./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.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 1b5fc557e9eca50427a2e44f543168d77b97544575eea34c071efc5d55e33518 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:36:31,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:36:31,366 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:36:31,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:36:31,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:36:31,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:36:31,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:36:31,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:36:31,403 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:36:31,405 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:36:31,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:36:31,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:36:31,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:36:31,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:36:31,407 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:36:31,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:36:31,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:36:31,408 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:36:31,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:36:31,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:36:31,409 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:36:31,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:36:31,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:36:31,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:36:31,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:36:31,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:36:31,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:36:31,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:36:31,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:36:31,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:36:31,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:36:31,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:36:31,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:36:31,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:36:31,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:36:31,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:36:31,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:36:31,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:36:31,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:36:31,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:36:31,417 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:36:31,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:36:31,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b5fc557e9eca50427a2e44f543168d77b97544575eea34c071efc5d55e33518 [2024-11-19 00:36:31,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:36:31,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:36:31,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:36:31,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:36:31,686 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:36:31,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i [2024-11-19 00:36:33,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:36:33,291 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:36:33,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i [2024-11-19 00:36:33,311 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6278826/27d7c54a5a4c43b090d847cd8932d548/FLAG6a7e7ba4a [2024-11-19 00:36:33,339 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6278826/27d7c54a5a4c43b090d847cd8932d548 [2024-11-19 00:36:33,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:36:33,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:36:33,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:36:33,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:36:33,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:36:33,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7648ca3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33, skipping insertion in model container [2024-11-19 00:36:33,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:36:33,545 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i[916,929] [2024-11-19 00:36:33,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:36:33,627 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:36:33,652 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i[916,929] [2024-11-19 00:36:33,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:36:33,709 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:36:33,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33 WrapperNode [2024-11-19 00:36:33,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:36:33,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:36:33,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:36:33,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:36:33,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,778 INFO L138 Inliner]: procedures = 29, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 491 [2024-11-19 00:36:33,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:36:33,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:36:33,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:36:33,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:36:33,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,822 INFO L175 MemorySlicer]: Split 133 memory accesses to 5 slices as follows [2, 45, 20, 39, 27]. 34 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 6, 2, 5, 2]. The 18 writes are split as follows [0, 9, 2, 5, 2]. [2024-11-19 00:36:33,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:36:33,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:36:33,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:36:33,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:36:33,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (1/1) ... [2024-11-19 00:36:33,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:36:33,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:36:33,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:36:33,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:36:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:36:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:36:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:36:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:36:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:36:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:36:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:36:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:36:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:36:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:36:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:36:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:36:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:36:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:36:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:36:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:36:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:36:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:36:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:36:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:36:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:36:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:36:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:36:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:36:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:36:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:36:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:36:33,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:36:34,048 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:36:34,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:36:34,451 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-19 00:36:34,451 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:36:34,464 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:36:34,465 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:36:34,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:36:34 BoogieIcfgContainer [2024-11-19 00:36:34,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:36:34,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:36:34,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:36:34,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:36:34,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:36:33" (1/3) ... [2024-11-19 00:36:34,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc4d413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:36:34, skipping insertion in model container [2024-11-19 00:36:34,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:33" (2/3) ... [2024-11-19 00:36:34,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc4d413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:36:34, skipping insertion in model container [2024-11-19 00:36:34,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:36:34" (3/3) ... [2024-11-19 00:36:34,477 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-53.i [2024-11-19 00:36:34,501 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:36:34,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:36:34,569 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:36:34,576 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;@2cb793e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:36:34,577 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:36:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 00:36:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:36:34,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:34,599 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:34,600 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:34,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1255670194, now seen corresponding path program 1 times [2024-11-19 00:36:34,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:34,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276494691] [2024-11-19 00:36:34,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:34,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 00:36:34,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:34,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276494691] [2024-11-19 00:36:34,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276494691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:36:34,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364707096] [2024-11-19 00:36:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:34,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:36:34,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:36:34,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:36:34,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:36:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:35,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:36:35,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:36:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 00:36:35,387 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:36:35,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364707096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:35,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:36:35,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:36:35,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504487014] [2024-11-19 00:36:35,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:35,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:36:35,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:35,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:36:35,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:36:35,444 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:35,498 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-11-19 00:36:35,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:36:35,500 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-19 00:36:35,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:35,515 INFO L225 Difference]: With dead ends: 217 [2024-11-19 00:36:35,516 INFO L226 Difference]: Without dead ends: 108 [2024-11-19 00:36:35,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:36:35,532 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:35,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-19 00:36:35,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-19 00:36:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 00:36:35,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-11-19 00:36:35,601 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-11-19 00:36:35,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:35,603 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-11-19 00:36:35,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-11-19 00:36:35,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:36:35,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:35,607 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:35,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:36:35,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:36:35,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:35,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:35,809 INFO L85 PathProgramCache]: Analyzing trace with hash -674029138, now seen corresponding path program 1 times [2024-11-19 00:36:35,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:35,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094321453] [2024-11-19 00:36:35,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:35,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:36,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:36,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094321453] [2024-11-19 00:36:36,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094321453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:36,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:36,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:36:36,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049558796] [2024-11-19 00:36:36,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:36,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:36:36,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:36,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:36:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:36,267 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:36,328 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-11-19 00:36:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:36:36,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-19 00:36:36,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:36,331 INFO L225 Difference]: With dead ends: 213 [2024-11-19 00:36:36,331 INFO L226 Difference]: Without dead ends: 108 [2024-11-19 00:36:36,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:36,333 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:36,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-19 00:36:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-19 00:36:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 00:36:36,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-19 00:36:36,342 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-11-19 00:36:36,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:36,348 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-19 00:36:36,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-19 00:36:36,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:36:36,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:36,350 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:36,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:36:36,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:36,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:36,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1695097492, now seen corresponding path program 1 times [2024-11-19 00:36:36,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:36,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917974256] [2024-11-19 00:36:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:36,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:37,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:37,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917974256] [2024-11-19 00:36:37,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917974256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:37,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:37,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:36:37,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977809958] [2024-11-19 00:36:37,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:37,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:36:37,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:37,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:36:37,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:36:37,909 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:38,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:38,079 INFO L93 Difference]: Finished difference Result 215 states and 308 transitions. [2024-11-19 00:36:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:36:38,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-19 00:36:38,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:38,083 INFO L225 Difference]: With dead ends: 215 [2024-11-19 00:36:38,083 INFO L226 Difference]: Without dead ends: 110 [2024-11-19 00:36:38,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:36:38,084 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 68 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:38,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 572 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:36:38,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-19 00:36:38,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-19 00:36:38,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 90 states have internal predecessors, (120), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 00:36:38,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-11-19 00:36:38,104 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 140 [2024-11-19 00:36:38,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:38,105 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-11-19 00:36:38,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:38,105 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-11-19 00:36:38,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:36:38,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:38,107 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:38,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:36:38,108 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:38,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:38,109 INFO L85 PathProgramCache]: Analyzing trace with hash -994032914, now seen corresponding path program 1 times [2024-11-19 00:36:38,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:38,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013791674] [2024-11-19 00:36:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:38,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:40,369 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:40,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:40,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013791674] [2024-11-19 00:36:40,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013791674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:40,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:40,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:36:40,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557200450] [2024-11-19 00:36:40,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:40,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:36:40,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:40,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:36:40,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:36:40,375 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 11 states, 8 states have (on average 6.625) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 00:36:40,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:40,907 INFO L93 Difference]: Finished difference Result 362 states and 516 transitions. [2024-11-19 00:36:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:36:40,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 140 [2024-11-19 00:36:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:40,910 INFO L225 Difference]: With dead ends: 362 [2024-11-19 00:36:40,910 INFO L226 Difference]: Without dead ends: 255 [2024-11-19 00:36:40,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:36:40,911 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 234 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:40,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1187 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:36:40,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-19 00:36:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 250. [2024-11-19 00:36:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 198 states have (on average 1.3232323232323233) internal successors, (262), 199 states have internal predecessors, (262), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-19 00:36:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 358 transitions. [2024-11-19 00:36:40,931 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 358 transitions. Word has length 140 [2024-11-19 00:36:40,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:40,931 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 358 transitions. [2024-11-19 00:36:40,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 00:36:40,932 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 358 transitions. [2024-11-19 00:36:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 00:36:40,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:40,933 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:40,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:36:40,933 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:40,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash 847661109, now seen corresponding path program 1 times [2024-11-19 00:36:40,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:40,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100298314] [2024-11-19 00:36:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:40,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:42,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:42,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100298314] [2024-11-19 00:36:42,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100298314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:42,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:42,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:36:42,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030015072] [2024-11-19 00:36:42,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:42,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:36:42,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:42,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:36:42,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:36:42,347 INFO L87 Difference]: Start difference. First operand 250 states and 358 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:42,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:42,743 INFO L93 Difference]: Finished difference Result 360 states and 512 transitions. [2024-11-19 00:36:42,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:36:42,745 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2024-11-19 00:36:42,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:42,747 INFO L225 Difference]: With dead ends: 360 [2024-11-19 00:36:42,747 INFO L226 Difference]: Without dead ends: 253 [2024-11-19 00:36:42,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:36:42,748 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 253 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:42,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 961 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:36:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-19 00:36:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 252. [2024-11-19 00:36:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 199 states have (on average 1.3115577889447236) internal successors, (261), 200 states have internal predecessors, (261), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-19 00:36:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 357 transitions. [2024-11-19 00:36:42,791 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 357 transitions. Word has length 142 [2024-11-19 00:36:42,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:42,791 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 357 transitions. [2024-11-19 00:36:42,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 357 transitions. [2024-11-19 00:36:42,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 00:36:42,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:42,793 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:42,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:36:42,793 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:42,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:42,794 INFO L85 PathProgramCache]: Analyzing trace with hash 59473210, now seen corresponding path program 1 times [2024-11-19 00:36:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:42,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449232182] [2024-11-19 00:36:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:42,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:42,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449232182] [2024-11-19 00:36:42,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449232182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:42,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:42,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:36:42,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534850498] [2024-11-19 00:36:42,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:42,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:36:42,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:42,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:36:42,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:42,957 INFO L87 Difference]: Start difference. First operand 252 states and 357 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:42,999 INFO L93 Difference]: Finished difference Result 466 states and 658 transitions. [2024-11-19 00:36:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:36:43,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-19 00:36:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:43,004 INFO L225 Difference]: With dead ends: 466 [2024-11-19 00:36:43,004 INFO L226 Difference]: Without dead ends: 252 [2024-11-19 00:36:43,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:43,006 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:43,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:43,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-19 00:36:43,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-11-19 00:36:43,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 199 states have (on average 1.3015075376884422) internal successors, (259), 200 states have internal predecessors, (259), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-19 00:36:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 355 transitions. [2024-11-19 00:36:43,033 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 355 transitions. Word has length 145 [2024-11-19 00:36:43,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:43,034 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 355 transitions. [2024-11-19 00:36:43,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 355 transitions. [2024-11-19 00:36:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 00:36:43,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:43,035 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:43,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:36:43,035 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:43,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:43,036 INFO L85 PathProgramCache]: Analyzing trace with hash -527332804, now seen corresponding path program 1 times [2024-11-19 00:36:43,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:43,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691962757] [2024-11-19 00:36:43,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:43,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:44,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:44,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691962757] [2024-11-19 00:36:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691962757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:44,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:44,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:36:44,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759951857] [2024-11-19 00:36:44,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:44,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:36:44,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:44,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:36:44,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:36:44,029 INFO L87 Difference]: Start difference. First operand 252 states and 355 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 00:36:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:44,313 INFO L93 Difference]: Finished difference Result 560 states and 775 transitions. [2024-11-19 00:36:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:36:44,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-19 00:36:44,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:44,315 INFO L225 Difference]: With dead ends: 560 [2024-11-19 00:36:44,315 INFO L226 Difference]: Without dead ends: 346 [2024-11-19 00:36:44,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:36:44,316 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 51 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:44,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1009 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:36:44,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-19 00:36:44,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2024-11-19 00:36:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 283 states have (on average 1.2968197879858658) internal successors, (367), 286 states have internal predecessors, (367), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-19 00:36:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 471 transitions. [2024-11-19 00:36:44,346 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 471 transitions. Word has length 145 [2024-11-19 00:36:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:44,347 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 471 transitions. [2024-11-19 00:36:44,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 00:36:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 471 transitions. [2024-11-19 00:36:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:36:44,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:44,350 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:44,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:36:44,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:44,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:44,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1554842476, now seen corresponding path program 1 times [2024-11-19 00:36:44,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:44,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86156446] [2024-11-19 00:36:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:44,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:44,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:44,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86156446] [2024-11-19 00:36:44,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86156446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:44,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:44,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:36:44,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200115780] [2024-11-19 00:36:44,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:44,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:36:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:44,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:36:44,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:36:44,953 INFO L87 Difference]: Start difference. First operand 342 states and 471 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:45,366 INFO L93 Difference]: Finished difference Result 736 states and 1008 transitions. [2024-11-19 00:36:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:36:45,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-11-19 00:36:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:45,369 INFO L225 Difference]: With dead ends: 736 [2024-11-19 00:36:45,369 INFO L226 Difference]: Without dead ends: 432 [2024-11-19 00:36:45,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:36:45,371 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 242 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:45,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 914 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:36:45,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-19 00:36:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 321. [2024-11-19 00:36:45,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 274 states have (on average 1.3065693430656935) internal successors, (358), 276 states have internal predecessors, (358), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:36:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 438 transitions. [2024-11-19 00:36:45,394 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 438 transitions. Word has length 146 [2024-11-19 00:36:45,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:45,395 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 438 transitions. [2024-11-19 00:36:45,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:45,395 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 438 transitions. [2024-11-19 00:36:45,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:36:45,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:45,396 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:45,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:36:45,397 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:45,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2039060242, now seen corresponding path program 1 times [2024-11-19 00:36:45,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:45,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416793284] [2024-11-19 00:36:45,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:45,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:45,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:45,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416793284] [2024-11-19 00:36:45,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416793284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:45,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:45,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:36:45,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696359048] [2024-11-19 00:36:45,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:45,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:36:45,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:36:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:36:45,806 INFO L87 Difference]: Start difference. First operand 321 states and 438 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:45,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:45,973 INFO L93 Difference]: Finished difference Result 875 states and 1195 transitions. [2024-11-19 00:36:45,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:36:45,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2024-11-19 00:36:45,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:45,976 INFO L225 Difference]: With dead ends: 875 [2024-11-19 00:36:45,976 INFO L226 Difference]: Without dead ends: 557 [2024-11-19 00:36:45,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:36:45,977 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 105 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:45,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 670 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:36:45,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-19 00:36:46,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 348. [2024-11-19 00:36:46,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 301 states have (on average 1.2923588039867109) internal successors, (389), 303 states have internal predecessors, (389), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:36:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 469 transitions. [2024-11-19 00:36:46,036 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 469 transitions. Word has length 146 [2024-11-19 00:36:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:46,036 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 469 transitions. [2024-11-19 00:36:46,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 469 transitions. [2024-11-19 00:36:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:36:46,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:46,038 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:46,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:36:46,038 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:46,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:46,042 INFO L85 PathProgramCache]: Analyzing trace with hash 737194026, now seen corresponding path program 1 times [2024-11-19 00:36:46,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:46,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066955121] [2024-11-19 00:36:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:46,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:46,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:46,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066955121] [2024-11-19 00:36:46,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066955121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:46,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:46,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:36:46,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804796257] [2024-11-19 00:36:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:46,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:36:46,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:36:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:36:46,597 INFO L87 Difference]: Start difference. First operand 348 states and 469 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:46,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:46,813 INFO L93 Difference]: Finished difference Result 902 states and 1222 transitions. [2024-11-19 00:36:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:36:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2024-11-19 00:36:46,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:46,816 INFO L225 Difference]: With dead ends: 902 [2024-11-19 00:36:46,816 INFO L226 Difference]: Without dead ends: 557 [2024-11-19 00:36:46,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:36:46,817 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 103 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:46,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1041 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:36:46,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-19 00:36:46,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 348. [2024-11-19 00:36:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 301 states have (on average 1.2790697674418605) internal successors, (385), 303 states have internal predecessors, (385), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:36:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 465 transitions. [2024-11-19 00:36:46,882 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 465 transitions. Word has length 146 [2024-11-19 00:36:46,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:46,882 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 465 transitions. [2024-11-19 00:36:46,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:46,885 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 465 transitions. [2024-11-19 00:36:46,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:36:46,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:46,886 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:46,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:36:46,887 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:46,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:46,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1438258604, now seen corresponding path program 1 times [2024-11-19 00:36:46,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:46,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430405447] [2024-11-19 00:36:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:46,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:47,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:47,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430405447] [2024-11-19 00:36:47,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430405447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:47,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:47,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:36:47,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93294447] [2024-11-19 00:36:47,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:47,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:36:47,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:47,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:36:47,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:36:47,689 INFO L87 Difference]: Start difference. First operand 348 states and 465 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:48,139 INFO L93 Difference]: Finished difference Result 772 states and 1032 transitions. [2024-11-19 00:36:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:36:48,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2024-11-19 00:36:48,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:48,142 INFO L225 Difference]: With dead ends: 772 [2024-11-19 00:36:48,145 INFO L226 Difference]: Without dead ends: 427 [2024-11-19 00:36:48,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:36:48,146 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 204 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:48,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1177 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:36:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-19 00:36:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 420. [2024-11-19 00:36:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 357 states have (on average 1.2773109243697478) internal successors, (456), 360 states have internal predecessors, (456), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 00:36:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 564 transitions. [2024-11-19 00:36:48,227 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 564 transitions. Word has length 146 [2024-11-19 00:36:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:48,228 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 564 transitions. [2024-11-19 00:36:48,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:36:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 564 transitions. [2024-11-19 00:36:48,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:36:48,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:48,231 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:48,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:36:48,231 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:48,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:48,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1779057358, now seen corresponding path program 1 times [2024-11-19 00:36:48,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:48,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783133922] [2024-11-19 00:36:48,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:48,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:48,397 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 00:36:48,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:48,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783133922] [2024-11-19 00:36:48,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783133922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:36:48,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77711277] [2024-11-19 00:36:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:48,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:36:48,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:36:48,401 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:36:48,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:36:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:48,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 00:36:48,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:36:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:48,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:36:48,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77711277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:48,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:36:48,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 00:36:48,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174029778] [2024-11-19 00:36:48,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:48,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:36:48,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:48,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:36:48,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:36:48,647 INFO L87 Difference]: Start difference. First operand 420 states and 564 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:48,725 INFO L93 Difference]: Finished difference Result 852 states and 1145 transitions. [2024-11-19 00:36:48,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:36:48,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-19 00:36:48,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:48,728 INFO L225 Difference]: With dead ends: 852 [2024-11-19 00:36:48,728 INFO L226 Difference]: Without dead ends: 435 [2024-11-19 00:36:48,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:36:48,729 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:48,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-19 00:36:48,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2024-11-19 00:36:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 372 states have (on average 1.2661290322580645) internal successors, (471), 375 states have internal predecessors, (471), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 00:36:48,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 579 transitions. [2024-11-19 00:36:48,770 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 579 transitions. Word has length 147 [2024-11-19 00:36:48,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:48,770 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 579 transitions. [2024-11-19 00:36:48,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:48,770 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 579 transitions. [2024-11-19 00:36:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:36:48,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:48,772 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:48,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 00:36:48,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 00:36:48,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:48,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1454574440, now seen corresponding path program 1 times [2024-11-19 00:36:48,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:48,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738298569] [2024-11-19 00:36:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:48,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 00:36:49,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:49,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738298569] [2024-11-19 00:36:49,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738298569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:36:49,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500964301] [2024-11-19 00:36:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:49,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:36:49,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:36:49,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:36:49,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:36:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:49,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 00:36:49,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:36:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:49,359 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:36:49,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500964301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:49,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:36:49,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-19 00:36:49,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273150865] [2024-11-19 00:36:49,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:49,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:36:49,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:49,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:36:49,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:36:49,363 INFO L87 Difference]: Start difference. First operand 435 states and 579 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:49,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:49,422 INFO L93 Difference]: Finished difference Result 887 states and 1180 transitions. [2024-11-19 00:36:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:36:49,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-19 00:36:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:49,425 INFO L225 Difference]: With dead ends: 887 [2024-11-19 00:36:49,425 INFO L226 Difference]: Without dead ends: 455 [2024-11-19 00:36:49,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:36:49,426 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:49,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 725 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:49,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-19 00:36:49,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 449. [2024-11-19 00:36:49,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 386 states have (on average 1.2564766839378239) internal successors, (485), 389 states have internal predecessors, (485), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 00:36:49,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 593 transitions. [2024-11-19 00:36:49,463 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 593 transitions. Word has length 147 [2024-11-19 00:36:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:49,463 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 593 transitions. [2024-11-19 00:36:49,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:36:49,463 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 593 transitions. [2024-11-19 00:36:49,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:36:49,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:49,464 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:49,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 00:36:49,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:36:49,666 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:49,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:49,666 INFO L85 PathProgramCache]: Analyzing trace with hash 150321011, now seen corresponding path program 1 times [2024-11-19 00:36:49,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:49,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55291084] [2024-11-19 00:36:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:49,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:36:56,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:56,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55291084] [2024-11-19 00:36:56,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55291084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:56,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:56,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 00:36:56,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956014869] [2024-11-19 00:36:56,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:56,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:36:56,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:56,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:36:56,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:36:56,329 INFO L87 Difference]: Start difference. First operand 449 states and 593 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 00:37:03,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:07,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:14,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:19,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:24,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:28,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:30,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:43,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:47,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:58,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:37:59,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:59,911 INFO L93 Difference]: Finished difference Result 914 states and 1212 transitions. [2024-11-19 00:37:59,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 00:37:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-19 00:37:59,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:59,915 INFO L225 Difference]: With dead ends: 914 [2024-11-19 00:37:59,915 INFO L226 Difference]: Without dead ends: 729 [2024-11-19 00:37:59,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2024-11-19 00:37:59,917 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 525 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 159 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:59,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 2160 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 954 Invalid, 6 Unknown, 0 Unchecked, 48.3s Time] [2024-11-19 00:37:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-19 00:37:59,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 471. [2024-11-19 00:37:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 408 states have (on average 1.2622549019607843) internal successors, (515), 411 states have internal predecessors, (515), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 00:37:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 623 transitions. [2024-11-19 00:37:59,958 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 623 transitions. Word has length 148 [2024-11-19 00:37:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:59,958 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 623 transitions. [2024-11-19 00:37:59,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 00:37:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 623 transitions. [2024-11-19 00:37:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:37:59,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:59,960 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:59,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:37:59,960 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:59,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:59,960 INFO L85 PathProgramCache]: Analyzing trace with hash 33737139, now seen corresponding path program 1 times [2024-11-19 00:37:59,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:59,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401123854] [2024-11-19 00:37:59,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:59,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:38:00,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:00,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401123854] [2024-11-19 00:38:00,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401123854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:00,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:00,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:38:00,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423942167] [2024-11-19 00:38:00,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:00,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:38:00,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:00,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:38:00,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:38:00,794 INFO L87 Difference]: Start difference. First operand 471 states and 623 transitions. Second operand has 10 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 00:38:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:01,354 INFO L93 Difference]: Finished difference Result 762 states and 1008 transitions. [2024-11-19 00:38:01,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:38:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-19 00:38:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:01,357 INFO L225 Difference]: With dead ends: 762 [2024-11-19 00:38:01,357 INFO L226 Difference]: Without dead ends: 555 [2024-11-19 00:38:01,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:38:01,358 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 110 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:01,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1275 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:38:01,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-19 00:38:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 551. [2024-11-19 00:38:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 472 states have (on average 1.2605932203389831) internal successors, (595), 476 states have internal predecessors, (595), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 64 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-19 00:38:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 731 transitions. [2024-11-19 00:38:01,409 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 731 transitions. Word has length 148 [2024-11-19 00:38:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:01,410 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 731 transitions. [2024-11-19 00:38:01,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 00:38:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 731 transitions. [2024-11-19 00:38:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 00:38:01,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:01,415 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:01,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:38:01,415 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:01,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:01,416 INFO L85 PathProgramCache]: Analyzing trace with hash -594796267, now seen corresponding path program 1 times [2024-11-19 00:38:01,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:01,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197516169] [2024-11-19 00:38:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:01,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:38:02,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:02,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197516169] [2024-11-19 00:38:02,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197516169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:02,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:02,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:38:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20777080] [2024-11-19 00:38:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:02,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:38:02,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:02,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:38:02,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:38:02,427 INFO L87 Difference]: Start difference. First operand 551 states and 731 transitions. Second operand has 9 states, 6 states have (on average 10.333333333333334) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 00:38:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:02,756 INFO L93 Difference]: Finished difference Result 1317 states and 1751 transitions. [2024-11-19 00:38:02,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:38:02,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 10.333333333333334) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2024-11-19 00:38:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:02,759 INFO L225 Difference]: With dead ends: 1317 [2024-11-19 00:38:02,759 INFO L226 Difference]: Without dead ends: 769 [2024-11-19 00:38:02,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:38:02,760 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 92 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:02,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1152 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:38:02,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-19 00:38:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 764. [2024-11-19 00:38:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 654 states have (on average 1.261467889908257) internal successors, (825), 662 states have internal predecessors, (825), 94 states have call successors, (94), 15 states have call predecessors, (94), 15 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 00:38:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1013 transitions. [2024-11-19 00:38:02,839 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1013 transitions. Word has length 149 [2024-11-19 00:38:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:02,840 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 1013 transitions. [2024-11-19 00:38:02,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 10.333333333333334) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 00:38:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1013 transitions. [2024-11-19 00:38:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 00:38:02,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:02,841 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:02,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:38:02,841 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:02,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:02,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1473142871, now seen corresponding path program 1 times [2024-11-19 00:38:02,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:02,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653408738] [2024-11-19 00:38:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:02,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:38:03,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:03,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653408738] [2024-11-19 00:38:03,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653408738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:03,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:03,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:38:03,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029619388] [2024-11-19 00:38:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:03,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:38:03,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:03,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:38:03,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:38:03,958 INFO L87 Difference]: Start difference. First operand 764 states and 1013 transitions. Second operand has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 00:38:04,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:04,301 INFO L93 Difference]: Finished difference Result 1302 states and 1688 transitions. [2024-11-19 00:38:04,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:38:04,302 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2024-11-19 00:38:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:04,306 INFO L225 Difference]: With dead ends: 1302 [2024-11-19 00:38:04,306 INFO L226 Difference]: Without dead ends: 1300 [2024-11-19 00:38:04,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:38:04,307 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 53 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:04,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1041 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:38:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states.