./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.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 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:30:19,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:30:19,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:30:19,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:30:19,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:30:19,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:30:19,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:30:19,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:30:19,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:30:19,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:30:19,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:30:19,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:30:19,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:30:19,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:30:19,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:30:19,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:30:19,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:30:19,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:30:19,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:30:19,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:30:19,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:30:19,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:30:19,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:30:19,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:30:19,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:30:19,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:30:19,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:30:19,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:30:19,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:30:19,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:30:19,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:30:19,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:30:19,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:30:19,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:30:19,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:30:19,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:30:19,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:30:19,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:30:19,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:30:19,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:30:19,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:30:20,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:30:20,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:30:20,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:30:20,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:30:20,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:30:20,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:30:20,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:30:20,035 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:30:20,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:30:20,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:30:20,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:30:20,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:30:20,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:30:20,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:30:20,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:30:20,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:30:20,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:30:20,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:30:20,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:30:20,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:30:20,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:30:20,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:30:20,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:30:20,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:30:20,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:30:20,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:30:20,038 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:30:20,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:30:20,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:30:20,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:30:20,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 [2021-11-06 18:30:20,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:30:20,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:30:20,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:30:20,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:30:20,253 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:30:20,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-06 18:30:20,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e454e253c/b307f4a6f68449a88958fd4163ba1811/FLAG3c4cf7f56 [2021-11-06 18:30:20,932 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:30:20,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-06 18:30:20,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e454e253c/b307f4a6f68449a88958fd4163ba1811/FLAG3c4cf7f56 [2021-11-06 18:30:21,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e454e253c/b307f4a6f68449a88958fd4163ba1811 [2021-11-06 18:30:21,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:30:21,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:30:21,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:30:21,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:30:21,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:30:21,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:30:21" (1/1) ... [2021-11-06 18:30:21,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18410a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:21, skipping insertion in model container [2021-11-06 18:30:21,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:30:21" (1/1) ... [2021-11-06 18:30:21,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:30:21,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:30:22,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-06 18:30:22,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-06 18:30:22,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-06 18:30:22,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-06 18:30:22,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:30:22,578 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:30:22,763 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-06 18:30:22,764 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-06 18:30:22,764 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-06 18:30:22,764 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-06 18:30:22,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:30:22,830 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:30:22,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22 WrapperNode [2021-11-06 18:30:22,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:30:22,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:30:22,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:30:22,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:30:22,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:22,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:30:23,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:30:23,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:30:23,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:30:23,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:30:23,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:30:23,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:30:23,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:30:23,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (1/1) ... [2021-11-06 18:30:23,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:30:23,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:30:23,591 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) [2021-11-06 18:30:23,608 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 [2021-11-06 18:30:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 18:30:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:30:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:30:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:30:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:30:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:30:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 18:30:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:30:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:30:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:31:31,162 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:31:31,162 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 18:31:31,162 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 18:31:31,162 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:31:31,163 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:31:31,163 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:31:31,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:31:31,181 INFO L299 CfgBuilder]: Removed 2079 assume(true) statements. [2021-11-06 18:31:31,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:31:31 BoogieIcfgContainer [2021-11-06 18:31:31,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:31:31,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:31:31,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:31:31,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:31:31,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:30:21" (1/3) ... [2021-11-06 18:31:31,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ecf9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:31:31, skipping insertion in model container [2021-11-06 18:31:31,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:22" (2/3) ... [2021-11-06 18:31:31,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ecf9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:31:31, skipping insertion in model container [2021-11-06 18:31:31,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:31:31" (3/3) ... [2021-11-06 18:31:31,190 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-06 18:31:31,193 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:31:31,193 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2021-11-06 18:31:31,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:31:31,239 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 [2021-11-06 18:31:31,240 INFO L340 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2021-11-06 18:31:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 2345 states, 2279 states have (on average 1.3878894251864853) internal successors, (3163), 2344 states have internal predecessors, (3163), 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) [2021-11-06 18:31:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 18:31:31,277 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:31,278 INFO L513 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] [2021-11-06 18:31:31,278 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:31,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash 498865296, now seen corresponding path program 1 times [2021-11-06 18:31:31,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:31,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835330313] [2021-11-06 18:31:31,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:31,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:31,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:31,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:31,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835330313] [2021-11-06 18:31:31,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835330313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:31,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:31,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:31,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293291245] [2021-11-06 18:31:31,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:31,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:31,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:31,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:31,946 INFO L87 Difference]: Start difference. First operand has 2345 states, 2279 states have (on average 1.3878894251864853) internal successors, (3163), 2344 states have internal predecessors, (3163), 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 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-06 18:31:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:34,552 INFO L93 Difference]: Finished difference Result 6068 states and 8180 transitions. [2021-11-06 18:31:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:34,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-06 18:31:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:34,576 INFO L225 Difference]: With dead ends: 6068 [2021-11-06 18:31:34,576 INFO L226 Difference]: Without dead ends: 3655 [2021-11-06 18:31:34,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:34,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2021-11-06 18:31:34,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3493. [2021-11-06 18:31:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3493 states, 3427 states have (on average 1.2847971987160782) internal successors, (4403), 3492 states have internal predecessors, (4403), 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) [2021-11-06 18:31:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3493 states to 3493 states and 4403 transitions. [2021-11-06 18:31:34,696 INFO L78 Accepts]: Start accepts. Automaton has 3493 states and 4403 transitions. Word has length 72 [2021-11-06 18:31:34,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:34,696 INFO L470 AbstractCegarLoop]: Abstraction has 3493 states and 4403 transitions. [2021-11-06 18:31:34,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-06 18:31:34,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3493 states and 4403 transitions. [2021-11-06 18:31:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 18:31:34,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:34,703 INFO L513 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] [2021-11-06 18:31:34,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:31:34,704 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 331656513, now seen corresponding path program 1 times [2021-11-06 18:31:34,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:34,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003319290] [2021-11-06 18:31:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:34,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:35,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:35,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003319290] [2021-11-06 18:31:35,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003319290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:35,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:35,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:35,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869648844] [2021-11-06 18:31:35,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:35,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:35,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:35,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:35,074 INFO L87 Difference]: Start difference. First operand 3493 states and 4403 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) [2021-11-06 18:31:37,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:37,621 INFO L93 Difference]: Finished difference Result 9543 states and 12085 transitions. [2021-11-06 18:31:37,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:37,622 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 [2021-11-06 18:31:37,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:37,639 INFO L225 Difference]: With dead ends: 9543 [2021-11-06 18:31:37,639 INFO L226 Difference]: Without dead ends: 6206 [2021-11-06 18:31:37,646 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6206 states. [2021-11-06 18:31:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6206 to 6046. [2021-11-06 18:31:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6046 states, 5980 states have (on average 1.2911371237458193) internal successors, (7721), 6045 states have internal predecessors, (7721), 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) [2021-11-06 18:31:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6046 states to 6046 states and 7721 transitions. [2021-11-06 18:31:37,760 INFO L78 Accepts]: Start accepts. Automaton has 6046 states and 7721 transitions. Word has length 73 [2021-11-06 18:31:37,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:37,762 INFO L470 AbstractCegarLoop]: Abstraction has 6046 states and 7721 transitions. [2021-11-06 18:31:37,762 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) [2021-11-06 18:31:37,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6046 states and 7721 transitions. [2021-11-06 18:31:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-06 18:31:37,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:37,768 INFO L513 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] [2021-11-06 18:31:37,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:31:37,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:37,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:37,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1304334253, now seen corresponding path program 1 times [2021-11-06 18:31:37,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:37,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944349098] [2021-11-06 18:31:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:37,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:38,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:38,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944349098] [2021-11-06 18:31:38,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944349098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:38,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:38,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:38,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654496665] [2021-11-06 18:31:38,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:38,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:38,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:38,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:38,025 INFO L87 Difference]: Start difference. First operand 6046 states and 7721 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:31:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:40,657 INFO L93 Difference]: Finished difference Result 13119 states and 16767 transitions. [2021-11-06 18:31:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:40,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-06 18:31:40,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:40,678 INFO L225 Difference]: With dead ends: 13119 [2021-11-06 18:31:40,678 INFO L226 Difference]: Without dead ends: 7229 [2021-11-06 18:31:40,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:40,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2021-11-06 18:31:40,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 7171. [2021-11-06 18:31:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7171 states, 7105 states have (on average 1.29247009148487) internal successors, (9183), 7170 states have internal predecessors, (9183), 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) [2021-11-06 18:31:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7171 states to 7171 states and 9183 transitions. [2021-11-06 18:31:40,826 INFO L78 Accepts]: Start accepts. Automaton has 7171 states and 9183 transitions. Word has length 75 [2021-11-06 18:31:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:40,827 INFO L470 AbstractCegarLoop]: Abstraction has 7171 states and 9183 transitions. [2021-11-06 18:31:40,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:31:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7171 states and 9183 transitions. [2021-11-06 18:31:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 18:31:40,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:40,829 INFO L513 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] [2021-11-06 18:31:40,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:31:40,830 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:40,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:40,831 INFO L85 PathProgramCache]: Analyzing trace with hash -181662950, now seen corresponding path program 1 times [2021-11-06 18:31:40,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:40,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240150666] [2021-11-06 18:31:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:40,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:41,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:41,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240150666] [2021-11-06 18:31:41,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240150666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:41,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:41,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:41,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308118788] [2021-11-06 18:31:41,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:41,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:41,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:41,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:41,073 INFO L87 Difference]: Start difference. First operand 7171 states and 9183 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-06 18:31:43,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:43,755 INFO L93 Difference]: Finished difference Result 17367 states and 22307 transitions. [2021-11-06 18:31:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:43,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-06 18:31:43,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:43,792 INFO L225 Difference]: With dead ends: 17367 [2021-11-06 18:31:43,792 INFO L226 Difference]: Without dead ends: 10352 [2021-11-06 18:31:43,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:43,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10352 states. [2021-11-06 18:31:43,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10352 to 10180. [2021-11-06 18:31:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10180 states, 10114 states have (on average 1.2961241842989915) internal successors, (13109), 10179 states have internal predecessors, (13109), 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) [2021-11-06 18:31:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10180 states to 10180 states and 13109 transitions. [2021-11-06 18:31:44,010 INFO L78 Accepts]: Start accepts. Automaton has 10180 states and 13109 transitions. Word has length 78 [2021-11-06 18:31:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:44,011 INFO L470 AbstractCegarLoop]: Abstraction has 10180 states and 13109 transitions. [2021-11-06 18:31:44,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-06 18:31:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 10180 states and 13109 transitions. [2021-11-06 18:31:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-06 18:31:44,013 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:44,013 INFO L513 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] [2021-11-06 18:31:44,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:31:44,014 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:44,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash -911664211, now seen corresponding path program 1 times [2021-11-06 18:31:44,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:44,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410254375] [2021-11-06 18:31:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:44,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:44,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:44,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410254375] [2021-11-06 18:31:44,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410254375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:44,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:44,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:44,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434550271] [2021-11-06 18:31:44,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:44,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:44,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:44,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:44,266 INFO L87 Difference]: Start difference. First operand 10180 states and 13109 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:31:46,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:46,888 INFO L93 Difference]: Finished difference Result 27410 states and 35347 transitions. [2021-11-06 18:31:46,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:46,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-06 18:31:46,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:46,929 INFO L225 Difference]: With dead ends: 27410 [2021-11-06 18:31:46,929 INFO L226 Difference]: Without dead ends: 17386 [2021-11-06 18:31:46,949 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17386 states. [2021-11-06 18:31:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17386 to 17174. [2021-11-06 18:31:47,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17174 states, 17108 states have (on average 1.297580079494973) internal successors, (22199), 17173 states have internal predecessors, (22199), 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) [2021-11-06 18:31:47,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17174 states to 17174 states and 22199 transitions. [2021-11-06 18:31:47,309 INFO L78 Accepts]: Start accepts. Automaton has 17174 states and 22199 transitions. Word has length 79 [2021-11-06 18:31:47,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:47,313 INFO L470 AbstractCegarLoop]: Abstraction has 17174 states and 22199 transitions. [2021-11-06 18:31:47,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:31:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 17174 states and 22199 transitions. [2021-11-06 18:31:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 18:31:47,318 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:47,318 INFO L513 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] [2021-11-06 18:31:47,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:31:47,319 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:47,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:47,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1230006174, now seen corresponding path program 1 times [2021-11-06 18:31:47,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:47,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248085592] [2021-11-06 18:31:47,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:47,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:47,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:47,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248085592] [2021-11-06 18:31:47,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248085592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:47,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:47,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:47,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723334784] [2021-11-06 18:31:47,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:47,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:47,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:47,573 INFO L87 Difference]: Start difference. First operand 17174 states and 22199 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-06 18:31:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:50,337 INFO L93 Difference]: Finished difference Result 47256 states and 61035 transitions. [2021-11-06 18:31:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:50,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-06 18:31:50,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:50,392 INFO L225 Difference]: With dead ends: 47256 [2021-11-06 18:31:50,392 INFO L226 Difference]: Without dead ends: 30238 [2021-11-06 18:31:50,417 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30238 states. [2021-11-06 18:31:50,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30238 to 30010. [2021-11-06 18:31:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30010 states, 29944 states have (on average 1.2937817258883249) internal successors, (38741), 30009 states have internal predecessors, (38741), 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) [2021-11-06 18:31:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30010 states to 30010 states and 38741 transitions. [2021-11-06 18:31:51,027 INFO L78 Accepts]: Start accepts. Automaton has 30010 states and 38741 transitions. Word has length 80 [2021-11-06 18:31:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:51,027 INFO L470 AbstractCegarLoop]: Abstraction has 30010 states and 38741 transitions. [2021-11-06 18:31:51,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-06 18:31:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 30010 states and 38741 transitions. [2021-11-06 18:31:51,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-06 18:31:51,028 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:51,029 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:31:51,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:31:51,029 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 697993521, now seen corresponding path program 1 times [2021-11-06 18:31:51,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:51,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356028414] [2021-11-06 18:31:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:51,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:51,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:51,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:51,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356028414] [2021-11-06 18:31:51,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356028414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:51,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:51,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:51,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375421458] [2021-11-06 18:31:51,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:51,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:51,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:51,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:51,276 INFO L87 Difference]: Start difference. First operand 30010 states and 38741 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-06 18:31:54,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:54,373 INFO L93 Difference]: Finished difference Result 87746 states and 113409 transitions. [2021-11-06 18:31:54,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2021-11-06 18:31:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:54,608 INFO L225 Difference]: With dead ends: 87746 [2021-11-06 18:31:54,608 INFO L226 Difference]: Without dead ends: 57892 [2021-11-06 18:31:54,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57892 states. [2021-11-06 18:31:55,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57892 to 57628. [2021-11-06 18:31:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57628 states, 57562 states have (on average 1.294812549946145) internal successors, (74532), 57627 states have internal predecessors, (74532), 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) [2021-11-06 18:31:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57628 states to 57628 states and 74532 transitions. [2021-11-06 18:31:55,982 INFO L78 Accepts]: Start accepts. Automaton has 57628 states and 74532 transitions. Word has length 95 [2021-11-06 18:31:55,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:55,983 INFO L470 AbstractCegarLoop]: Abstraction has 57628 states and 74532 transitions. [2021-11-06 18:31:55,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-06 18:31:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 57628 states and 74532 transitions. [2021-11-06 18:31:55,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-06 18:31:55,985 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:55,985 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:31:55,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:31:55,985 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:31:55,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2002323868, now seen corresponding path program 1 times [2021-11-06 18:31:55,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:55,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226812021] [2021-11-06 18:31:55,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:55,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:56,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:56,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226812021] [2021-11-06 18:31:56,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226812021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:56,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:56,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:56,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074946516] [2021-11-06 18:31:56,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:56,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:56,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:56,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:56,233 INFO L87 Difference]: Start difference. First operand 57628 states and 74532 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-06 18:32:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:00,171 INFO L93 Difference]: Finished difference Result 170194 states and 220529 transitions. [2021-11-06 18:32:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:32:00,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2021-11-06 18:32:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:00,414 INFO L225 Difference]: With dead ends: 170194 [2021-11-06 18:32:00,414 INFO L226 Difference]: Without dead ends: 112802 [2021-11-06 18:32:00,490 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:32:00,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112802 states. [2021-11-06 18:32:02,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112802 to 112700. [2021-11-06 18:32:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112700 states, 112634 states have (on average 1.2941385372090133) internal successors, (145764), 112699 states have internal predecessors, (145764), 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) [2021-11-06 18:32:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112700 states to 112700 states and 145764 transitions. [2021-11-06 18:32:02,881 INFO L78 Accepts]: Start accepts. Automaton has 112700 states and 145764 transitions. Word has length 107 [2021-11-06 18:32:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:02,881 INFO L470 AbstractCegarLoop]: Abstraction has 112700 states and 145764 transitions. [2021-11-06 18:32:02,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-06 18:32:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 112700 states and 145764 transitions. [2021-11-06 18:32:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-06 18:32:02,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:02,883 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:02,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:32:02,883 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:32:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1012779750, now seen corresponding path program 1 times [2021-11-06 18:32:02,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:02,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55299011] [2021-11-06 18:32:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:02,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:03,293 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:32:03,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:03,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55299011] [2021-11-06 18:32:03,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55299011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:03,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:03,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:32:03,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524953081] [2021-11-06 18:32:03,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:32:03,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:03,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:32:03,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:32:03,294 INFO L87 Difference]: Start difference. First operand 112700 states and 145764 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-06 18:32:08,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:08,240 INFO L93 Difference]: Finished difference Result 280402 states and 363121 transitions. [2021-11-06 18:32:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:32:08,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2021-11-06 18:32:08,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:08,716 INFO L225 Difference]: With dead ends: 280402 [2021-11-06 18:32:08,716 INFO L226 Difference]: Without dead ends: 167938 [2021-11-06 18:32:08,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:32:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167938 states. [2021-11-06 18:32:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167938 to 167269. [2021-11-06 18:32:12,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167269 states, 167203 states have (on average 1.294791361399018) internal successors, (216493), 167268 states have internal predecessors, (216493), 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) [2021-11-06 18:32:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167269 states to 167269 states and 216493 transitions. [2021-11-06 18:32:12,603 INFO L78 Accepts]: Start accepts. Automaton has 167269 states and 216493 transitions. Word has length 107 [2021-11-06 18:32:12,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:12,603 INFO L470 AbstractCegarLoop]: Abstraction has 167269 states and 216493 transitions. [2021-11-06 18:32:12,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-06 18:32:12,603 INFO L276 IsEmpty]: Start isEmpty. Operand 167269 states and 216493 transitions. [2021-11-06 18:32:12,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-06 18:32:12,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:12,605 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:12,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 18:32:12,605 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:32:12,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:12,605 INFO L85 PathProgramCache]: Analyzing trace with hash -649456874, now seen corresponding path program 1 times [2021-11-06 18:32:12,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:12,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476761529] [2021-11-06 18:32:12,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:12,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 18:32:13,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:13,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476761529] [2021-11-06 18:32:13,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476761529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:13,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:13,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:32:13,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286722406] [2021-11-06 18:32:13,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:32:13,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:13,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:32:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:32:13,138 INFO L87 Difference]: Start difference. First operand 167269 states and 216493 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2021-11-06 18:32:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:16,033 INFO L93 Difference]: Finished difference Result 167269 states and 216493 transitions. [2021-11-06 18:32:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:32:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 110 [2021-11-06 18:32:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:16,370 INFO L225 Difference]: With dead ends: 167269 [2021-11-06 18:32:16,370 INFO L226 Difference]: Without dead ends: 167263 [2021-11-06 18:32:16,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:32:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167263 states. [2021-11-06 18:32:19,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167263 to 167263. [2021-11-06 18:32:19,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167263 states, 167200 states have (on average 1.2947787081339712) internal successors, (216487), 167262 states have internal predecessors, (216487), 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) [2021-11-06 18:32:20,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167263 states to 167263 states and 216487 transitions. [2021-11-06 18:32:20,118 INFO L78 Accepts]: Start accepts. Automaton has 167263 states and 216487 transitions. Word has length 110 [2021-11-06 18:32:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:20,118 INFO L470 AbstractCegarLoop]: Abstraction has 167263 states and 216487 transitions. [2021-11-06 18:32:20,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2021-11-06 18:32:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 167263 states and 216487 transitions. [2021-11-06 18:32:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-06 18:32:20,364 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:20,365 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:20,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 18:32:20,365 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-06 18:32:20,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:20,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1357645287, now seen corresponding path program 1 times [2021-11-06 18:32:20,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:20,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702289415] [2021-11-06 18:32:20,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:20,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 18:32:20,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:20,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702289415] [2021-11-06 18:32:20,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702289415] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:20,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:20,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:32:20,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561825438] [2021-11-06 18:32:20,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:32:20,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:20,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:32:20,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:32:20,781 INFO L87 Difference]: Start difference. First operand 167263 states and 216487 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2021-11-06 18:32:23,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:23,470 INFO L93 Difference]: Finished difference Result 167263 states and 216487 transitions. [2021-11-06 18:32:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:32:23,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 112 [2021-11-06 18:32:23,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:23,797 INFO L225 Difference]: With dead ends: 167263 [2021-11-06 18:32:23,798 INFO L226 Difference]: Without dead ends: 167257 [2021-11-06 18:32:23,846 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:32:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167257 states. [2021-11-06 18:32:27,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167257 to 167257. [2021-11-06 18:32:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167257 states, 167197 states have (on average 1.294766054414852) internal successors, (216481), 167256 states have internal predecessors, (216481), 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)