./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.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-38.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 a36341ca3b6735c9c3bbbcd02a53abde3dd875a5cb707d1c87b09a60c1d040c7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:45:12,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:45:12,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:45:12,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:45:12,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:45:12,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:45:12,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:45:12,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:45:12,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:45:12,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:45:12,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:45:12,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:45:12,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:45:12,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:45:12,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:45:12,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:45:12,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:45:12,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:45:12,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:45:12,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:45:12,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:45:12,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:45:12,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:45:12,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:45:12,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:45:12,434 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:45:12,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:45:12,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:45:12,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:45:12,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:45:12,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:45:12,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:45:12,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:45:12,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:45:12,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:45:12,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:45:12,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:45:12,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:45:12,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:45:12,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:45:12,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:45:12,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:45:12,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a36341ca3b6735c9c3bbbcd02a53abde3dd875a5cb707d1c87b09a60c1d040c7 [2024-11-19 00:45:12,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:45:12,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:45:12,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:45:12,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:45:12,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:45:12,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i [2024-11-19 00:45:14,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:45:14,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:45:14,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i [2024-11-19 00:45:14,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0871b403/4cca21bca4384305904ba2fcfe0ded11/FLAG25c7c3bb7 [2024-11-19 00:45:14,595 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0871b403/4cca21bca4384305904ba2fcfe0ded11 [2024-11-19 00:45:14,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:45:14,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:45:14,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:45:14,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:45:14,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:45:14,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:14,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142f60b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14, skipping insertion in model container [2024-11-19 00:45:14,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:14,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:45:14,770 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-38.i[917,930] [2024-11-19 00:45:14,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:45:14,844 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:45:14,856 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-38.i[917,930] [2024-11-19 00:45:14,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:45:14,939 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:45:14,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14 WrapperNode [2024-11-19 00:45:14,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:45:14,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:45:14,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:45:14,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:45:14,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:14,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,011 INFO L138 Inliner]: procedures = 29, calls = 180, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 518 [2024-11-19 00:45:15,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:45:15,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:45:15,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:45:15,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:45:15,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,047 INFO L175 MemorySlicer]: Split 141 memory accesses to 5 slices as follows [2, 22, 35, 9, 73]. 52 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 3, 5, 2, 9]. The 21 writes are split as follows [0, 3, 5, 2, 11]. [2024-11-19 00:45:15,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:45:15,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:45:15,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:45:15,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:45:15,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (1/1) ... [2024-11-19 00:45:15,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:45:15,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:15,109 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 00:45:15,111 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 00:45:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:45:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:45:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:45:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:45:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:45:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:45:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:45:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:45:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:45:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:45:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:45:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:45:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:45:15,253 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:45:15,254 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:45:15,701 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-19 00:45:15,701 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:45:15,717 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:45:15,717 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:45:15,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:45:15 BoogieIcfgContainer [2024-11-19 00:45:15,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:45:15,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:45:15,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:45:15,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:45:15,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:45:14" (1/3) ... [2024-11-19 00:45:15,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c47d141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:45:15, skipping insertion in model container [2024-11-19 00:45:15,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:14" (2/3) ... [2024-11-19 00:45:15,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c47d141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:45:15, skipping insertion in model container [2024-11-19 00:45:15,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:45:15" (3/3) ... [2024-11-19 00:45:15,725 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-38.i [2024-11-19 00:45:15,737 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:45:15,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:45:15,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:45:15,786 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;@3297c2b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:45:15,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:45:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 96 states have internal predecessors, (131), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 00:45:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 00:45:15,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:15,803 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:15,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:15,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1484720315, now seen corresponding path program 1 times [2024-11-19 00:45:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:15,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25553996] [2024-11-19 00:45:15,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:15,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2024-11-19 00:45:16,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:16,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25553996] [2024-11-19 00:45:16,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25553996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:16,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973186641] [2024-11-19 00:45:16,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:16,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:45:16,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:16,119 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 00:45:16,120 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 00:45:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:16,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:45:16,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:45:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2024-11-19 00:45:16,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:45:16,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973186641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:16,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:45:16,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:45:16,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213020303] [2024-11-19 00:45:16,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:16,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:45:16,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:16,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:45:16,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:45:16,528 INFO L87 Difference]: Start difference. First operand has 122 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 96 states have internal predecessors, (131), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-19 00:45:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:16,552 INFO L93 Difference]: Finished difference Result 237 states and 376 transitions. [2024-11-19 00:45:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:45:16,555 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2024-11-19 00:45:16,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:16,560 INFO L225 Difference]: With dead ends: 237 [2024-11-19 00:45:16,561 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 00:45:16,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 185 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 00:45:16,566 INFO L432 NwaCegarLoop]: 172 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, 172 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 00:45:16,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:45:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 00:45:16,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 00:45:16,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 92 states have (on average 1.3478260869565217) internal successors, (124), 92 states have internal predecessors, (124), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 00:45:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2024-11-19 00:45:16,610 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 172 transitions. Word has length 184 [2024-11-19 00:45:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:16,610 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 172 transitions. [2024-11-19 00:45:16,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-19 00:45:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 172 transitions. [2024-11-19 00:45:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 00:45:16,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:16,614 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:16,627 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 00:45:16,814 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 00:45:16,815 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:16,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:16,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1050794083, now seen corresponding path program 1 times [2024-11-19 00:45:16,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:16,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022285872] [2024-11-19 00:45:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:17,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:17,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022285872] [2024-11-19 00:45:17,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022285872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:17,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:17,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:45:17,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165441770] [2024-11-19 00:45:17,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:17,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:45:17,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:17,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:45:17,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:45:17,371 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-19 00:45:17,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:17,492 INFO L93 Difference]: Finished difference Result 268 states and 391 transitions. [2024-11-19 00:45:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:45:17,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 184 [2024-11-19 00:45:17,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:17,497 INFO L225 Difference]: With dead ends: 268 [2024-11-19 00:45:17,497 INFO L226 Difference]: Without dead ends: 153 [2024-11-19 00:45:17,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:45:17,499 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 48 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:17,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 622 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:45:17,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-19 00:45:17,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 121. [2024-11-19 00:45:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 95 states have (on average 1.3368421052631578) internal successors, (127), 95 states have internal predecessors, (127), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 00:45:17,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 175 transitions. [2024-11-19 00:45:17,521 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 175 transitions. Word has length 184 [2024-11-19 00:45:17,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:17,523 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 175 transitions. [2024-11-19 00:45:17,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-19 00:45:17,523 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 175 transitions. [2024-11-19 00:45:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 00:45:17,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:17,527 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:17,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:45:17,528 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:17,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:17,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1250137949, now seen corresponding path program 1 times [2024-11-19 00:45:17,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:17,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026747504] [2024-11-19 00:45:17,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:17,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:20,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:20,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:20,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026747504] [2024-11-19 00:45:20,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026747504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:20,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:20,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 00:45:20,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618920055] [2024-11-19 00:45:20,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:20,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 00:45:20,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:20,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 00:45:20,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:45:20,506 INFO L87 Difference]: Start difference. First operand 121 states and 175 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:21,584 INFO L93 Difference]: Finished difference Result 333 states and 483 transitions. [2024-11-19 00:45:21,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:45:21,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 184 [2024-11-19 00:45:21,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:21,587 INFO L225 Difference]: With dead ends: 333 [2024-11-19 00:45:21,587 INFO L226 Difference]: Without dead ends: 215 [2024-11-19 00:45:21,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-11-19 00:45:21,589 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 270 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:21,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1348 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:45:21,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-19 00:45:21,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 212. [2024-11-19 00:45:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 173 states have (on average 1.3641618497109826) internal successors, (236), 174 states have internal predecessors, (236), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:45:21,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 308 transitions. [2024-11-19 00:45:21,632 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 308 transitions. Word has length 184 [2024-11-19 00:45:21,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:21,632 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 308 transitions. [2024-11-19 00:45:21,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 308 transitions. [2024-11-19 00:45:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 00:45:21,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:21,638 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:21,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:45:21,639 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:21,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1836943963, now seen corresponding path program 1 times [2024-11-19 00:45:21,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:21,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045054324] [2024-11-19 00:45:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:21,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:24,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:24,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:24,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045054324] [2024-11-19 00:45:24,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045054324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:24,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:24,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 00:45:24,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363757291] [2024-11-19 00:45:24,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:24,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 00:45:24,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:24,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 00:45:24,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:45:24,137 INFO L87 Difference]: Start difference. First operand 212 states and 308 transitions. Second operand has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:25,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:25,805 INFO L93 Difference]: Finished difference Result 561 states and 813 transitions. [2024-11-19 00:45:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:45:25,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 184 [2024-11-19 00:45:25,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:25,809 INFO L225 Difference]: With dead ends: 561 [2024-11-19 00:45:25,809 INFO L226 Difference]: Without dead ends: 352 [2024-11-19 00:45:25,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:45:25,811 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 744 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:25,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1050 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:45:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-19 00:45:25,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 210. [2024-11-19 00:45:25,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.3567251461988303) internal successors, (232), 172 states have internal predecessors, (232), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:45:25,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 304 transitions. [2024-11-19 00:45:25,837 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 304 transitions. Word has length 184 [2024-11-19 00:45:25,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:25,838 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 304 transitions. [2024-11-19 00:45:25,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:25,838 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 304 transitions. [2024-11-19 00:45:25,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 00:45:25,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:25,840 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:25,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:45:25,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:25,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:25,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1031283231, now seen corresponding path program 1 times [2024-11-19 00:45:25,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:25,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121147551] [2024-11-19 00:45:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:25,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:27,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:27,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121147551] [2024-11-19 00:45:27,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121147551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:27,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:27,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:45:27,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927013009] [2024-11-19 00:45:27,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:27,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:45:27,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:45:27,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:45:27,078 INFO L87 Difference]: Start difference. First operand 210 states and 304 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 00:45:27,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:27,720 INFO L93 Difference]: Finished difference Result 496 states and 719 transitions. [2024-11-19 00:45:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:45:27,721 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 184 [2024-11-19 00:45:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:27,723 INFO L225 Difference]: With dead ends: 496 [2024-11-19 00:45:27,723 INFO L226 Difference]: Without dead ends: 289 [2024-11-19 00:45:27,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:45:27,725 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 554 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:27,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 825 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:45:27,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-19 00:45:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 214. [2024-11-19 00:45:27,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 175 states have (on average 1.3542857142857143) internal successors, (237), 176 states have internal predecessors, (237), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:45:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 309 transitions. [2024-11-19 00:45:27,759 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 309 transitions. Word has length 184 [2024-11-19 00:45:27,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:27,762 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 309 transitions. [2024-11-19 00:45:27,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 00:45:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 309 transitions. [2024-11-19 00:45:27,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 00:45:27,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:27,765 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:27,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:45:27,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:27,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:27,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1618089245, now seen corresponding path program 1 times [2024-11-19 00:45:27,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:27,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233734911] [2024-11-19 00:45:27,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:27,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:31,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:31,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233734911] [2024-11-19 00:45:31,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233734911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:31,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:31,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 00:45:31,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957802239] [2024-11-19 00:45:31,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:31,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:45:31,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:45:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:45:31,023 INFO L87 Difference]: Start difference. First operand 214 states and 309 transitions. Second operand has 16 states, 13 states have (on average 5.153846153846154) internal successors, (67), 15 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:32,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:32,781 INFO L93 Difference]: Finished difference Result 515 states and 744 transitions. [2024-11-19 00:45:32,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:45:32,782 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.153846153846154) internal successors, (67), 15 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 184 [2024-11-19 00:45:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:32,784 INFO L225 Difference]: With dead ends: 515 [2024-11-19 00:45:32,786 INFO L226 Difference]: Without dead ends: 304 [2024-11-19 00:45:32,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2024-11-19 00:45:32,787 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 379 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:32,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1944 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:45:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-19 00:45:32,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 227. [2024-11-19 00:45:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 188 states have (on average 1.3563829787234043) internal successors, (255), 189 states have internal predecessors, (255), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:45:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 327 transitions. [2024-11-19 00:45:32,852 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 327 transitions. Word has length 184 [2024-11-19 00:45:32,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:32,852 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 327 transitions. [2024-11-19 00:45:32,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.153846153846154) internal successors, (67), 15 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 327 transitions. [2024-11-19 00:45:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 00:45:32,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:32,857 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:32,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:45:32,857 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:32,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:32,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1859229601, now seen corresponding path program 1 times [2024-11-19 00:45:32,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:32,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092406021] [2024-11-19 00:45:32,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:32,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:34,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:34,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092406021] [2024-11-19 00:45:34,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092406021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:34,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:34,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 00:45:34,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986820755] [2024-11-19 00:45:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:34,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 00:45:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 00:45:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:45:34,927 INFO L87 Difference]: Start difference. First operand 227 states and 327 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:36,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:36,058 INFO L93 Difference]: Finished difference Result 528 states and 761 transitions. [2024-11-19 00:45:36,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:45:36,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 184 [2024-11-19 00:45:36,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:36,061 INFO L225 Difference]: With dead ends: 528 [2024-11-19 00:45:36,061 INFO L226 Difference]: Without dead ends: 304 [2024-11-19 00:45:36,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-11-19 00:45:36,062 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 290 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:36,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1698 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:45:36,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-19 00:45:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 212. [2024-11-19 00:45:36,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 173 states have (on average 1.3526011560693643) internal successors, (234), 174 states have internal predecessors, (234), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:45:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 306 transitions. [2024-11-19 00:45:36,089 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 306 transitions. Word has length 184 [2024-11-19 00:45:36,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:36,092 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 306 transitions. [2024-11-19 00:45:36,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 00:45:36,092 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 306 transitions. [2024-11-19 00:45:36,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-19 00:45:36,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:36,093 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:36,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:45:36,094 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:36,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:36,095 INFO L85 PathProgramCache]: Analyzing trace with hash 264748477, now seen corresponding path program 1 times [2024-11-19 00:45:36,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:36,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753019237] [2024-11-19 00:45:36,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:36,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:36,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:36,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753019237] [2024-11-19 00:45:36,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753019237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:36,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:36,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:45:36,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493456956] [2024-11-19 00:45:36,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:36,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:45:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:36,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:45:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:45:36,231 INFO L87 Difference]: Start difference. First operand 212 states and 306 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-19 00:45:36,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:36,283 INFO L93 Difference]: Finished difference Result 421 states and 609 transitions. [2024-11-19 00:45:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:45:36,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 185 [2024-11-19 00:45:36,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:36,289 INFO L225 Difference]: With dead ends: 421 [2024-11-19 00:45:36,289 INFO L226 Difference]: Without dead ends: 212 [2024-11-19 00:45:36,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:45:36,290 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:36,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 485 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:45:36,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-19 00:45:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-19 00:45:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 173 states have (on average 1.3410404624277457) internal successors, (232), 174 states have internal predecessors, (232), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:45:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 304 transitions. [2024-11-19 00:45:36,319 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 304 transitions. Word has length 185 [2024-11-19 00:45:36,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:36,319 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 304 transitions. [2024-11-19 00:45:36,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-19 00:45:36,320 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 304 transitions. [2024-11-19 00:45:36,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-19 00:45:36,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:36,321 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:36,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:45:36,321 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:36,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1729973726, now seen corresponding path program 1 times [2024-11-19 00:45:36,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:36,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095774761] [2024-11-19 00:45:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:36,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-19 00:45:41,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:41,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095774761] [2024-11-19 00:45:41,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095774761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:41,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:41,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-19 00:45:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18861671] [2024-11-19 00:45:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:41,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-19 00:45:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-19 00:45:41,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:45:41,419 INFO L87 Difference]: Start difference. First operand 212 states and 304 transitions. Second operand has 22 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-19 00:45:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:45,468 INFO L93 Difference]: Finished difference Result 560 states and 805 transitions. [2024-11-19 00:45:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 00:45:45,468 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 186 [2024-11-19 00:45:45,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:45,470 INFO L225 Difference]: With dead ends: 560 [2024-11-19 00:45:45,471 INFO L226 Difference]: Without dead ends: 351 [2024-11-19 00:45:45,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=250, Invalid=1390, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 00:45:45,472 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 660 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:45,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 2030 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 00:45:45,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-19 00:45:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 301. [2024-11-19 00:45:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 251 states have (on average 1.3386454183266931) internal successors, (336), 253 states have internal predecessors, (336), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 00:45:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 428 transitions. [2024-11-19 00:45:45,515 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 428 transitions. Word has length 186 [2024-11-19 00:45:45,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:45,515 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 428 transitions. [2024-11-19 00:45:45,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-19 00:45:45,515 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 428 transitions. [2024-11-19 00:45:45,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-19 00:45:45,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:45,517 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:45,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:45:45,517 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:45,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1049915356, now seen corresponding path program 1 times [2024-11-19 00:45:45,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:45,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564552870] [2024-11-19 00:45:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 120 proven. 12 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-11-19 00:45:47,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:47,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564552870] [2024-11-19 00:45:47,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564552870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:47,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304763996] [2024-11-19 00:45:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:47,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:45:47,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:47,582 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 00:45:47,583 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 00:45:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:47,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-19 00:45:47,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:45:51,187 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 00:45:51,623 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 00:45:52,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-19 00:45:52,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:45:52,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:45:52,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-19 00:45:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:45:52,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:45:52,877 INFO L349 Elim1Store]: treesize reduction 100, result has 30.1 percent of original size [2024-11-19 00:45:52,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 53 treesize of output 84 [2024-11-19 00:45:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 215 proven. 182 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2024-11-19 00:45:56,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:46:26,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304763996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:46:26,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 00:46:26,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2024-11-19 00:46:26,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973167990] [2024-11-19 00:46:26,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 00:46:26,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-19 00:46:26,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:46:26,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-19 00:46:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1156, Unknown=7, NotChecked=0, Total=1332 [2024-11-19 00:46:26,848 INFO L87 Difference]: Start difference. First operand 301 states and 428 transitions. Second operand has 33 states, 29 states have (on average 4.896551724137931) internal successors, (142), 31 states have internal predecessors, (142), 10 states have call successors, (48), 5 states have call predecessors, (48), 7 states have return successors, (48), 8 states have call predecessors, (48), 10 states have call successors, (48) [2024-11-19 00:46:32,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-19 00:46:36,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]