./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.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 f2c7848ca043d8b9ca4f9ab4b1ce08f583c2bd8d8967a557df683af547558d91 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:35:56,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:35:56,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:35:56,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:35:56,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:35:56,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:35:56,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:35:56,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:35:56,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:35:56,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:35:56,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:35:56,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:35:56,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:35:56,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:35:56,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:35:56,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:35:56,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:35:56,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:35:56,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:35:56,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:35:56,949 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:35:56,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:35:56,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:35:56,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:35:56,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:35:56,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:35:56,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:35:56,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:35:56,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:35:56,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:35:56,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:35:56,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:35:56,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:35:56,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:35:56,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:35:56,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:35:56,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:35:56,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:35:56,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:35:56,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:35:56,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:35:56,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:35:56,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:35:56,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:35:56,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:35:56,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:35:56,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:35:56,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:35:56,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:35:56,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:35:56,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:35:56,985 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:35:56,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:35:56,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:35:56,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:35:56,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:35:56,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:35:56,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:35:56,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:35:56,987 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:35:56,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:35:56,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:35:56,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:35:56,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:35:56,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:35:56,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:35:56,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:35:56,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:35:56,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:35:56,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:35:56,989 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:35:56,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:35:56,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:35:56,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2c7848ca043d8b9ca4f9ab4b1ce08f583c2bd8d8967a557df683af547558d91 [2022-07-14 00:35:57,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:35:57,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:35:57,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:35:57,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:35:57,216 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:35:57,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-07-14 00:35:57,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672c164fd/c4597b7b52044dcc918d6000b0cbaa25/FLAG64234c0d9 [2022-07-14 00:35:57,881 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:35:57,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-07-14 00:35:57,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672c164fd/c4597b7b52044dcc918d6000b0cbaa25/FLAG64234c0d9 [2022-07-14 00:35:58,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672c164fd/c4597b7b52044dcc918d6000b0cbaa25 [2022-07-14 00:35:58,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:35:58,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:35:58,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:35:58,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:35:58,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:35:58,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:35:58" (1/1) ... [2022-07-14 00:35:58,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0149d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:58, skipping insertion in model container [2022-07-14 00:35:58,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:35:58" (1/1) ... [2022-07-14 00:35:58,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:35:58,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:35:58,737 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-07-14 00:35:58,737 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-07-14 00:35:58,927 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-07-14 00:35:59,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:35:59,668 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:35:59,740 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-07-14 00:35:59,741 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-07-14 00:35:59,750 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-07-14 00:35:59,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:35:59,991 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:35:59,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59 WrapperNode [2022-07-14 00:35:59,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:35:59,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:35:59,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:35:59,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:35:59,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,194 INFO L137 Inliner]: procedures = 199, calls = 1517, calls flagged for inlining = 95, calls inlined = 93, statements flattened = 3890 [2022-07-14 00:36:00,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:36:00,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:36:00,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:36:00,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:36:00,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:36:00,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:36:00,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:36:00,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:36:00,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (1/1) ... [2022-07-14 00:36:00,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:36:00,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:36:00,494 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) [2022-07-14 00:36:00,500 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 [2022-07-14 00:36:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2022-07-14 00:36:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2022-07-14 00:36:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2022-07-14 00:36:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2022-07-14 00:36:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 00:36:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 00:36:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:36:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:36:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:36:00,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:36:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2022-07-14 00:36:00,522 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2022-07-14 00:36:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 00:36:00,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 00:36:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2022-07-14 00:36:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2022-07-14 00:36:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-07-14 00:36:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-07-14 00:36:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:36:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:36:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-07-14 00:36:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-07-14 00:36:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-07-14 00:36:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-07-14 00:36:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2022-07-14 00:36:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2022-07-14 00:36:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-07-14 00:36:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-07-14 00:36:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2022-07-14 00:36:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2022-07-14 00:36:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-07-14 00:36:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-07-14 00:36:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 00:36:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 00:36:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2022-07-14 00:36:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2022-07-14 00:36:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:36:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:36:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:36:00,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:36:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2022-07-14 00:36:00,526 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2022-07-14 00:36:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:36:00,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:36:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2022-07-14 00:36:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2022-07-14 00:36:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2022-07-14 00:36:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2022-07-14 00:36:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:36:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:36:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 00:36:00,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 00:36:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2022-07-14 00:36:00,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2022-07-14 00:36:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2022-07-14 00:36:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2022-07-14 00:36:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 00:36:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 00:36:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2022-07-14 00:36:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2022-07-14 00:36:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:36:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:36:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:36:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:36:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:36:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:36:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-14 00:36:00,531 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-14 00:36:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-14 00:36:00,531 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-14 00:36:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:36:00,531 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:36:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2022-07-14 00:36:00,532 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2022-07-14 00:36:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:36:00,532 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:36:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:36:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2022-07-14 00:36:00,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2022-07-14 00:36:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:36:00,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:36:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-14 00:36:00,533 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-14 00:36:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2022-07-14 00:36:00,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2022-07-14 00:36:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:36:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:36:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2022-07-14 00:36:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2022-07-14 00:36:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2022-07-14 00:36:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2022-07-14 00:36:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2022-07-14 00:36:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2022-07-14 00:36:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2022-07-14 00:36:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2022-07-14 00:36:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:36:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:36:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:36:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 00:36:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 00:36:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-14 00:36:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-14 00:36:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:36:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:36:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2022-07-14 00:36:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2022-07-14 00:36:00,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:36:00,537 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2022-07-14 00:36:00,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2022-07-14 00:36:00,537 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2022-07-14 00:36:00,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2022-07-14 00:36:00,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:36:00,537 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-07-14 00:36:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-07-14 00:36:00,538 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 00:36:00,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 00:36:00,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:36:00,540 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:36:00,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 00:36:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 00:36:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-14 00:36:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-14 00:36:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-14 00:36:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-14 00:36:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2022-07-14 00:36:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2022-07-14 00:36:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2022-07-14 00:36:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2022-07-14 00:36:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:36:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-14 00:36:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-14 00:36:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2022-07-14 00:36:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2022-07-14 00:36:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:36:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:36:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-07-14 00:36:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-07-14 00:36:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:36:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:36:00,985 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:36:00,987 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:36:01,553 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:36:12,855 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:36:12,865 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:36:12,866 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:36:12,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:36:12 BoogieIcfgContainer [2022-07-14 00:36:12,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:36:12,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:36:12,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:36:12,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:36:12,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:35:58" (1/3) ... [2022-07-14 00:36:12,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51427fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:36:12, skipping insertion in model container [2022-07-14 00:36:12,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:35:59" (2/3) ... [2022-07-14 00:36:12,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51427fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:36:12, skipping insertion in model container [2022-07-14 00:36:12,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:36:12" (3/3) ... [2022-07-14 00:36:12,874 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-07-14 00:36:12,884 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:36:12,884 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:36:12,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:36:12,936 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@412e735a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c73e8be [2022-07-14 00:36:12,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:36:12,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 1364 states, 973 states have (on average 1.433710174717369) internal successors, (1395), 1004 states have internal predecessors, (1395), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) [2022-07-14 00:36:12,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 00:36:12,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:12,975 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:12,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:12,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:12,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1655239035, now seen corresponding path program 1 times [2022-07-14 00:36:12,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:12,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416467975] [2022-07-14 00:36:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:12,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-14 00:36:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-14 00:36:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:36:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 00:36:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-14 00:36:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 00:36:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 00:36:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:36:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 00:36:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 00:36:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:36:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:36:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:36:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 00:36:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:36:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 00:36:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-14 00:36:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-14 00:36:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-14 00:36:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:36:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:36:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-14 00:36:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:13,695 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-07-14 00:36:13,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:13,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416467975] [2022-07-14 00:36:13,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416467975] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:13,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:13,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:36:13,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783746800] [2022-07-14 00:36:13,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:13,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:36:13,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:36:13,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:36:13,732 INFO L87 Difference]: Start difference. First operand has 1364 states, 973 states have (on average 1.433710174717369) internal successors, (1395), 1004 states have internal predecessors, (1395), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 00:36:16,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:19,646 INFO L93 Difference]: Finished difference Result 3992 states and 6172 transitions. [2022-07-14 00:36:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:36:19,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 189 [2022-07-14 00:36:19,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:19,687 INFO L225 Difference]: With dead ends: 3992 [2022-07-14 00:36:19,687 INFO L226 Difference]: Without dead ends: 2592 [2022-07-14 00:36:19,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:36:19,704 INFO L413 NwaCegarLoop]: 2113 mSDtfsCounter, 2054 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 821 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:19,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 4363 Invalid, 2421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 1599 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-14 00:36:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2022-07-14 00:36:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 2426. [2022-07-14 00:36:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 1745 states have (on average 1.4) internal successors, (2443), 1785 states have internal predecessors, (2443), 568 states have call successors, (568), 113 states have call predecessors, (568), 112 states have return successors, (567), 563 states have call predecessors, (567), 567 states have call successors, (567) [2022-07-14 00:36:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3578 transitions. [2022-07-14 00:36:19,903 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3578 transitions. Word has length 189 [2022-07-14 00:36:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:19,904 INFO L495 AbstractCegarLoop]: Abstraction has 2426 states and 3578 transitions. [2022-07-14 00:36:19,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 00:36:19,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3578 transitions. [2022-07-14 00:36:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-14 00:36:19,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:19,926 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:19,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:36:19,927 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:19,927 INFO L85 PathProgramCache]: Analyzing trace with hash -48267231, now seen corresponding path program 1 times [2022-07-14 00:36:19,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:19,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648375984] [2022-07-14 00:36:19,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:19,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 00:36:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:36:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-14 00:36:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:36:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 00:36:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 00:36:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 00:36:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 00:36:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-14 00:36:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:36:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 00:36:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 00:36:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:36:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 00:36:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-14 00:36:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 00:36:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:36:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:36:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-14 00:36:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:36:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 00:36:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-14 00:36:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:36:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 00:36:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-14 00:36:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:36:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:36:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-14 00:36:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-07-14 00:36:20,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:20,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648375984] [2022-07-14 00:36:20,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648375984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:20,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:20,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:36:20,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199961451] [2022-07-14 00:36:20,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:20,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:36:20,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:36:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:36:20,279 INFO L87 Difference]: Start difference. First operand 2426 states and 3578 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 00:36:22,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:22,897 INFO L93 Difference]: Finished difference Result 5012 states and 7542 transitions. [2022-07-14 00:36:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:36:22,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 249 [2022-07-14 00:36:22,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:22,914 INFO L225 Difference]: With dead ends: 5012 [2022-07-14 00:36:22,914 INFO L226 Difference]: Without dead ends: 2606 [2022-07-14 00:36:22,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:36:22,926 INFO L413 NwaCegarLoop]: 1865 mSDtfsCounter, 688 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 5325 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 754 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:22,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 5325 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [754 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-14 00:36:22,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-07-14 00:36:22,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2428. [2022-07-14 00:36:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1747 states have (on average 1.3961076130509444) internal successors, (2439), 1787 states have internal predecessors, (2439), 568 states have call successors, (568), 113 states have call predecessors, (568), 112 states have return successors, (567), 563 states have call predecessors, (567), 567 states have call successors, (567) [2022-07-14 00:36:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3574 transitions. [2022-07-14 00:36:23,000 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3574 transitions. Word has length 249 [2022-07-14 00:36:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:23,001 INFO L495 AbstractCegarLoop]: Abstraction has 2428 states and 3574 transitions. [2022-07-14 00:36:23,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 00:36:23,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3574 transitions. [2022-07-14 00:36:23,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-14 00:36:23,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:23,013 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:23,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:36:23,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:23,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:23,014 INFO L85 PathProgramCache]: Analyzing trace with hash 135770125, now seen corresponding path program 1 times [2022-07-14 00:36:23,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:23,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234960045] [2022-07-14 00:36:23,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:23,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:36:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-14 00:36:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:36:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 00:36:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:36:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:36:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-14 00:36:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:36:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:36:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 00:36:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:36:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 00:36:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 00:36:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 00:36:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 00:36:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:36:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-14 00:36:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:36:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 00:36:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 00:36:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:36:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 00:36:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-14 00:36:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-14 00:36:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-14 00:36:23,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:23,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234960045] [2022-07-14 00:36:23,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234960045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:23,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:23,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:36:23,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242699588] [2022-07-14 00:36:23,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:23,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:36:23,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:23,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:36:23,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:36:23,354 INFO L87 Difference]: Start difference. First operand 2428 states and 3574 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:36:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:25,584 INFO L93 Difference]: Finished difference Result 5006 states and 7443 transitions. [2022-07-14 00:36:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:36:25,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 258 [2022-07-14 00:36:25,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:25,610 INFO L225 Difference]: With dead ends: 5006 [2022-07-14 00:36:25,611 INFO L226 Difference]: Without dead ends: 2598 [2022-07-14 00:36:25,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:36:25,620 INFO L413 NwaCegarLoop]: 1850 mSDtfsCounter, 709 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:25,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 4059 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 00:36:25,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-07-14 00:36:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2430. [2022-07-14 00:36:25,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 1749 states have (on average 1.3956546598056032) internal successors, (2441), 1789 states have internal predecessors, (2441), 568 states have call successors, (568), 113 states have call predecessors, (568), 112 states have return successors, (567), 563 states have call predecessors, (567), 567 states have call successors, (567) [2022-07-14 00:36:25,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3576 transitions. [2022-07-14 00:36:25,689 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3576 transitions. Word has length 258 [2022-07-14 00:36:25,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:25,689 INFO L495 AbstractCegarLoop]: Abstraction has 2430 states and 3576 transitions. [2022-07-14 00:36:25,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:36:25,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3576 transitions. [2022-07-14 00:36:25,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-14 00:36:25,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:25,701 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:25,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:36:25,701 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:25,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:25,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1210815279, now seen corresponding path program 1 times [2022-07-14 00:36:25,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:25,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933906682] [2022-07-14 00:36:25,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:25,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:36:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:36:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:36:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 00:36:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:36:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:36:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:36:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 00:36:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 00:36:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 00:36:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:36:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 00:36:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 00:36:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 00:36:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-14 00:36:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:36:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 00:36:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-14 00:36:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:36:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-14 00:36:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 00:36:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:36:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-14 00:36:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:26,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-14 00:36:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-14 00:36:26,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:26,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933906682] [2022-07-14 00:36:26,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933906682] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:36:26,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796083977] [2022-07-14 00:36:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:26,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:26,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:36:26,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:36:26,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:36:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:26,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:36:26,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-07-14 00:36:27,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:36:27,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796083977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:27,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:36:27,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-07-14 00:36:27,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569249542] [2022-07-14 00:36:27,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:27,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:36:27,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:27,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:36:27,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:36:27,204 INFO L87 Difference]: Start difference. First operand 2430 states and 3576 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-14 00:36:27,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:27,304 INFO L93 Difference]: Finished difference Result 3921 states and 5857 transitions. [2022-07-14 00:36:27,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:36:27,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 260 [2022-07-14 00:36:27,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:27,324 INFO L225 Difference]: With dead ends: 3921 [2022-07-14 00:36:27,324 INFO L226 Difference]: Without dead ends: 3918 [2022-07-14 00:36:27,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:36:27,327 INFO L413 NwaCegarLoop]: 2244 mSDtfsCounter, 1237 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:27,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 4126 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:36:27,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2022-07-14 00:36:27,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3840. [2022-07-14 00:36:27,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3840 states, 2800 states have (on average 1.4103571428571429) internal successors, (3949), 2852 states have internal predecessors, (3949), 850 states have call successors, (850), 190 states have call predecessors, (850), 189 states have return successors, (917), 838 states have call predecessors, (917), 849 states have call successors, (917) [2022-07-14 00:36:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 5716 transitions. [2022-07-14 00:36:27,434 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 5716 transitions. Word has length 260 [2022-07-14 00:36:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:27,435 INFO L495 AbstractCegarLoop]: Abstraction has 3840 states and 5716 transitions. [2022-07-14 00:36:27,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-14 00:36:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 5716 transitions. [2022-07-14 00:36:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-14 00:36:27,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:27,453 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:27,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:36:27,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:27,668 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1437766789, now seen corresponding path program 1 times [2022-07-14 00:36:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:27,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306417891] [2022-07-14 00:36:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:36:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:36:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:36:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 00:36:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:36:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:36:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:36:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-14 00:36:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 00:36:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 00:36:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:36:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-14 00:36:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:36:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:36:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:36:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:36:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 00:36:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 00:36:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 00:36:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:36:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-14 00:36:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 00:36:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 00:36:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-14 00:36:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:36:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-14 00:36:27,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:27,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306417891] [2022-07-14 00:36:27,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306417891] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:36:27,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610064610] [2022-07-14 00:36:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:27,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:27,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:36:27,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:36:27,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:36:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:28,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 3164 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:36:28,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-07-14 00:36:28,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:36:28,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610064610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:28,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:36:28,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 00:36:28,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860988496] [2022-07-14 00:36:28,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:28,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:36:28,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:28,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:36:28,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:36:28,901 INFO L87 Difference]: Start difference. First operand 3840 states and 5716 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-14 00:36:29,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:29,141 INFO L93 Difference]: Finished difference Result 11304 states and 16824 transitions. [2022-07-14 00:36:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:36:29,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 295 [2022-07-14 00:36:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:29,181 INFO L225 Difference]: With dead ends: 11304 [2022-07-14 00:36:29,181 INFO L226 Difference]: Without dead ends: 7484 [2022-07-14 00:36:29,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:36:29,198 INFO L413 NwaCegarLoop]: 2338 mSDtfsCounter, 1901 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 4203 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:29,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 4203 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:36:29,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7484 states. [2022-07-14 00:36:29,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7484 to 7477. [2022-07-14 00:36:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7477 states, 5467 states have (on average 1.4124748490945673) internal successors, (7722), 5573 states have internal predecessors, (7722), 1632 states have call successors, (1632), 378 states have call predecessors, (1632), 377 states have return successors, (1755), 1607 states have call predecessors, (1755), 1631 states have call successors, (1755) [2022-07-14 00:36:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7477 states to 7477 states and 11109 transitions. [2022-07-14 00:36:29,443 INFO L78 Accepts]: Start accepts. Automaton has 7477 states and 11109 transitions. Word has length 295 [2022-07-14 00:36:29,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:29,444 INFO L495 AbstractCegarLoop]: Abstraction has 7477 states and 11109 transitions. [2022-07-14 00:36:29,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-14 00:36:29,445 INFO L276 IsEmpty]: Start isEmpty. Operand 7477 states and 11109 transitions. [2022-07-14 00:36:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-14 00:36:29,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:29,481 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:29,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:36:29,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:29,696 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:29,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:29,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1823543101, now seen corresponding path program 1 times [2022-07-14 00:36:29,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:29,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326338173] [2022-07-14 00:36:29,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:29,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:36:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:36:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:36:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 00:36:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:36:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:36:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 00:36:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-14 00:36:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 00:36:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 00:36:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:36:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-14 00:36:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:36:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:36:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:36:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:36:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 00:36:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 00:36:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 00:36:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:36:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-14 00:36:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 00:36:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 00:36:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-14 00:36:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:30,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:36:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-14 00:36:30,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:30,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326338173] [2022-07-14 00:36:30,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326338173] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:36:30,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405879981] [2022-07-14 00:36:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:30,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:30,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:36:30,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:36:30,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:36:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:30,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 3164 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:36:30,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 73 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-14 00:36:30,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:36:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-14 00:36:31,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405879981] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:36:31,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:36:31,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-14 00:36:31,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778669024] [2022-07-14 00:36:31,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:36:31,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:36:31,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:31,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:36:31,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:36:31,088 INFO L87 Difference]: Start difference. First operand 7477 states and 11109 transitions. Second operand has 11 states, 11 states have (on average 18.90909090909091) internal successors, (208), 7 states have internal predecessors, (208), 2 states have call successors, (79), 6 states have call predecessors, (79), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-07-14 00:36:34,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:37,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:37,756 INFO L93 Difference]: Finished difference Result 15644 states and 23540 transitions. [2022-07-14 00:36:37,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 00:36:37,757 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.90909090909091) internal successors, (208), 7 states have internal predecessors, (208), 2 states have call successors, (79), 6 states have call predecessors, (79), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 295 [2022-07-14 00:36:37,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:37,814 INFO L225 Difference]: With dead ends: 15644 [2022-07-14 00:36:37,815 INFO L226 Difference]: Without dead ends: 8187 [2022-07-14 00:36:37,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:36:37,845 INFO L413 NwaCegarLoop]: 1838 mSDtfsCounter, 1113 mSDsluCounter, 5055 mSDsCounter, 0 mSdLazyCounter, 3326 mSolverCounterSat, 1242 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 6893 SdHoareTripleChecker+Invalid, 4569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 3326 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:37,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 6893 Invalid, 4569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1242 Valid, 3326 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-14 00:36:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8187 states. [2022-07-14 00:36:38,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8187 to 7649. [2022-07-14 00:36:38,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 5599 states have (on average 1.4063225575995713) internal successors, (7874), 5725 states have internal predecessors, (7874), 1636 states have call successors, (1636), 378 states have call predecessors, (1636), 413 states have return successors, (1883), 1627 states have call predecessors, (1883), 1635 states have call successors, (1883) [2022-07-14 00:36:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 11393 transitions. [2022-07-14 00:36:38,169 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 11393 transitions. Word has length 295 [2022-07-14 00:36:38,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:38,170 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 11393 transitions. [2022-07-14 00:36:38,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.90909090909091) internal successors, (208), 7 states have internal predecessors, (208), 2 states have call successors, (79), 6 states have call predecessors, (79), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-07-14 00:36:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 11393 transitions. [2022-07-14 00:36:38,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-14 00:36:38,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:38,203 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:38,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:36:38,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:38,424 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:38,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:38,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2054071439, now seen corresponding path program 2 times [2022-07-14 00:36:38,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:38,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155720545] [2022-07-14 00:36:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:38,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-14 00:36:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:36:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-14 00:36:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 00:36:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:36:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:36:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:36:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 00:36:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 00:36:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 00:36:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:36:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:36:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-14 00:36:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 00:36:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:36:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-14 00:36:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:36:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:36:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 00:36:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:36:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:36:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-14 00:36:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 00:36:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:36:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 00:36:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:38,735 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-07-14 00:36:38,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:38,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155720545] [2022-07-14 00:36:38,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155720545] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:36:38,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263829972] [2022-07-14 00:36:38,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:36:38,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:38,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:36:38,737 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:36:38,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:36:39,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:36:39,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:36:39,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1995 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:36:39,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2022-07-14 00:36:39,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:36:39,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263829972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:39,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:36:39,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-07-14 00:36:39,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828603020] [2022-07-14 00:36:39,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:39,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:36:39,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:39,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:36:39,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:36:39,595 INFO L87 Difference]: Start difference. First operand 7649 states and 11393 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-14 00:36:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:40,058 INFO L93 Difference]: Finished difference Result 26259 states and 39814 transitions. [2022-07-14 00:36:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:36:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 301 [2022-07-14 00:36:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:40,144 INFO L225 Difference]: With dead ends: 26259 [2022-07-14 00:36:40,144 INFO L226 Difference]: Without dead ends: 18630 [2022-07-14 00:36:40,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:36:40,182 INFO L413 NwaCegarLoop]: 3132 mSDtfsCounter, 2356 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 7666 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:40,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 7666 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:36:40,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18630 states. [2022-07-14 00:36:40,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18630 to 14529. [2022-07-14 00:36:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14529 states, 10683 states have (on average 1.40821866516896) internal successors, (15044), 10931 states have internal predecessors, (15044), 3032 states have call successors, (3032), 742 states have call predecessors, (3032), 813 states have return successors, (3527), 3013 states have call predecessors, (3527), 3031 states have call successors, (3527) [2022-07-14 00:36:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14529 states to 14529 states and 21603 transitions. [2022-07-14 00:36:40,785 INFO L78 Accepts]: Start accepts. Automaton has 14529 states and 21603 transitions. Word has length 301 [2022-07-14 00:36:40,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:40,786 INFO L495 AbstractCegarLoop]: Abstraction has 14529 states and 21603 transitions. [2022-07-14 00:36:40,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-14 00:36:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 14529 states and 21603 transitions. [2022-07-14 00:36:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-07-14 00:36:40,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:40,839 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:40,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:36:41,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:41,056 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash -422251246, now seen corresponding path program 1 times [2022-07-14 00:36:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:41,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825127123] [2022-07-14 00:36:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-14 00:36:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:36:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-14 00:36:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 00:36:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:36:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:36:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:36:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 00:36:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-14 00:36:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:36:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:36:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:36:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-14 00:36:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 00:36:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-14 00:36:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 00:36:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:36:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-14 00:36:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:36:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 00:36:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 00:36:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-14 00:36:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 00:36:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-14 00:36:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-14 00:36:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-07-14 00:36:41,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825127123] [2022-07-14 00:36:41,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825127123] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:36:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212074799] [2022-07-14 00:36:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:41,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:41,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:36:41,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:36:41,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 00:36:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:42,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 3313 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 00:36:42,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 73 proven. 16 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-14 00:36:42,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:36:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-14 00:36:42,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212074799] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:36:42,474 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:36:42,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2022-07-14 00:36:42,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039718838] [2022-07-14 00:36:42,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:36:42,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-14 00:36:42,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:42,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-14 00:36:42,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:36:42,476 INFO L87 Difference]: Start difference. First operand 14529 states and 21603 transitions. Second operand has 18 states, 18 states have (on average 12.666666666666666) internal successors, (228), 14 states have internal predecessors, (228), 2 states have call successors, (79), 6 states have call predecessors, (79), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-07-14 00:36:47,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:51,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:51,419 INFO L93 Difference]: Finished difference Result 31088 states and 46560 transitions. [2022-07-14 00:36:51,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-14 00:36:51,420 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.666666666666666) internal successors, (228), 14 states have internal predecessors, (228), 2 states have call successors, (79), 6 states have call predecessors, (79), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 303 [2022-07-14 00:36:51,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:51,477 INFO L225 Difference]: With dead ends: 31088 [2022-07-14 00:36:51,478 INFO L226 Difference]: Without dead ends: 16579 [2022-07-14 00:36:51,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2022-07-14 00:36:51,514 INFO L413 NwaCegarLoop]: 1820 mSDtfsCounter, 1200 mSDsluCounter, 9800 mSDsCounter, 0 mSdLazyCounter, 6696 mSolverCounterSat, 1316 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 11620 SdHoareTripleChecker+Invalid, 8013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1316 IncrementalHoareTripleChecker+Valid, 6696 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:51,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 11620 Invalid, 8013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1316 Valid, 6696 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-07-14 00:36:51,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16579 states. [2022-07-14 00:36:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16579 to 15121. [2022-07-14 00:36:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15121 states, 11275 states have (on average 1.3882039911308204) internal successors, (15652), 11523 states have internal predecessors, (15652), 3032 states have call successors, (3032), 742 states have call predecessors, (3032), 813 states have return successors, (3527), 3013 states have call predecessors, (3527), 3031 states have call successors, (3527) [2022-07-14 00:36:52,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15121 states to 15121 states and 22211 transitions. [2022-07-14 00:36:52,031 INFO L78 Accepts]: Start accepts. Automaton has 15121 states and 22211 transitions. Word has length 303 [2022-07-14 00:36:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:52,032 INFO L495 AbstractCegarLoop]: Abstraction has 15121 states and 22211 transitions. [2022-07-14 00:36:52,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.666666666666666) internal successors, (228), 14 states have internal predecessors, (228), 2 states have call successors, (79), 6 states have call predecessors, (79), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-07-14 00:36:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 15121 states and 22211 transitions. [2022-07-14 00:36:52,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-14 00:36:52,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:52,103 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:52,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:36:52,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:52,316 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:52,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:52,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1458786620, now seen corresponding path program 2 times [2022-07-14 00:36:52,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:52,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075558314] [2022-07-14 00:36:52,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:52,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:36:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 00:36:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:36:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:36:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:36:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-14 00:36:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 00:36:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-14 00:36:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-14 00:36:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 00:36:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:36:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:36:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-14 00:36:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 00:36:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:36:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:36:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 00:36:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-14 00:36:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:36:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 00:36:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-14 00:36:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-14 00:36:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-14 00:36:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-14 00:36:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:36:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-14 00:36:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-07-14 00:36:52,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:52,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075558314] [2022-07-14 00:36:52,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075558314] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:36:52,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345808599] [2022-07-14 00:36:52,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:36:52,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:36:52,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:36:52,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:36:52,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 00:36:54,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:36:54,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:36:54,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 2003 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-14 00:36:54,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:54,259 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-14 00:36:54,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 107 [2022-07-14 00:36:54,273 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-14 00:36:54,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 63 [2022-07-14 00:36:54,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-07-14 00:36:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-07-14 00:36:54,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:36:54,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345808599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:54,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:36:54,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-07-14 00:36:54,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939500241] [2022-07-14 00:36:54,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:54,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:36:54,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:54,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:36:54,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:36:54,338 INFO L87 Difference]: Start difference. First operand 15121 states and 22211 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-14 00:36:56,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:58,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:02,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:04,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:04,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:37:04,763 INFO L93 Difference]: Finished difference Result 23471 states and 34568 transitions. [2022-07-14 00:37:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:37:04,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 340 [2022-07-14 00:37:04,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:37:04,810 INFO L225 Difference]: With dead ends: 23471 [2022-07-14 00:37:04,811 INFO L226 Difference]: Without dead ends: 15530 [2022-07-14 00:37:04,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:37:04,837 INFO L413 NwaCegarLoop]: 2005 mSDtfsCounter, 65 mSDsluCounter, 5513 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 7518 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:37:04,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 7518 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 625 Invalid, 4 Unknown, 0 Unchecked, 10.0s Time] [2022-07-14 00:37:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15530 states. [2022-07-14 00:37:05,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15530 to 15137. [2022-07-14 00:37:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15137 states, 11291 states have (on average 1.3880081480825437) internal successors, (15672), 11539 states have internal predecessors, (15672), 3032 states have call successors, (3032), 742 states have call predecessors, (3032), 813 states have return successors, (3527), 3013 states have call predecessors, (3527), 3031 states have call successors, (3527) [2022-07-14 00:37:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15137 states to 15137 states and 22231 transitions. [2022-07-14 00:37:05,339 INFO L78 Accepts]: Start accepts. Automaton has 15137 states and 22231 transitions. Word has length 340 [2022-07-14 00:37:05,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:37:05,340 INFO L495 AbstractCegarLoop]: Abstraction has 15137 states and 22231 transitions. [2022-07-14 00:37:05,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-14 00:37:05,341 INFO L276 IsEmpty]: Start isEmpty. Operand 15137 states and 22231 transitions. [2022-07-14 00:37:05,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-07-14 00:37:05,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:37:05,390 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 12, 12, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:37:05,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:37:05,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:37:05,601 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:37:05,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:37:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash -86320798, now seen corresponding path program 1 times [2022-07-14 00:37:05,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:37:05,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694837272] [2022-07-14 00:37:05,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:05,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:37:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:37:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:37:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:37:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 00:37:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:37:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:37:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:37:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:37:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-14 00:37:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 00:37:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:37:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-14 00:37:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-14 00:37:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 00:37:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:37:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:37:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-14 00:37:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 00:37:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:37:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:37:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-14 00:37:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-14 00:37:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-14 00:37:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-14 00:37:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-14 00:37:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:37:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-14 00:37:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-14 00:37:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:37:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-14 00:37:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-14 00:37:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-14 00:37:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 00:37:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 00:37:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-14 00:37:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-14 00:37:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2022-07-14 00:37:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-14 00:37:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-14 00:37:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-14 00:37:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-07-14 00:37:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-14 00:37:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-14 00:37:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-07-14 00:37:06,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:37:06,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694837272] [2022-07-14 00:37:06,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694837272] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:37:06,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205173147] [2022-07-14 00:37:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:06,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:37:06,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:37:06,182 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:37:06,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 00:37:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:07,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 4486 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 00:37:07,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:37:07,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 298 proven. 100 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-07-14 00:37:07,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:37:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 234 proven. 100 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2022-07-14 00:37:07,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205173147] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:37:07,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:37:07,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 26 [2022-07-14 00:37:07,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315943013] [2022-07-14 00:37:07,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:37:07,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-14 00:37:07,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:37:07,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-14 00:37:07,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2022-07-14 00:37:07,702 INFO L87 Difference]: Start difference. First operand 15137 states and 22231 transitions. Second operand has 26 states, 26 states have (on average 11.346153846153847) internal successors, (295), 21 states have internal predecessors, (295), 2 states have call successors, (108), 6 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-07-14 00:37:12,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:14,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:23,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:37:23,854 INFO L93 Difference]: Finished difference Result 46418 states and 69640 transitions. [2022-07-14 00:37:23,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-07-14 00:37:23,854 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.346153846153847) internal successors, (295), 21 states have internal predecessors, (295), 2 states have call successors, (108), 6 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) Word has length 458 [2022-07-14 00:37:23,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:37:23,999 INFO L225 Difference]: With dead ends: 46418 [2022-07-14 00:37:23,999 INFO L226 Difference]: Without dead ends: 31301 [2022-07-14 00:37:24,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1021 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=584, Invalid=2722, Unknown=0, NotChecked=0, Total=3306 [2022-07-14 00:37:24,043 INFO L413 NwaCegarLoop]: 2315 mSDtfsCounter, 3269 mSDsluCounter, 12667 mSDsCounter, 0 mSdLazyCounter, 10319 mSolverCounterSat, 2008 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3598 SdHoareTripleChecker+Valid, 14982 SdHoareTripleChecker+Invalid, 12329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2008 IncrementalHoareTripleChecker+Valid, 10319 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:37:24,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3598 Valid, 14982 Invalid, 12329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2008 Valid, 10319 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-07-14 00:37:24,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31301 states. [2022-07-14 00:37:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31301 to 29100. [2022-07-14 00:37:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29100 states, 21647 states have (on average 1.3952048782741258) internal successors, (30202), 22107 states have internal predecessors, (30202), 5895 states have call successors, (5895), 1430 states have call predecessors, (5895), 1557 states have return successors, (6838), 5862 states have call predecessors, (6838), 5894 states have call successors, (6838) [2022-07-14 00:37:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29100 states to 29100 states and 42935 transitions. [2022-07-14 00:37:25,191 INFO L78 Accepts]: Start accepts. Automaton has 29100 states and 42935 transitions. Word has length 458 [2022-07-14 00:37:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:37:25,191 INFO L495 AbstractCegarLoop]: Abstraction has 29100 states and 42935 transitions. [2022-07-14 00:37:25,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.346153846153847) internal successors, (295), 21 states have internal predecessors, (295), 2 states have call successors, (108), 6 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-07-14 00:37:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 29100 states and 42935 transitions. [2022-07-14 00:37:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-07-14 00:37:25,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:37:25,287 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 16, 16, 12, 12, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:37:25,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:37:25,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:37:25,512 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:37:25,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:37:25,512 INFO L85 PathProgramCache]: Analyzing trace with hash -86599965, now seen corresponding path program 1 times [2022-07-14 00:37:25,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:37:25,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925426811] [2022-07-14 00:37:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:25,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:37:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:37:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:37:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-14 00:37:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:37:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 00:37:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:37:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-14 00:37:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 00:37:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:37:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 00:37:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 00:37:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:37:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:37:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:37:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-14 00:37:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 00:37:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:37:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-14 00:37:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:37:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:37:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-14 00:37:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 00:37:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-14 00:37:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-14 00:37:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-14 00:37:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-14 00:37:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 00:37:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 00:37:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-14 00:37:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-14 00:37:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:37:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-14 00:37:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-14 00:37:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-14 00:37:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2022-07-14 00:37:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-07-14 00:37:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-07-14 00:37:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-14 00:37:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2022-07-14 00:37:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-14 00:37:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-07-14 00:37:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2022-07-14 00:37:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2022-07-14 00:37:25,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:37:25,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925426811] [2022-07-14 00:37:25,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925426811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:37:25,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:37:25,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:37:25,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818798341] [2022-07-14 00:37:25,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:37:25,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:37:25,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:37:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:37:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:37:25,901 INFO L87 Difference]: Start difference. First operand 29100 states and 42935 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 3 states have internal predecessors, (186), 2 states have call successors, (50), 5 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-14 00:37:30,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:37:30,725 INFO L93 Difference]: Finished difference Result 75489 states and 111246 transitions. [2022-07-14 00:37:30,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:37:30,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 3 states have internal predecessors, (186), 2 states have call successors, (50), 5 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 498 [2022-07-14 00:37:30,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:37:31,044 INFO L225 Difference]: With dead ends: 75489 [2022-07-14 00:37:31,044 INFO L226 Difference]: Without dead ends: 46418 [2022-07-14 00:37:31,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:37:31,118 INFO L413 NwaCegarLoop]: 2248 mSDtfsCounter, 2876 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 2034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 5452 SdHoareTripleChecker+Invalid, 4500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2034 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:37:31,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3107 Valid, 5452 Invalid, 4500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2034 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-14 00:37:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46418 states. [2022-07-14 00:37:32,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46418 to 43573. [2022-07-14 00:37:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43573 states, 32727 states have (on average 1.3742170073639504) internal successors, (44974), 33503 states have internal predecessors, (44974), 8445 states have call successors, (8445), 2209 states have call predecessors, (8445), 2400 states have return successors, (9628), 8366 states have call predecessors, (9628), 8444 states have call successors, (9628) [2022-07-14 00:37:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43573 states to 43573 states and 63047 transitions. [2022-07-14 00:37:32,801 INFO L78 Accepts]: Start accepts. Automaton has 43573 states and 63047 transitions. Word has length 498 [2022-07-14 00:37:32,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:37:32,802 INFO L495 AbstractCegarLoop]: Abstraction has 43573 states and 63047 transitions. [2022-07-14 00:37:32,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 3 states have internal predecessors, (186), 2 states have call successors, (50), 5 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-14 00:37:32,802 INFO L276 IsEmpty]: Start isEmpty. Operand 43573 states and 63047 transitions. [2022-07-14 00:37:32,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-07-14 00:37:32,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:37:32,952 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 16, 16, 12, 12, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:37:32,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 00:37:32,952 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:37:32,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:37:32,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1264309867, now seen corresponding path program 2 times [2022-07-14 00:37:32,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:37:32,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058025703] [2022-07-14 00:37:32,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:32,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:37:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:37:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:37:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:37:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:37:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:37:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 00:37:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:37:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:37:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:37:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-14 00:37:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 00:37:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:37:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:37:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:37:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-14 00:37:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 00:37:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:37:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-14 00:37:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:37:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:37:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-14 00:37:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 00:37:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-14 00:37:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-14 00:37:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-14 00:37:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-14 00:37:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 00:37:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 00:37:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-14 00:37:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-14 00:37:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:37:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-14 00:37:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-14 00:37:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-14 00:37:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2022-07-14 00:37:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-07-14 00:37:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-07-14 00:37:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-14 00:37:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2022-07-14 00:37:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-14 00:37:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-07-14 00:37:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2022-07-14 00:37:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked. [2022-07-14 00:37:33,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:37:33,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058025703] [2022-07-14 00:37:33,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058025703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:37:33,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:37:33,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:37:33,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26559782] [2022-07-14 00:37:33,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:37:33,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:37:33,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:37:33,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:37:33,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:37:33,509 INFO L87 Difference]: Start difference. First operand 43573 states and 63047 transitions. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (50), 5 states have call predecessors, (50), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-07-14 00:37:35,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:39,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:37:44,732 INFO L93 Difference]: Finished difference Result 115863 states and 169116 transitions. [2022-07-14 00:37:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:37:44,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (50), 5 states have call predecessors, (50), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 498 [2022-07-14 00:37:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:37:45,083 INFO L225 Difference]: With dead ends: 115863 [2022-07-14 00:37:45,083 INFO L226 Difference]: Without dead ends: 72322 [2022-07-14 00:37:45,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:37:45,224 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2480 mSDsluCounter, 4453 mSDsCounter, 0 mSdLazyCounter, 3720 mSolverCounterSat, 1680 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2728 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 5402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1680 IncrementalHoareTripleChecker+Valid, 3720 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:37:45,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2728 Valid, 7078 Invalid, 5402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1680 Valid, 3720 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-07-14 00:37:45,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72322 states. [2022-07-14 00:37:47,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72322 to 67425. [2022-07-14 00:37:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67425 states, 51195 states have (on average 1.351928899306573) internal successors, (69212), 52419 states have internal predecessors, (69212), 12323 states have call successors, (12323), 3587 states have call predecessors, (12323), 3906 states have return successors, (13810), 12208 states have call predecessors, (13810), 12322 states have call successors, (13810) [2022-07-14 00:37:47,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67425 states to 67425 states and 95345 transitions. [2022-07-14 00:37:47,491 INFO L78 Accepts]: Start accepts. Automaton has 67425 states and 95345 transitions. Word has length 498 [2022-07-14 00:37:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:37:47,492 INFO L495 AbstractCegarLoop]: Abstraction has 67425 states and 95345 transitions. [2022-07-14 00:37:47,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (50), 5 states have call predecessors, (50), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-07-14 00:37:47,492 INFO L276 IsEmpty]: Start isEmpty. Operand 67425 states and 95345 transitions. [2022-07-14 00:37:47,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-07-14 00:37:47,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:37:47,946 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 16, 16, 12, 12, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:37:47,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 00:37:47,947 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:37:47,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:37:47,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1581488967, now seen corresponding path program 1 times [2022-07-14 00:37:47,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:37:47,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219057563] [2022-07-14 00:37:47,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:47,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:37:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:37:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:37:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:37:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:37:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:37:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 00:37:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:37:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:37:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:37:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-14 00:37:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 00:37:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:37:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:37:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:37:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-14 00:37:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 00:37:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:37:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-14 00:37:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:37:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:37:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-14 00:37:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 00:37:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-14 00:37:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-14 00:37:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-14 00:37:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-14 00:37:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 00:37:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 00:37:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-14 00:37:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-14 00:37:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:37:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-14 00:37:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-14 00:37:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-14 00:37:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2022-07-14 00:37:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-07-14 00:37:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-07-14 00:37:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-14 00:37:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2022-07-14 00:37:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-14 00:37:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-07-14 00:37:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:37:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2022-07-14 00:37:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked. [2022-07-14 00:37:48,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:37:48,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219057563] [2022-07-14 00:37:48,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219057563] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:37:48,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101028352] [2022-07-14 00:37:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:48,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:37:48,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:37:48,572 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:37:48,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 00:37:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:49,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 5072 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:37:49,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:37:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 72 proven. 551 refuted. 0 times theorem prover too weak. 1280 trivial. 0 not checked. [2022-07-14 00:37:50,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:37:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 8 proven. 551 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2022-07-14 00:37:50,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101028352] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:37:50,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:37:50,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2022-07-14 00:37:50,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332208452] [2022-07-14 00:37:50,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:37:50,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:37:50,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:37:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:37:50,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:37:50,358 INFO L87 Difference]: Start difference. First operand 67425 states and 95345 transitions. Second operand has 13 states, 13 states have (on average 23.846153846153847) internal successors, (310), 9 states have internal predecessors, (310), 2 states have call successors, (108), 5 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-07-14 00:38:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:38:00,599 INFO L93 Difference]: Finished difference Result 119893 states and 169508 transitions. [2022-07-14 00:38:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-14 00:38:00,603 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 23.846153846153847) internal successors, (310), 9 states have internal predecessors, (310), 2 states have call successors, (108), 5 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) Word has length 498 [2022-07-14 00:38:00,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:38:00,625 INFO L225 Difference]: With dead ends: 119893 [2022-07-14 00:38:00,625 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 00:38:00,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1139 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2022-07-14 00:38:00,878 INFO L413 NwaCegarLoop]: 2948 mSDtfsCounter, 3375 mSDsluCounter, 15694 mSDsCounter, 0 mSdLazyCounter, 10956 mSolverCounterSat, 2264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3695 SdHoareTripleChecker+Valid, 18642 SdHoareTripleChecker+Invalid, 13220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2264 IncrementalHoareTripleChecker+Valid, 10956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:38:00,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3695 Valid, 18642 Invalid, 13220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2264 Valid, 10956 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-14 00:38:00,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 00:38:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 00:38:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 00:38:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 00:38:00,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 498 [2022-07-14 00:38:00,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:38:00,893 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 00:38:00,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 23.846153846153847) internal successors, (310), 9 states have internal predecessors, (310), 2 states have call successors, (108), 5 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-07-14 00:38:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 00:38:00,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 00:38:00,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-14 00:38:00,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:38:01,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 00:38:01,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-14 00:39:52,497 WARN L233 SmtUtils]: Spent 1.68m on a formula simplification. DAG size of input: 1884 DAG size of output: 1879 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)