./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 62cd8631d3c7dbcc2748663d6a0cde2e3de4d2e71baf8db333c770b90174d49b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:28:03,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:28:03,266 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:28:03,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:28:03,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:28:03,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:28:03,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:28:03,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:28:03,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:28:03,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:28:03,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:28:03,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:28:03,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:28:03,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:28:03,313 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:28:03,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:28:03,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:28:03,314 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:28:03,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:28:03,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:28:03,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:28:03,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:28:03,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:28:03,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:28:03,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:28:03,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:28:03,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:28:03,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:28:03,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:28:03,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:28:03,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:28:03,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:28:03,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:28:03,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:28:03,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:28:03,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:28:03,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:28:03,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:28:03,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:28:03,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:28:03,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:28:03,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:28:03,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62cd8631d3c7dbcc2748663d6a0cde2e3de4d2e71baf8db333c770b90174d49b [2024-10-24 11:28:03,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:28:03,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:28:03,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:28:03,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:28:03,612 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:28:03,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i [2024-10-24 11:28:05,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:28:05,290 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:28:05,291 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i [2024-10-24 11:28:05,302 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf2be138/919c5750e5bf4f8fa2d174d39d0b56f3/FLAG4454ecd50 [2024-10-24 11:28:05,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf2be138/919c5750e5bf4f8fa2d174d39d0b56f3 [2024-10-24 11:28:05,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:28:05,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:28:05,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:28:05,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:28:05,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:28:05,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:28:05" (1/1) ... [2024-10-24 11:28:05,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c386cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:05, skipping insertion in model container [2024-10-24 11:28:05,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:28:05" (1/1) ... [2024-10-24 11:28:05,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:28:05,871 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i[917,930] [2024-10-24 11:28:05,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:28:05,945 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:28:05,956 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i[917,930] [2024-10-24 11:28:05,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:28:06,022 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:28:06,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06 WrapperNode [2024-10-24 11:28:06,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:28:06,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:28:06,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:28:06,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:28:06,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,099 INFO L138 Inliner]: procedures = 29, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2024-10-24 11:28:06,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:28:06,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:28:06,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:28:06,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:28:06,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,146 INFO L175 MemorySlicer]: Split 133 memory accesses to 5 slices as follows [2, 45, 20, 39, 27]. 34 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 6, 2, 5, 2]. The 18 writes are split as follows [0, 9, 2, 5, 2]. [2024-10-24 11:28:06,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:28:06,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:28:06,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:28:06,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:28:06,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (1/1) ... [2024-10-24 11:28:06,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:28:06,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:28:06,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:28:06,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:28:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:28:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 11:28:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 11:28:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-24 11:28:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-24 11:28:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-24 11:28:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:28:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-24 11:28:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-24 11:28:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-24 11:28:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-24 11:28:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:28:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:28:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:28:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:28:06,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:28:06,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:28:06,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:28:06,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:28:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:28:06,476 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:28:06,478 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:28:07,125 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-24 11:28:07,125 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:28:07,192 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:28:07,192 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:28:07,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:28:07 BoogieIcfgContainer [2024-10-24 11:28:07,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:28:07,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:28:07,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:28:07,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:28:07,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:28:05" (1/3) ... [2024-10-24 11:28:07,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3108fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:28:07, skipping insertion in model container [2024-10-24 11:28:07,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:06" (2/3) ... [2024-10-24 11:28:07,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3108fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:28:07, skipping insertion in model container [2024-10-24 11:28:07,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:28:07" (3/3) ... [2024-10-24 11:28:07,202 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-53.i [2024-10-24 11:28:07,218 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:28:07,219 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:28:07,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:28:07,285 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;@527eb0aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:28:07,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:28:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:28:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:28:07,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:07,306 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:07,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:07,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:07,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1983161675, now seen corresponding path program 1 times [2024-10-24 11:28:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:07,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877390334] [2024-10-24 11:28:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:07,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:07,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:07,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877390334] [2024-10-24 11:28:07,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877390334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:07,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:07,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:28:07,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728372796] [2024-10-24 11:28:07,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:07,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:28:07,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:07,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:28:07,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:28:07,854 INFO L87 Difference]: Start difference. First operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:07,909 INFO L93 Difference]: Finished difference Result 207 states and 330 transitions. [2024-10-24 11:28:07,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:28:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2024-10-24 11:28:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:07,921 INFO L225 Difference]: With dead ends: 207 [2024-10-24 11:28:07,921 INFO L226 Difference]: Without dead ends: 103 [2024-10-24 11:28:07,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:28:07,931 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:07,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:28:07,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-24 11:28:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-24 11:28:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 83 states have internal predecessors, (114), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:28:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2024-10-24 11:28:07,986 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 135 [2024-10-24 11:28:07,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:07,987 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2024-10-24 11:28:07,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2024-10-24 11:28:07,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:28:07,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:07,995 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:07,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:28:07,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:07,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:07,997 INFO L85 PathProgramCache]: Analyzing trace with hash 833082901, now seen corresponding path program 1 times [2024-10-24 11:28:07,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:07,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953054654] [2024-10-24 11:28:07,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:07,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:08,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:08,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953054654] [2024-10-24 11:28:08,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953054654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:08,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:08,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 11:28:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253921003] [2024-10-24 11:28:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:08,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 11:28:08,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:08,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 11:28:08,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:28:08,692 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:08,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:08,769 INFO L93 Difference]: Finished difference Result 205 states and 299 transitions. [2024-10-24 11:28:08,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 11:28:08,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2024-10-24 11:28:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:08,772 INFO L225 Difference]: With dead ends: 205 [2024-10-24 11:28:08,772 INFO L226 Difference]: Without dead ends: 103 [2024-10-24 11:28:08,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:28:08,774 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:08,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:28:08,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-24 11:28:08,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-24 11:28:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:28:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-10-24 11:28:08,792 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 135 [2024-10-24 11:28:08,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:08,795 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-10-24 11:28:08,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:08,796 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-10-24 11:28:08,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:28:08,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:08,798 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:08,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:28:08,799 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:08,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:08,799 INFO L85 PathProgramCache]: Analyzing trace with hash -446780777, now seen corresponding path program 1 times [2024-10-24 11:28:08,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:08,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407429248] [2024-10-24 11:28:08,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:08,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:10,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:10,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407429248] [2024-10-24 11:28:10,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407429248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:10,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:10,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:28:10,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174717458] [2024-10-24 11:28:10,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:10,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:28:10,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:10,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:28:10,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:28:10,844 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:11,218 INFO L93 Difference]: Finished difference Result 207 states and 300 transitions. [2024-10-24 11:28:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:28:11,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2024-10-24 11:28:11,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:11,223 INFO L225 Difference]: With dead ends: 207 [2024-10-24 11:28:11,225 INFO L226 Difference]: Without dead ends: 105 [2024-10-24 11:28:11,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:28:11,230 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 274 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:11,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 413 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:28:11,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-24 11:28:11,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-10-24 11:28:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 85 states have internal predecessors, (115), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:28:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2024-10-24 11:28:11,260 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 135 [2024-10-24 11:28:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:11,261 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2024-10-24 11:28:11,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2024-10-24 11:28:11,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:28:11,263 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:11,263 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:11,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:28:11,267 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:11,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:11,268 INFO L85 PathProgramCache]: Analyzing trace with hash -839807787, now seen corresponding path program 1 times [2024-10-24 11:28:11,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:11,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181660304] [2024-10-24 11:28:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:11,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:13,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:13,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181660304] [2024-10-24 11:28:13,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181660304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:13,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:13,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:28:13,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277603893] [2024-10-24 11:28:13,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:13,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:28:13,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:13,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:28:13,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:28:13,496 INFO L87 Difference]: Start difference. First operand 105 states and 151 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:28:14,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:14,381 INFO L93 Difference]: Finished difference Result 343 states and 494 transitions. [2024-10-24 11:28:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:28:14,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2024-10-24 11:28:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:14,384 INFO L225 Difference]: With dead ends: 343 [2024-10-24 11:28:14,384 INFO L226 Difference]: Without dead ends: 239 [2024-10-24 11:28:14,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:28:14,386 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 280 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:14,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1002 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:28:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-10-24 11:28:14,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 233. [2024-10-24 11:28:14,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 185 states have (on average 1.345945945945946) internal successors, (249), 186 states have internal predecessors, (249), 44 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:28:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 337 transitions. [2024-10-24 11:28:14,432 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 337 transitions. Word has length 135 [2024-10-24 11:28:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:14,433 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 337 transitions. [2024-10-24 11:28:14,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:28:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 337 transitions. [2024-10-24 11:28:14,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 11:28:14,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:14,435 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:14,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:28:14,435 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:14,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:14,436 INFO L85 PathProgramCache]: Analyzing trace with hash -539074770, now seen corresponding path program 1 times [2024-10-24 11:28:14,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:14,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104647441] [2024-10-24 11:28:14,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:14,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:16,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:16,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104647441] [2024-10-24 11:28:16,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104647441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:16,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:16,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:28:16,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900749825] [2024-10-24 11:28:16,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:16,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:28:16,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:16,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:28:16,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:28:16,939 INFO L87 Difference]: Start difference. First operand 233 states and 337 transitions. Second operand has 15 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-10-24 11:28:21,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 11:28:22,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:22,711 INFO L93 Difference]: Finished difference Result 457 states and 655 transitions. [2024-10-24 11:28:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:28:22,712 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 137 [2024-10-24 11:28:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:22,715 INFO L225 Difference]: With dead ends: 457 [2024-10-24 11:28:22,715 INFO L226 Difference]: Without dead ends: 353 [2024-10-24 11:28:22,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2024-10-24 11:28:22,720 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 313 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 72 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:22,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1268 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 697 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-10-24 11:28:22,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-10-24 11:28:22,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2024-10-24 11:28:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 274 states have (on average 1.332116788321168) internal successors, (365), 276 states have internal predecessors, (365), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 501 transitions. [2024-10-24 11:28:22,818 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 501 transitions. Word has length 137 [2024-10-24 11:28:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:22,819 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 501 transitions. [2024-10-24 11:28:22,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-10-24 11:28:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 501 transitions. [2024-10-24 11:28:22,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:28:22,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:22,822 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:22,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:28:22,822 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:22,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:22,823 INFO L85 PathProgramCache]: Analyzing trace with hash 777830637, now seen corresponding path program 1 times [2024-10-24 11:28:22,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:22,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257874370] [2024-10-24 11:28:22,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:22,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:23,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:23,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257874370] [2024-10-24 11:28:23,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257874370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:23,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:23,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 11:28:23,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496299858] [2024-10-24 11:28:23,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:23,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 11:28:23,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:23,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 11:28:23,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:28:23,113 INFO L87 Difference]: Start difference. First operand 349 states and 501 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:23,253 INFO L93 Difference]: Finished difference Result 651 states and 934 transitions. [2024-10-24 11:28:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 11:28:23,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 11:28:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:23,258 INFO L225 Difference]: With dead ends: 651 [2024-10-24 11:28:23,259 INFO L226 Difference]: Without dead ends: 349 [2024-10-24 11:28:23,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:28:23,262 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:23,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:28:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-10-24 11:28:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-10-24 11:28:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 274 states have (on average 1.3211678832116789) internal successors, (362), 276 states have internal predecessors, (362), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 498 transitions. [2024-10-24 11:28:23,374 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 498 transitions. Word has length 140 [2024-10-24 11:28:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:23,377 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 498 transitions. [2024-10-24 11:28:23,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 498 transitions. [2024-10-24 11:28:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:28:23,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:23,379 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:23,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 11:28:23,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:23,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1035996075, now seen corresponding path program 1 times [2024-10-24 11:28:23,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:23,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104406832] [2024-10-24 11:28:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:23,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:24,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:24,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104406832] [2024-10-24 11:28:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104406832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:24,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:24,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:28:24,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035343449] [2024-10-24 11:28:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:24,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:28:24,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:24,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:28:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:28:24,113 INFO L87 Difference]: Start difference. First operand 349 states and 498 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:24,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:24,497 INFO L93 Difference]: Finished difference Result 763 states and 1080 transitions. [2024-10-24 11:28:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:28:24,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 11:28:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:24,501 INFO L225 Difference]: With dead ends: 763 [2024-10-24 11:28:24,502 INFO L226 Difference]: Without dead ends: 461 [2024-10-24 11:28:24,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:28:24,505 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 172 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:24,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 624 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:28:24,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-10-24 11:28:24,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 384. [2024-10-24 11:28:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 309 states have (on average 1.3106796116504855) internal successors, (405), 311 states have internal predecessors, (405), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:24,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 541 transitions. [2024-10-24 11:28:24,590 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 541 transitions. Word has length 140 [2024-10-24 11:28:24,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:24,591 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 541 transitions. [2024-10-24 11:28:24,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:24,591 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 541 transitions. [2024-10-24 11:28:24,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:28:24,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:24,594 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:24,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 11:28:24,594 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:24,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:24,595 INFO L85 PathProgramCache]: Analyzing trace with hash -282543593, now seen corresponding path program 1 times [2024-10-24 11:28:24,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:24,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192863879] [2024-10-24 11:28:24,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:24,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:25,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:25,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192863879] [2024-10-24 11:28:25,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192863879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:25,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:25,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:28:25,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152408038] [2024-10-24 11:28:25,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:25,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:28:25,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:25,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:28:25,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:28:25,404 INFO L87 Difference]: Start difference. First operand 384 states and 541 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:26,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:26,115 INFO L93 Difference]: Finished difference Result 801 states and 1122 transitions. [2024-10-24 11:28:26,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:28:26,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 141 [2024-10-24 11:28:26,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:26,119 INFO L225 Difference]: With dead ends: 801 [2024-10-24 11:28:26,119 INFO L226 Difference]: Without dead ends: 464 [2024-10-24 11:28:26,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:28:26,121 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 337 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:26,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 814 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:28:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-10-24 11:28:26,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 402. [2024-10-24 11:28:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 326 states have (on average 1.312883435582822) internal successors, (428), 328 states have internal predecessors, (428), 68 states have call successors, (68), 7 states have call predecessors, (68), 7 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 564 transitions. [2024-10-24 11:28:26,195 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 564 transitions. Word has length 141 [2024-10-24 11:28:26,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:26,196 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 564 transitions. [2024-10-24 11:28:26,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:26,197 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 564 transitions. [2024-10-24 11:28:26,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:28:26,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:26,198 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:26,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 11:28:26,198 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:26,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:26,199 INFO L85 PathProgramCache]: Analyzing trace with hash -675570603, now seen corresponding path program 1 times [2024-10-24 11:28:26,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:26,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296220328] [2024-10-24 11:28:26,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:26,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:26,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:26,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296220328] [2024-10-24 11:28:26,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296220328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:26,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:26,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:28:26,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42367505] [2024-10-24 11:28:26,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:26,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:28:26,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:28:26,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:28:26,759 INFO L87 Difference]: Start difference. First operand 402 states and 564 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:27,287 INFO L93 Difference]: Finished difference Result 991 states and 1393 transitions. [2024-10-24 11:28:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:28:27,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-10-24 11:28:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:27,292 INFO L225 Difference]: With dead ends: 991 [2024-10-24 11:28:27,293 INFO L226 Difference]: Without dead ends: 640 [2024-10-24 11:28:27,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:28:27,295 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 98 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:27,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 781 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:28:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-10-24 11:28:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 514. [2024-10-24 11:28:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 429 states have (on average 1.324009324009324) internal successors, (568), 432 states have internal predecessors, (568), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 73 states have call predecessors, (76), 76 states have call successors, (76) [2024-10-24 11:28:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 720 transitions. [2024-10-24 11:28:27,388 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 720 transitions. Word has length 141 [2024-10-24 11:28:27,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:27,389 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 720 transitions. [2024-10-24 11:28:27,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 720 transitions. [2024-10-24 11:28:27,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:28:27,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:27,391 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:27,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 11:28:27,391 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:27,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:27,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1971487335, now seen corresponding path program 1 times [2024-10-24 11:28:27,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:27,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283733551] [2024-10-24 11:28:27,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:27,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:27,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:27,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283733551] [2024-10-24 11:28:27,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283733551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:27,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:27,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:28:27,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153281249] [2024-10-24 11:28:27,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:27,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:28:27,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:27,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:28:27,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:28:27,816 INFO L87 Difference]: Start difference. First operand 514 states and 720 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:28,134 INFO L93 Difference]: Finished difference Result 1103 states and 1542 transitions. [2024-10-24 11:28:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:28:28,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-10-24 11:28:28,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:28,142 INFO L225 Difference]: With dead ends: 1103 [2024-10-24 11:28:28,142 INFO L226 Difference]: Without dead ends: 640 [2024-10-24 11:28:28,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:28:28,144 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 93 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:28,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 749 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:28:28,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-10-24 11:28:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 459. [2024-10-24 11:28:28,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 382 states have (on average 1.301047120418848) internal successors, (497), 384 states have internal predecessors, (497), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 633 transitions. [2024-10-24 11:28:28,259 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 633 transitions. Word has length 141 [2024-10-24 11:28:28,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:28,260 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 633 transitions. [2024-10-24 11:28:28,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 633 transitions. [2024-10-24 11:28:28,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:28:28,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:28,262 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:28,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 11:28:28,262 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:28,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:28,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1930452951, now seen corresponding path program 1 times [2024-10-24 11:28:28,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:28,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424319335] [2024-10-24 11:28:28,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:28,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:29,166 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:29,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:29,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424319335] [2024-10-24 11:28:29,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424319335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:29,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:29,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:28:29,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926262026] [2024-10-24 11:28:29,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:29,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:28:29,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:28:29,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:28:29,169 INFO L87 Difference]: Start difference. First operand 459 states and 633 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:30,175 INFO L93 Difference]: Finished difference Result 928 states and 1277 transitions. [2024-10-24 11:28:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:28:30,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 141 [2024-10-24 11:28:30,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:30,180 INFO L225 Difference]: With dead ends: 928 [2024-10-24 11:28:30,180 INFO L226 Difference]: Without dead ends: 520 [2024-10-24 11:28:30,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:28:30,182 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 193 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:30,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1162 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 11:28:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-10-24 11:28:30,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 458. [2024-10-24 11:28:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 381 states have (on average 1.2992125984251968) internal successors, (495), 383 states have internal predecessors, (495), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 631 transitions. [2024-10-24 11:28:30,263 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 631 transitions. Word has length 141 [2024-10-24 11:28:30,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:30,263 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 631 transitions. [2024-10-24 11:28:30,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:28:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 631 transitions. [2024-10-24 11:28:30,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 11:28:30,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:30,265 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:30,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 11:28:30,265 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:30,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:30,266 INFO L85 PathProgramCache]: Analyzing trace with hash -421090215, now seen corresponding path program 1 times [2024-10-24 11:28:30,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:30,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325575770] [2024-10-24 11:28:30,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:30,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:30,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:30,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325575770] [2024-10-24 11:28:30,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325575770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:30,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:30,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:28:30,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88314975] [2024-10-24 11:28:30,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:30,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:28:30,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:30,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:28:30,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:28:30,491 INFO L87 Difference]: Start difference. First operand 458 states and 631 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:30,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:30,595 INFO L93 Difference]: Finished difference Result 874 states and 1203 transitions. [2024-10-24 11:28:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:28:30,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-24 11:28:30,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:30,599 INFO L225 Difference]: With dead ends: 874 [2024-10-24 11:28:30,599 INFO L226 Difference]: Without dead ends: 467 [2024-10-24 11:28:30,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:28:30,602 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:30,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 554 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:28:30,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-10-24 11:28:30,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-10-24 11:28:30,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 390 states have (on average 1.2923076923076924) internal successors, (504), 392 states have internal predecessors, (504), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 640 transitions. [2024-10-24 11:28:30,677 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 640 transitions. Word has length 142 [2024-10-24 11:28:30,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:30,678 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 640 transitions. [2024-10-24 11:28:30,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 640 transitions. [2024-10-24 11:28:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 11:28:30,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:30,681 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:30,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 11:28:30,681 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:30,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash 721525071, now seen corresponding path program 1 times [2024-10-24 11:28:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:30,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903108188] [2024-10-24 11:28:30,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:30,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:30,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:30,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903108188] [2024-10-24 11:28:30,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903108188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:30,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:30,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:28:30,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529546682] [2024-10-24 11:28:30,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:30,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:28:30,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:30,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:28:30,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:28:30,940 INFO L87 Difference]: Start difference. First operand 467 states and 640 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:31,068 INFO L93 Difference]: Finished difference Result 895 states and 1224 transitions. [2024-10-24 11:28:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:28:31,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-24 11:28:31,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:31,072 INFO L225 Difference]: With dead ends: 895 [2024-10-24 11:28:31,072 INFO L226 Difference]: Without dead ends: 479 [2024-10-24 11:28:31,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:28:31,075 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:31,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 697 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:28:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-10-24 11:28:31,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 470. [2024-10-24 11:28:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 393 states have (on average 1.2900763358778626) internal successors, (507), 395 states have internal predecessors, (507), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 643 transitions. [2024-10-24 11:28:31,151 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 643 transitions. Word has length 142 [2024-10-24 11:28:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:31,152 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 643 transitions. [2024-10-24 11:28:31,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 643 transitions. [2024-10-24 11:28:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:28:31,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:31,154 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:31,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 11:28:31,154 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:31,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:31,154 INFO L85 PathProgramCache]: Analyzing trace with hash 549103024, now seen corresponding path program 1 times [2024-10-24 11:28:31,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:31,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703168214] [2024-10-24 11:28:31,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:31,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:32,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:32,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703168214] [2024-10-24 11:28:32,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703168214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:32,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:32,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:28:32,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035561990] [2024-10-24 11:28:32,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:32,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:28:32,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:32,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:28:32,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:28:32,056 INFO L87 Difference]: Start difference. First operand 470 states and 643 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:33,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:33,447 INFO L93 Difference]: Finished difference Result 952 states and 1297 transitions. [2024-10-24 11:28:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 11:28:33,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-10-24 11:28:33,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:33,452 INFO L225 Difference]: With dead ends: 952 [2024-10-24 11:28:33,452 INFO L226 Difference]: Without dead ends: 670 [2024-10-24 11:28:33,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:28:33,453 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 295 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:33,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1860 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 11:28:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-10-24 11:28:33,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 470. [2024-10-24 11:28:33,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 393 states have (on average 1.2900763358778626) internal successors, (507), 395 states have internal predecessors, (507), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 643 transitions. [2024-10-24 11:28:33,533 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 643 transitions. Word has length 143 [2024-10-24 11:28:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:33,534 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 643 transitions. [2024-10-24 11:28:33,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 643 transitions. [2024-10-24 11:28:33,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:28:33,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:33,536 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:33,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 11:28:33,537 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:33,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1532867728, now seen corresponding path program 1 times [2024-10-24 11:28:33,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:33,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192438680] [2024-10-24 11:28:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:34,429 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:34,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:34,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192438680] [2024-10-24 11:28:34,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192438680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:34,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:34,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:28:34,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570424598] [2024-10-24 11:28:34,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:34,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:28:34,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:34,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:28:34,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:28:34,432 INFO L87 Difference]: Start difference. First operand 470 states and 643 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:35,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:35,195 INFO L93 Difference]: Finished difference Result 941 states and 1286 transitions. [2024-10-24 11:28:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:28:35,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-10-24 11:28:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:35,200 INFO L225 Difference]: With dead ends: 941 [2024-10-24 11:28:35,200 INFO L226 Difference]: Without dead ends: 659 [2024-10-24 11:28:35,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:28:35,201 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 93 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:35,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1052 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:28:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-10-24 11:28:35,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 468. [2024-10-24 11:28:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 391 states have (on average 1.2864450127877238) internal successors, (503), 393 states have internal predecessors, (503), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 639 transitions. [2024-10-24 11:28:35,288 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 639 transitions. Word has length 143 [2024-10-24 11:28:35,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:35,288 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 639 transitions. [2024-10-24 11:28:35,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 639 transitions. [2024-10-24 11:28:35,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 11:28:35,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:35,290 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:35,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 11:28:35,291 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:35,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1333738674, now seen corresponding path program 1 times [2024-10-24 11:28:35,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:35,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021958865] [2024-10-24 11:28:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:35,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:36,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:36,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021958865] [2024-10-24 11:28:36,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021958865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:36,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:36,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:28:36,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900201534] [2024-10-24 11:28:36,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:36,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:28:36,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:36,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:28:36,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:28:36,623 INFO L87 Difference]: Start difference. First operand 468 states and 639 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:37,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:37,438 INFO L93 Difference]: Finished difference Result 881 states and 1202 transitions. [2024-10-24 11:28:37,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:28:37,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-10-24 11:28:37,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:37,442 INFO L225 Difference]: With dead ends: 881 [2024-10-24 11:28:37,442 INFO L226 Difference]: Without dead ends: 464 [2024-10-24 11:28:37,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:28:37,444 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 209 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:37,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 735 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:28:37,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-10-24 11:28:37,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2024-10-24 11:28:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 385 states have (on average 1.2857142857142858) internal successors, (495), 387 states have internal predecessors, (495), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 631 transitions. [2024-10-24 11:28:37,530 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 631 transitions. Word has length 144 [2024-10-24 11:28:37,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:37,531 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 631 transitions. [2024-10-24 11:28:37,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 631 transitions. [2024-10-24 11:28:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 11:28:37,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:37,533 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:37,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 11:28:37,533 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:37,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:37,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1465541730, now seen corresponding path program 1 times [2024-10-24 11:28:37,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:37,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209560088] [2024-10-24 11:28:37,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:37,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:39,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:39,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:39,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:39,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:39,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:39,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:40,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:40,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209560088] [2024-10-24 11:28:40,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209560088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:40,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:40,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 11:28:40,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651785858] [2024-10-24 11:28:40,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:40,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 11:28:40,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:40,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 11:28:40,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:28:40,061 INFO L87 Difference]: Start difference. First operand 462 states and 631 transitions. Second operand has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-10-24 11:28:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:41,344 INFO L93 Difference]: Finished difference Result 815 states and 1093 transitions. [2024-10-24 11:28:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:28:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 144 [2024-10-24 11:28:41,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:41,349 INFO L225 Difference]: With dead ends: 815 [2024-10-24 11:28:41,349 INFO L226 Difference]: Without dead ends: 813 [2024-10-24 11:28:41,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-10-24 11:28:41,351 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 466 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:41,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 754 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:28:41,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-10-24 11:28:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 686. [2024-10-24 11:28:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 609 states have (on average 1.2988505747126438) internal successors, (791), 611 states have internal predecessors, (791), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:41,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 927 transitions. [2024-10-24 11:28:41,472 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 927 transitions. Word has length 144 [2024-10-24 11:28:41,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:41,473 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 927 transitions. [2024-10-24 11:28:41,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-10-24 11:28:41,473 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 927 transitions. [2024-10-24 11:28:41,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 11:28:41,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:41,475 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:41,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 11:28:41,475 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:41,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash 704533060, now seen corresponding path program 1 times [2024-10-24 11:28:41,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422740155] [2024-10-24 11:28:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:28:41,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:41,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422740155] [2024-10-24 11:28:41,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422740155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:28:41,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:28:41,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:28:41,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815313620] [2024-10-24 11:28:41,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:28:41,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:28:41,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:41,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:28:41,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:28:41,765 INFO L87 Difference]: Start difference. First operand 686 states and 927 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:41,940 INFO L93 Difference]: Finished difference Result 1369 states and 1837 transitions. [2024-10-24 11:28:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:28:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-10-24 11:28:41,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:41,944 INFO L225 Difference]: With dead ends: 1369 [2024-10-24 11:28:41,944 INFO L226 Difference]: Without dead ends: 734 [2024-10-24 11:28:41,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:28:41,946 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:41,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:28:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-10-24 11:28:42,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 692. [2024-10-24 11:28:42,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 615 states have (on average 1.2959349593495935) internal successors, (797), 617 states have internal predecessors, (797), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 933 transitions. [2024-10-24 11:28:42,054 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 933 transitions. Word has length 144 [2024-10-24 11:28:42,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:42,054 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 933 transitions. [2024-10-24 11:28:42,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:28:42,055 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 933 transitions. [2024-10-24 11:28:42,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 11:28:42,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:42,056 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:42,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 11:28:42,057 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:42,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1908510180, now seen corresponding path program 1 times [2024-10-24 11:28:42,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:42,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192546942] [2024-10-24 11:28:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 36 proven. 15 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-10-24 11:28:43,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:43,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192546942] [2024-10-24 11:28:43,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192546942] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:28:43,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497127246] [2024-10-24 11:28:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:43,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:28:43,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:28:43,546 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) [2024-10-24 11:28:43,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:28:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:43,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-10-24 11:28:43,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:28:44,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-24 11:28:45,097 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 [2024-10-24 11:28:45,619 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 34 treesize of output 18 [2024-10-24 11:28:46,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-10-24 11:28:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:28:46,056 INFO L349 Elim1Store]: treesize reduction 35, result has 30.0 percent of original size [2024-10-24 11:28:46,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 46 [2024-10-24 11:28:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 88 proven. 224 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-24 11:28:46,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:28:46,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2024-10-24 11:28:50,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497127246] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:28:50,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:28:50,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 27 [2024-10-24 11:28:50,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961121705] [2024-10-24 11:28:50,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 11:28:50,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-24 11:28:50,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:50,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-24 11:28:50,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=867, Unknown=1, NotChecked=0, Total=992 [2024-10-24 11:28:50,902 INFO L87 Difference]: Start difference. First operand 692 states and 933 transitions. Second operand has 27 states, 24 states have (on average 4.5) internal successors, (108), 25 states have internal predecessors, (108), 9 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 8 states have call predecessors, (36), 9 states have call successors, (36) [2024-10-24 11:28:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:28:53,666 INFO L93 Difference]: Finished difference Result 1339 states and 1782 transitions. [2024-10-24 11:28:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-24 11:28:53,667 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 4.5) internal successors, (108), 25 states have internal predecessors, (108), 9 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 8 states have call predecessors, (36), 9 states have call successors, (36) Word has length 146 [2024-10-24 11:28:53,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:28:53,670 INFO L225 Difference]: With dead ends: 1339 [2024-10-24 11:28:53,671 INFO L226 Difference]: Without dead ends: 698 [2024-10-24 11:28:53,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=502, Invalid=2689, Unknown=1, NotChecked=0, Total=3192 [2024-10-24 11:28:53,673 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 913 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:28:53,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 1248 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 11:28:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-10-24 11:28:53,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 678. [2024-10-24 11:28:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 593 states have (on average 1.2799325463743676) internal successors, (759), 595 states have internal predecessors, (759), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:28:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 895 transitions. [2024-10-24 11:28:53,797 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 895 transitions. Word has length 146 [2024-10-24 11:28:53,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:28:53,798 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 895 transitions. [2024-10-24 11:28:53,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 4.5) internal successors, (108), 25 states have internal predecessors, (108), 9 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 8 states have call predecessors, (36), 9 states have call successors, (36) [2024-10-24 11:28:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 895 transitions. [2024-10-24 11:28:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 11:28:53,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:28:53,800 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:28:53,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 11:28:54,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:28:54,005 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:28:54,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:28:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash 753428320, now seen corresponding path program 1 times [2024-10-24 11:28:54,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:28:54,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846576153] [2024-10-24 11:28:54,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:54,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:28:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:28:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:28:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:28:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:28:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:28:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:28:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:28:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:28:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:28:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:28:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:28:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:28:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:28:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:28:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:28:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:28:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:28:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:28:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-10-24 11:28:55,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:28:55,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846576153] [2024-10-24 11:28:55,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846576153] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:28:55,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196251260] [2024-10-24 11:28:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:28:55,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:28:55,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:28:55,170 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) [2024-10-24 11:28:55,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 11:28:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:28:55,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-24 11:28:55,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:28:56,872 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 [2024-10-24 11:28:57,084 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 [2024-10-24 11:28:57,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-10-24 11:28:57,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:28:57,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:28:57,619 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 36 treesize of output 33 [2024-10-24 11:28:57,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:28:57,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:28:57,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 11:28:57,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 25 [2024-10-24 11:28:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 3 proven. 233 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-10-24 11:28:57,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:28:58,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 100 [2024-10-24 11:28:58,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196251260] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:28:58,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:28:58,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2024-10-24 11:28:58,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363561130] [2024-10-24 11:28:58,655 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 11:28:58,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 11:28:58,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:28:58,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 11:28:58,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2024-10-24 11:28:58,657 INFO L87 Difference]: Start difference. First operand 678 states and 895 transitions. Second operand has 23 states, 21 states have (on average 5.0) internal successors, (105), 21 states have internal predecessors, (105), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 7 states have call successors, (36) [2024-10-24 11:29:02,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:29:02,670 INFO L93 Difference]: Finished difference Result 1297 states and 1695 transitions. [2024-10-24 11:29:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-24 11:29:02,671 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.0) internal successors, (105), 21 states have internal predecessors, (105), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 7 states have call successors, (36) Word has length 146 [2024-10-24 11:29:02,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:29:02,674 INFO L225 Difference]: With dead ends: 1297 [2024-10-24 11:29:02,674 INFO L226 Difference]: Without dead ends: 678 [2024-10-24 11:29:02,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=557, Invalid=2865, Unknown=0, NotChecked=0, Total=3422 [2024-10-24 11:29:02,676 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 900 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 278 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:29:02,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 1511 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1397 Invalid, 1 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 11:29:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-10-24 11:29:02,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 654. [2024-10-24 11:29:02,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 562 states have (on average 1.2669039145907472) internal successors, (712), 564 states have internal predecessors, (712), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:29:02,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 848 transitions. [2024-10-24 11:29:02,792 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 848 transitions. Word has length 146 [2024-10-24 11:29:02,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:29:02,792 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 848 transitions. [2024-10-24 11:29:02,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.0) internal successors, (105), 21 states have internal predecessors, (105), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 7 states have call successors, (36) [2024-10-24 11:29:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 848 transitions. [2024-10-24 11:29:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 11:29:02,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:29:02,794 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:29:02,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 11:29:02,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-10-24 11:29:02,999 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:29:02,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:29:02,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1638793950, now seen corresponding path program 1 times [2024-10-24 11:29:02,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:29:02,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21544867] [2024-10-24 11:29:02,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:29:02,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:29:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:29:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:29:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:29:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:29:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:29:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:29:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:29:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:29:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:29:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:29:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:29:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:29:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:29:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:29:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:29:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:29:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:29:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:29:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:04,863 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 78 proven. 18 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-10-24 11:29:04,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:29:04,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21544867] [2024-10-24 11:29:04,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21544867] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:29:04,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604819850] [2024-10-24 11:29:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:29:04,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:29:04,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:29:04,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:29:04,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 11:29:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:29:05,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-24 11:29:05,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:29:05,217 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 23 treesize of output 11 [2024-10-24 11:29:05,617 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 32 treesize of output 23 [2024-10-24 11:29:05,910 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 32 treesize of output 23 [2024-10-24 11:29:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:29:07,703 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-24 11:29:07,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-24 11:29:07,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:29:07,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:29:07,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:29:07,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:29:07,819 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-24 11:29:07,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 37 [2024-10-24 11:29:08,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:29:08,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 11:29:08,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2024-10-24 11:29:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 13 proven. 230 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-10-24 11:29:08,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:29:08,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604819850] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:29:08,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:29:08,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10] total 26 [2024-10-24 11:29:08,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206227196] [2024-10-24 11:29:08,343 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 11:29:08,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 11:29:08,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:29:08,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 11:29:08,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2024-10-24 11:29:08,345 INFO L87 Difference]: Start difference. First operand 654 states and 848 transitions. Second operand has 26 states, 22 states have (on average 5.5) internal successors, (121), 24 states have internal predecessors, (121), 10 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 8 states have call predecessors, (36), 10 states have call successors, (36)