./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.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-ap_file-97.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 5da18b64f81f034a410e9d9e3a5ef42f0e947fe2f02b16f700985c826572c6f8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:52:02,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:52:02,621 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:52:02,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:52:02,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:52:02,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:52:02,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:52:02,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:52:02,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:52:02,656 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:52:02,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:52:02,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:52:02,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:52:02,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:52:02,658 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:52:02,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:52:02,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:52:02,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:52:02,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:52:02,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:52:02,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:52:02,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:52:02,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:52:02,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:52:02,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:52:02,662 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:52:02,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:52:02,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:52:02,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:52:02,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:52:02,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:52:02,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:52:02,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:52:02,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:52:02,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:52:02,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:52:02,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:52:02,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:52:02,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:52:02,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:52:02,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:52:02,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:52:02,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5da18b64f81f034a410e9d9e3a5ef42f0e947fe2f02b16f700985c826572c6f8 [2024-11-19 00:52:02,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:52:02,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:52:02,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:52:02,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:52:02,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:52:02,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.i [2024-11-19 00:52:04,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:52:04,628 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:52:04,632 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.i [2024-11-19 00:52:04,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d3c2761/16814c228c284f209b2e9e899fddbf0b/FLAG064fec109 [2024-11-19 00:52:05,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d3c2761/16814c228c284f209b2e9e899fddbf0b [2024-11-19 00:52:05,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:52:05,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:52:05,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:52:05,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:52:05,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:52:05,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93972a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05, skipping insertion in model container [2024-11-19 00:52:05,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:52:05,201 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-ap_file-97.i[917,930] [2024-11-19 00:52:05,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:52:05,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:52:05,276 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-ap_file-97.i[917,930] [2024-11-19 00:52:05,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:52:05,335 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:52:05,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05 WrapperNode [2024-11-19 00:52:05,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:52:05,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:52:05,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:52:05,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:52:05,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,389 INFO L138 Inliner]: procedures = 29, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 453 [2024-11-19 00:52:05,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:52:05,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:52:05,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:52:05,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:52:05,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,431 INFO L175 MemorySlicer]: Split 116 memory accesses to 6 slices as follows [2, 25, 17, 25, 34, 13]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 3, 2, 3, 5, 2]. The 19 writes are split as follows [0, 4, 2, 4, 7, 2]. [2024-11-19 00:52:05,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:52:05,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:52:05,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:52:05,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:52:05,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (1/1) ... [2024-11-19 00:52:05,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:52:05,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:05,507 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 00:52:05,513 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 00:52:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:52:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:52:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:52:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:52:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:52:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:52:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 00:52:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:52:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:52:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:52:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:52:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:52:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:52:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:52:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:52:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:52:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:52:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:52:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:52:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:52:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:52:05,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:52:05,690 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:52:06,151 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-19 00:52:06,151 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:52:06,164 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:52:06,165 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:52:06,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:52:06 BoogieIcfgContainer [2024-11-19 00:52:06,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:52:06,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:52:06,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:52:06,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:52:06,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:52:05" (1/3) ... [2024-11-19 00:52:06,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aff106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:52:06, skipping insertion in model container [2024-11-19 00:52:06,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:52:05" (2/3) ... [2024-11-19 00:52:06,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aff106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:52:06, skipping insertion in model container [2024-11-19 00:52:06,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:52:06" (3/3) ... [2024-11-19 00:52:06,172 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-97.i [2024-11-19 00:52:06,185 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:52:06,185 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:52:06,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:52:06,254 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;@154f0ab9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:52:06,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:52:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:06,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 00:52:06,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:06,269 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:06,270 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:06,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:06,273 INFO L85 PathProgramCache]: Analyzing trace with hash -128724950, now seen corresponding path program 1 times [2024-11-19 00:52:06,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:06,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389640704] [2024-11-19 00:52:06,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:06,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 00:52:06,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:06,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389640704] [2024-11-19 00:52:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389640704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190346299] [2024-11-19 00:52:06,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:06,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:06,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:06,639 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 00:52:06,640 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 00:52:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:06,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:52:06,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:52:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 00:52:06,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:52:06,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190346299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:06,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:52:06,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:52:06,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458968724] [2024-11-19 00:52:06,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:06,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:52:06,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:06,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:52:06,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:52:06,941 INFO L87 Difference]: Start difference. First operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:52:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:06,964 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2024-11-19 00:52:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:52:06,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-19 00:52:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:06,973 INFO L225 Difference]: With dead ends: 209 [2024-11-19 00:52:06,973 INFO L226 Difference]: Without dead ends: 104 [2024-11-19 00:52:06,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 00:52:06,979 INFO L432 NwaCegarLoop]: 150 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, 150 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 00:52:06,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:52:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-19 00:52:07,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-19 00:52:07,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2024-11-19 00:52:07,019 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 134 [2024-11-19 00:52:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:07,019 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2024-11-19 00:52:07,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:52:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2024-11-19 00:52:07,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 00:52:07,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:07,023 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:07,037 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 00:52:07,224 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 00:52:07,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:07,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:07,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1217556440, now seen corresponding path program 1 times [2024-11-19 00:52:07,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:07,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029951042] [2024-11-19 00:52:07,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:07,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:52:07,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:07,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029951042] [2024-11-19 00:52:07,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029951042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:07,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393612492] [2024-11-19 00:52:07,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:07,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:07,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:07,613 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 00:52:07,614 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 00:52:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:07,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:52:07,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:52:07,890 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:07,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:52:07,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393612492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:07,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:52:07,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 00:52:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528388220] [2024-11-19 00:52:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:07,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:52:07,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:52:07,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:07,895 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:07,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:07,937 INFO L93 Difference]: Finished difference Result 208 states and 301 transitions. [2024-11-19 00:52:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:52:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-19 00:52:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:07,939 INFO L225 Difference]: With dead ends: 208 [2024-11-19 00:52:07,939 INFO L226 Difference]: Without dead ends: 107 [2024-11-19 00:52:07,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:07,941 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:07,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 430 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:52:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-19 00:52:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-11-19 00:52:07,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:07,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2024-11-19 00:52:07,958 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 134 [2024-11-19 00:52:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:07,960 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2024-11-19 00:52:07,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2024-11-19 00:52:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 00:52:07,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:07,964 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:07,978 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 00:52:08,164 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,SelfDestructingSolverStorable1 [2024-11-19 00:52:08,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:08,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:08,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1897614810, now seen corresponding path program 1 times [2024-11-19 00:52:08,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:08,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889597646] [2024-11-19 00:52:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:08,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:52:08,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:08,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889597646] [2024-11-19 00:52:08,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889597646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:08,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583313282] [2024-11-19 00:52:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:08,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:08,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:08,433 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 00:52:08,434 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 00:52:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:08,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:52:08,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:52:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:08,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:52:08,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583313282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:08,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:52:08,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 00:52:08,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654032497] [2024-11-19 00:52:08,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:08,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:52:08,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:08,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:52:08,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:08,651 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:08,684 INFO L93 Difference]: Finished difference Result 212 states and 305 transitions. [2024-11-19 00:52:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:52:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-19 00:52:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:08,686 INFO L225 Difference]: With dead ends: 212 [2024-11-19 00:52:08,686 INFO L226 Difference]: Without dead ends: 109 [2024-11-19 00:52:08,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:08,687 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:08,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 431 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:52:08,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-19 00:52:08,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-19 00:52:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.348314606741573) internal successors, (120), 89 states have internal predecessors, (120), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-19 00:52:08,694 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 134 [2024-11-19 00:52:08,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:08,695 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-19 00:52:08,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-19 00:52:08,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 00:52:08,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:08,697 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:08,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 00:52:08,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:08,898 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:08,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash -622345124, now seen corresponding path program 1 times [2024-11-19 00:52:08,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:08,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691256941] [2024-11-19 00:52:08,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:08,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:52:09,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:09,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691256941] [2024-11-19 00:52:09,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691256941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:09,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197218562] [2024-11-19 00:52:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:09,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:09,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:09,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:52:09,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:52:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:09,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:52:09,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:52:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:09,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:52:09,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197218562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:09,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:52:09,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 00:52:09,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946886409] [2024-11-19 00:52:09,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:09,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:52:09,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:52:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:09,334 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:09,355 INFO L93 Difference]: Finished difference Result 216 states and 309 transitions. [2024-11-19 00:52:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:52:09,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-19 00:52:09,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:09,356 INFO L225 Difference]: With dead ends: 216 [2024-11-19 00:52:09,357 INFO L226 Difference]: Without dead ends: 111 [2024-11-19 00:52:09,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:09,358 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:09,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:52:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-19 00:52:09,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-19 00:52:09,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-11-19 00:52:09,365 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 134 [2024-11-19 00:52:09,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:09,366 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-11-19 00:52:09,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:09,366 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-11-19 00:52:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 00:52:09,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:09,368 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:09,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 00:52:09,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:09,573 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:09,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:09,574 INFO L85 PathProgramCache]: Analyzing trace with hash -620498082, now seen corresponding path program 1 times [2024-11-19 00:52:09,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:09,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415379943] [2024-11-19 00:52:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:09,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:09,760 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:52:09,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:09,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415379943] [2024-11-19 00:52:09,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415379943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:09,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713114674] [2024-11-19 00:52:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:09,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:09,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:09,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:52:09,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 00:52:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:09,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:52:09,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:52:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:09,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:52:09,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713114674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:09,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:52:09,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-19 00:52:09,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33577971] [2024-11-19 00:52:09,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:09,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:52:09,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:09,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:52:09,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:52:09,965 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:09,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:09,981 INFO L93 Difference]: Finished difference Result 219 states and 312 transitions. [2024-11-19 00:52:09,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:52:09,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-19 00:52:09,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:09,983 INFO L225 Difference]: With dead ends: 219 [2024-11-19 00:52:09,983 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 00:52:09,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:52:09,984 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:09,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:52:09,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 00:52:09,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-19 00:52:09,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 158 transitions. [2024-11-19 00:52:09,990 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 158 transitions. Word has length 134 [2024-11-19 00:52:09,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:09,990 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 158 transitions. [2024-11-19 00:52:09,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 158 transitions. [2024-11-19 00:52:09,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 00:52:09,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:09,995 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:10,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 00:52:10,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:10,197 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:10,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:10,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2145792496, now seen corresponding path program 1 times [2024-11-19 00:52:10,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:10,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699184248] [2024-11-19 00:52:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:10,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:10,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699184248] [2024-11-19 00:52:10,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699184248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:10,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:52:10,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:52:10,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496985643] [2024-11-19 00:52:10,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:10,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:52:10,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:52:10,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:52:10,718 INFO L87 Difference]: Start difference. First operand 112 states and 158 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:10,813 INFO L93 Difference]: Finished difference Result 263 states and 368 transitions. [2024-11-19 00:52:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:52:10,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-19 00:52:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:10,814 INFO L225 Difference]: With dead ends: 263 [2024-11-19 00:52:10,814 INFO L226 Difference]: Without dead ends: 154 [2024-11-19 00:52:10,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:10,815 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 167 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:10,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 526 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:52:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-19 00:52:10,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 114. [2024-11-19 00:52:10,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2024-11-19 00:52:10,827 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 136 [2024-11-19 00:52:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:10,827 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2024-11-19 00:52:10,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2024-11-19 00:52:10,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 00:52:10,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:10,828 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:10,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:52:10,828 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:10,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:10,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1222911559, now seen corresponding path program 1 times [2024-11-19 00:52:10,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:10,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956067820] [2024-11-19 00:52:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:10,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:52:11,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:11,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956067820] [2024-11-19 00:52:11,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956067820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:11,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55605867] [2024-11-19 00:52:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:11,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:11,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:11,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:52:11,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 00:52:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:12,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-19 00:52:12,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:52:12,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 00:52:12,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 00:52:13,202 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-19 00:52:13,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2024-11-19 00:52:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 1 proven. 123 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:52:13,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:52:13,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55605867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:13,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 00:52:13,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2024-11-19 00:52:13,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634245449] [2024-11-19 00:52:13,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 00:52:13,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 00:52:13,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:13,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 00:52:13,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2024-11-19 00:52:13,554 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 21 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-19 00:52:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:14,219 INFO L93 Difference]: Finished difference Result 292 states and 407 transitions. [2024-11-19 00:52:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:52:14,219 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) Word has length 136 [2024-11-19 00:52:14,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:14,220 INFO L225 Difference]: With dead ends: 292 [2024-11-19 00:52:14,221 INFO L226 Difference]: Without dead ends: 181 [2024-11-19 00:52:14,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=1097, Unknown=0, NotChecked=0, Total=1332 [2024-11-19 00:52:14,222 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 648 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:14,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1420 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:52:14,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-19 00:52:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 129. [2024-11-19 00:52:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.3302752293577982) internal successors, (145), 109 states have internal predecessors, (145), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:52:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 179 transitions. [2024-11-19 00:52:14,235 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 179 transitions. Word has length 136 [2024-11-19 00:52:14,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:14,236 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 179 transitions. [2024-11-19 00:52:14,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-19 00:52:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 179 transitions. [2024-11-19 00:52:14,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 00:52:14,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:14,237 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:14,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 00:52:14,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:14,442 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:14,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:14,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1356925065, now seen corresponding path program 1 times [2024-11-19 00:52:14,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:14,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894218774] [2024-11-19 00:52:14,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:14,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:52:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894218774] [2024-11-19 00:52:15,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894218774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:52:15,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823665571] [2024-11-19 00:52:15,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:15,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:15,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:52:15,685 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:52:15,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 00:52:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:15,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-19 00:52:15,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:52:16,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 00:52:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 14 proven. 162 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-19 00:52:16,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:52:16,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2024-11-19 00:52:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:52:16,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823665571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:52:16,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:52:16,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 24 [2024-11-19 00:52:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616993586] [2024-11-19 00:52:16,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:52:16,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 00:52:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:16,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 00:52:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2024-11-19 00:52:16,679 INFO L87 Difference]: Start difference. First operand 129 states and 179 transitions. Second operand has 24 states, 21 states have (on average 6.523809523809524) internal successors, (137), 23 states have internal predecessors, (137), 10 states have call successors, (51), 4 states have call predecessors, (51), 6 states have return successors, (51), 7 states have call predecessors, (51), 10 states have call successors, (51) [2024-11-19 00:52:18,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:18,236 INFO L93 Difference]: Finished difference Result 346 states and 470 transitions. [2024-11-19 00:52:18,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 00:52:18,237 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 6.523809523809524) internal successors, (137), 23 states have internal predecessors, (137), 10 states have call successors, (51), 4 states have call predecessors, (51), 6 states have return successors, (51), 7 states have call predecessors, (51), 10 states have call successors, (51) Word has length 136 [2024-11-19 00:52:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:18,238 INFO L225 Difference]: With dead ends: 346 [2024-11-19 00:52:18,238 INFO L226 Difference]: Without dead ends: 220 [2024-11-19 00:52:18,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=416, Invalid=1654, Unknown=0, NotChecked=0, Total=2070 [2024-11-19 00:52:18,239 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 781 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:18,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1344 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:52:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-19 00:52:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2024-11-19 00:52:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 186 states have (on average 1.3118279569892473) internal successors, (244), 187 states have internal predecessors, (244), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 00:52:18,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 288 transitions. [2024-11-19 00:52:18,252 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 288 transitions. Word has length 136 [2024-11-19 00:52:18,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:18,253 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 288 transitions. [2024-11-19 00:52:18,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 6.523809523809524) internal successors, (137), 23 states have internal predecessors, (137), 10 states have call successors, (51), 4 states have call predecessors, (51), 6 states have return successors, (51), 7 states have call predecessors, (51), 10 states have call successors, (51) [2024-11-19 00:52:18,253 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 288 transitions. [2024-11-19 00:52:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 00:52:18,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:18,254 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:18,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 00:52:18,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:52:18,459 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:18,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:18,459 INFO L85 PathProgramCache]: Analyzing trace with hash -301909567, now seen corresponding path program 1 times [2024-11-19 00:52:18,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:18,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491739679] [2024-11-19 00:52:18,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:18,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:18,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:18,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491739679] [2024-11-19 00:52:18,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491739679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:18,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:52:18,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:52:18,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452227455] [2024-11-19 00:52:18,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:18,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:52:18,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:18,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:52:18,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:52:18,728 INFO L87 Difference]: Start difference. First operand 215 states and 288 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:18,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:18,897 INFO L93 Difference]: Finished difference Result 591 states and 786 transitions. [2024-11-19 00:52:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:52:18,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-19 00:52:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:18,904 INFO L225 Difference]: With dead ends: 591 [2024-11-19 00:52:18,904 INFO L226 Difference]: Without dead ends: 379 [2024-11-19 00:52:18,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:52:18,905 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 94 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:18,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 996 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:52:18,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-19 00:52:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 372. [2024-11-19 00:52:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 323 states have (on average 1.303405572755418) internal successors, (421), 326 states have internal predecessors, (421), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:52:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 493 transitions. [2024-11-19 00:52:18,930 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 493 transitions. Word has length 137 [2024-11-19 00:52:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:18,931 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 493 transitions. [2024-11-19 00:52:18,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 493 transitions. [2024-11-19 00:52:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 00:52:18,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:18,932 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:18,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:52:18,932 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:18,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1396815483, now seen corresponding path program 1 times [2024-11-19 00:52:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558255792] [2024-11-19 00:52:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:18,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:19,478 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:19,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:19,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558255792] [2024-11-19 00:52:19,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558255792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:19,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:52:19,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:52:19,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903011464] [2024-11-19 00:52:19,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:19,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:52:19,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:19,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:52:19,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:52:19,481 INFO L87 Difference]: Start difference. First operand 372 states and 493 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:52:19,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:19,978 INFO L93 Difference]: Finished difference Result 922 states and 1202 transitions. [2024-11-19 00:52:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:52:19,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-19 00:52:19,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:19,981 INFO L225 Difference]: With dead ends: 922 [2024-11-19 00:52:19,981 INFO L226 Difference]: Without dead ends: 553 [2024-11-19 00:52:19,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:52:19,983 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 288 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:19,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1354 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:52:19,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-19 00:52:20,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 354. [2024-11-19 00:52:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 301 states have (on average 1.282392026578073) internal successors, (386), 304 states have internal predecessors, (386), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 00:52:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 462 transitions. [2024-11-19 00:52:20,017 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 462 transitions. Word has length 138 [2024-11-19 00:52:20,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:20,020 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 462 transitions. [2024-11-19 00:52:20,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:52:20,020 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 462 transitions. [2024-11-19 00:52:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:52:20,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:20,022 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:20,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:52:20,022 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:20,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:20,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1124690120, now seen corresponding path program 1 times [2024-11-19 00:52:20,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:20,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753959750] [2024-11-19 00:52:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:20,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:20,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:20,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753959750] [2024-11-19 00:52:20,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753959750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:20,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:52:20,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:52:20,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652621086] [2024-11-19 00:52:20,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:20,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:52:20,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:20,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:52:20,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:52:20,756 INFO L87 Difference]: Start difference. First operand 354 states and 462 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:52:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:21,538 INFO L93 Difference]: Finished difference Result 947 states and 1223 transitions. [2024-11-19 00:52:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:52:21,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-19 00:52:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:21,541 INFO L225 Difference]: With dead ends: 947 [2024-11-19 00:52:21,541 INFO L226 Difference]: Without dead ends: 619 [2024-11-19 00:52:21,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:52:21,542 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 330 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:21,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1215 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:52:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-19 00:52:21,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 328. [2024-11-19 00:52:21,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.2801418439716312) internal successors, (361), 284 states have internal predecessors, (361), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-19 00:52:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 427 transitions. [2024-11-19 00:52:21,569 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 427 transitions. Word has length 139 [2024-11-19 00:52:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:21,570 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 427 transitions. [2024-11-19 00:52:21,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:52:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 427 transitions. [2024-11-19 00:52:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:52:21,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:21,571 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:21,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:52:21,571 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:21,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:21,572 INFO L85 PathProgramCache]: Analyzing trace with hash 23984987, now seen corresponding path program 1 times [2024-11-19 00:52:21,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:21,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204906581] [2024-11-19 00:52:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:21,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:21,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:21,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204906581] [2024-11-19 00:52:21,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204906581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:21,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:52:21,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:52:21,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292368677] [2024-11-19 00:52:21,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:21,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:52:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:21,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:52:21,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:52:21,847 INFO L87 Difference]: Start difference. First operand 328 states and 427 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:52:22,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:22,104 INFO L93 Difference]: Finished difference Result 717 states and 931 transitions. [2024-11-19 00:52:22,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:52:22,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-19 00:52:22,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:22,106 INFO L225 Difference]: With dead ends: 717 [2024-11-19 00:52:22,106 INFO L226 Difference]: Without dead ends: 392 [2024-11-19 00:52:22,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:52:22,107 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 322 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:22,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 416 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:52:22,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-19 00:52:22,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 328. [2024-11-19 00:52:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.2730496453900708) internal successors, (359), 284 states have internal predecessors, (359), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-19 00:52:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 425 transitions. [2024-11-19 00:52:22,138 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 425 transitions. Word has length 139 [2024-11-19 00:52:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:22,138 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 425 transitions. [2024-11-19 00:52:22,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:52:22,139 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 425 transitions. [2024-11-19 00:52:22,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:52:22,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:22,140 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:22,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:52:22,141 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:22,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:22,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1187092364, now seen corresponding path program 1 times [2024-11-19 00:52:22,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:22,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219967954] [2024-11-19 00:52:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:22,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:52:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:52:22,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:52:22,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219967954] [2024-11-19 00:52:22,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219967954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:52:22,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:52:22,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:52:22,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260052457] [2024-11-19 00:52:22,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:52:22,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:52:22,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:52:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:52:22,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:52:22,418 INFO L87 Difference]: Start difference. First operand 328 states and 425 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:22,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:52:22,570 INFO L93 Difference]: Finished difference Result 696 states and 902 transitions. [2024-11-19 00:52:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:52:22,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-19 00:52:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:52:22,572 INFO L225 Difference]: With dead ends: 696 [2024-11-19 00:52:22,572 INFO L226 Difference]: Without dead ends: 371 [2024-11-19 00:52:22,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:52:22,574 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 115 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:52:22,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 644 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:52:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-19 00:52:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 328. [2024-11-19 00:52:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.2659574468085106) internal successors, (357), 284 states have internal predecessors, (357), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-19 00:52:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 423 transitions. [2024-11-19 00:52:22,610 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 423 transitions. Word has length 140 [2024-11-19 00:52:22,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:52:22,610 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 423 transitions. [2024-11-19 00:52:22,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:52:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 423 transitions. [2024-11-19 00:52:22,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:52:22,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:52:22,612 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:22,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:52:22,612 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:52:22,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:52:22,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1519527030, now seen corresponding path program 1 times [2024-11-19 00:52:22,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:52:22,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26786311] [2024-11-19 00:52:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:52:22,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:52:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat