstractCegarLoop]: Abstraction has 74080 states and 87941 transitions. [2021-11-07 18:35:44,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 74080 states and 87941 transitions. [2021-11-07 18:35:44,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-07 18:35:44,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:44,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:35:44,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 18:35:44,503 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:44,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1758692867, now seen corresponding path program 1 times [2021-11-07 18:35:44,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:44,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944472976] [2021-11-07 18:35:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:44,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:35:44,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:44,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944472976] [2021-11-07 18:35:44,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944472976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:44,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:44,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:35:44,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637394303] [2021-11-07 18:35:44,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:44,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:44,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:44,698 INFO L87 Difference]: Start difference. First operand 74080 states and 87941 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:46,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:35:49,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:49,071 INFO L93 Difference]: Finished difference Result 190572 states and 227306 transitions. [2021-11-07 18:35:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:49,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-07 18:35:49,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:49,303 INFO L225 Difference]: With dead ends: 190572 [2021-11-07 18:35:49,303 INFO L226 Difference]: Without dead ends: 116568 [2021-11-07 18:35:49,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:49,603 INFO L933 BasicCegarLoop]: 7792 mSDtfsCounter, 6226 mSDsluCounter, 7367 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2092.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6226 SdHoareTripleChecker+Valid, 15159 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.87ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2195.89ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:49,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6226 Valid, 15159 Invalid, 28 Unknown, 0 Unchecked, 11.87ms Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2195.89ms Time] [2021-11-07 18:35:49,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116568 states. [2021-11-07 18:35:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116568 to 116344. [2021-11-07 18:35:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116344 states, 116332 states have (on average 1.1964807619571571) internal successors, (139189), 116343 states have internal predecessors, (139189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:52,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116344 states to 116344 states and 139189 transitions. [2021-11-07 18:35:52,825 INFO L78 Accepts]: Start accepts. Automaton has 116344 states and 139189 transitions. Word has length 139 [2021-11-07 18:35:52,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:35:52,825 INFO L470 AbstractCegarLoop]: Abstraction has 116344 states and 139189 transitions. [2021-11-07 18:35:52,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:52,825 INFO L276 IsEmpty]: Start isEmpty. Operand 116344 states and 139189 transitions. [2021-11-07 18:35:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-07 18:35:52,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:35:52,854 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:35:52,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 18:35:52,855 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:35:52,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:35:52,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1614672935, now seen corresponding path program 1 times [2021-11-07 18:35:52,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:35:52,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636266307] [2021-11-07 18:35:52,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:35:52,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:35:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:35:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 18:35:53,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:35:53,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636266307] [2021-11-07 18:35:53,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636266307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:35:53,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:35:53,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:35:53,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62770001] [2021-11-07 18:35:53,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:35:53,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:35:53,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:35:53,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:35:53,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:53,044 INFO L87 Difference]: Start difference. First operand 116344 states and 139189 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:35:55,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:35:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:35:58,136 INFO L93 Difference]: Finished difference Result 249950 states and 299622 transitions. [2021-11-07 18:35:58,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:35:58,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 148 [2021-11-07 18:35:58,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:35:58,408 INFO L225 Difference]: With dead ends: 249950 [2021-11-07 18:35:58,408 INFO L226 Difference]: Without dead ends: 133682 [2021-11-07 18:35:58,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:35:58,568 INFO L933 BasicCegarLoop]: 10339 mSDtfsCounter, 2544 mSDsluCounter, 7743 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2181.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 18082 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.18ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2321.77ms IncrementalHoareTripleChecker+Time [2021-11-07 18:35:58,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2544 Valid, 18082 Invalid, 79 Unknown, 0 Unchecked, 12.18ms Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2321.77ms Time] [2021-11-07 18:35:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133682 states. [2021-11-07 18:36:01,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133682 to 133608. [2021-11-07 18:36:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133608 states, 133596 states have (on average 1.1996841222791101) internal successors, (160273), 133607 states have internal predecessors, (160273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:36:01,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133608 states to 133608 states and 160273 transitions. [2021-11-07 18:36:01,852 INFO L78 Accepts]: Start accepts. Automaton has 133608 states and 160273 transitions. Word has length 148 [2021-11-07 18:36:01,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:36:01,852 INFO L470 AbstractCegarLoop]: Abstraction has 133608 states and 160273 transitions. [2021-11-07 18:36:01,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:36:01,852 INFO L276 IsEmpty]: Start isEmpty. Operand 133608 states and 160273 transitions. [2021-11-07 18:36:01,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-07 18:36:01,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:36:01,863 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:36:01,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 18:36:01,863 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 18:36:01,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:36:01,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1308487063, now seen corresponding path program 1 times [2021-11-07 18:36:01,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:36:01,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792704280] [2021-11-07 18:36:01,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:36:01,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:36:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:36:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 18:36:02,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:36:02,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792704280] [2021-11-07 18:36:02,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792704280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:36:02,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:36:02,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:36:02,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600333633] [2021-11-07 18:36:02,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:36:02,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:36:02,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:36:02,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:36:02,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:36:02,018 INFO L87 Difference]: Start difference. First operand 133608 states and 160273 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:36:04,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:36:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:36:07,506 INFO L93 Difference]: Finished difference Result 284526 states and 341886 transitions. [2021-11-07 18:36:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:36:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 148 [2021-11-07 18:36:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:36:07,807 INFO L225 Difference]: With dead ends: 284526 [2021-11-07 18:36:07,807 INFO L226 Difference]: Without dead ends: 150994 [2021-11-07 18:36:07,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:36:07,983 INFO L933 BasicCegarLoop]: 10339 mSDtfsCounter, 3627 mSDsluCounter, 6663 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2156.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 17002 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.44ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2269.44ms IncrementalHoareTripleChecker+Time [2021-11-07 18:36:07,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3627 Valid, 17002 Invalid, 85 Unknown, 0 Unchecked, 11.44ms Time], IncrementalHoareTripleChecker [16 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2269.44ms Time] [2021-11-07 18:36:08,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150994 states.