./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:49:01,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:49:01,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:49:01,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:49:01,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:49:01,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:49:01,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:49:01,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:49:01,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:49:01,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:49:01,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:49:01,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:49:01,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:49:01,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:49:01,658 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:49:01,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:49:01,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:49:01,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:49:01,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:49:01,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:49:01,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:49:01,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:49:01,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:49:01,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:49:01,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:49:01,665 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:49:01,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:49:01,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:49:01,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:49:01,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:49:01,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:49:01,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:49:01,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:49:01,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:49:01,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:49:01,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:49:01,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:49:01,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:49:01,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:49:01,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:49:01,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:49:01,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:49:01,671 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa [2024-11-20 08:49:01,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:49:01,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:49:01,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:49:01,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:49:01,975 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:49:01,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2024-11-20 08:49:03,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:49:03,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:49:03,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2024-11-20 08:49:03,741 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/573f39153/ca2d4404818747eba85549d94bba9720/FLAG76fe2f910 [2024-11-20 08:49:03,758 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/573f39153/ca2d4404818747eba85549d94bba9720 [2024-11-20 08:49:03,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:49:03,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:49:03,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:49:03,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:49:03,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:49:03,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:49:03" (1/1) ... [2024-11-20 08:49:03,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d62215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:03, skipping insertion in model container [2024-11-20 08:49:03,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:49:03" (1/1) ... [2024-11-20 08:49:03,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:49:03,990 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-11-20 08:49:04,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:49:04,081 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:49:04,095 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-11-20 08:49:04,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:49:04,156 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:49:04,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04 WrapperNode [2024-11-20 08:49:04,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:49:04,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:49:04,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:49:04,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:49:04,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,248 INFO L138 Inliner]: procedures = 29, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 558 [2024-11-20 08:49:04,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:49:04,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:49:04,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:49:04,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:49:04,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,268 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,302 INFO L175 MemorySlicer]: Split 131 memory accesses to 16 slices as follows [2, 15, 6, 10, 11, 8, 8, 8, 10, 7, 6, 8, 3, 12, 7, 10]. 11 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 18 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1]. [2024-11-20 08:49:04,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:49:04,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:49:04,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:49:04,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:49:04,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (1/1) ... [2024-11-20 08:49:04,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:49:04,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:49:04,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:49:04,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:49:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:49:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:49:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:49:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:49:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:49:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:49:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 08:49:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 08:49:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 08:49:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 08:49:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 08:49:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 08:49:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 08:49:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 08:49:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-20 08:49:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-20 08:49:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-20 08:49:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-20 08:49:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-20 08:49:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-20 08:49:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-20 08:49:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-20 08:49:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-20 08:49:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-20 08:49:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-20 08:49:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-20 08:49:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-20 08:49:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-20 08:49:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-20 08:49:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-20 08:49:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-20 08:49:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-20 08:49:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-20 08:49:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-20 08:49:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-20 08:49:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-20 08:49:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-20 08:49:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-20 08:49:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-20 08:49:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-20 08:49:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-20 08:49:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-20 08:49:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-20 08:49:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-20 08:49:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:49:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 08:49:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 08:49:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 08:49:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 08:49:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 08:49:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 08:49:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 08:49:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 08:49:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-20 08:49:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-20 08:49:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-20 08:49:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-20 08:49:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-20 08:49:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-20 08:49:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:49:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:49:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:49:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:49:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 08:49:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 08:49:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 08:49:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 08:49:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 08:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 08:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 08:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 08:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-20 08:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-20 08:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-20 08:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:49:04,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:49:04,781 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:49:04,784 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:49:05,475 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-20 08:49:05,476 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:49:05,490 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:49:05,491 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:49:05,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:49:05 BoogieIcfgContainer [2024-11-20 08:49:05,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:49:05,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:49:05,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:49:05,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:49:05,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:49:03" (1/3) ... [2024-11-20 08:49:05,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5a3991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:49:05, skipping insertion in model container [2024-11-20 08:49:05,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:04" (2/3) ... [2024-11-20 08:49:05,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5a3991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:49:05, skipping insertion in model container [2024-11-20 08:49:05,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:49:05" (3/3) ... [2024-11-20 08:49:05,501 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-64.i [2024-11-20 08:49:05,519 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:49:05,519 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:49:05,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:49:05,601 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41b4234e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:49:05,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:49:05,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:49:05,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-20 08:49:05,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:05,631 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:05,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:05,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:05,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1185562464, now seen corresponding path program 1 times [2024-11-20 08:49:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:05,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181886298] [2024-11-20 08:49:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:05,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:05,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:49:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:49:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:49:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:49:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:49:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:49:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:49:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:49:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:49:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:49:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:49:06,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:06,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181886298] [2024-11-20 08:49:06,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181886298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:06,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:06,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:49:06,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321410947] [2024-11-20 08:49:06,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:06,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:49:06,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:06,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:49:06,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:49:06,204 INFO L87 Difference]: Start difference. First operand has 129 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:49:06,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:06,249 INFO L93 Difference]: Finished difference Result 251 states and 398 transitions. [2024-11-20 08:49:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:49:06,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2024-11-20 08:49:06,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:06,260 INFO L225 Difference]: With dead ends: 251 [2024-11-20 08:49:06,260 INFO L226 Difference]: Without dead ends: 125 [2024-11-20 08:49:06,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:49:06,269 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:06,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-20 08:49:06,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-20 08:49:06,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 103 states have internal predecessors, (145), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:49:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 185 transitions. [2024-11-20 08:49:06,311 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 185 transitions. Word has length 159 [2024-11-20 08:49:06,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:06,312 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 185 transitions. [2024-11-20 08:49:06,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:49:06,312 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 185 transitions. [2024-11-20 08:49:06,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-20 08:49:06,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:06,320 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:06,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:49:06,320 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:06,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:06,321 INFO L85 PathProgramCache]: Analyzing trace with hash -451419712, now seen corresponding path program 1 times [2024-11-20 08:49:06,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:06,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814965376] [2024-11-20 08:49:06,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:06,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:49:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:49:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:49:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:49:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:49:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:49:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:49:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:49:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:49:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:49:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:06,839 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:49:06,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:06,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814965376] [2024-11-20 08:49:06,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814965376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:06,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:06,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:49:06,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395341213] [2024-11-20 08:49:06,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:06,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:49:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:49:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:06,843 INFO L87 Difference]: Start difference. First operand 125 states and 185 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:49:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:06,893 INFO L93 Difference]: Finished difference Result 249 states and 370 transitions. [2024-11-20 08:49:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:49:06,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2024-11-20 08:49:06,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:06,899 INFO L225 Difference]: With dead ends: 249 [2024-11-20 08:49:06,899 INFO L226 Difference]: Without dead ends: 127 [2024-11-20 08:49:06,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:06,905 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:06,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:06,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-20 08:49:06,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-20 08:49:06,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.4) internal successors, (147), 105 states have internal predecessors, (147), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:49:06,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 187 transitions. [2024-11-20 08:49:06,925 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 187 transitions. Word has length 159 [2024-11-20 08:49:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:06,930 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 187 transitions. [2024-11-20 08:49:06,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:49:06,930 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 187 transitions. [2024-11-20 08:49:06,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-20 08:49:06,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:06,932 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:06,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:49:06,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:06,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:06,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1581974334, now seen corresponding path program 1 times [2024-11-20 08:49:06,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:06,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018644693] [2024-11-20 08:49:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:49:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:49:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:49:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:49:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:49:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:49:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:49:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:49:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:49:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:49:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:49:07,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:07,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018644693] [2024-11-20 08:49:07,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018644693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:07,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:07,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:49:07,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697693319] [2024-11-20 08:49:07,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:07,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:49:07,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:07,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:49:07,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:07,311 INFO L87 Difference]: Start difference. First operand 127 states and 187 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:49:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:07,355 INFO L93 Difference]: Finished difference Result 253 states and 374 transitions. [2024-11-20 08:49:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:49:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-11-20 08:49:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:07,361 INFO L225 Difference]: With dead ends: 253 [2024-11-20 08:49:07,361 INFO L226 Difference]: Without dead ends: 129 [2024-11-20 08:49:07,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:07,366 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:07,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:07,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-20 08:49:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-20 08:49:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 107 states have internal predecessors, (149), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:49:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 189 transitions. [2024-11-20 08:49:07,384 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 189 transitions. Word has length 159 [2024-11-20 08:49:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:07,386 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 189 transitions. [2024-11-20 08:49:07,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:49:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 189 transitions. [2024-11-20 08:49:07,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-20 08:49:07,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:07,390 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:07,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:49:07,391 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:07,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:07,391 INFO L85 PathProgramCache]: Analyzing trace with hash -297805104, now seen corresponding path program 1 times [2024-11-20 08:49:07,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:07,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601101043] [2024-11-20 08:49:07,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:07,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:49:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:49:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:49:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:49:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:49:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:49:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:49:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:49:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:49:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:49:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:49:07,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:07,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601101043] [2024-11-20 08:49:07,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601101043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:07,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:07,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:49:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564031728] [2024-11-20 08:49:07,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:07,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:49:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:07,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:49:07,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:49:07,803 INFO L87 Difference]: Start difference. First operand 129 states and 189 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:49:07,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:07,846 INFO L93 Difference]: Finished difference Result 258 states and 379 transitions. [2024-11-20 08:49:07,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:49:07,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-20 08:49:07,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:07,850 INFO L225 Difference]: With dead ends: 258 [2024-11-20 08:49:07,851 INFO L226 Difference]: Without dead ends: 132 [2024-11-20 08:49:07,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:49:07,855 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:07,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 711 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-20 08:49:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-20 08:49:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.3818181818181818) internal successors, (152), 110 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:49:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2024-11-20 08:49:07,871 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 192 transitions. Word has length 161 [2024-11-20 08:49:07,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:07,871 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 192 transitions. [2024-11-20 08:49:07,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:49:07,871 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 192 transitions. [2024-11-20 08:49:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-20 08:49:07,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:07,875 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:07,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:49:07,876 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:07,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1724456741, now seen corresponding path program 1 times [2024-11-20 08:49:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:07,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932428289] [2024-11-20 08:49:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:07,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:49:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:49:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:49:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:49:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:49:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:49:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:49:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:49:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:49:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:49:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:49:08,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:08,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932428289] [2024-11-20 08:49:08,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932428289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:08,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:08,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:49:08,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553193272] [2024-11-20 08:49:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:08,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:49:08,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:08,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:49:08,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:49:08,708 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:49:09,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:09,190 INFO L93 Difference]: Finished difference Result 491 states and 713 transitions. [2024-11-20 08:49:09,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:49:09,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-20 08:49:09,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:09,194 INFO L225 Difference]: With dead ends: 491 [2024-11-20 08:49:09,194 INFO L226 Difference]: Without dead ends: 362 [2024-11-20 08:49:09,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:49:09,196 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 386 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:09,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 881 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:49:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-20 08:49:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 149. [2024-11-20 08:49:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 127 states have internal predecessors, (178), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:49:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 218 transitions. [2024-11-20 08:49:09,210 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 218 transitions. Word has length 162 [2024-11-20 08:49:09,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:09,211 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 218 transitions. [2024-11-20 08:49:09,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:49:09,211 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 218 transitions. [2024-11-20 08:49:09,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-20 08:49:09,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:09,213 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:09,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:49:09,214 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:09,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash -844039851, now seen corresponding path program 1 times [2024-11-20 08:49:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:09,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924449335] [2024-11-20 08:49:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:09,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:49:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:49:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:49:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:49:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:49:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:49:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:49:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:49:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:49:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:49:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 08:49:10,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:10,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924449335] [2024-11-20 08:49:10,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924449335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:49:10,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61394193] [2024-11-20 08:49:10,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:10,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:49:10,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:49:10,273 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) [2024-11-20 08:49:10,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 08:49:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:10,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-20 08:49:10,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:49:11,117 INFO L378 Elim1Store]: Elim1 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 15 treesize of output 1 [2024-11-20 08:49:11,484 INFO L378 Elim1Store]: Elim1 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 17 treesize of output 9 [2024-11-20 08:49:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 336 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-20 08:49:11,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 08:49:11,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-11-20 08:49:12,327 INFO L378 Elim1Store]: Elim1 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 32 treesize of output 28 [2024-11-20 08:49:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 08:49:12,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61394193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 08:49:12,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 08:49:12,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 31 [2024-11-20 08:49:12,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343266266] [2024-11-20 08:49:12,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 08:49:12,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-20 08:49:12,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:12,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-20 08:49:12,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2024-11-20 08:49:12,552 INFO L87 Difference]: Start difference. First operand 149 states and 218 transitions. Second operand has 31 states, 28 states have (on average 5.357142857142857) internal successors, (150), 29 states have internal predecessors, (150), 7 states have call successors, (60), 3 states have call predecessors, (60), 6 states have return successors, (60), 6 states have call predecessors, (60), 7 states have call successors, (60) [2024-11-20 08:49:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:15,998 INFO L93 Difference]: Finished difference Result 592 states and 845 transitions. [2024-11-20 08:49:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-20 08:49:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 5.357142857142857) internal successors, (150), 29 states have internal predecessors, (150), 7 states have call successors, (60), 3 states have call predecessors, (60), 6 states have return successors, (60), 6 states have call predecessors, (60), 7 states have call successors, (60) Word has length 163 [2024-11-20 08:49:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:16,002 INFO L225 Difference]: With dead ends: 592 [2024-11-20 08:49:16,004 INFO L226 Difference]: Without dead ends: 446 [2024-11-20 08:49:16,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 345 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1194 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=740, Invalid=4810, Unknown=0, NotChecked=0, Total=5550 [2024-11-20 08:49:16,009 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 2457 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:16,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 3056 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 08:49:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-20 08:49:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 326. [2024-11-20 08:49:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 266 states have (on average 1.3458646616541354) internal successors, (358), 267 states have internal predecessors, (358), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-20 08:49:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 464 transitions. [2024-11-20 08:49:16,056 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 464 transitions. Word has length 163 [2024-11-20 08:49:16,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:16,056 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 464 transitions. [2024-11-20 08:49:16,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 5.357142857142857) internal successors, (150), 29 states have internal predecessors, (150), 7 states have call successors, (60), 3 states have call predecessors, (60), 6 states have return successors, (60), 6 states have call predecessors, (60), 7 states have call successors, (60) [2024-11-20 08:49:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 464 transitions. [2024-11-20 08:49:16,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-20 08:49:16,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:16,059 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:16,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 08:49:16,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-20 08:49:16,264 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:16,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash 588162187, now seen corresponding path program 1 times [2024-11-20 08:49:16,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:16,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011958323] [2024-11-20 08:49:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:16,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 08:49:16,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798813380] [2024-11-20 08:49:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:16,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:49:16,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:49:16,452 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) [2024-11-20 08:49:16,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 08:49:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:16,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-20 08:49:16,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:49:17,022 INFO L378 Elim1Store]: Elim1 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 15 treesize of output 1 [2024-11-20 08:49:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 13 proven. 375 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-11-20 08:49:17,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 08:49:18,414 INFO L378 Elim1Store]: Elim1 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 52 treesize of output 48 [2024-11-20 08:49:18,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011958323] [2024-11-20 08:49:18,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 08:49:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798813380] [2024-11-20 08:49:18,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798813380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:49:18,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 08:49:18,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-20 08:49:18,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950226933] [2024-11-20 08:49:18,545 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 08:49:18,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:49:18,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:18,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:49:18,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-20 08:49:18,548 INFO L87 Difference]: Start difference. First operand 326 states and 464 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-20 08:49:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:19,096 INFO L93 Difference]: Finished difference Result 682 states and 973 transitions. [2024-11-20 08:49:19,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 08:49:19,096 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 164 [2024-11-20 08:49:19,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:19,102 INFO L225 Difference]: With dead ends: 682 [2024-11-20 08:49:19,102 INFO L226 Difference]: Without dead ends: 437 [2024-11-20 08:49:19,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2024-11-20 08:49:19,105 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 429 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:19,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 972 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:49:19,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-20 08:49:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 331. [2024-11-20 08:49:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 270 states have (on average 1.3407407407407408) internal successors, (362), 271 states have internal predecessors, (362), 53 states have call successors, (53), 7 states have call predecessors, (53), 7 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-20 08:49:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 468 transitions. [2024-11-20 08:49:19,138 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 468 transitions. Word has length 164 [2024-11-20 08:49:19,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:19,139 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 468 transitions. [2024-11-20 08:49:19,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-20 08:49:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 468 transitions. [2024-11-20 08:49:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-20 08:49:19,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:19,141 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:49:19,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 08:49:19,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-20 08:49:19,345 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:19,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:19,346 INFO L85 PathProgramCache]: Analyzing trace with hash 728710797, now seen corresponding path program 1 times [2024-11-20 08:49:19,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:19,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615491564] [2024-11-20 08:49:19,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:19,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat