./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-39.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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-39.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 214c49e8f3d3735ec742b7b163a0487f19e3afbd4fa1866f6927a51886e4b103 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:37:20,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:37:20,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:37:20,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:37:20,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:37:20,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:37:20,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:37:20,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:37:20,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:37:20,881 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:37:20,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:37:20,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:37:20,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:37:20,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:37:20,884 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:37:20,885 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:37:20,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:37:20,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:37:20,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:37:20,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:37:20,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:37:20,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:37:20,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:37:20,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:37:20,892 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:37:20,892 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:37:20,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:37:20,893 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:37:20,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:37:20,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:37:20,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:37:20,895 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:37:20,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:37:20,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:37:20,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:37:20,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:37:20,896 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:37:20,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:37:20,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:37:20,897 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:37:20,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:37:20,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:37:20,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214c49e8f3d3735ec742b7b163a0487f19e3afbd4fa1866f6927a51886e4b103 [2024-10-24 11:37:21,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:37:21,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:37:21,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:37:21,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:37:21,255 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:37:21,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-39.i [2024-10-24 11:37:22,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:37:23,046 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:37:23,047 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-39.i [2024-10-24 11:37:23,060 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/335c4fa55/e5e2f1d9d0a44d46aeb1141d672fd5bd/FLAG6cb56b99e [2024-10-24 11:37:23,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/335c4fa55/e5e2f1d9d0a44d46aeb1141d672fd5bd [2024-10-24 11:37:23,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:37:23,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:37:23,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:37:23,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:37:23,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:37:23,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb3a5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23, skipping insertion in model container [2024-10-24 11:37:23,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,129 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:37:23,285 WARN L248 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-39.i[916,929] [2024-10-24 11:37:23,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:37:23,359 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:37:23,369 WARN L248 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-39.i[916,929] [2024-10-24 11:37:23,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:37:23,434 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:37:23,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23 WrapperNode [2024-10-24 11:37:23,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:37:23,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:37:23,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:37:23,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:37:23,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,503 INFO L138 Inliner]: procedures = 29, calls = 199, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 632 [2024-10-24 11:37:23,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:37:23,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:37:23,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:37:23,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:37:23,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,557 INFO L175 MemorySlicer]: Split 160 memory accesses to 13 slices as follows [2, 7, 30, 10, 22, 28, 9, 12, 12, 8, 7, 7, 6]. 19 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1]. [2024-10-24 11:37:23,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,583 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:37:23,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:37:23,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:37:23,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:37:23,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (1/1) ... [2024-10-24 11:37:23,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:37:23,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:37:23,653 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) [2024-10-24 11:37:23,656 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 [2024-10-24 11:37:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:37:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 11:37:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 11:37:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-24 11:37:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-24 11:37:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-24 11:37:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-24 11:37:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-24 11:37:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-24 11:37:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-24 11:37:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-24 11:37:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-24 11:37:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-24 11:37:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-10-24 11:37:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:37:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-24 11:37:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-24 11:37:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-24 11:37:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-24 11:37:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 11:37:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 11:37:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-24 11:37:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-24 11:37:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-24 11:37:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-24 11:37:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-24 11:37:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-24 11:37:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-24 11:37:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-24 11:37:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-24 11:37:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-24 11:37:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-10-24 11:37:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:37:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:37:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:37:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:37:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:37:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:37:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:37:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 11:37:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 11:37:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 11:37:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 11:37:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-24 11:37:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-24 11:37:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-24 11:37:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-24 11:37:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:37:23,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:37:24,044 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:37:24,045 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:37:24,631 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-10-24 11:37:24,632 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:37:24,672 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:37:24,672 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:37:24,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:37:24 BoogieIcfgContainer [2024-10-24 11:37:24,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:37:24,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:37:24,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:37:24,678 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:37:24,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:37:23" (1/3) ... [2024-10-24 11:37:24,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4379e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:37:24, skipping insertion in model container [2024-10-24 11:37:24,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:37:23" (2/3) ... [2024-10-24 11:37:24,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4379e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:37:24, skipping insertion in model container [2024-10-24 11:37:24,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:37:24" (3/3) ... [2024-10-24 11:37:24,680 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-39.i [2024-10-24 11:37:24,695 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:37:24,695 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:37:24,769 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:37:24,778 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;@4aa65600, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:37:24,779 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:37:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 95 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 11:37:24,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 11:37:24,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:24,803 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:24,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:24,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:24,810 INFO L85 PathProgramCache]: Analyzing trace with hash 7230379, now seen corresponding path program 1 times [2024-10-24 11:37:24,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:24,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507284286] [2024-10-24 11:37:24,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:24,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:37:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:37:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:37:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:37:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:37:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:37:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:37:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:25,345 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 11:37:25,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:25,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507284286] [2024-10-24 11:37:25,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507284286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:25,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:25,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:37:25,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313645864] [2024-10-24 11:37:25,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:25,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:37:25,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:25,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:37:25,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:37:25,396 INFO L87 Difference]: Start difference. First operand has 113 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 95 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 11:37:25,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:25,449 INFO L93 Difference]: Finished difference Result 223 states and 354 transitions. [2024-10-24 11:37:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:37:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 123 [2024-10-24 11:37:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:25,459 INFO L225 Difference]: With dead ends: 223 [2024-10-24 11:37:25,460 INFO L226 Difference]: Without dead ends: 111 [2024-10-24 11:37:25,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:37:25,468 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:25,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:37:25,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-24 11:37:25,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-10-24 11:37:25,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 93 states have internal predecessors, (133), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 11:37:25,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 165 transitions. [2024-10-24 11:37:25,520 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 165 transitions. Word has length 123 [2024-10-24 11:37:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:25,521 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 165 transitions. [2024-10-24 11:37:25,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 11:37:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 165 transitions. [2024-10-24 11:37:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 11:37:25,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:25,525 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:25,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:37:25,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:25,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:25,526 INFO L85 PathProgramCache]: Analyzing trace with hash 704704239, now seen corresponding path program 1 times [2024-10-24 11:37:25,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:25,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579878126] [2024-10-24 11:37:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:25,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:37:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:37:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:37:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:37:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:37:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:37:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:37:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 11:37:28,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:28,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579878126] [2024-10-24 11:37:28,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579878126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:28,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:28,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 11:37:28,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311734554] [2024-10-24 11:37:28,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:28,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 11:37:28,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:28,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 11:37:28,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:37:28,259 INFO L87 Difference]: Start difference. First operand 111 states and 165 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 11:37:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:29,521 INFO L93 Difference]: Finished difference Result 316 states and 469 transitions. [2024-10-24 11:37:29,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:37:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 123 [2024-10-24 11:37:29,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:29,525 INFO L225 Difference]: With dead ends: 316 [2024-10-24 11:37:29,527 INFO L226 Difference]: Without dead ends: 206 [2024-10-24 11:37:29,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:37:29,529 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 135 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:29,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1386 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 11:37:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-24 11:37:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 121. [2024-10-24 11:37:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 103 states have internal predecessors, (147), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 11:37:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 179 transitions. [2024-10-24 11:37:29,549 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 179 transitions. Word has length 123 [2024-10-24 11:37:29,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:29,555 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 179 transitions. [2024-10-24 11:37:29,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 11:37:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 179 transitions. [2024-10-24 11:37:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 11:37:29,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:29,561 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:29,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:37:29,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:29,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:29,562 INFO L85 PathProgramCache]: Analyzing trace with hash -104642387, now seen corresponding path program 1 times [2024-10-24 11:37:29,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:29,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283591571] [2024-10-24 11:37:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:29,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:37:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:37:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:37:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:37:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:37:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:37:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:37:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 11:37:29,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:29,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283591571] [2024-10-24 11:37:29,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283591571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:29,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:29,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:37:29,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668507653] [2024-10-24 11:37:29,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:29,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:37:29,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:29,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:37:29,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:37:29,850 INFO L87 Difference]: Start difference. First operand 121 states and 179 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 11:37:30,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:30,040 INFO L93 Difference]: Finished difference Result 309 states and 456 transitions. [2024-10-24 11:37:30,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:37:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 123 [2024-10-24 11:37:30,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:30,043 INFO L225 Difference]: With dead ends: 309 [2024-10-24 11:37:30,043 INFO L226 Difference]: Without dead ends: 189 [2024-10-24 11:37:30,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:37:30,045 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 94 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:30,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 584 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:37:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-10-24 11:37:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2024-10-24 11:37:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 163 states have (on average 1.4355828220858895) internal successors, (234), 164 states have internal predecessors, (234), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:37:30,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 274 transitions. [2024-10-24 11:37:30,060 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 274 transitions. Word has length 123 [2024-10-24 11:37:30,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:30,061 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 274 transitions. [2024-10-24 11:37:30,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 11:37:30,062 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 274 transitions. [2024-10-24 11:37:30,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 11:37:30,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:30,064 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:30,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:37:30,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:30,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:30,065 INFO L85 PathProgramCache]: Analyzing trace with hash -316364115, now seen corresponding path program 1 times [2024-10-24 11:37:30,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:30,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905824102] [2024-10-24 11:37:30,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:30,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:37:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:37:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:37:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:37:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:37:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:37:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:37:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 11:37:30,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:30,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905824102] [2024-10-24 11:37:30,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905824102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:30,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:30,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:37:30,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56273234] [2024-10-24 11:37:30,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:30,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:37:30,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:30,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:37:30,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:37:30,326 INFO L87 Difference]: Start difference. First operand 186 states and 274 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 11:37:30,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:30,513 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2024-10-24 11:37:30,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:37:30,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 123 [2024-10-24 11:37:30,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:30,517 INFO L225 Difference]: With dead ends: 378 [2024-10-24 11:37:30,517 INFO L226 Difference]: Without dead ends: 193 [2024-10-24 11:37:30,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:37:30,521 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 94 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:30,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 657 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:37:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-10-24 11:37:30,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 147. [2024-10-24 11:37:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.421875) internal successors, (182), 128 states have internal predecessors, (182), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 11:37:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2024-10-24 11:37:30,544 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 123 [2024-10-24 11:37:30,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:30,548 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2024-10-24 11:37:30,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 11:37:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2024-10-24 11:37:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 11:37:30,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:30,550 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:30,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:37:30,550 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:30,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:30,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1125710741, now seen corresponding path program 1 times [2024-10-24 11:37:30,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:30,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885582771] [2024-10-24 11:37:30,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:30,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat