./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.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-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.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 f3090fd14639372da088dcbc149768c93516e312be941c28b3a0b4b80aaee842 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 23:02:47,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:02:47,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:02:48,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:02:48,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:02:48,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:02:48,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:02:48,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:02:48,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:02:48,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:02:48,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:02:48,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:02:48,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:02:48,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:02:48,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:02:48,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:02:48,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:02:48,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:02:48,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:02:48,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:02:48,057 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:02:48,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:02:48,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:02:48,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:02:48,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:02:48,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:02:48,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:02:48,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:02:48,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:02:48,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:02:48,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:02:48,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:02:48,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:02:48,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:02:48,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:02:48,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:02:48,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:02:48,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:02:48,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:02:48,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:02:48,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:02:48,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:02:48,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 23:02:48,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:02:48,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:02:48,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:02:48,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:02:48,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:02:48,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:02:48,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:02:48,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:02:48,120 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:02:48,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:02:48,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 23:02:48,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:02:48,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:02:48,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:02:48,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:02:48,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:02:48,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:02:48,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:02:48,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:02:48,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:02:48,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:02:48,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:02:48,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:02:48,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:02:48,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:02:48,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 23:02:48,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 23:02:48,126 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:02:48,126 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:02:48,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:02:48,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3090fd14639372da088dcbc149768c93516e312be941c28b3a0b4b80aaee842 [2022-07-13 23:02:48,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:02:48,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:02:48,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:02:48,396 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:02:48,397 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:02:48,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2022-07-13 23:02:48,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cfde6c6/905d45de35e14d4cba5a01743470d0d5/FLAG28bd9d0fa [2022-07-13 23:02:49,085 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:02:49,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2022-07-13 23:02:49,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cfde6c6/905d45de35e14d4cba5a01743470d0d5/FLAG28bd9d0fa [2022-07-13 23:02:49,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cfde6c6/905d45de35e14d4cba5a01743470d0d5 [2022-07-13 23:02:49,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:02:49,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:02:49,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:02:49,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:02:49,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:02:49,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:02:49" (1/1) ... [2022-07-13 23:02:49,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd8b432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:49, skipping insertion in model container [2022-07-13 23:02:49,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:02:49" (1/1) ... [2022-07-13 23:02:49,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:02:49,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:02:50,293 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-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i[159323,159336] [2022-07-13 23:02:50,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:02:50,364 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:02:50,570 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-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i[159323,159336] [2022-07-13 23:02:50,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:02:50,632 INFO L208 MainTranslator]: Completed translation [2022-07-13 23:02:50,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50 WrapperNode [2022-07-13 23:02:50,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 23:02:50,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 23:02:50,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 23:02:50,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 23:02:50,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,802 INFO L137 Inliner]: procedures = 131, calls = 748, calls flagged for inlining = 45, calls inlined = 42, statements flattened = 2167 [2022-07-13 23:02:50,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 23:02:50,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 23:02:50,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 23:02:50,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 23:02:50,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 23:02:50,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 23:02:50,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 23:02:50,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 23:02:50,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (1/1) ... [2022-07-13 23:02:50,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:02:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:02:51,021 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) [2022-07-13 23:02:51,040 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 [2022-07-13 23:02:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-13 23:02:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-13 23:02:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-13 23:02:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-13 23:02:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-13 23:02:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-13 23:02:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-13 23:02:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-13 23:02:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-13 23:02:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 23:02:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-07-13 23:02:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-07-13 23:02:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-13 23:02:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-13 23:02:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-13 23:02:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-13 23:02:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-13 23:02:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-13 23:02:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-13 23:02:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-13 23:02:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-13 23:02:51,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-13 23:02:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-07-13 23:02:51,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-07-13 23:02:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-13 23:02:51,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-13 23:02:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2022-07-13 23:02:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2022-07-13 23:02:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 23:02:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-13 23:02:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-13 23:02:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-13 23:02:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-13 23:02:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-07-13 23:02:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-07-13 23:02:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-07-13 23:02:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-07-13 23:02:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-13 23:02:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-13 23:02:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 23:02:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 23:02:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 23:02:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2022-07-13 23:02:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2022-07-13 23:02:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2022-07-13 23:02:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2022-07-13 23:02:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-13 23:02:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-13 23:02:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 23:02:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-13 23:02:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-13 23:02:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 23:02:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 23:02:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-13 23:02:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2022-07-13 23:02:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2022-07-13 23:02:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-13 23:02:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-13 23:02:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 23:02:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-13 23:02:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-13 23:02:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-13 23:02:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-13 23:02:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-13 23:02:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-13 23:02:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-13 23:02:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-13 23:02:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-13 23:02:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-13 23:02:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-07-13 23:02:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-07-13 23:02:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 23:02:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 23:02:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-13 23:02:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-13 23:02:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-13 23:02:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-13 23:02:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-13 23:02:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-13 23:02:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-13 23:02:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-13 23:02:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-13 23:02:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-13 23:02:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-13 23:02:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-13 23:02:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-13 23:02:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-13 23:02:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2022-07-13 23:02:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2022-07-13 23:02:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-07-13 23:02:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-07-13 23:02:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 23:02:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-13 23:02:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-13 23:02:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-13 23:02:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-13 23:02:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-13 23:02:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-13 23:02:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-13 23:02:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-13 23:02:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-13 23:02:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 23:02:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 23:02:51,510 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 23:02:51,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 23:02:51,762 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-13 23:02:51,776 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-07-13 23:02:51,776 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-07-13 23:02:51,918 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-07-13 23:02:51,959 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-13 23:02:51,967 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-13 23:02:51,973 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-13 23:02:53,019 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##275: assume !false; [2022-07-13 23:02:53,020 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##274: assume false; [2022-07-13 23:02:53,020 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2022-07-13 23:02:53,020 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2022-07-13 23:02:53,021 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2022-07-13 23:02:53,021 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2022-07-13 23:02:53,058 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 23:02:53,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 23:02:53,082 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2022-07-13 23:02:53,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:02:53 BoogieIcfgContainer [2022-07-13 23:02:53,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 23:02:53,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 23:02:53,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 23:02:53,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 23:02:53,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:02:49" (1/3) ... [2022-07-13 23:02:53,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119f4f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:02:53, skipping insertion in model container [2022-07-13 23:02:53,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:02:50" (2/3) ... [2022-07-13 23:02:53,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119f4f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:02:53, skipping insertion in model container [2022-07-13 23:02:53,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:02:53" (3/3) ... [2022-07-13 23:02:53,103 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2022-07-13 23:02:53,114 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 23:02:53,115 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 23:02:53,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 23:02:53,192 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@34d7af3d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60761ee1 [2022-07-13 23:02:53,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 23:02:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 641 states, 456 states have (on average 1.4517543859649122) internal successors, (662), 479 states have internal predecessors, (662), 141 states have call successors, (141), 43 states have call predecessors, (141), 42 states have return successors, (139), 133 states have call predecessors, (139), 139 states have call successors, (139) [2022-07-13 23:02:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 23:02:53,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:02:53,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:02:53,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:02:53,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:02:53,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1998682536, now seen corresponding path program 1 times [2022-07-13 23:02:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:02:53,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180453147] [2022-07-13 23:02:53,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:02:53,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:02:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:53,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:02:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:02:53,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:02:53,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180453147] [2022-07-13 23:02:53,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180453147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:02:53,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:02:53,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:02:53,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140161401] [2022-07-13 23:02:53,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:02:53,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:02:53,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:02:53,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:02:53,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:02:53,748 INFO L87 Difference]: Start difference. First operand has 641 states, 456 states have (on average 1.4517543859649122) internal successors, (662), 479 states have internal predecessors, (662), 141 states have call successors, (141), 43 states have call predecessors, (141), 42 states have return successors, (139), 133 states have call predecessors, (139), 139 states have call successors, (139) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:02:53,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:02:53,939 INFO L93 Difference]: Finished difference Result 1883 states and 2812 transitions. [2022-07-13 23:02:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:02:53,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-07-13 23:02:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:02:53,988 INFO L225 Difference]: With dead ends: 1883 [2022-07-13 23:02:53,988 INFO L226 Difference]: Without dead ends: 1243 [2022-07-13 23:02:53,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:02:54,003 INFO L413 NwaCegarLoop]: 1070 mSDtfsCounter, 861 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:02:54,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1921 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:02:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-07-13 23:02:54,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1239. [2022-07-13 23:02:54,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 884 states have (on average 1.3178733031674208) internal successors, (1165), 914 states have internal predecessors, (1165), 273 states have call successors, (273), 82 states have call predecessors, (273), 81 states have return successors, (271), 257 states have call predecessors, (271), 269 states have call successors, (271) [2022-07-13 23:02:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1709 transitions. [2022-07-13 23:02:54,181 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1709 transitions. Word has length 15 [2022-07-13 23:02:54,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:02:54,181 INFO L495 AbstractCegarLoop]: Abstraction has 1239 states and 1709 transitions. [2022-07-13 23:02:54,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:02:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1709 transitions. [2022-07-13 23:02:54,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-13 23:02:54,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:02:54,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:02:54,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 23:02:54,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:02:54,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:02:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1829918382, now seen corresponding path program 1 times [2022-07-13 23:02:54,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:02:54,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397086660] [2022-07-13 23:02:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:02:54,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:02:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:54,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:02:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:02:54,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:02:54,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397086660] [2022-07-13 23:02:54,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397086660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:02:54,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:02:54,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:02:54,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300711640] [2022-07-13 23:02:54,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:02:54,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:02:54,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:02:54,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:02:54,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:02:54,391 INFO L87 Difference]: Start difference. First operand 1239 states and 1709 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:02:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:02:54,502 INFO L93 Difference]: Finished difference Result 3692 states and 5102 transitions. [2022-07-13 23:02:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:02:54,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-13 23:02:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:02:54,520 INFO L225 Difference]: With dead ends: 3692 [2022-07-13 23:02:54,520 INFO L226 Difference]: Without dead ends: 2456 [2022-07-13 23:02:54,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:02:54,528 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 851 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:02:54,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1844 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:02:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2022-07-13 23:02:54,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 2449. [2022-07-13 23:02:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 1748 states have (on average 1.3157894736842106) internal successors, (2300), 1803 states have internal predecessors, (2300), 540 states have call successors, (540), 161 states have call predecessors, (540), 160 states have return successors, (540), 512 states have call predecessors, (540), 536 states have call successors, (540) [2022-07-13 23:02:54,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3380 transitions. [2022-07-13 23:02:54,674 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3380 transitions. Word has length 16 [2022-07-13 23:02:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:02:54,674 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3380 transitions. [2022-07-13 23:02:54,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:02:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3380 transitions. [2022-07-13 23:02:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-13 23:02:54,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:02:54,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:02:54,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 23:02:54,684 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:02:54,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:02:54,685 INFO L85 PathProgramCache]: Analyzing trace with hash -202092571, now seen corresponding path program 1 times [2022-07-13 23:02:54,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:02:54,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009442628] [2022-07-13 23:02:54,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:02:54,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:02:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:02:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:02:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:54,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-13 23:02:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 23:02:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:02:54,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:02:54,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009442628] [2022-07-13 23:02:54,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009442628] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:02:54,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:02:54,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 23:02:54,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534243322] [2022-07-13 23:02:54,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:02:54,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:02:54,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:02:54,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:02:54,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:02:54,893 INFO L87 Difference]: Start difference. First operand 2449 states and 3380 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 23:02:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:02:56,616 INFO L93 Difference]: Finished difference Result 6695 states and 9586 transitions. [2022-07-13 23:02:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 23:02:56,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-07-13 23:02:56,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:02:56,640 INFO L225 Difference]: With dead ends: 6695 [2022-07-13 23:02:56,641 INFO L226 Difference]: Without dead ends: 4257 [2022-07-13 23:02:56,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:02:56,651 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 986 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 23:02:56,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2994 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 23:02:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4257 states. [2022-07-13 23:02:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4257 to 4097. [2022-07-13 23:02:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4097 states, 2980 states have (on average 1.3375838926174497) internal successors, (3986), 3051 states have internal predecessors, (3986), 956 states have call successors, (956), 161 states have call predecessors, (956), 160 states have return successors, (960), 920 states have call predecessors, (960), 952 states have call successors, (960) [2022-07-13 23:02:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4097 states to 4097 states and 5902 transitions. [2022-07-13 23:02:56,838 INFO L78 Accepts]: Start accepts. Automaton has 4097 states and 5902 transitions. Word has length 54 [2022-07-13 23:02:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:02:56,839 INFO L495 AbstractCegarLoop]: Abstraction has 4097 states and 5902 transitions. [2022-07-13 23:02:56,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 23:02:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4097 states and 5902 transitions. [2022-07-13 23:02:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 23:02:56,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:02:56,845 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:02:56,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 23:02:56,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:02:56,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:02:56,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1025684830, now seen corresponding path program 1 times [2022-07-13 23:02:56,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:02:56,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311504741] [2022-07-13 23:02:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:02:56,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:02:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:02:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:02:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:02:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 23:02:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 23:02:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 23:02:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 23:02:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 23:02:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:02:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-13 23:02:57,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:02:57,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311504741] [2022-07-13 23:02:57,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311504741] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:02:57,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:02:57,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:02:57,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025607187] [2022-07-13 23:02:57,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:02:57,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:02:57,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:02:57,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:02:57,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:02:57,056 INFO L87 Difference]: Start difference. First operand 4097 states and 5902 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 23:02:58,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:02:58,303 INFO L93 Difference]: Finished difference Result 10323 states and 15273 transitions. [2022-07-13 23:02:58,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:02:58,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2022-07-13 23:02:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:02:58,341 INFO L225 Difference]: With dead ends: 10323 [2022-07-13 23:02:58,341 INFO L226 Difference]: Without dead ends: 6235 [2022-07-13 23:02:58,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:02:58,363 INFO L413 NwaCegarLoop]: 930 mSDtfsCounter, 550 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:02:58,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 2298 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 23:02:58,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6235 states. [2022-07-13 23:02:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6235 to 6143. [2022-07-13 23:02:58,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6143 states, 4542 states have (on average 1.3725231175693526) internal successors, (6234), 4657 states have internal predecessors, (6234), 1440 states have call successors, (1440), 161 states have call predecessors, (1440), 160 states have return successors, (1446), 1384 states have call predecessors, (1446), 1436 states have call successors, (1446) [2022-07-13 23:02:58,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 9120 transitions. [2022-07-13 23:02:58,654 INFO L78 Accepts]: Start accepts. Automaton has 6143 states and 9120 transitions. Word has length 82 [2022-07-13 23:02:58,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:02:58,654 INFO L495 AbstractCegarLoop]: Abstraction has 6143 states and 9120 transitions. [2022-07-13 23:02:58,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 23:02:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 6143 states and 9120 transitions. [2022-07-13 23:02:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 23:02:58,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:02:58,661 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:02:58,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 23:02:58,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:02:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:02:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash 925792367, now seen corresponding path program 1 times [2022-07-13 23:02:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:02:58,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060474421] [2022-07-13 23:02:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:02:58,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:02:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:02:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:02:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:02:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:02:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:02:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:02:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 23:02:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:02:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 23:02:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:02:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-13 23:02:58,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:02:58,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060474421] [2022-07-13 23:02:58,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060474421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:02:58,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:02:58,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 23:02:58,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512594260] [2022-07-13 23:02:58,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:02:58,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:02:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:02:58,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:02:58,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:02:58,909 INFO L87 Difference]: Start difference. First operand 6143 states and 9120 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 23:03:01,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:01,351 INFO L93 Difference]: Finished difference Result 16745 states and 25046 transitions. [2022-07-13 23:03:01,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:03:01,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-07-13 23:03:01,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:01,428 INFO L225 Difference]: With dead ends: 16745 [2022-07-13 23:03:01,428 INFO L226 Difference]: Without dead ends: 10613 [2022-07-13 23:03:01,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:03:01,452 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 1011 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:01,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 2386 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 23:03:01,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10613 states. [2022-07-13 23:03:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10613 to 10299. [2022-07-13 23:03:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10299 states, 7662 states have (on average 1.3843643957191334) internal successors, (10607), 7877 states have internal predecessors, (10607), 2360 states have call successors, (2360), 277 states have call predecessors, (2360), 276 states have return successors, (2394), 2220 states have call predecessors, (2394), 2356 states have call successors, (2394) [2022-07-13 23:03:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 15361 transitions. [2022-07-13 23:03:01,942 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 15361 transitions. Word has length 102 [2022-07-13 23:03:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:01,942 INFO L495 AbstractCegarLoop]: Abstraction has 10299 states and 15361 transitions. [2022-07-13 23:03:01,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 23:03:01,943 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 15361 transitions. [2022-07-13 23:03:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 23:03:01,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:01,948 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:03:01,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 23:03:01,949 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:01,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:01,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2044318735, now seen corresponding path program 1 times [2022-07-13 23:03:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:01,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941885149] [2022-07-13 23:03:01,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:01,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:03:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:03:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:03:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:03:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 23:03:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:03:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 23:03:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-13 23:03:02,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:02,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941885149] [2022-07-13 23:03:02,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941885149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:02,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:03:02,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 23:03:02,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106653501] [2022-07-13 23:03:02,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:02,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:03:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:02,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:03:02,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:03:02,192 INFO L87 Difference]: Start difference. First operand 10299 states and 15361 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 23:03:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:03,605 INFO L93 Difference]: Finished difference Result 20845 states and 31215 transitions. [2022-07-13 23:03:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:03:03,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2022-07-13 23:03:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:03,653 INFO L225 Difference]: With dead ends: 20845 [2022-07-13 23:03:03,654 INFO L226 Difference]: Without dead ends: 10519 [2022-07-13 23:03:03,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:03:03,693 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 341 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:03,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 2486 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 23:03:03,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-07-13 23:03:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 10261. [2022-07-13 23:03:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10261 states, 7648 states have (on average 1.3840219665271967) internal successors, (10585), 7869 states have internal predecessors, (10585), 2333 states have call successors, (2333), 280 states have call predecessors, (2333), 279 states have return successors, (2367), 2187 states have call predecessors, (2367), 2329 states have call successors, (2367) [2022-07-13 23:03:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10261 states to 10261 states and 15285 transitions. [2022-07-13 23:03:04,179 INFO L78 Accepts]: Start accepts. Automaton has 10261 states and 15285 transitions. Word has length 102 [2022-07-13 23:03:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:04,180 INFO L495 AbstractCegarLoop]: Abstraction has 10261 states and 15285 transitions. [2022-07-13 23:03:04,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 23:03:04,180 INFO L276 IsEmpty]: Start isEmpty. Operand 10261 states and 15285 transitions. [2022-07-13 23:03:04,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-13 23:03:04,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:04,189 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 23:03:04,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 23:03:04,189 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:04,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:04,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1722704680, now seen corresponding path program 1 times [2022-07-13 23:03:04,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:04,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121958946] [2022-07-13 23:03:04,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:04,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 23:03:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:03:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:03:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 23:03:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:03:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 23:03:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 23:03:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 23:03:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 23:03:04,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:04,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121958946] [2022-07-13 23:03:04,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121958946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:04,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:03:04,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 23:03:04,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31202238] [2022-07-13 23:03:04,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:04,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 23:03:04,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 23:03:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:03:04,424 INFO L87 Difference]: Start difference. First operand 10261 states and 15285 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 23:03:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:05,854 INFO L93 Difference]: Finished difference Result 18937 states and 28114 transitions. [2022-07-13 23:03:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 23:03:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 124 [2022-07-13 23:03:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:05,891 INFO L225 Difference]: With dead ends: 18937 [2022-07-13 23:03:05,891 INFO L226 Difference]: Without dead ends: 8660 [2022-07-13 23:03:05,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:03:05,924 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 423 mSDsluCounter, 2136 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:05,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 2986 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 23:03:05,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8660 states. [2022-07-13 23:03:06,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8660 to 8382. [2022-07-13 23:03:06,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8382 states, 6231 states have (on average 1.369603594928583) internal successors, (8534), 6397 states have internal predecessors, (8534), 1872 states have call successors, (1872), 279 states have call predecessors, (1872), 278 states have return successors, (1891), 1761 states have call predecessors, (1891), 1867 states have call successors, (1891) [2022-07-13 23:03:06,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 12297 transitions. [2022-07-13 23:03:06,230 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 12297 transitions. Word has length 124 [2022-07-13 23:03:06,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:06,233 INFO L495 AbstractCegarLoop]: Abstraction has 8382 states and 12297 transitions. [2022-07-13 23:03:06,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 23:03:06,233 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 12297 transitions. [2022-07-13 23:03:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-13 23:03:06,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:06,237 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-07-13 23:03:06,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 23:03:06,238 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:06,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:06,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1235177482, now seen corresponding path program 1 times [2022-07-13 23:03:06,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:06,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201583738] [2022-07-13 23:03:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:06,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 23:03:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-13 23:03:06,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:06,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201583738] [2022-07-13 23:03:06,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201583738] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:06,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016486619] [2022-07-13 23:03:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:06,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:03:06,871 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) [2022-07-13 23:03:06,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 23:03:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 1980 conjuncts, 62 conjunts are in the unsatisfiable core [2022-07-13 23:03:07,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:03:08,080 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 7 treesize of output 3 [2022-07-13 23:03:08,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 23:03:08,186 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 7 treesize of output 3 [2022-07-13 23:03:08,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 23:03:08,301 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 7 treesize of output 3 [2022-07-13 23:03:08,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 23:03:08,399 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 7 treesize of output 3 [2022-07-13 23:03:08,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 23:03:08,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 23:03:08,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 23:03:08,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 23:03:08,634 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 15 treesize of output 7 [2022-07-13 23:03:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-13 23:03:08,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:03:08,705 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1733 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_iowarrior_probe_~dev~8#1.base| v_ArrVal_1733) |c_~#debug~0.base|) |c_~#debug~0.offset|) 0)) is different from false [2022-07-13 23:03:08,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016486619] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:08,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 23:03:08,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2022-07-13 23:03:08,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442980052] [2022-07-13 23:03:08,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 23:03:08,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-13 23:03:08,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:08,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-13 23:03:08,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=622, Unknown=11, NotChecked=50, Total=756 [2022-07-13 23:03:08,720 INFO L87 Difference]: Start difference. First operand 8382 states and 12297 transitions. Second operand has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (30), 10 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-13 23:03:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:18,837 INFO L93 Difference]: Finished difference Result 17243 states and 25432 transitions. [2022-07-13 23:03:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-13 23:03:18,838 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (30), 10 states have call predecessors, (30), 5 states have call successors, (30) Word has length 125 [2022-07-13 23:03:18,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:18,877 INFO L225 Difference]: With dead ends: 17243 [2022-07-13 23:03:18,877 INFO L226 Difference]: Without dead ends: 8860 [2022-07-13 23:03:18,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=317, Invalid=2008, Unknown=31, NotChecked=94, Total=2450 [2022-07-13 23:03:18,902 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 1526 mSDsluCounter, 9168 mSDsCounter, 0 mSdLazyCounter, 9997 mSolverCounterSat, 1158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 10011 SdHoareTripleChecker+Invalid, 12227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1158 IncrementalHoareTripleChecker+Valid, 9997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1072 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:18,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 10011 Invalid, 12227 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1158 Valid, 9997 Invalid, 0 Unknown, 1072 Unchecked, 9.0s Time] [2022-07-13 23:03:18,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8860 states. [2022-07-13 23:03:19,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8860 to 8592. [2022-07-13 23:03:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 6385 states have (on average 1.3627251370399374) internal successors, (8701), 6564 states have internal predecessors, (8701), 1888 states have call successors, (1888), 283 states have call predecessors, (1888), 318 states have return successors, (2111), 1800 states have call predecessors, (2111), 1883 states have call successors, (2111) [2022-07-13 23:03:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 12700 transitions. [2022-07-13 23:03:19,304 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 12700 transitions. Word has length 125 [2022-07-13 23:03:19,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:19,304 INFO L495 AbstractCegarLoop]: Abstraction has 8592 states and 12700 transitions. [2022-07-13 23:03:19,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (30), 10 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-13 23:03:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 12700 transitions. [2022-07-13 23:03:19,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-13 23:03:19,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:19,310 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-07-13 23:03:19,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 23:03:19,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:19,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:19,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:19,536 INFO L85 PathProgramCache]: Analyzing trace with hash -296645867, now seen corresponding path program 1 times [2022-07-13 23:03:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:19,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285350758] [2022-07-13 23:03:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:19,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:19,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:19,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 23:03:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-13 23:03:20,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:20,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285350758] [2022-07-13 23:03:20,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285350758] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:20,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858333340] [2022-07-13 23:03:20,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:20,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:20,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:03:20,133 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) [2022-07-13 23:03:20,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 23:03:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:20,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1989 conjuncts, 57 conjunts are in the unsatisfiable core [2022-07-13 23:03:20,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:03:20,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-13 23:03:20,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-13 23:03:21,015 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 19 treesize of output 7 [2022-07-13 23:03:21,021 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 19 treesize of output 7 [2022-07-13 23:03:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-13 23:03:21,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:03:21,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858333340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:21,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:03:21,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 27 [2022-07-13 23:03:21,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649513276] [2022-07-13 23:03:21,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:21,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 23:03:21,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:21,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 23:03:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702 [2022-07-13 23:03:21,115 INFO L87 Difference]: Start difference. First operand 8592 states and 12700 transitions. Second operand has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-13 23:03:22,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:22,001 INFO L93 Difference]: Finished difference Result 8817 states and 12992 transitions. [2022-07-13 23:03:22,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 23:03:22,003 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2022-07-13 23:03:22,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:22,041 INFO L225 Difference]: With dead ends: 8817 [2022-07-13 23:03:22,041 INFO L226 Difference]: Without dead ends: 8656 [2022-07-13 23:03:22,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-07-13 23:03:22,051 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 17 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 7547 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:22,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 7547 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 0 Unknown, 68 Unchecked, 0.6s Time] [2022-07-13 23:03:22,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8656 states. [2022-07-13 23:03:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8656 to 8602. [2022-07-13 23:03:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8602 states, 6393 states have (on average 1.3597684967933676) internal successors, (8693), 6570 states have internal predecessors, (8693), 1894 states have call successors, (1894), 283 states have call predecessors, (1894), 314 states have return successors, (2113), 1804 states have call predecessors, (2113), 1889 states have call successors, (2113) [2022-07-13 23:03:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8602 states to 8602 states and 12700 transitions. [2022-07-13 23:03:22,374 INFO L78 Accepts]: Start accepts. Automaton has 8602 states and 12700 transitions. Word has length 125 [2022-07-13 23:03:22,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:22,375 INFO L495 AbstractCegarLoop]: Abstraction has 8602 states and 12700 transitions. [2022-07-13 23:03:22,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-13 23:03:22,376 INFO L276 IsEmpty]: Start isEmpty. Operand 8602 states and 12700 transitions. [2022-07-13 23:03:22,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-13 23:03:22,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:22,379 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-07-13 23:03:22,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 23:03:22,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-13 23:03:22,596 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:22,596 INFO L85 PathProgramCache]: Analyzing trace with hash -363652620, now seen corresponding path program 1 times [2022-07-13 23:03:22,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:22,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507130280] [2022-07-13 23:03:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:22,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 23:03:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-13 23:03:22,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:22,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507130280] [2022-07-13 23:03:22,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507130280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:22,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:03:22,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 23:03:22,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480232477] [2022-07-13 23:03:22,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:22,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 23:03:22,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:22,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 23:03:22,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:03:22,993 INFO L87 Difference]: Start difference. First operand 8602 states and 12700 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-13 23:03:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:25,836 INFO L93 Difference]: Finished difference Result 13052 states and 19371 transitions. [2022-07-13 23:03:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 23:03:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2022-07-13 23:03:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:25,872 INFO L225 Difference]: With dead ends: 13052 [2022-07-13 23:03:25,873 INFO L226 Difference]: Without dead ends: 8714 [2022-07-13 23:03:25,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-07-13 23:03:25,889 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 329 mSDsluCounter, 4252 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 5078 SdHoareTripleChecker+Invalid, 2730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:25,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 5078 Invalid, 2730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-13 23:03:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8714 states. [2022-07-13 23:03:26,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8714 to 8642. [2022-07-13 23:03:26,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8642 states, 6425 states have (on average 1.3579766536964981) internal successors, (8725), 6594 states have internal predecessors, (8725), 1894 states have call successors, (1894), 283 states have call predecessors, (1894), 322 states have return successors, (2133), 1820 states have call predecessors, (2133), 1889 states have call successors, (2133) [2022-07-13 23:03:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8642 states to 8642 states and 12752 transitions. [2022-07-13 23:03:26,212 INFO L78 Accepts]: Start accepts. Automaton has 8642 states and 12752 transitions. Word has length 125 [2022-07-13 23:03:26,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:26,213 INFO L495 AbstractCegarLoop]: Abstraction has 8642 states and 12752 transitions. [2022-07-13 23:03:26,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-13 23:03:26,213 INFO L276 IsEmpty]: Start isEmpty. Operand 8642 states and 12752 transitions. [2022-07-13 23:03:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-13 23:03:26,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:26,217 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-07-13 23:03:26,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 23:03:26,218 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:26,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:26,218 INFO L85 PathProgramCache]: Analyzing trace with hash -12852683, now seen corresponding path program 1 times [2022-07-13 23:03:26,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:26,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434790821] [2022-07-13 23:03:26,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:26,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 23:03:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-13 23:03:26,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:26,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434790821] [2022-07-13 23:03:26,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434790821] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:26,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:03:26,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-13 23:03:26,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787181546] [2022-07-13 23:03:26,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:26,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 23:03:26,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:26,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 23:03:26,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:03:26,580 INFO L87 Difference]: Start difference. First operand 8642 states and 12752 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-13 23:03:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:29,664 INFO L93 Difference]: Finished difference Result 17329 states and 25651 transitions. [2022-07-13 23:03:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 23:03:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2022-07-13 23:03:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:29,702 INFO L225 Difference]: With dead ends: 17329 [2022-07-13 23:03:29,703 INFO L226 Difference]: Without dead ends: 8698 [2022-07-13 23:03:29,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2022-07-13 23:03:29,732 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 328 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3490 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 3490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:29,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 6692 Invalid, 3808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 3490 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-13 23:03:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8698 states. [2022-07-13 23:03:30,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8698 to 8634. [2022-07-13 23:03:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8634 states, 6417 states have (on average 1.3562412342215988) internal successors, (8703), 6590 states have internal predecessors, (8703), 1894 states have call successors, (1894), 283 states have call predecessors, (1894), 322 states have return successors, (2133), 1816 states have call predecessors, (2133), 1889 states have call successors, (2133) [2022-07-13 23:03:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8634 states to 8634 states and 12730 transitions. [2022-07-13 23:03:30,101 INFO L78 Accepts]: Start accepts. Automaton has 8634 states and 12730 transitions. Word has length 125 [2022-07-13 23:03:30,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:30,101 INFO L495 AbstractCegarLoop]: Abstraction has 8634 states and 12730 transitions. [2022-07-13 23:03:30,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-13 23:03:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8634 states and 12730 transitions. [2022-07-13 23:03:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-13 23:03:30,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:30,107 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2022-07-13 23:03:30,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 23:03:30,108 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:30,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:30,108 INFO L85 PathProgramCache]: Analyzing trace with hash -247684463, now seen corresponding path program 1 times [2022-07-13 23:03:30,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:30,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458608996] [2022-07-13 23:03:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:30,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:03:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 23:03:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:30,457 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-13 23:03:30,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:30,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458608996] [2022-07-13 23:03:30,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458608996] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:30,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:03:30,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 23:03:30,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569114637] [2022-07-13 23:03:30,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:30,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 23:03:30,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:30,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 23:03:30,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:03:30,460 INFO L87 Difference]: Start difference. First operand 8634 states and 12730 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2022-07-13 23:03:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:35,520 INFO L93 Difference]: Finished difference Result 13107 states and 19450 transitions. [2022-07-13 23:03:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 23:03:35,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 138 [2022-07-13 23:03:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:35,560 INFO L225 Difference]: With dead ends: 13107 [2022-07-13 23:03:35,561 INFO L226 Difference]: Without dead ends: 13102 [2022-07-13 23:03:35,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2022-07-13 23:03:35,570 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 3805 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 3118 mSolverCounterSat, 1938 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4037 SdHoareTripleChecker+Valid, 4752 SdHoareTripleChecker+Invalid, 5056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1938 IncrementalHoareTripleChecker+Valid, 3118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:35,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4037 Valid, 4752 Invalid, 5056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1938 Valid, 3118 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-13 23:03:35,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13102 states. [2022-07-13 23:03:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13102 to 12956. [2022-07-13 23:03:36,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12956 states, 9621 states have (on average 1.3580708866022242) internal successors, (13066), 9886 states have internal predecessors, (13066), 2848 states have call successors, (2848), 419 states have call predecessors, (2848), 486 states have return successors, (3281), 2734 states have call predecessors, (3281), 2843 states have call successors, (3281) [2022-07-13 23:03:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12956 states to 12956 states and 19195 transitions. [2022-07-13 23:03:36,053 INFO L78 Accepts]: Start accepts. Automaton has 12956 states and 19195 transitions. Word has length 138 [2022-07-13 23:03:36,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:36,053 INFO L495 AbstractCegarLoop]: Abstraction has 12956 states and 19195 transitions. [2022-07-13 23:03:36,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2022-07-13 23:03:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 12956 states and 19195 transitions. [2022-07-13 23:03:36,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-13 23:03:36,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:36,060 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:03:36,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 23:03:36,060 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:36,060 INFO L85 PathProgramCache]: Analyzing trace with hash -765782195, now seen corresponding path program 1 times [2022-07-13 23:03:36,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:36,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961182541] [2022-07-13 23:03:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:36,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:03:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:03:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:03:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:03:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:03:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:03:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:03:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 23:03:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:03:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 23:03:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 23:03:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 23:03:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-13 23:03:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-13 23:03:36,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:36,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961182541] [2022-07-13 23:03:36,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961182541] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:36,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343498458] [2022-07-13 23:03:36,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:36,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:36,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:03:36,285 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) [2022-07-13 23:03:36,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 23:03:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:36,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 23:03:36,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:03:36,929 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 23:03:36,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:03:36,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343498458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:36,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:03:36,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-07-13 23:03:36,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938763225] [2022-07-13 23:03:36,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:03:36,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:36,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:03:36,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:03:36,934 INFO L87 Difference]: Start difference. First operand 12956 states and 19195 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-13 23:03:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:37,366 INFO L93 Difference]: Finished difference Result 26083 states and 38622 transitions. [2022-07-13 23:03:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 23:03:37,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 133 [2022-07-13 23:03:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:37,426 INFO L225 Difference]: With dead ends: 26083 [2022-07-13 23:03:37,426 INFO L226 Difference]: Without dead ends: 13114 [2022-07-13 23:03:37,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:03:37,465 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 25 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3488 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:37,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3488 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:03:37,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13114 states. [2022-07-13 23:03:37,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13114 to 12979. [2022-07-13 23:03:37,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12979 states, 9624 states have (on average 1.3576475477971737) internal successors, (13066), 9896 states have internal predecessors, (13066), 2868 states have call successors, (2868), 419 states have call predecessors, (2868), 486 states have return successors, (3301), 2747 states have call predecessors, (3301), 2863 states have call successors, (3301) [2022-07-13 23:03:38,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 19235 transitions. [2022-07-13 23:03:38,043 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 19235 transitions. Word has length 133 [2022-07-13 23:03:38,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:38,044 INFO L495 AbstractCegarLoop]: Abstraction has 12979 states and 19235 transitions. [2022-07-13 23:03:38,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-13 23:03:38,044 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 19235 transitions. [2022-07-13 23:03:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-13 23:03:38,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:38,050 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:03:38,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 23:03:38,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:38,275 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:38,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1286737262, now seen corresponding path program 1 times [2022-07-13 23:03:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:38,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197783638] [2022-07-13 23:03:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:03:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:03:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:03:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:03:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:03:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:03:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:03:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:03:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:03:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:03:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 23:03:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-13 23:03:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-13 23:03:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 23:03:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-13 23:03:38,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:38,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197783638] [2022-07-13 23:03:38,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197783638] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:38,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476190055] [2022-07-13 23:03:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:38,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:38,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:03:38,548 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) [2022-07-13 23:03:38,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 23:03:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:39,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:03:39,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:03:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-13 23:03:39,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:03:39,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476190055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:39,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:03:39,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-07-13 23:03:39,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088620826] [2022-07-13 23:03:39,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:39,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:03:39,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:03:39,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:03:39,191 INFO L87 Difference]: Start difference. First operand 12979 states and 19235 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-13 23:03:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:39,572 INFO L93 Difference]: Finished difference Result 26045 states and 38567 transitions. [2022-07-13 23:03:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:03:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2022-07-13 23:03:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:39,626 INFO L225 Difference]: With dead ends: 26045 [2022-07-13 23:03:39,626 INFO L226 Difference]: Without dead ends: 13062 [2022-07-13 23:03:39,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:03:39,661 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 16 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:39,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2591 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:03:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13062 states. [2022-07-13 23:03:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13062 to 12979. [2022-07-13 23:03:40,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12979 states, 9624 states have (on average 1.3557772236076475) internal successors, (13048), 9896 states have internal predecessors, (13048), 2865 states have call successors, (2865), 422 states have call predecessors, (2865), 489 states have return successors, (3298), 2744 states have call predecessors, (3298), 2860 states have call successors, (3298) [2022-07-13 23:03:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 19211 transitions. [2022-07-13 23:03:40,304 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 19211 transitions. Word has length 139 [2022-07-13 23:03:40,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:40,305 INFO L495 AbstractCegarLoop]: Abstraction has 12979 states and 19211 transitions. [2022-07-13 23:03:40,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-13 23:03:40,305 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 19211 transitions. [2022-07-13 23:03:40,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-13 23:03:40,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:40,312 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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] [2022-07-13 23:03:40,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 23:03:40,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:40,533 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:40,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:40,534 INFO L85 PathProgramCache]: Analyzing trace with hash -790533511, now seen corresponding path program 1 times [2022-07-13 23:03:40,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:40,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067191678] [2022-07-13 23:03:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:40,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:03:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:03:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:03:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:03:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:03:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:03:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:03:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:03:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:03:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:03:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:03:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:03:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 23:03:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 23:03:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:40,753 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-13 23:03:40,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:40,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067191678] [2022-07-13 23:03:40,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067191678] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:40,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163972893] [2022-07-13 23:03:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:40,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:40,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:03:40,756 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) [2022-07-13 23:03:40,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 23:03:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:41,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:03:41,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:03:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 23:03:41,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:03:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 23:03:41,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163972893] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 23:03:41,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 23:03:41,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2022-07-13 23:03:41,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528992915] [2022-07-13 23:03:41,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 23:03:41,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 23:03:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 23:03:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:03:41,642 INFO L87 Difference]: Start difference. First operand 12979 states and 19211 transitions. Second operand has 10 states, 10 states have (on average 14.7) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (41), 4 states have call predecessors, (41), 3 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-13 23:03:44,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:44,230 INFO L93 Difference]: Finished difference Result 26772 states and 40143 transitions. [2022-07-13 23:03:44,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 23:03:44,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (41), 4 states have call predecessors, (41), 3 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 157 [2022-07-13 23:03:44,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:44,285 INFO L225 Difference]: With dead ends: 26772 [2022-07-13 23:03:44,286 INFO L226 Difference]: Without dead ends: 13795 [2022-07-13 23:03:44,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 347 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-07-13 23:03:44,327 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 1061 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:44,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 4493 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 23:03:44,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13795 states. [2022-07-13 23:03:44,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13795 to 13615. [2022-07-13 23:03:45,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13615 states, 10195 states have (on average 1.3651790093182934) internal successors, (13918), 10358 states have internal predecessors, (13918), 3115 states have call successors, (3115), 269 states have call predecessors, (3115), 304 states have return successors, (3482), 3059 states have call predecessors, (3482), 3110 states have call successors, (3482) [2022-07-13 23:03:45,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13615 states to 13615 states and 20515 transitions. [2022-07-13 23:03:45,082 INFO L78 Accepts]: Start accepts. Automaton has 13615 states and 20515 transitions. Word has length 157 [2022-07-13 23:03:45,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:45,082 INFO L495 AbstractCegarLoop]: Abstraction has 13615 states and 20515 transitions. [2022-07-13 23:03:45,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (41), 4 states have call predecessors, (41), 3 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-13 23:03:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 13615 states and 20515 transitions. [2022-07-13 23:03:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-13 23:03:45,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:45,090 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 23:03:45,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 23:03:45,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-13 23:03:45,303 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:45,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:45,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1331256974, now seen corresponding path program 1 times [2022-07-13 23:03:45,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:45,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83796394] [2022-07-13 23:03:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:45,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:03:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:03:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 23:03:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 23:03:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-13 23:03:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:45,635 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-13 23:03:45,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:45,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83796394] [2022-07-13 23:03:45,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83796394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:45,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:03:45,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 23:03:45,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513075889] [2022-07-13 23:03:45,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:45,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 23:03:45,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:45,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 23:03:45,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-13 23:03:45,639 INFO L87 Difference]: Start difference. First operand 13615 states and 20515 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-13 23:03:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:47,807 INFO L93 Difference]: Finished difference Result 24818 states and 37475 transitions. [2022-07-13 23:03:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 23:03:47,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 163 [2022-07-13 23:03:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:47,845 INFO L225 Difference]: With dead ends: 24818 [2022-07-13 23:03:47,845 INFO L226 Difference]: Without dead ends: 11605 [2022-07-13 23:03:47,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:03:47,989 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 489 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:47,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 3577 Invalid, 2058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 23:03:47,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11605 states. [2022-07-13 23:03:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11605 to 11538. [2022-07-13 23:03:48,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11538 states, 8674 states have (on average 1.3645376988701867) internal successors, (11836), 8834 states have internal predecessors, (11836), 2561 states have call successors, (2561), 267 states have call predecessors, (2561), 302 states have return successors, (2827), 2496 states have call predecessors, (2827), 2557 states have call successors, (2827) [2022-07-13 23:03:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11538 states to 11538 states and 17224 transitions. [2022-07-13 23:03:48,392 INFO L78 Accepts]: Start accepts. Automaton has 11538 states and 17224 transitions. Word has length 163 [2022-07-13 23:03:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:48,393 INFO L495 AbstractCegarLoop]: Abstraction has 11538 states and 17224 transitions. [2022-07-13 23:03:48,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-13 23:03:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 11538 states and 17224 transitions. [2022-07-13 23:03:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-13 23:03:48,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:48,400 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:03:48,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 23:03:48,401 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash -689583713, now seen corresponding path program 1 times [2022-07-13 23:03:48,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:48,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017283393] [2022-07-13 23:03:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:03:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:03:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 23:03:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 23:03:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:03:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:03:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-13 23:03:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 23:03:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-13 23:03:48,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:48,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017283393] [2022-07-13 23:03:48,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017283393] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:48,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:03:48,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 23:03:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200490489] [2022-07-13 23:03:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:48,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 23:03:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:48,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 23:03:48,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-13 23:03:48,679 INFO L87 Difference]: Start difference. First operand 11538 states and 17224 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 23:03:50,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:50,486 INFO L93 Difference]: Finished difference Result 19423 states and 29174 transitions. [2022-07-13 23:03:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 23:03:50,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 165 [2022-07-13 23:03:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:50,508 INFO L225 Difference]: With dead ends: 19423 [2022-07-13 23:03:50,508 INFO L226 Difference]: Without dead ends: 8347 [2022-07-13 23:03:50,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-13 23:03:50,533 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 978 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:50,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 2515 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 23:03:50,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8347 states. [2022-07-13 23:03:50,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8347 to 8292. [2022-07-13 23:03:50,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8292 states, 6233 states have (on average 1.362907107331943) internal successors, (8495), 6352 states have internal predecessors, (8495), 1840 states have call successors, (1840), 201 states have call predecessors, (1840), 218 states have return successors, (1973), 1777 states have call predecessors, (1973), 1832 states have call successors, (1973) [2022-07-13 23:03:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8292 states to 8292 states and 12308 transitions. [2022-07-13 23:03:50,798 INFO L78 Accepts]: Start accepts. Automaton has 8292 states and 12308 transitions. Word has length 165 [2022-07-13 23:03:50,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:50,798 INFO L495 AbstractCegarLoop]: Abstraction has 8292 states and 12308 transitions. [2022-07-13 23:03:50,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 23:03:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand 8292 states and 12308 transitions. [2022-07-13 23:03:50,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-13 23:03:50,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:50,805 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:03:50,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 23:03:50,805 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:50,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:50,806 INFO L85 PathProgramCache]: Analyzing trace with hash 391596378, now seen corresponding path program 1 times [2022-07-13 23:03:50,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:50,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21486004] [2022-07-13 23:03:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:50,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:50,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:03:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:03:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 23:03:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 23:03:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:03:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:03:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-13 23:03:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-13 23:03:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 23:03:51,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:51,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21486004] [2022-07-13 23:03:51,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21486004] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:51,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311434451] [2022-07-13 23:03:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:51,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:51,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:03:51,325 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) [2022-07-13 23:03:51,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 23:03:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:52,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 2147 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 23:03:52,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:03:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-13 23:03:52,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:03:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-13 23:03:53,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311434451] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:53,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-13 23:03:53,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21, 10] total 34 [2022-07-13 23:03:53,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702960516] [2022-07-13 23:03:53,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:53,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 23:03:53,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:53,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 23:03:53,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=992, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 23:03:53,048 INFO L87 Difference]: Start difference. First operand 8292 states and 12308 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 8 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2022-07-13 23:03:56,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:56,725 INFO L93 Difference]: Finished difference Result 28694 states and 43303 transitions. [2022-07-13 23:03:56,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 23:03:56,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 8 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 167 [2022-07-13 23:03:56,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:03:56,801 INFO L225 Difference]: With dead ends: 28694 [2022-07-13 23:03:56,801 INFO L226 Difference]: Without dead ends: 24262 [2022-07-13 23:03:56,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 367 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1429, Unknown=0, NotChecked=0, Total=1640 [2022-07-13 23:03:56,824 INFO L413 NwaCegarLoop]: 1492 mSDtfsCounter, 4238 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 1476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 4168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1476 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-13 23:03:56,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4338 Valid, 3760 Invalid, 4168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1476 Valid, 2692 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-13 23:03:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24262 states. [2022-07-13 23:03:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24262 to 18718. [2022-07-13 23:03:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18718 states, 14079 states have (on average 1.3699836636124725) internal successors, (19288), 14344 states have internal predecessors, (19288), 4199 states have call successors, (4199), 404 states have call predecessors, (4199), 439 states have return successors, (4488), 4062 states have call predecessors, (4488), 4186 states have call successors, (4488) [2022-07-13 23:03:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18718 states to 18718 states and 27975 transitions. [2022-07-13 23:03:57,613 INFO L78 Accepts]: Start accepts. Automaton has 18718 states and 27975 transitions. Word has length 167 [2022-07-13 23:03:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:03:57,614 INFO L495 AbstractCegarLoop]: Abstraction has 18718 states and 27975 transitions. [2022-07-13 23:03:57,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 8 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2022-07-13 23:03:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 18718 states and 27975 transitions. [2022-07-13 23:03:57,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 23:03:57,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:03:57,621 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:03:57,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 23:03:57,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-13 23:03:57,836 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:03:57,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:03:57,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1619287053, now seen corresponding path program 1 times [2022-07-13 23:03:57,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:03:57,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187224884] [2022-07-13 23:03:57,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:57,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:03:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:03:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:03:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:03:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:03:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:03:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:03:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:03:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:03:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:03:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:03:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:03:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:03:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:03:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:03:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 23:03:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 23:03:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:03:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:03:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 23:03:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 23:03:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-13 23:03:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-13 23:03:58,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:03:58,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187224884] [2022-07-13 23:03:58,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187224884] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:03:58,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470866776] [2022-07-13 23:03:58,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:03:58,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:03:58,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:03:58,217 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) [2022-07-13 23:03:58,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 23:03:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:03:58,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 23:03:58,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:03:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-13 23:03:58,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:03:58,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470866776] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:03:58,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:03:58,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2022-07-13 23:03:58,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611350101] [2022-07-13 23:03:58,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:03:58,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:03:58,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:03:58,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:03:58,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-13 23:03:58,969 INFO L87 Difference]: Start difference. First operand 18718 states and 27975 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 23:03:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:03:59,916 INFO L93 Difference]: Finished difference Result 29416 states and 44855 transitions. [2022-07-13 23:03:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:03:59,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 178 [2022-07-13 23:03:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:00,006 INFO L225 Difference]: With dead ends: 29416 [2022-07-13 23:04:00,006 INFO L226 Difference]: Without dead ends: 29397 [2022-07-13 23:04:00,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:04:00,022 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 1310 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:00,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 2213 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 23:04:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29397 states. [2022-07-13 23:04:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29397 to 18760. [2022-07-13 23:04:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18760 states, 14107 states have (on average 1.3678315729779542) internal successors, (19296), 14372 states have internal predecessors, (19296), 4209 states have call successors, (4209), 408 states have call predecessors, (4209), 443 states have return successors, (4498), 4072 states have call predecessors, (4498), 4196 states have call successors, (4498) [2022-07-13 23:04:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18760 states to 18760 states and 28003 transitions. [2022-07-13 23:04:00,828 INFO L78 Accepts]: Start accepts. Automaton has 18760 states and 28003 transitions. Word has length 178 [2022-07-13 23:04:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:00,829 INFO L495 AbstractCegarLoop]: Abstraction has 18760 states and 28003 transitions. [2022-07-13 23:04:00,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 23:04:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 18760 states and 28003 transitions. [2022-07-13 23:04:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-13 23:04:00,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:00,836 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:04:00,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-13 23:04:01,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:01,052 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:01,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:01,052 INFO L85 PathProgramCache]: Analyzing trace with hash 150775727, now seen corresponding path program 1 times [2022-07-13 23:04:01,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:01,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319037992] [2022-07-13 23:04:01,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:01,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:04:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:04:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:04:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:04:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:04:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:04:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:04:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:04:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:04:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:04:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 23:04:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 23:04:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:04:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 23:04:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 23:04:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-13 23:04:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 23:04:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-13 23:04:01,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:01,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319037992] [2022-07-13 23:04:01,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319037992] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:01,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:04:01,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 23:04:01,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116687252] [2022-07-13 23:04:01,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:01,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 23:04:01,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:01,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 23:04:01,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:04:01,429 INFO L87 Difference]: Start difference. First operand 18760 states and 28003 transitions. Second operand has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 23:04:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:04,268 INFO L93 Difference]: Finished difference Result 37565 states and 56387 transitions. [2022-07-13 23:04:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 23:04:04,268 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2022-07-13 23:04:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:04,320 INFO L225 Difference]: With dead ends: 37565 [2022-07-13 23:04:04,320 INFO L226 Difference]: Without dead ends: 18901 [2022-07-13 23:04:04,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-13 23:04:04,356 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 504 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 4846 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:04,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 4846 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 23:04:04,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18901 states. [2022-07-13 23:04:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18901 to 18806. [2022-07-13 23:04:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18806 states, 14145 states have (on average 1.3668434075645104) internal successors, (19334), 14403 states have internal predecessors, (19334), 4209 states have call successors, (4209), 408 states have call predecessors, (4209), 451 states have return successors, (4550), 4087 states have call predecessors, (4550), 4196 states have call successors, (4550) [2022-07-13 23:04:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18806 states to 18806 states and 28093 transitions. [2022-07-13 23:04:05,002 INFO L78 Accepts]: Start accepts. Automaton has 18806 states and 28093 transitions. Word has length 169 [2022-07-13 23:04:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:05,003 INFO L495 AbstractCegarLoop]: Abstraction has 18806 states and 28093 transitions. [2022-07-13 23:04:05,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 23:04:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 18806 states and 28093 transitions. [2022-07-13 23:04:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-13 23:04:05,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:05,008 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:04:05,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 23:04:05,009 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:05,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:05,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2081006576, now seen corresponding path program 1 times [2022-07-13 23:04:05,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:05,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529885503] [2022-07-13 23:04:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:05,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:04:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:04:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:04:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:04:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:04:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:04:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:04:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:04:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:04:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:04:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 23:04:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 23:04:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:04:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 23:04:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 23:04:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-13 23:04:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 23:04:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-13 23:04:05,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:05,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529885503] [2022-07-13 23:04:05,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529885503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:05,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:04:05,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 23:04:05,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769070742] [2022-07-13 23:04:05,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:05,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 23:04:05,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:05,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 23:04:05,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:04:05,208 INFO L87 Difference]: Start difference. First operand 18806 states and 28093 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-13 23:04:07,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:07,509 INFO L93 Difference]: Finished difference Result 37314 states and 56056 transitions. [2022-07-13 23:04:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 23:04:07,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 169 [2022-07-13 23:04:07,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:07,581 INFO L225 Difference]: With dead ends: 37314 [2022-07-13 23:04:07,581 INFO L226 Difference]: Without dead ends: 18955 [2022-07-13 23:04:07,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:04:07,621 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 340 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:07,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 3056 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 23:04:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18955 states. [2022-07-13 23:04:08,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18955 to 18806. [2022-07-13 23:04:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18806 states, 14145 states have (on average 1.3664192294096853) internal successors, (19328), 14403 states have internal predecessors, (19328), 4209 states have call successors, (4209), 408 states have call predecessors, (4209), 451 states have return successors, (4550), 4087 states have call predecessors, (4550), 4196 states have call successors, (4550) [2022-07-13 23:04:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18806 states to 18806 states and 28087 transitions. [2022-07-13 23:04:08,343 INFO L78 Accepts]: Start accepts. Automaton has 18806 states and 28087 transitions. Word has length 169 [2022-07-13 23:04:08,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:08,344 INFO L495 AbstractCegarLoop]: Abstraction has 18806 states and 28087 transitions. [2022-07-13 23:04:08,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-13 23:04:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 18806 states and 28087 transitions. [2022-07-13 23:04:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-13 23:04:08,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:08,350 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:04:08,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 23:04:08,350 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:08,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:08,351 INFO L85 PathProgramCache]: Analyzing trace with hash 312486405, now seen corresponding path program 1 times [2022-07-13 23:04:08,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:08,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701086708] [2022-07-13 23:04:08,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:08,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:04:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:04:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:04:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:04:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:04:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:04:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:04:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:04:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:04:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:04:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:04:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:04:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:04:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 23:04:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 23:04:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 23:04:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 23:04:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-13 23:04:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-13 23:04:08,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:08,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701086708] [2022-07-13 23:04:08,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701086708] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:04:08,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493569418] [2022-07-13 23:04:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:08,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:08,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:04:08,664 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) [2022-07-13 23:04:08,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 23:04:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:09,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:04:09,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:04:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-13 23:04:09,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:04:09,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493569418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:09,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:04:09,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2022-07-13 23:04:09,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378992953] [2022-07-13 23:04:09,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:09,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:04:09,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:09,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:04:09,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:04:09,672 INFO L87 Difference]: Start difference. First operand 18806 states and 28087 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 23:04:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:10,921 INFO L93 Difference]: Finished difference Result 34198 states and 51149 transitions. [2022-07-13 23:04:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:04:10,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 183 [2022-07-13 23:04:10,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:10,974 INFO L225 Difference]: With dead ends: 34198 [2022-07-13 23:04:10,974 INFO L226 Difference]: Without dead ends: 18971 [2022-07-13 23:04:11,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:04:11,010 INFO L413 NwaCegarLoop]: 1333 mSDtfsCounter, 704 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:11,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 2139 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 23:04:11,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18971 states. [2022-07-13 23:04:11,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18971 to 18806. [2022-07-13 23:04:11,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18806 states, 14145 states have (on average 1.3630965005302227) internal successors, (19281), 14403 states have internal predecessors, (19281), 4209 states have call successors, (4209), 408 states have call predecessors, (4209), 451 states have return successors, (4550), 4087 states have call predecessors, (4550), 4196 states have call successors, (4550) [2022-07-13 23:04:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18806 states to 18806 states and 28040 transitions. [2022-07-13 23:04:11,858 INFO L78 Accepts]: Start accepts. Automaton has 18806 states and 28040 transitions. Word has length 183 [2022-07-13 23:04:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:11,859 INFO L495 AbstractCegarLoop]: Abstraction has 18806 states and 28040 transitions. [2022-07-13 23:04:11,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 23:04:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 18806 states and 28040 transitions. [2022-07-13 23:04:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-13 23:04:11,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:11,863 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:04:11,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 23:04:12,064 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,SelfDestructingSolverStorable21 [2022-07-13 23:04:12,064 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1465150929, now seen corresponding path program 1 times [2022-07-13 23:04:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:12,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973844833] [2022-07-13 23:04:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:12,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:04:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:04:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:04:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:04:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:04:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:04:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:04:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:04:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:04:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:04:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 23:04:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 23:04:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:04:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 23:04:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-13 23:04:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-13 23:04:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-13 23:04:12,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:12,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973844833] [2022-07-13 23:04:12,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973844833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:12,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:04:12,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 23:04:12,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725618287] [2022-07-13 23:04:12,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:12,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 23:04:12,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:12,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 23:04:12,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:04:12,302 INFO L87 Difference]: Start difference. First operand 18806 states and 28040 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 23:04:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:15,071 INFO L93 Difference]: Finished difference Result 37282 states and 55931 transitions. [2022-07-13 23:04:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 23:04:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 174 [2022-07-13 23:04:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:15,134 INFO L225 Difference]: With dead ends: 37282 [2022-07-13 23:04:15,134 INFO L226 Difference]: Without dead ends: 18929 [2022-07-13 23:04:15,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:04:15,178 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 331 mSDsluCounter, 2593 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:15,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 3433 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 23:04:15,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18929 states. [2022-07-13 23:04:15,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18929 to 18815. [2022-07-13 23:04:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18815 states, 14154 states have (on average 1.3628656210258585) internal successors, (19290), 14412 states have internal predecessors, (19290), 4209 states have call successors, (4209), 408 states have call predecessors, (4209), 451 states have return successors, (4550), 4087 states have call predecessors, (4550), 4196 states have call successors, (4550) [2022-07-13 23:04:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18815 states to 18815 states and 28049 transitions. [2022-07-13 23:04:15,991 INFO L78 Accepts]: Start accepts. Automaton has 18815 states and 28049 transitions. Word has length 174 [2022-07-13 23:04:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:15,991 INFO L495 AbstractCegarLoop]: Abstraction has 18815 states and 28049 transitions. [2022-07-13 23:04:15,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 23:04:15,992 INFO L276 IsEmpty]: Start isEmpty. Operand 18815 states and 28049 transitions. [2022-07-13 23:04:15,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-13 23:04:15,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:15,996 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:04:15,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 23:04:15,996 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:15,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2066520463, now seen corresponding path program 1 times [2022-07-13 23:04:15,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:15,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691121110] [2022-07-13 23:04:15,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:04:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:04:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:04:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:04:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:04:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:04:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:04:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:04:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:04:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:04:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 23:04:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 23:04:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:04:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 23:04:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:04:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-13 23:04:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-13 23:04:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-13 23:04:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-13 23:04:16,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:16,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691121110] [2022-07-13 23:04:16,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691121110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:16,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:04:16,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 23:04:16,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230323128] [2022-07-13 23:04:16,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:16,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 23:04:16,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:16,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 23:04:16,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-13 23:04:16,264 INFO L87 Difference]: Start difference. First operand 18815 states and 28049 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:04:20,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:20,021 INFO L93 Difference]: Finished difference Result 52847 states and 80686 transitions. [2022-07-13 23:04:20,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 23:04:20,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2022-07-13 23:04:20,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:20,238 INFO L225 Difference]: With dead ends: 52847 [2022-07-13 23:04:20,239 INFO L226 Difference]: Without dead ends: 34494 [2022-07-13 23:04:20,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-07-13 23:04:20,270 INFO L413 NwaCegarLoop]: 1249 mSDtfsCounter, 873 mSDsluCounter, 4263 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 5512 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:20,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 5512 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-13 23:04:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34494 states. [2022-07-13 23:04:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34494 to 18961. [2022-07-13 23:04:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18961 states, 14274 states have (on average 1.361776656858624) internal successors, (19438), 14524 states have internal predecessors, (19438), 4226 states have call successors, (4226), 408 states have call predecessors, (4226), 460 states have return successors, (4703), 4121 states have call predecessors, (4703), 4213 states have call successors, (4703) [2022-07-13 23:04:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18961 states to 18961 states and 28367 transitions. [2022-07-13 23:04:21,120 INFO L78 Accepts]: Start accepts. Automaton has 18961 states and 28367 transitions. Word has length 192 [2022-07-13 23:04:21,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:21,121 INFO L495 AbstractCegarLoop]: Abstraction has 18961 states and 28367 transitions. [2022-07-13 23:04:21,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:04:21,121 INFO L276 IsEmpty]: Start isEmpty. Operand 18961 states and 28367 transitions. [2022-07-13 23:04:21,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-13 23:04:21,125 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:21,125 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-07-13 23:04:21,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 23:04:21,125 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:21,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:21,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1505820685, now seen corresponding path program 1 times [2022-07-13 23:04:21,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:21,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953320027] [2022-07-13 23:04:21,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:21,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 23:04:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 23:04:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:04:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:04:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:04:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:04:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 23:04:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:04:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:04:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:04:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 23:04:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 23:04:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:04:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 23:04:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:04:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-13 23:04:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-13 23:04:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-13 23:04:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-13 23:04:21,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:21,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953320027] [2022-07-13 23:04:21,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953320027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:21,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:04:21,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 23:04:21,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783415023] [2022-07-13 23:04:21,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:21,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:04:21,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:21,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:04:21,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:04:21,410 INFO L87 Difference]: Start difference. First operand 18961 states and 28367 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:04:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:24,369 INFO L93 Difference]: Finished difference Result 53092 states and 81135 transitions. [2022-07-13 23:04:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:04:24,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2022-07-13 23:04:24,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:24,473 INFO L225 Difference]: With dead ends: 53092 [2022-07-13 23:04:24,474 INFO L226 Difference]: Without dead ends: 34593 [2022-07-13 23:04:24,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:04:24,512 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 855 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 3397 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:24,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 3397 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 23:04:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34593 states. [2022-07-13 23:04:25,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34593 to 18961. [2022-07-13 23:04:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18961 states, 14274 states have (on average 1.3605856802578113) internal successors, (19421), 14524 states have internal predecessors, (19421), 4226 states have call successors, (4226), 408 states have call predecessors, (4226), 460 states have return successors, (4703), 4121 states have call predecessors, (4703), 4213 states have call successors, (4703) [2022-07-13 23:04:25,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18961 states to 18961 states and 28350 transitions. [2022-07-13 23:04:25,696 INFO L78 Accepts]: Start accepts. Automaton has 18961 states and 28350 transitions. Word has length 192 [2022-07-13 23:04:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:25,697 INFO L495 AbstractCegarLoop]: Abstraction has 18961 states and 28350 transitions. [2022-07-13 23:04:25,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:04:25,697 INFO L276 IsEmpty]: Start isEmpty. Operand 18961 states and 28350 transitions. [2022-07-13 23:04:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-13 23:04:25,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:25,703 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 23:04:25,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-13 23:04:25,704 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:25,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1624526787, now seen corresponding path program 1 times [2022-07-13 23:04:25,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:25,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262471468] [2022-07-13 23:04:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:25,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:25,775 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 23:04:25,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152779991] [2022-07-13 23:04:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:25,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:25,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:04:25,780 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:04:25,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 23:04:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:26,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 2170 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 23:04:26,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:04:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-13 23:04:26,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:04:26,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:26,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262471468] [2022-07-13 23:04:26,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 23:04:26,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152779991] [2022-07-13 23:04:26,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152779991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:26,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:04:26,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 23:04:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075805219] [2022-07-13 23:04:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:26,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 23:04:26,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:26,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 23:04:26,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:04:26,697 INFO L87 Difference]: Start difference. First operand 18961 states and 28350 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-13 23:04:29,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:29,299 INFO L93 Difference]: Finished difference Result 68700 states and 104885 transitions. [2022-07-13 23:04:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 23:04:29,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 193 [2022-07-13 23:04:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:29,460 INFO L225 Difference]: With dead ends: 68700 [2022-07-13 23:04:29,461 INFO L226 Difference]: Without dead ends: 50201 [2022-07-13 23:04:29,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-13 23:04:29,500 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 1119 mSDsluCounter, 5514 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 6937 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:29,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 6937 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 23:04:29,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50201 states. [2022-07-13 23:04:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50201 to 19148. [2022-07-13 23:04:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19148 states, 14427 states have (on average 1.3600887225341374) internal successors, (19622), 14660 states have internal predecessors, (19622), 4260 states have call successors, (4260), 408 states have call predecessors, (4260), 460 states have return successors, (4737), 4172 states have call predecessors, (4737), 4247 states have call successors, (4737) [2022-07-13 23:04:31,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19148 states to 19148 states and 28619 transitions. [2022-07-13 23:04:31,082 INFO L78 Accepts]: Start accepts. Automaton has 19148 states and 28619 transitions. Word has length 193 [2022-07-13 23:04:31,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:31,082 INFO L495 AbstractCegarLoop]: Abstraction has 19148 states and 28619 transitions. [2022-07-13 23:04:31,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-13 23:04:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 19148 states and 28619 transitions. [2022-07-13 23:04:31,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-13 23:04:31,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:31,087 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 23:04:31,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 23:04:31,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-13 23:04:31,296 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:31,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:31,296 INFO L85 PathProgramCache]: Analyzing trace with hash -237741377, now seen corresponding path program 1 times [2022-07-13 23:04:31,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:31,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781276127] [2022-07-13 23:04:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:31,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:31,357 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 23:04:31,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118689110] [2022-07-13 23:04:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:31,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:31,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:04:31,360 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:04:31,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 23:04:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:32,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 2169 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:04:32,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:04:32,174 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-13 23:04:32,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:04:32,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:32,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781276127] [2022-07-13 23:04:32,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 23:04:32,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118689110] [2022-07-13 23:04:32,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118689110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:32,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:04:32,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:04:32,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303854527] [2022-07-13 23:04:32,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:32,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:04:32,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:32,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:04:32,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:04:32,178 INFO L87 Difference]: Start difference. First operand 19148 states and 28619 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-13 23:04:34,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:34,100 INFO L93 Difference]: Finished difference Result 53484 states and 80971 transitions. [2022-07-13 23:04:34,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:04:34,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 193 [2022-07-13 23:04:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:34,198 INFO L225 Difference]: With dead ends: 53484 [2022-07-13 23:04:34,199 INFO L226 Difference]: Without dead ends: 34798 [2022-07-13 23:04:34,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:04:34,237 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 601 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:34,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2278 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 23:04:34,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34798 states. [2022-07-13 23:04:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34798 to 24272. [2022-07-13 23:04:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24272 states, 18399 states have (on average 1.3679547801510952) internal successors, (25169), 18654 states have internal predecessors, (25169), 5412 states have call successors, (5412), 408 states have call predecessors, (5412), 460 states have return successors, (6013), 5302 states have call predecessors, (6013), 5399 states have call successors, (6013) [2022-07-13 23:04:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24272 states to 24272 states and 36594 transitions. [2022-07-13 23:04:36,129 INFO L78 Accepts]: Start accepts. Automaton has 24272 states and 36594 transitions. Word has length 193 [2022-07-13 23:04:36,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:36,130 INFO L495 AbstractCegarLoop]: Abstraction has 24272 states and 36594 transitions. [2022-07-13 23:04:36,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-13 23:04:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 24272 states and 36594 transitions. [2022-07-13 23:04:36,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-13 23:04:36,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:36,135 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 23:04:36,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 23:04:36,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-13 23:04:36,336 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:36,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:36,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1950401645, now seen corresponding path program 1 times [2022-07-13 23:04:36,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:36,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192439744] [2022-07-13 23:04:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:36,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:04:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:04:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:04:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:04:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:04:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:04:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:04:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:04:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:04:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:04:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:04:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:04:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:04:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 23:04:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 23:04:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 23:04:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 23:04:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 23:04:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-13 23:04:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-13 23:04:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-13 23:04:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-13 23:04:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-13 23:04:36,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:36,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192439744] [2022-07-13 23:04:36,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192439744] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:04:36,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103814264] [2022-07-13 23:04:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:36,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:36,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:04:36,707 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:04:36,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 23:04:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:37,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 2617 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-13 23:04:37,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:04:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-13 23:04:37,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:04:37,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103814264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:37,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:04:37,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 11 [2022-07-13 23:04:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004842678] [2022-07-13 23:04:37,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:37,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 23:04:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:37,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 23:04:37,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:04:37,648 INFO L87 Difference]: Start difference. First operand 24272 states and 36594 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 23:04:39,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:39,095 INFO L93 Difference]: Finished difference Result 46629 states and 70455 transitions. [2022-07-13 23:04:39,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 23:04:39,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 212 [2022-07-13 23:04:39,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:39,150 INFO L225 Difference]: With dead ends: 46629 [2022-07-13 23:04:39,150 INFO L226 Difference]: Without dead ends: 24342 [2022-07-13 23:04:39,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:04:39,188 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 2 mSDsluCounter, 5145 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6005 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:39,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6005 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:04:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24342 states. [2022-07-13 23:04:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24342 to 24282. [2022-07-13 23:04:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24282 states, 18409 states have (on average 1.3677549024933457) internal successors, (25179), 18659 states have internal predecessors, (25179), 5412 states have call successors, (5412), 408 states have call predecessors, (5412), 460 states have return successors, (6006), 5307 states have call predecessors, (6006), 5399 states have call successors, (6006) [2022-07-13 23:04:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24282 states to 24282 states and 36597 transitions. [2022-07-13 23:04:41,011 INFO L78 Accepts]: Start accepts. Automaton has 24282 states and 36597 transitions. Word has length 212 [2022-07-13 23:04:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:41,012 INFO L495 AbstractCegarLoop]: Abstraction has 24282 states and 36597 transitions. [2022-07-13 23:04:41,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 23:04:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 24282 states and 36597 transitions. [2022-07-13 23:04:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-13 23:04:41,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:41,017 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 23:04:41,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 23:04:41,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-13 23:04:41,218 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:41,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:41,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1411211314, now seen corresponding path program 2 times [2022-07-13 23:04:41,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:41,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722067343] [2022-07-13 23:04:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:41,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:04:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:04:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:04:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:04:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:04:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:04:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:04:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:04:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:04:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:04:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:04:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:04:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:04:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 23:04:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 23:04:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 23:04:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 23:04:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 23:04:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-13 23:04:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-13 23:04:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-13 23:04:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-13 23:04:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-13 23:04:41,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:41,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722067343] [2022-07-13 23:04:41,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722067343] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:04:41,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047319258] [2022-07-13 23:04:41,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 23:04:41,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:41,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:04:41,572 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:04:41,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 23:04:42,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 23:04:42,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 23:04:42,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 2626 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-13 23:04:42,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:04:42,541 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-07-13 23:04:42,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:04:42,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047319258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:42,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:04:42,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 11 [2022-07-13 23:04:42,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30342442] [2022-07-13 23:04:42,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:42,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 23:04:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 23:04:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:04:42,544 INFO L87 Difference]: Start difference. First operand 24282 states and 36597 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 23:04:44,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:44,038 INFO L93 Difference]: Finished difference Result 46600 states and 70391 transitions. [2022-07-13 23:04:44,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 23:04:44,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 212 [2022-07-13 23:04:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:44,096 INFO L225 Difference]: With dead ends: 46600 [2022-07-13 23:04:44,096 INFO L226 Difference]: Without dead ends: 24352 [2022-07-13 23:04:44,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:04:44,130 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 2 mSDsluCounter, 5160 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6023 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:44,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6023 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:04:44,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24352 states. [2022-07-13 23:04:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24352 to 24292. [2022-07-13 23:04:45,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 18419 states have (on average 1.3675552418698083) internal successors, (25189), 18664 states have internal predecessors, (25189), 5412 states have call successors, (5412), 408 states have call predecessors, (5412), 460 states have return successors, (5999), 5312 states have call predecessors, (5999), 5399 states have call successors, (5999) [2022-07-13 23:04:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 36600 transitions. [2022-07-13 23:04:45,821 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 36600 transitions. Word has length 212 [2022-07-13 23:04:45,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:45,822 INFO L495 AbstractCegarLoop]: Abstraction has 24292 states and 36600 transitions. [2022-07-13 23:04:45,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 23:04:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 36600 transitions. [2022-07-13 23:04:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-13 23:04:45,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:45,827 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 23:04:45,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-13 23:04:46,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-13 23:04:46,028 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:46,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:46,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1424744115, now seen corresponding path program 3 times [2022-07-13 23:04:46,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:46,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847597715] [2022-07-13 23:04:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:46,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:04:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:04:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:04:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:04:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:04:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:04:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:04:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:04:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:04:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:04:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:04:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:04:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:04:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 23:04:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 23:04:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 23:04:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 23:04:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 23:04:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-13 23:04:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-13 23:04:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-13 23:04:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-13 23:04:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-07-13 23:04:47,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:04:47,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847597715] [2022-07-13 23:04:47,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847597715] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:04:47,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724908656] [2022-07-13 23:04:47,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 23:04:47,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:47,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:04:47,431 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:04:47,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 23:04:48,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 23:04:48,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 23:04:48,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 23:04:48,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:04:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-13 23:04:48,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:04:48,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724908656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:04:48,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:04:48,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [31] total 33 [2022-07-13 23:04:48,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298114942] [2022-07-13 23:04:48,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:04:48,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:04:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:04:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:04:48,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=970, Unknown=0, NotChecked=0, Total=1056 [2022-07-13 23:04:48,357 INFO L87 Difference]: Start difference. First operand 24292 states and 36600 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-13 23:04:49,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:04:49,758 INFO L93 Difference]: Finished difference Result 48146 states and 72785 transitions. [2022-07-13 23:04:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:04:49,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 212 [2022-07-13 23:04:49,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:04:49,828 INFO L225 Difference]: With dead ends: 48146 [2022-07-13 23:04:49,828 INFO L226 Difference]: Without dead ends: 24296 [2022-07-13 23:04:49,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=1032, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 23:04:49,876 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 2 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:04:49,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2573 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:04:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24296 states. [2022-07-13 23:04:51,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24296 to 24288. [2022-07-13 23:04:51,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24288 states, 18420 states have (on average 1.3674267100977198) internal successors, (25188), 18661 states have internal predecessors, (25188), 5409 states have call successors, (5409), 407 states have call predecessors, (5409), 458 states have return successors, (5986), 5312 states have call predecessors, (5986), 5396 states have call successors, (5986) [2022-07-13 23:04:51,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24288 states to 24288 states and 36583 transitions. [2022-07-13 23:04:51,523 INFO L78 Accepts]: Start accepts. Automaton has 24288 states and 36583 transitions. Word has length 212 [2022-07-13 23:04:51,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:04:51,524 INFO L495 AbstractCegarLoop]: Abstraction has 24288 states and 36583 transitions. [2022-07-13 23:04:51,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-13 23:04:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 24288 states and 36583 transitions. [2022-07-13 23:04:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-13 23:04:51,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:04:51,532 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 23:04:51,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 23:04:51,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:04:51,748 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:04:51,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:04:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1134294294, now seen corresponding path program 1 times [2022-07-13 23:04:51,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:04:51,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567807975] [2022-07-13 23:04:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:04:51,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:04:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 23:04:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:04:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:04:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 23:04:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:04:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:04:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:04:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:04:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 23:04:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 23:04:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:04:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-13 23:04:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:04:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:04:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 23:04:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 23:04:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:04:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 23:04:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 23:04:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-13 23:04:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-13 23:04:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 23:04:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:04:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193