./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-ap_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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-ap_file-40.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 701bed3a43f899916e62fb61f191b70b6f4d30dc354ae918413412b769e8c450 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:07:43,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:07:43,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:07:43,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:07:43,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:07:43,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:07:43,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:07:43,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:07:43,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:07:43,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:07:43,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:07:43,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:07:43,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:07:43,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:07:43,336 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:07:43,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:07:43,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:07:43,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:07:43,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:07:43,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:07:43,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:07:43,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:07:43,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:07:43,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:07:43,344 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:07:43,345 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:07:43,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:07:43,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:07:43,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:07:43,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:07:43,346 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:07:43,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:07:43,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:07:43,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:07:43,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:07:43,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:07:43,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:07:43,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:07:43,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:07:43,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:07:43,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:07:43,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:07:43,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 701bed3a43f899916e62fb61f191b70b6f4d30dc354ae918413412b769e8c450 [2024-10-13 06:07:43,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:07:43,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:07:43,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:07:43,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:07:43,665 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:07:43,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-40.i [2024-10-13 06:07:45,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:07:45,596 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:07:45,597 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-40.i [2024-10-13 06:07:45,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748cc2409/300f5b75771a408db4e8a799f10b83e6/FLAGf1ed52622 [2024-10-13 06:07:45,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748cc2409/300f5b75771a408db4e8a799f10b83e6 [2024-10-13 06:07:45,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:07:45,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:07:45,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:07:45,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:07:45,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:07:45,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:07:45" (1/1) ... [2024-10-13 06:07:45,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f081f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:45, skipping insertion in model container [2024-10-13 06:07:45,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:07:45" (1/1) ... [2024-10-13 06:07:45,684 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:07:45,896 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-ap_file-40.i[917,930] [2024-10-13 06:07:45,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:07:45,966 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:07:45,979 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-ap_file-40.i[917,930] [2024-10-13 06:07:46,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:07:46,035 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:07:46,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46 WrapperNode [2024-10-13 06:07:46,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:07:46,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:07:46,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:07:46,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:07:46,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,092 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 491 [2024-10-13 06:07:46,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:07:46,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:07:46,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:07:46,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:07:46,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,116 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,149 INFO L175 MemorySlicer]: Split 120 memory accesses to 8 slices as follows [2, 16, 14, 15, 27, 17, 10, 19]. 23 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 2, 2, 1, 3, 3, 2, 3]. The 17 writes are split as follows [0, 2, 2, 1, 3, 3, 2, 4]. [2024-10-13 06:07:46,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:07:46,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:07:46,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:07:46,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:07:46,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (1/1) ... [2024-10-13 06:07:46,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:07:46,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:07:46,233 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) [2024-10-13 06:07:46,237 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 [2024-10-13 06:07:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:07:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-13 06:07:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-13 06:07:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-13 06:07:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-13 06:07:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-13 06:07:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-13 06:07:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-13 06:07:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-13 06:07:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:07:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:07:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:07:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:07:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 06:07:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 06:07:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-13 06:07:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-13 06:07:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-13 06:07:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-13 06:07:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-13 06:07:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-13 06:07:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-13 06:07:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-13 06:07:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-13 06:07:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-13 06:07:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:07:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:07:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-13 06:07:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:07:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 06:07:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 06:07:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-13 06:07:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-13 06:07:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:07:46,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:07:46,494 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:07:46,497 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:07:47,095 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-10-13 06:07:47,096 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:07:47,157 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:07:47,157 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:07:47,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:07:47 BoogieIcfgContainer [2024-10-13 06:07:47,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:07:47,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:07:47,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:07:47,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:07:47,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:07:45" (1/3) ... [2024-10-13 06:07:47,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa94321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:07:47, skipping insertion in model container [2024-10-13 06:07:47,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:46" (2/3) ... [2024-10-13 06:07:47,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa94321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:07:47, skipping insertion in model container [2024-10-13 06:07:47,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:07:47" (3/3) ... [2024-10-13 06:07:47,167 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-40.i [2024-10-13 06:07:47,186 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:07:47,186 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:07:47,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:07:47,266 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;@23ecd422, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:07:47,267 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:07:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:07:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:07:47,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:47,286 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:07:47,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:47,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:47,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1004910808, now seen corresponding path program 1 times [2024-10-13 06:07:47,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:47,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389311043] [2024-10-13 06:07:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:47,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:07:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:07:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:07:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:07:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:07:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:07:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:07:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:07:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:07:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:07:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:07:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:07:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:07:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:07:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:47,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:07:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:07:48,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:48,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389311043] [2024-10-13 06:07:48,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389311043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:48,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:48,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:07:48,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253234310] [2024-10-13 06:07:48,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:48,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:07:48,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:48,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:07:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:07:48,051 INFO L87 Difference]: Start difference. First operand has 106 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:07:48,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:48,109 INFO L93 Difference]: Finished difference Result 209 states and 337 transitions. [2024-10-13 06:07:48,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:07:48,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-10-13 06:07:48,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:48,127 INFO L225 Difference]: With dead ends: 209 [2024-10-13 06:07:48,127 INFO L226 Difference]: Without dead ends: 104 [2024-10-13 06:07:48,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:07:48,139 INFO L432 NwaCegarLoop]: 151 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, 151 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 [2024-10-13 06:07:48,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:07:48,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-13 06:07:48,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-13 06:07:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 83 states have (on average 1.4096385542168675) internal successors, (117), 83 states have internal predecessors, (117), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:07:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 155 transitions. [2024-10-13 06:07:48,198 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 155 transitions. Word has length 145 [2024-10-13 06:07:48,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:48,198 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 155 transitions. [2024-10-13 06:07:48,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:07:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2024-10-13 06:07:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:07:48,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:48,206 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:07:48,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:07:48,207 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:48,208 INFO L85 PathProgramCache]: Analyzing trace with hash 332441170, now seen corresponding path program 1 times [2024-10-13 06:07:48,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:48,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918583294] [2024-10-13 06:07:48,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:07:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:07:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:07:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:07:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:07:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:07:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:07:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:07:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:07:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:07:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:07:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:07:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:07:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:07:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:07:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:07:48,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:48,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918583294] [2024-10-13 06:07:48,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918583294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:48,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:48,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:07:48,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843870281] [2024-10-13 06:07:48,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:48,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:07:48,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:48,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:07:48,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:07:48,798 INFO L87 Difference]: Start difference. First operand 104 states and 155 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:07:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:48,866 INFO L93 Difference]: Finished difference Result 209 states and 312 transitions. [2024-10-13 06:07:48,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:07:48,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2024-10-13 06:07:48,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:48,872 INFO L225 Difference]: With dead ends: 209 [2024-10-13 06:07:48,872 INFO L226 Difference]: Without dead ends: 106 [2024-10-13 06:07:48,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:07:48,876 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:48,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 440 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:07:48,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-13 06:07:48,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-10-13 06:07:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.4) internal successors, (119), 85 states have internal predecessors, (119), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:07:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 157 transitions. [2024-10-13 06:07:48,898 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 157 transitions. Word has length 145 [2024-10-13 06:07:48,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:48,901 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 157 transitions. [2024-10-13 06:07:48,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:07:48,902 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2024-10-13 06:07:48,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:07:48,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:48,906 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:07:48,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:07:48,907 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:48,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash -685160803, now seen corresponding path program 1 times [2024-10-13 06:07:48,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:48,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344476966] [2024-10-13 06:07:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:07:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:07:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:07:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:07:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:07:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:07:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:07:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:07:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:07:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:07:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:07:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:07:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:07:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:07:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:07:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:07:49,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:49,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344476966] [2024-10-13 06:07:49,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344476966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:49,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:49,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:07:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590139724] [2024-10-13 06:07:49,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:49,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:07:49,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:49,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:07:49,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:07:49,268 INFO L87 Difference]: Start difference. First operand 106 states and 157 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:07:49,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:49,330 INFO L93 Difference]: Finished difference Result 214 states and 317 transitions. [2024-10-13 06:07:49,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:07:49,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-13 06:07:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:49,333 INFO L225 Difference]: With dead ends: 214 [2024-10-13 06:07:49,333 INFO L226 Difference]: Without dead ends: 109 [2024-10-13 06:07:49,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:07:49,335 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:49,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 437 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:07:49,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-13 06:07:49,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-10-13 06:07:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 87 states have internal predecessors, (121), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:07:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2024-10-13 06:07:49,344 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 148 [2024-10-13 06:07:49,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:49,345 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2024-10-13 06:07:49,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:07:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2024-10-13 06:07:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:07:49,347 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:49,347 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:07:49,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:07:49,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:49,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:49,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1494507429, now seen corresponding path program 1 times [2024-10-13 06:07:49,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:49,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784399825] [2024-10-13 06:07:49,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:07:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:07:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:07:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:07:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:07:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:07:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:07:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:07:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:07:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:07:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:07:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:07:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:07:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:07:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:07:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:49,634 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:07:49,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:49,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784399825] [2024-10-13 06:07:49,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784399825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:49,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:49,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:07:49,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846998239] [2024-10-13 06:07:49,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:49,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:07:49,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:49,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:07:49,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:07:49,639 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:07:49,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:49,686 INFO L93 Difference]: Finished difference Result 218 states and 321 transitions. [2024-10-13 06:07:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:07:49,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-13 06:07:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:49,690 INFO L225 Difference]: With dead ends: 218 [2024-10-13 06:07:49,690 INFO L226 Difference]: Without dead ends: 111 [2024-10-13 06:07:49,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:07:49,695 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:49,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 441 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:07:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-13 06:07:49,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-10-13 06:07:49,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 89 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:07:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 161 transitions. [2024-10-13 06:07:49,714 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 161 transitions. Word has length 148 [2024-10-13 06:07:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:49,716 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 161 transitions. [2024-10-13 06:07:49,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:07:49,717 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 161 transitions. [2024-10-13 06:07:49,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:07:49,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:49,719 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:07:49,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:07:49,723 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:49,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:49,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1494447847, now seen corresponding path program 1 times [2024-10-13 06:07:49,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:49,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871077228] [2024-10-13 06:07:49,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:49,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:07:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:07:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:07:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:07:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:07:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:07:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:07:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:07:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:07:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:07:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:07:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:07:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:07:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:07:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:07:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:07:59,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:59,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871077228] [2024-10-13 06:07:59,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871077228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:59,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:59,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:07:59,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920716883] [2024-10-13 06:07:59,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:59,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:07:59,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:59,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:07:59,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:07:59,738 INFO L87 Difference]: Start difference. First operand 110 states and 161 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:08:09,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:08:09,919 INFO L93 Difference]: Finished difference Result 405 states and 591 transitions. [2024-10-13 06:08:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:08:09,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2024-10-13 06:08:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:08:09,925 INFO L225 Difference]: With dead ends: 405 [2024-10-13 06:08:09,925 INFO L226 Difference]: Without dead ends: 296 [2024-10-13 06:08:09,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:08:09,927 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 274 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-10-13 06:08:09,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 999 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-10-13 06:08:09,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-10-13 06:08:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 289. [2024-10-13 06:08:09,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 238 states have (on average 1.3823529411764706) internal successors, (329), 239 states have internal predecessors, (329), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-10-13 06:08:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 423 transitions. [2024-10-13 06:08:09,955 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 423 transitions. Word has length 148 [2024-10-13 06:08:09,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:08:09,956 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 423 transitions. [2024-10-13 06:08:09,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:08:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 423 transitions. [2024-10-13 06:08:09,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:08:09,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:08:09,958 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:08:09,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:08:09,959 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:08:09,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:08:09,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1520655771, now seen corresponding path program 1 times [2024-10-13 06:08:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:08:09,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634408946] [2024-10-13 06:08:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:08:09,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:08:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:08:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:08:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:08:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:08:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:08:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:08:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:08:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:08:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:08:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:08:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:08:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:08:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:08:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:08:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:08:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:08:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:08:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:08:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:08:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:08:11,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:08:11,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634408946] [2024-10-13 06:08:11,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634408946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:08:11,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:08:11,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:08:11,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298827340] [2024-10-13 06:08:11,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:08:11,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:08:11,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:08:11,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:08:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:08:11,225 INFO L87 Difference]: Start difference. First operand 289 states and 423 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:08:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:08:11,640 INFO L93 Difference]: Finished difference Result 758 states and 1104 transitions. [2024-10-13 06:08:11,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:08:11,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-13 06:08:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:08:11,647 INFO L225 Difference]: With dead ends: 758 [2024-10-13 06:08:11,647 INFO L226 Difference]: Without dead ends: 470 [2024-10-13 06:08:11,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:08:11,650 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 260 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:08:11,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 999 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:08:11,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-13 06:08:11,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 466. [2024-10-13 06:08:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 383 states have (on average 1.3629242819843341) internal successors, (522), 386 states have internal predecessors, (522), 77 states have call successors, (77), 5 states have call predecessors, (77), 5 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-13 06:08:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 676 transitions. [2024-10-13 06:08:11,727 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 676 transitions. Word has length 148 [2024-10-13 06:08:11,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:08:11,727 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 676 transitions. [2024-10-13 06:08:11,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:08:11,728 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 676 transitions. [2024-10-13 06:08:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:08:11,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:08:11,730 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:08:11,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:08:11,730 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:08:11,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:08:11,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1488102203, now seen corresponding path program 1 times [2024-10-13 06:08:11,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:08:11,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95302931] [2024-10-13 06:08:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:08:11,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:08:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:08:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:08:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:08:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:08:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:08:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:08:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:08:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:08:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:08:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:08:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:08:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:08:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:08:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:08:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:08:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:08:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:08:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:08:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:08:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:08:11,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:08:11,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95302931] [2024-10-13 06:08:11,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95302931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:08:11,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:08:11,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:08:11,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557335085] [2024-10-13 06:08:11,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:08:11,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:08:11,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:08:11,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:08:11,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:08:11,929 INFO L87 Difference]: Start difference. First operand 466 states and 676 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:08:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:08:11,981 INFO L93 Difference]: Finished difference Result 946 states and 1371 transitions. [2024-10-13 06:08:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:08:11,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-13 06:08:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:08:11,985 INFO L225 Difference]: With dead ends: 946 [2024-10-13 06:08:11,986 INFO L226 Difference]: Without dead ends: 481 [2024-10-13 06:08:11,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:08:11,988 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:08:11,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 583 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:08:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-10-13 06:08:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 471. [2024-10-13 06:08:12,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 388 states have (on average 1.3582474226804124) internal successors, (527), 391 states have internal predecessors, (527), 77 states have call successors, (77), 5 states have call predecessors, (77), 5 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-13 06:08:12,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 681 transitions. [2024-10-13 06:08:12,023 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 681 transitions. Word has length 148 [2024-10-13 06:08:12,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:08:12,023 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 681 transitions. [2024-10-13 06:08:12,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:08:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 681 transitions. [2024-10-13 06:08:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:08:12,026 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:08:12,026 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:08:12,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:08:12,026 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:08:12,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:08:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1360434341, now seen corresponding path program 1 times [2024-10-13 06:08:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:08:12,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881107505] [2024-10-13 06:08:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:08:12,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:08:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:08:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:08:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:08:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:08:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:08:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:08:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:08:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:08:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:08:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:08:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:08:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:08:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:08:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:08:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 06:08:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 06:08:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 06:08:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 06:08:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 06:08:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:08:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:08:13,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:08:13,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881107505] [2024-10-13 06:08:13,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881107505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:08:13,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:08:13,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:08:13,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220137080] [2024-10-13 06:08:13,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:08:13,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:08:13,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:08:13,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:08:13,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:08:13,818 INFO L87 Difference]: Start difference. First operand 471 states and 681 transitions. Second operand has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:08:14,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:08:14,545 INFO L93 Difference]: Finished difference Result 994 states and 1431 transitions. [2024-10-13 06:08:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:08:14,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-10-13 06:08:14,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:08:14,550 INFO L225 Difference]: With dead ends: 994 [2024-10-13 06:08:14,550 INFO L226 Difference]: Without dead ends: 524 [2024-10-13 06:08:14,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:08:14,552 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 342 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:08:14,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1320 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:08:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-10-13 06:08:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 386. [2024-10-13 06:08:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 318 states have (on average 1.3647798742138364) internal successors, (434), 320 states have internal predecessors, (434), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-13 06:08:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 558 transitions. [2024-10-13 06:08:14,627 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 558 transitions. Word has length 148 [2024-10-13 06:08:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:08:14,628 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 558 transitions. [2024-10-13 06:08:14,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:08:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 558 transitions. [2024-10-13 06:08:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:08:14,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:08:14,630 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:08:14,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:08:14,630 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:08:14,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:08:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1654669277, now seen corresponding path program 1 times [2024-10-13 06:08:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:08:14,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795026702] [2024-10-13 06:08:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:08:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:08:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat