./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.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 2be5ecf5348458671ab0cc252df5fcce5a265155e50eac356b5f3e450b866c41 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:56:47,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:56:47,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:56:47,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:56:47,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:56:47,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:56:47,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:56:47,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:56:47,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:56:47,168 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:56:47,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:56:47,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:56:47,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:56:47,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:56:47,171 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:56:47,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:56:47,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:56:47,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:56:47,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:56:47,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:56:47,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:56:47,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:56:47,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:56:47,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:56:47,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:56:47,176 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:56:47,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:56:47,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:56:47,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:56:47,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:56:47,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:56:47,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:56:47,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:56:47,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:56:47,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:56:47,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:56:47,178 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:56:47,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:56:47,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:56:47,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:56:47,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:56:47,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:56:47,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2be5ecf5348458671ab0cc252df5fcce5a265155e50eac356b5f3e450b866c41 [2024-11-22 12:56:47,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:56:47,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:56:47,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:56:47,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:56:47,455 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:56:47,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i [2024-11-22 12:56:48,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:56:48,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:56:48,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i [2024-11-22 12:56:48,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffedf9bd1/87cb7836a4da4e07aa8a21e2d8a1484d/FLAG0b3688526 [2024-11-22 12:56:48,925 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffedf9bd1/87cb7836a4da4e07aa8a21e2d8a1484d [2024-11-22 12:56:48,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:56:48,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:56:48,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:56:48,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:56:48,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:56:48,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:48" (1/1) ... [2024-11-22 12:56:48,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d6bfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:48, skipping insertion in model container [2024-11-22 12:56:48,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:48" (1/1) ... [2024-11-22 12:56:48,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:56:49,084 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i[915,928] [2024-11-22 12:56:49,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:56:49,160 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:56:49,172 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i[915,928] [2024-11-22 12:56:49,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:56:49,233 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:56:49,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49 WrapperNode [2024-11-22 12:56:49,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:56:49,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:56:49,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:56:49,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:56:49,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,286 INFO L138 Inliner]: procedures = 26, calls = 168, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 453 [2024-11-22 12:56:49,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:56:49,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:56:49,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:56:49,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:56:49,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,333 INFO L175 MemorySlicer]: Split 122 memory accesses to 16 slices as follows [2, 3, 6, 6, 29, 6, 6, 14, 8, 7, 9, 8, 8, 3, 3, 4]. 24 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-22 12:56:49,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,344 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:56:49,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:56:49,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:56:49,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:56:49,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (1/1) ... [2024-11-22 12:56:49,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:56:49,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:49,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:56:49,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:56:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:56:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:56:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:56:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:56:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:56:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:56:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:56:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 12:56:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 12:56:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 12:56:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 12:56:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:56:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 12:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 12:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 12:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 12:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-22 12:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-22 12:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-22 12:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:56:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 12:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 12:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 12:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 12:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 12:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 12:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 12:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 12:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:56:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:56:49,615 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:56:49,619 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:56:50,067 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-22 12:56:50,067 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:56:50,081 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:56:50,081 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:56:50,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:50 BoogieIcfgContainer [2024-11-22 12:56:50,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:56:50,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:56:50,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:56:50,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:56:50,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:48" (1/3) ... [2024-11-22 12:56:50,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5935c75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:50, skipping insertion in model container [2024-11-22 12:56:50,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:49" (2/3) ... [2024-11-22 12:56:50,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5935c75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:50, skipping insertion in model container [2024-11-22 12:56:50,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:50" (3/3) ... [2024-11-22 12:56:50,089 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-5.i [2024-11-22 12:56:50,102 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:56:50,103 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:56:50,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:56:50,164 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;@430348c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:56:50,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:56:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 74 states have internal predecessors, (97), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:56:50,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:50,179 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:50,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:50,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash 779273670, now seen corresponding path program 1 times [2024-11-22 12:56:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:50,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075529800] [2024-11-22 12:56:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-22 12:56:50,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:50,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075529800] [2024-11-22 12:56:50,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075529800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:50,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789124403] [2024-11-22 12:56:50,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:50,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:50,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:50,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:50,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:56:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:50,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:56:50,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-22 12:56:50,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:50,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789124403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:50,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:50,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:56:50,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970252462] [2024-11-22 12:56:50,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:50,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:56:50,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:50,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:56:50,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:56:50,854 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 74 states have internal predecessors, (97), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:56:50,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:50,884 INFO L93 Difference]: Finished difference Result 185 states and 288 transitions. [2024-11-22 12:56:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:56:50,886 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-11-22 12:56:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:50,892 INFO L225 Difference]: With dead ends: 185 [2024-11-22 12:56:50,893 INFO L226 Difference]: Without dead ends: 92 [2024-11-22 12:56:50,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:56:50,899 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:50,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-22 12:56:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-22 12:56:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2024-11-22 12:56:50,932 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 148 [2024-11-22 12:56:50,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:50,933 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2024-11-22 12:56:50,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:56:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2024-11-22 12:56:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:56:50,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:50,936 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:50,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:56:51,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:56:51,138 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:51,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:51,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1856104722, now seen corresponding path program 1 times [2024-11-22 12:56:51,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:51,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095165028] [2024-11-22 12:56:51,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:51,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:56:51,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095165028] [2024-11-22 12:56:51,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095165028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78912922] [2024-11-22 12:56:51,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:51,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:51,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:51,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:51,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:56:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:51,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:56:51,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:51,700 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:51,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:51,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78912922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:51,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:51,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 12:56:51,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357686208] [2024-11-22 12:56:51,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:51,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:56:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:51,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:56:51,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:51,702 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:51,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:51,741 INFO L93 Difference]: Finished difference Result 184 states and 261 transitions. [2024-11-22 12:56:51,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:56:51,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-11-22 12:56:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:51,746 INFO L225 Difference]: With dead ends: 184 [2024-11-22 12:56:51,746 INFO L226 Difference]: Without dead ends: 95 [2024-11-22 12:56:51,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:51,748 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:51,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 370 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:51,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-22 12:56:51,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2024-11-22 12:56:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2024-11-22 12:56:51,757 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 148 [2024-11-22 12:56:51,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:51,759 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2024-11-22 12:56:51,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2024-11-22 12:56:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:56:51,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:51,761 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:51,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 12:56:51,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 12:56:51,965 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:51,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:51,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1176046352, now seen corresponding path program 1 times [2024-11-22 12:56:51,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:51,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691255691] [2024-11-22 12:56:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:51,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:56:52,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:52,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691255691] [2024-11-22 12:56:52,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691255691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:52,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841155326] [2024-11-22 12:56:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:52,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:52,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:52,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:52,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:56:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:52,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:56:52,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:52,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841155326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:52,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:52,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 12:56:52,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755102987] [2024-11-22 12:56:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:52,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:56:52,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:56:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:52,388 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:52,422 INFO L93 Difference]: Finished difference Result 188 states and 265 transitions. [2024-11-22 12:56:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:56:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-11-22 12:56:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:52,425 INFO L225 Difference]: With dead ends: 188 [2024-11-22 12:56:52,425 INFO L226 Difference]: Without dead ends: 97 [2024-11-22 12:56:52,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:52,426 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:52,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 371 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-22 12:56:52,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2024-11-22 12:56:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 74 states have internal predecessors, (94), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:52,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 134 transitions. [2024-11-22 12:56:52,436 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 134 transitions. Word has length 148 [2024-11-22 12:56:52,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:52,437 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 134 transitions. [2024-11-22 12:56:52,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:52,437 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 134 transitions. [2024-11-22 12:56:52,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:56:52,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:52,456 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:52,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 12:56:52,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:52,658 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:52,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:52,658 INFO L85 PathProgramCache]: Analyzing trace with hash 598961010, now seen corresponding path program 1 times [2024-11-22 12:56:52,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:52,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000194051] [2024-11-22 12:56:52,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:52,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:56:52,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:52,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000194051] [2024-11-22 12:56:52,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000194051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:52,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361499298] [2024-11-22 12:56:52,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:52,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:52,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:52,827 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:52,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 12:56:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:52,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:56:52,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:53,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:53,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361499298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:53,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:53,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 12:56:53,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818977032] [2024-11-22 12:56:53,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:53,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:56:53,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:53,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:56:53,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:53,009 INFO L87 Difference]: Start difference. First operand 96 states and 134 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:53,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:53,033 INFO L93 Difference]: Finished difference Result 192 states and 269 transitions. [2024-11-22 12:56:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:56:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-11-22 12:56:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:53,036 INFO L225 Difference]: With dead ends: 192 [2024-11-22 12:56:53,036 INFO L226 Difference]: Without dead ends: 99 [2024-11-22 12:56:53,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:53,040 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:53,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 373 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-22 12:56:53,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2024-11-22 12:56:53,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 76 states have (on average 1.263157894736842) internal successors, (96), 76 states have internal predecessors, (96), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:53,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 136 transitions. [2024-11-22 12:56:53,049 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 136 transitions. Word has length 148 [2024-11-22 12:56:53,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:53,050 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 136 transitions. [2024-11-22 12:56:53,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:53,052 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 136 transitions. [2024-11-22 12:56:53,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:56:53,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:53,055 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:53,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 12:56:53,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:53,256 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:53,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:53,256 INFO L85 PathProgramCache]: Analyzing trace with hash 600808052, now seen corresponding path program 1 times [2024-11-22 12:56:53,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:53,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438121264] [2024-11-22 12:56:53,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:53,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:56:53,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:53,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438121264] [2024-11-22 12:56:53,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438121264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:53,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878294693] [2024-11-22 12:56:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:53,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:53,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:53,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:53,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 12:56:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:53,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:56:53,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:53,585 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:53,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878294693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:53,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:53,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-22 12:56:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633362323] [2024-11-22 12:56:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:53,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:56:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:53,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:56:53,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:56:53,587 INFO L87 Difference]: Start difference. First operand 98 states and 136 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:53,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:53,608 INFO L93 Difference]: Finished difference Result 195 states and 272 transitions. [2024-11-22 12:56:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:56:53,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-11-22 12:56:53,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:53,610 INFO L225 Difference]: With dead ends: 195 [2024-11-22 12:56:53,612 INFO L226 Difference]: Without dead ends: 100 [2024-11-22 12:56:53,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:56:53,613 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:53,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 373 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:53,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-22 12:56:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-22 12:56:53,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 78 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2024-11-22 12:56:53,625 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 148 [2024-11-22 12:56:53,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:53,626 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2024-11-22 12:56:53,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2024-11-22 12:56:53,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:56:53,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:53,628 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:53,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 12:56:53,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:53,830 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:53,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash -104984721, now seen corresponding path program 1 times [2024-11-22 12:56:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:53,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122352456] [2024-11-22 12:56:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:54,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:54,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122352456] [2024-11-22 12:56:54,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122352456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:54,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:54,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:56:54,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567677987] [2024-11-22 12:56:54,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:54,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:56:54,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:54,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:56:54,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:56:54,062 INFO L87 Difference]: Start difference. First operand 100 states and 138 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:54,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:54,071 INFO L93 Difference]: Finished difference Result 197 states and 273 transitions. [2024-11-22 12:56:54,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:56:54,071 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-22 12:56:54,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:54,073 INFO L225 Difference]: With dead ends: 197 [2024-11-22 12:56:54,073 INFO L226 Difference]: Without dead ends: 100 [2024-11-22 12:56:54,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:56:54,074 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 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 [2024-11-22 12:56:54,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-22 12:56:54,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-22 12:56:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 78 states have internal predecessors, (97), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2024-11-22 12:56:54,080 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 150 [2024-11-22 12:56:54,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:54,080 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2024-11-22 12:56:54,081 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:54,081 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2024-11-22 12:56:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 12:56:54,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:54,082 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:54,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:56:54,082 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:54,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:54,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2110687660, now seen corresponding path program 1 times [2024-11-22 12:56:54,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:54,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058184468] [2024-11-22 12:56:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:54,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:54,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:54,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058184468] [2024-11-22 12:56:54,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058184468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:54,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:54,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:56:54,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322808249] [2024-11-22 12:56:54,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:54,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:56:54,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:54,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:56:54,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:56:54,232 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:54,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:54,262 INFO L93 Difference]: Finished difference Result 197 states and 271 transitions. [2024-11-22 12:56:54,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:56:54,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-11-22 12:56:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:54,263 INFO L225 Difference]: With dead ends: 197 [2024-11-22 12:56:54,263 INFO L226 Difference]: Without dead ends: 100 [2024-11-22 12:56:54,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:56:54,264 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:54,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:54,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-22 12:56:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-22 12:56:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 78 states have internal predecessors, (96), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:54,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2024-11-22 12:56:54,269 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 152 [2024-11-22 12:56:54,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:54,270 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2024-11-22 12:56:54,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2024-11-22 12:56:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 12:56:54,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:54,271 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:54,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:56:54,271 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:54,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:54,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1687985834, now seen corresponding path program 1 times [2024-11-22 12:56:54,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:54,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815021795] [2024-11-22 12:56:54,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:54,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:54,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815021795] [2024-11-22 12:56:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815021795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:54,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:54,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:56:54,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047745982] [2024-11-22 12:56:54,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:54,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:56:54,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:54,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:56:54,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:56:54,507 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:54,536 INFO L93 Difference]: Finished difference Result 197 states and 269 transitions. [2024-11-22 12:56:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:56:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-11-22 12:56:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:54,537 INFO L225 Difference]: With dead ends: 197 [2024-11-22 12:56:54,537 INFO L226 Difference]: Without dead ends: 100 [2024-11-22 12:56:54,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:56:54,538 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:54,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-22 12:56:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-22 12:56:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 78 states have internal predecessors, (95), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 135 transitions. [2024-11-22 12:56:54,543 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 135 transitions. Word has length 152 [2024-11-22 12:56:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:54,543 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 135 transitions. [2024-11-22 12:56:54,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 135 transitions. [2024-11-22 12:56:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 12:56:54,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:54,545 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:54,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:56:54,545 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:54,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1585913108, now seen corresponding path program 1 times [2024-11-22 12:56:54,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:54,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991487841] [2024-11-22 12:56:54,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:54,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:55,712 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:55,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:55,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991487841] [2024-11-22 12:56:55,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991487841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:55,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:55,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:56:55,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930237307] [2024-11-22 12:56:55,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:55,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:56:55,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:55,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:56:55,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:56:55,715 INFO L87 Difference]: Start difference. First operand 100 states and 135 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:56,093 INFO L93 Difference]: Finished difference Result 352 states and 481 transitions. [2024-11-22 12:56:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:56:56,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-11-22 12:56:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:56,095 INFO L225 Difference]: With dead ends: 352 [2024-11-22 12:56:56,095 INFO L226 Difference]: Without dead ends: 255 [2024-11-22 12:56:56,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:56:56,096 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 185 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:56,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1043 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:56:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-22 12:56:56,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 191. [2024-11-22 12:56:56,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 148 states have (on average 1.2094594594594594) internal successors, (179), 148 states have internal predecessors, (179), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:56:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 259 transitions. [2024-11-22 12:56:56,114 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 259 transitions. Word has length 152 [2024-11-22 12:56:56,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:56,115 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 259 transitions. [2024-11-22 12:56:56,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 259 transitions. [2024-11-22 12:56:56,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 12:56:56,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:56,116 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:56,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:56:56,120 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:56,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2129939654, now seen corresponding path program 1 times [2024-11-22 12:56:56,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:56,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371383954] [2024-11-22 12:56:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:56,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:56:56,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:56,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371383954] [2024-11-22 12:56:56,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371383954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:56,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969928768] [2024-11-22 12:56:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:56,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:56,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:56,371 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:56,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 12:56:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:56,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:56:56,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:56,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:56,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969928768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:56,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:56,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-22 12:56:56,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484862813] [2024-11-22 12:56:56,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:56,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:56:56,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:56:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:56,553 INFO L87 Difference]: Start difference. First operand 191 states and 259 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:56,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:56,576 INFO L93 Difference]: Finished difference Result 385 states and 523 transitions. [2024-11-22 12:56:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:56:56,576 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-11-22 12:56:56,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:56,577 INFO L225 Difference]: With dead ends: 385 [2024-11-22 12:56:56,577 INFO L226 Difference]: Without dead ends: 197 [2024-11-22 12:56:56,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:56,578 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:56,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:56,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-22 12:56:56,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-22 12:56:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 154 states have (on average 1.2012987012987013) internal successors, (185), 154 states have internal predecessors, (185), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:56:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 265 transitions. [2024-11-22 12:56:56,588 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 265 transitions. Word has length 152 [2024-11-22 12:56:56,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:56,588 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 265 transitions. [2024-11-22 12:56:56,588 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 265 transitions. [2024-11-22 12:56:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 12:56:56,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:56,589 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:56,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 12:56:56,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:56,791 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:56,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1295740087, now seen corresponding path program 1 times [2024-11-22 12:56:56,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:56,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208324117] [2024-11-22 12:56:56,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:56,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:56:58,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:58,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208324117] [2024-11-22 12:56:58,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208324117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:58,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384756037] [2024-11-22 12:56:58,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:58,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:58,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:58,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:58,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 12:56:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:59,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-22 12:56:59,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:59,043 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 15 treesize of output 11 [2024-11-22 12:56:59,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 12:56:59,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 12:56:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:59,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:59,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384756037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:59,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:59,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 19 [2024-11-22 12:56:59,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614239422] [2024-11-22 12:56:59,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:59,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:56:59,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:59,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:56:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-22 12:56:59,152 INFO L87 Difference]: Start difference. First operand 197 states and 265 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:59,254 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2024-11-22 12:56:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:56:59,255 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-11-22 12:56:59,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:59,256 INFO L225 Difference]: With dead ends: 363 [2024-11-22 12:56:59,256 INFO L226 Difference]: Without dead ends: 263 [2024-11-22 12:56:59,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 152 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-22 12:56:59,257 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 120 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:59,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1075 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:59,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-22 12:56:59,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 101. [2024-11-22 12:56:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 79 states have internal predecessors, (95), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:56:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 135 transitions. [2024-11-22 12:56:59,264 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 135 transitions. Word has length 153 [2024-11-22 12:56:59,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:59,265 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 135 transitions. [2024-11-22 12:56:59,265 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:59,265 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 135 transitions. [2024-11-22 12:56:59,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 12:56:59,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:59,266 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:59,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 12:56:59,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:59,471 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:59,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:59,471 INFO L85 PathProgramCache]: Analyzing trace with hash 482934228, now seen corresponding path program 1 times [2024-11-22 12:56:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:59,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640312167] [2024-11-22 12:56:59,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:59,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:59,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:59,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640312167] [2024-11-22 12:56:59,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640312167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:59,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:59,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:56:59,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693372279] [2024-11-22 12:56:59,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:59,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:56:59,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:59,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:56:59,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:56:59,634 INFO L87 Difference]: Start difference. First operand 101 states and 135 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:59,679 INFO L93 Difference]: Finished difference Result 252 states and 332 transitions. [2024-11-22 12:56:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:56:59,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-11-22 12:56:59,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:59,680 INFO L225 Difference]: With dead ends: 252 [2024-11-22 12:56:59,681 INFO L226 Difference]: Without dead ends: 154 [2024-11-22 12:56:59,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:56:59,681 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 51 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:59,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 464 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-22 12:56:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 151. [2024-11-22 12:56:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 124 states have (on average 1.2016129032258065) internal successors, (149), 125 states have internal predecessors, (149), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:56:59,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 197 transitions. [2024-11-22 12:56:59,689 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 197 transitions. Word has length 154 [2024-11-22 12:56:59,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:59,689 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 197 transitions. [2024-11-22 12:56:59,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 197 transitions. [2024-11-22 12:56:59,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 12:56:59,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:59,690 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:59,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:56:59,691 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:59,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:59,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1665361070, now seen corresponding path program 1 times [2024-11-22 12:56:59,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:59,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733506574] [2024-11-22 12:56:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:59,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:56:59,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733506574] [2024-11-22 12:56:59,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733506574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:59,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:59,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:56:59,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167665525] [2024-11-22 12:56:59,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:59,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:56:59,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:59,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:56:59,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:56:59,931 INFO L87 Difference]: Start difference. First operand 151 states and 197 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:59,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:59,971 INFO L93 Difference]: Finished difference Result 299 states and 391 transitions. [2024-11-22 12:56:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:56:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-11-22 12:56:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:59,973 INFO L225 Difference]: With dead ends: 299 [2024-11-22 12:56:59,974 INFO L226 Difference]: Without dead ends: 151 [2024-11-22 12:56:59,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:56:59,975 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:59,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:59,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-22 12:56:59,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-22 12:56:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 124 states have (on average 1.185483870967742) internal successors, (147), 125 states have internal predecessors, (147), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:56:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 195 transitions. [2024-11-22 12:56:59,982 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 195 transitions. Word has length 154 [2024-11-22 12:56:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:59,982 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 195 transitions. [2024-11-22 12:56:59,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:56:59,982 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 195 transitions. [2024-11-22 12:56:59,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 12:56:59,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:59,984 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:59,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:56:59,984 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:59,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:59,984 INFO L85 PathProgramCache]: Analyzing trace with hash 119101899, now seen corresponding path program 1 times [2024-11-22 12:56:59,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:59,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547419470] [2024-11-22 12:56:59,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:59,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:00,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:00,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547419470] [2024-11-22 12:57:00,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547419470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:00,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:00,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:57:00,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655650825] [2024-11-22 12:57:00,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:00,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:57:00,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:00,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:57:00,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:57:00,630 INFO L87 Difference]: Start difference. First operand 151 states and 195 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:00,909 INFO L93 Difference]: Finished difference Result 185 states and 236 transitions. [2024-11-22 12:57:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:57:00,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 156 [2024-11-22 12:57:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:00,911 INFO L225 Difference]: With dead ends: 185 [2024-11-22 12:57:00,911 INFO L226 Difference]: Without dead ends: 183 [2024-11-22 12:57:00,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:57:00,913 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 144 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:00,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 715 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:57:00,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-22 12:57:00,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2024-11-22 12:57:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.1586206896551725) internal successors, (168), 147 states have internal predecessors, (168), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-22 12:57:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 232 transitions. [2024-11-22 12:57:00,925 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 232 transitions. Word has length 156 [2024-11-22 12:57:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:00,926 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 232 transitions. [2024-11-22 12:57:00,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 232 transitions. [2024-11-22 12:57:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 12:57:00,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:00,928 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:00,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:57:00,928 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:00,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:00,929 INFO L85 PathProgramCache]: Analyzing trace with hash 120948941, now seen corresponding path program 1 times [2024-11-22 12:57:00,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:00,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880285327] [2024-11-22 12:57:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:00,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:01,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:01,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880285327] [2024-11-22 12:57:01,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880285327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:01,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:01,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:57:01,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350833650] [2024-11-22 12:57:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:01,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:57:01,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:01,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:57:01,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:57:01,330 INFO L87 Difference]: Start difference. First operand 182 states and 232 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:01,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:01,566 INFO L93 Difference]: Finished difference Result 482 states and 618 transitions. [2024-11-22 12:57:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:57:01,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-22 12:57:01,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:01,571 INFO L225 Difference]: With dead ends: 482 [2024-11-22 12:57:01,575 INFO L226 Difference]: Without dead ends: 324 [2024-11-22 12:57:01,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:57:01,577 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 125 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:01,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 717 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:57:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-22 12:57:01,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 306. [2024-11-22 12:57:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 233 states have (on average 1.1330472103004292) internal successors, (264), 235 states have internal predecessors, (264), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-22 12:57:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 392 transitions. [2024-11-22 12:57:01,603 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 392 transitions. Word has length 156 [2024-11-22 12:57:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:01,603 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 392 transitions. [2024-11-22 12:57:01,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 392 transitions. [2024-11-22 12:57:01,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 12:57:01,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:01,605 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:01,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:57:01,605 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:01,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:01,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1895956303, now seen corresponding path program 1 times [2024-11-22 12:57:01,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:01,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628572628] [2024-11-22 12:57:01,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:01,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:01,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:01,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628572628] [2024-11-22 12:57:01,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628572628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:01,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:01,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:57:01,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562014886] [2024-11-22 12:57:01,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:01,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:01,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:01,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:57:01,783 INFO L87 Difference]: Start difference. First operand 306 states and 392 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:01,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:01,831 INFO L93 Difference]: Finished difference Result 583 states and 744 transitions. [2024-11-22 12:57:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:57:01,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-22 12:57:01,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:01,833 INFO L225 Difference]: With dead ends: 583 [2024-11-22 12:57:01,833 INFO L226 Difference]: Without dead ends: 329 [2024-11-22 12:57:01,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:57:01,834 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 109 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 686 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 [2024-11-22 12:57:01,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 686 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:57:01,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-22 12:57:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 306. [2024-11-22 12:57:01,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 233 states have (on average 1.1201716738197425) internal successors, (261), 235 states have internal predecessors, (261), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-22 12:57:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 389 transitions. [2024-11-22 12:57:01,859 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 389 transitions. Word has length 156 [2024-11-22 12:57:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:01,860 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 389 transitions. [2024-11-22 12:57:01,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 389 transitions. [2024-11-22 12:57:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 12:57:01,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:01,862 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:01,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:57:01,862 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:01,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:01,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1718952623, now seen corresponding path program 1 times [2024-11-22 12:57:01,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:01,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140595600] [2024-11-22 12:57:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:01,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:57:02,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:02,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140595600] [2024-11-22 12:57:02,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140595600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:57:02,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25264608] [2024-11-22 12:57:02,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:02,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:57:02,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:57:02,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:57:02,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 12:57:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:02,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:57:02,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:57:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:02,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:57:02,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25264608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:02,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:57:02,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-22 12:57:02,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836957847] [2024-11-22 12:57:02,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:02,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:02,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:02,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:02,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:57:02,214 INFO L87 Difference]: Start difference. First operand 306 states and 389 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:02,254 INFO L93 Difference]: Finished difference Result 569 states and 720 transitions. [2024-11-22 12:57:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:57:02,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-22 12:57:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:02,257 INFO L225 Difference]: With dead ends: 569 [2024-11-22 12:57:02,257 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 12:57:02,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:57:02,259 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:02,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:57:02,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 12:57:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-11-22 12:57:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 242 states have (on average 1.115702479338843) internal successors, (270), 244 states have internal predecessors, (270), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-22 12:57:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 398 transitions. [2024-11-22 12:57:02,282 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 398 transitions. Word has length 156 [2024-11-22 12:57:02,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:02,283 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 398 transitions. [2024-11-22 12:57:02,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 398 transitions. [2024-11-22 12:57:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 12:57:02,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:02,285 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:02,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 12:57:02,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 12:57:02,486 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:02,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:02,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1578336880, now seen corresponding path program 1 times [2024-11-22 12:57:02,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:02,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397795586] [2024-11-22 12:57:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:03,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:03,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397795586] [2024-11-22 12:57:03,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397795586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:03,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:03,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:57:03,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026868742] [2024-11-22 12:57:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:03,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:57:03,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:03,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:57:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:57:03,434 INFO L87 Difference]: Start difference. First operand 315 states and 398 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:03,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:03,954 INFO L93 Difference]: Finished difference Result 498 states and 625 transitions. [2024-11-22 12:57:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 12:57:03,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 157 [2024-11-22 12:57:03,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:03,957 INFO L225 Difference]: With dead ends: 498 [2024-11-22 12:57:03,957 INFO L226 Difference]: Without dead ends: 334 [2024-11-22 12:57:03,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-11-22 12:57:03,958 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 163 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:03,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1023 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:57:03,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-22 12:57:03,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 328. [2024-11-22 12:57:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 250 states have (on average 1.112) internal successors, (278), 252 states have internal predecessors, (278), 68 states have call successors, (68), 9 states have call predecessors, (68), 9 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 12:57:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 414 transitions. [2024-11-22 12:57:03,981 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 414 transitions. Word has length 157 [2024-11-22 12:57:03,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:03,981 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 414 transitions. [2024-11-22 12:57:03,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 414 transitions. [2024-11-22 12:57:03,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 12:57:03,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:03,983 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:03,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:57:03,983 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:03,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:03,983 INFO L85 PathProgramCache]: Analyzing trace with hash -568111376, now seen corresponding path program 1 times [2024-11-22 12:57:03,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272736497] [2024-11-22 12:57:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:03,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:04,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:04,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272736497] [2024-11-22 12:57:04,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272736497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:04,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:04,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:57:04,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612860089] [2024-11-22 12:57:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:04,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:04,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:04,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:57:04,157 INFO L87 Difference]: Start difference. First operand 328 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:04,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:04,219 INFO L93 Difference]: Finished difference Result 511 states and 639 transitions. [2024-11-22 12:57:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:57:04,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-22 12:57:04,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:04,222 INFO L225 Difference]: With dead ends: 511 [2024-11-22 12:57:04,223 INFO L226 Difference]: Without dead ends: 334 [2024-11-22 12:57:04,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:57:04,224 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 56 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:04,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 617 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:57:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-22 12:57:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 280. [2024-11-22 12:57:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 211 states have (on average 1.1042654028436019) internal successors, (233), 212 states have internal predecessors, (233), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 12:57:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 353 transitions. [2024-11-22 12:57:04,246 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 353 transitions. Word has length 157 [2024-11-22 12:57:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:04,246 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 353 transitions. [2024-11-22 12:57:04,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 353 transitions. [2024-11-22 12:57:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 12:57:04,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:04,247 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:04,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:57:04,248 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:04,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:04,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1917553494, now seen corresponding path program 1 times [2024-11-22 12:57:04,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:04,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416159167] [2024-11-22 12:57:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:04,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 12:57:04,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910227392] [2024-11-22 12:57:04,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:04,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:57:04,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:57:04,371 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:57:04,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 12:57:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:04,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-22 12:57:04,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:57:05,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-22 12:57:05,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 12:57:05,460 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 43 treesize of output 35 [2024-11-22 12:57:05,468 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 39 treesize of output 31 [2024-11-22 12:57:05,474 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 35 treesize of output 27 [2024-11-22 12:57:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-22 12:57:05,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:57:05,971 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:05,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:05,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416159167] [2024-11-22 12:57:05,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 12:57:05,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910227392] [2024-11-22 12:57:05,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910227392] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 12:57:05,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:57:05,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-22 12:57:05,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376327411] [2024-11-22 12:57:05,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:05,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:05,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:05,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:05,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:57:05,974 INFO L87 Difference]: Start difference. First operand 280 states and 353 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:06,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:06,725 INFO L93 Difference]: Finished difference Result 649 states and 794 transitions. [2024-11-22 12:57:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:57:06,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-22 12:57:06,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:06,728 INFO L225 Difference]: With dead ends: 649 [2024-11-22 12:57:06,728 INFO L226 Difference]: Without dead ends: 421 [2024-11-22 12:57:06,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 304 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:57:06,729 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 96 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:06,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 307 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:57:06,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-22 12:57:06,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 283. [2024-11-22 12:57:06,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 236 states have (on average 1.1059322033898304) internal successors, (261), 236 states have internal predecessors, (261), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:57:06,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 341 transitions. [2024-11-22 12:57:06,752 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 341 transitions. Word has length 158 [2024-11-22 12:57:06,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:06,752 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 341 transitions. [2024-11-22 12:57:06,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:06,753 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 341 transitions. [2024-11-22 12:57:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 12:57:06,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:06,754 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:06,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 12:57:06,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:57:06,955 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:06,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:06,955 INFO L85 PathProgramCache]: Analyzing trace with hash 822164862, now seen corresponding path program 1 times [2024-11-22 12:57:06,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:06,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976392854] [2024-11-22 12:57:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:06,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:07,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976392854] [2024-11-22 12:57:07,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976392854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:07,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:07,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:57:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915567649] [2024-11-22 12:57:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:07,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:07,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:07,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:57:07,345 INFO L87 Difference]: Start difference. First operand 283 states and 341 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:07,458 INFO L93 Difference]: Finished difference Result 520 states and 634 transitions. [2024-11-22 12:57:07,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:57:07,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-11-22 12:57:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:07,461 INFO L225 Difference]: With dead ends: 520 [2024-11-22 12:57:07,461 INFO L226 Difference]: Without dead ends: 355 [2024-11-22 12:57:07,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:57:07,462 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 102 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:07,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 637 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:57:07,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-22 12:57:07,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 168. [2024-11-22 12:57:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 144 states have (on average 1.1180555555555556) internal successors, (161), 144 states have internal predecessors, (161), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:57:07,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 201 transitions. [2024-11-22 12:57:07,476 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 201 transitions. Word has length 159 [2024-11-22 12:57:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:07,476 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 201 transitions. [2024-11-22 12:57:07,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:07,476 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 201 transitions. [2024-11-22 12:57:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 12:57:07,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:07,477 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:07,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 12:57:07,477 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:07,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:07,478 INFO L85 PathProgramCache]: Analyzing trace with hash 869317995, now seen corresponding path program 1 times [2024-11-22 12:57:07,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:07,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285647606] [2024-11-22 12:57:07,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:07,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:07,651 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:07,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:07,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285647606] [2024-11-22 12:57:07,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285647606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:07,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:07,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:57:07,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355237378] [2024-11-22 12:57:07,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:07,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:57:07,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:07,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:57:07,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:57:07,653 INFO L87 Difference]: Start difference. First operand 168 states and 201 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:07,730 INFO L93 Difference]: Finished difference Result 399 states and 472 transitions. [2024-11-22 12:57:07,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:57:07,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-11-22 12:57:07,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:07,733 INFO L225 Difference]: With dead ends: 399 [2024-11-22 12:57:07,733 INFO L226 Difference]: Without dead ends: 234 [2024-11-22 12:57:07,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:57:07,734 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 45 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:07,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 702 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:57:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-22 12:57:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 198. [2024-11-22 12:57:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 174 states have (on average 1.1091954022988506) internal successors, (193), 174 states have internal predecessors, (193), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:57:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 233 transitions. [2024-11-22 12:57:07,747 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 233 transitions. Word has length 159 [2024-11-22 12:57:07,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:07,748 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 233 transitions. [2024-11-22 12:57:07,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:07,748 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 233 transitions. [2024-11-22 12:57:07,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:57:07,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:07,749 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:07,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:57:07,749 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:07,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:07,750 INFO L85 PathProgramCache]: Analyzing trace with hash 826392251, now seen corresponding path program 1 times [2024-11-22 12:57:07,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:07,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466580073] [2024-11-22 12:57:07,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:07,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:09,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:09,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466580073] [2024-11-22 12:57:09,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466580073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:09,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:09,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:57:09,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113147249] [2024-11-22 12:57:09,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:09,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:57:09,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:09,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:57:09,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:57:09,422 INFO L87 Difference]: Start difference. First operand 198 states and 233 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:10,506 INFO L93 Difference]: Finished difference Result 598 states and 707 transitions. [2024-11-22 12:57:10,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 12:57:10,509 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 12:57:10,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:10,511 INFO L225 Difference]: With dead ends: 598 [2024-11-22 12:57:10,511 INFO L226 Difference]: Without dead ends: 403 [2024-11-22 12:57:10,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-11-22 12:57:10,512 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 150 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:10,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1324 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 12:57:10,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-22 12:57:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 393. [2024-11-22 12:57:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 330 states have (on average 1.0909090909090908) internal successors, (360), 331 states have internal predecessors, (360), 53 states have call successors, (53), 9 states have call predecessors, (53), 9 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-22 12:57:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 466 transitions. [2024-11-22 12:57:10,544 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 466 transitions. Word has length 160 [2024-11-22 12:57:10,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:10,544 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 466 transitions. [2024-11-22 12:57:10,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 466 transitions. [2024-11-22 12:57:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:57:10,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:10,545 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:10,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:57:10,546 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:10,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:10,546 INFO L85 PathProgramCache]: Analyzing trace with hash 239586237, now seen corresponding path program 1 times [2024-11-22 12:57:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:10,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381536377] [2024-11-22 12:57:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:10,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:10,857 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:10,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:10,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381536377] [2024-11-22 12:57:10,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381536377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:10,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:10,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:57:10,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253214593] [2024-11-22 12:57:10,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:10,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:10,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:10,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:10,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:57:10,861 INFO L87 Difference]: Start difference. First operand 393 states and 466 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:11,009 INFO L93 Difference]: Finished difference Result 908 states and 1073 transitions. [2024-11-22 12:57:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:57:11,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 12:57:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:11,012 INFO L225 Difference]: With dead ends: 908 [2024-11-22 12:57:11,012 INFO L226 Difference]: Without dead ends: 518 [2024-11-22 12:57:11,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:57:11,014 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 80 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:11,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 703 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:57:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-22 12:57:11,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 514. [2024-11-22 12:57:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 428 states have (on average 1.0771028037383177) internal successors, (461), 430 states have internal predecessors, (461), 72 states have call successors, (72), 13 states have call predecessors, (72), 13 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-22 12:57:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 605 transitions. [2024-11-22 12:57:11,058 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 605 transitions. Word has length 160 [2024-11-22 12:57:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:11,058 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 605 transitions. [2024-11-22 12:57:11,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 605 transitions. [2024-11-22 12:57:11,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:57:11,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:11,060 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:11,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 12:57:11,060 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:11,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:11,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1527992125, now seen corresponding path program 1 times [2024-11-22 12:57:11,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:11,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603114891] [2024-11-22 12:57:11,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:11,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:11,302 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:11,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:11,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603114891] [2024-11-22 12:57:11,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603114891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:11,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:11,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:57:11,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852244892] [2024-11-22 12:57:11,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:11,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:11,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:11,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:11,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:57:11,304 INFO L87 Difference]: Start difference. First operand 514 states and 605 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:11,470 INFO L93 Difference]: Finished difference Result 1150 states and 1358 transitions. [2024-11-22 12:57:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:57:11,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 12:57:11,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:11,473 INFO L225 Difference]: With dead ends: 1150 [2024-11-22 12:57:11,474 INFO L226 Difference]: Without dead ends: 639 [2024-11-22 12:57:11,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:57:11,475 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 82 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:11,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 534 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:57:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-22 12:57:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 566. [2024-11-22 12:57:11,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 461 states have (on average 1.0650759219088937) internal successors, (491), 464 states have internal predecessors, (491), 88 states have call successors, (88), 16 states have call predecessors, (88), 16 states have return successors, (88), 85 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-22 12:57:11,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 667 transitions. [2024-11-22 12:57:11,531 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 667 transitions. Word has length 160 [2024-11-22 12:57:11,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:11,531 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 667 transitions. [2024-11-22 12:57:11,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:11,532 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 667 transitions. [2024-11-22 12:57:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:57:11,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:11,533 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:11,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 12:57:11,533 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:11,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:11,534 INFO L85 PathProgramCache]: Analyzing trace with hash 941186111, now seen corresponding path program 1 times [2024-11-22 12:57:11,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:11,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874971808] [2024-11-22 12:57:11,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:11,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:12,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:12,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874971808] [2024-11-22 12:57:12,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874971808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:12,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:12,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-22 12:57:12,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214342857] [2024-11-22 12:57:12,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:12,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 12:57:12,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:12,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 12:57:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:57:12,880 INFO L87 Difference]: Start difference. First operand 566 states and 667 transitions. Second operand has 17 states, 16 states have (on average 3.9375) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:14,083 INFO L93 Difference]: Finished difference Result 1167 states and 1380 transitions. [2024-11-22 12:57:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 12:57:14,084 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-22 12:57:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:14,086 INFO L225 Difference]: With dead ends: 1167 [2024-11-22 12:57:14,086 INFO L226 Difference]: Without dead ends: 604 [2024-11-22 12:57:14,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=840, Unknown=0, NotChecked=0, Total=992 [2024-11-22 12:57:14,088 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 114 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:14,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1477 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:57:14,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-22 12:57:14,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 595. [2024-11-22 12:57:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 474 states have (on average 1.0590717299578059) internal successors, (502), 478 states have internal predecessors, (502), 101 states have call successors, (101), 19 states have call predecessors, (101), 19 states have return successors, (101), 97 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-22 12:57:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 704 transitions. [2024-11-22 12:57:14,153 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 704 transitions. Word has length 160 [2024-11-22 12:57:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:14,153 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 704 transitions. [2024-11-22 12:57:14,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 704 transitions. [2024-11-22 12:57:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:57:14,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:14,155 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:14,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 12:57:14,155 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:14,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:14,156 INFO L85 PathProgramCache]: Analyzing trace with hash -34453229, now seen corresponding path program 1 times [2024-11-22 12:57:14,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:14,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683875724] [2024-11-22 12:57:14,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:14,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:14,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683875724] [2024-11-22 12:57:14,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683875724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:14,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:14,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:57:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905495472] [2024-11-22 12:57:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:14,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:57:14,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:57:14,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:57:14,317 INFO L87 Difference]: Start difference. First operand 595 states and 704 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:14,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:14,571 INFO L93 Difference]: Finished difference Result 1337 states and 1560 transitions. [2024-11-22 12:57:14,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:57:14,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 12:57:14,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:14,576 INFO L225 Difference]: With dead ends: 1337 [2024-11-22 12:57:14,576 INFO L226 Difference]: Without dead ends: 1024 [2024-11-22 12:57:14,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:57:14,578 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 219 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:14,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 411 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:57:14,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2024-11-22 12:57:14,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 793. [2024-11-22 12:57:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 642 states have (on average 1.0638629283489096) internal successors, (683), 645 states have internal predecessors, (683), 128 states have call successors, (128), 22 states have call predecessors, (128), 22 states have return successors, (128), 125 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 12:57:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 939 transitions. [2024-11-22 12:57:14,657 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 939 transitions. Word has length 160 [2024-11-22 12:57:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:14,657 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 939 transitions. [2024-11-22 12:57:14,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:57:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 939 transitions. [2024-11-22 12:57:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:57:14,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:14,662 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:14,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 12:57:14,662 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:14,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash -780761969, now seen corresponding path program 1 times [2024-11-22 12:57:14,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:14,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237671863] [2024-11-22 12:57:14,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:15,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:15,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237671863] [2024-11-22 12:57:15,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237671863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:15,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:15,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:57:15,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908972151] [2024-11-22 12:57:15,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:15,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:57:15,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:15,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:57:15,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:57:15,339 INFO L87 Difference]: Start difference. First operand 793 states and 939 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:15,855 INFO L93 Difference]: Finished difference Result 1392 states and 1637 transitions. [2024-11-22 12:57:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 12:57:15,856 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-22 12:57:15,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:15,859 INFO L225 Difference]: With dead ends: 1392 [2024-11-22 12:57:15,859 INFO L226 Difference]: Without dead ends: 915 [2024-11-22 12:57:15,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2024-11-22 12:57:15,861 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 153 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:15,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1095 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:57:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-11-22 12:57:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 757. [2024-11-22 12:57:15,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 606 states have (on average 1.0577557755775577) internal successors, (641), 609 states have internal predecessors, (641), 128 states have call successors, (128), 22 states have call predecessors, (128), 22 states have return successors, (128), 125 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 12:57:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 897 transitions. [2024-11-22 12:57:15,937 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 897 transitions. Word has length 160 [2024-11-22 12:57:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:15,937 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 897 transitions. [2024-11-22 12:57:15,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 897 transitions. [2024-11-22 12:57:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 12:57:15,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:15,938 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:15,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 12:57:15,939 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:15,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash 807872812, now seen corresponding path program 1 times [2024-11-22 12:57:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:15,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764519974] [2024-11-22 12:57:15,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:15,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:57:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:57:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:57:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764519974] [2024-11-22 12:57:17,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764519974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:57:17,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:57:17,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-22 12:57:17,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334559171] [2024-11-22 12:57:17,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:57:17,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 12:57:17,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:57:17,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 12:57:17,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:57:17,421 INFO L87 Difference]: Start difference. First operand 757 states and 897 transitions. Second operand has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:18,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:57:18,841 INFO L93 Difference]: Finished difference Result 1247 states and 1467 transitions. [2024-11-22 12:57:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-22 12:57:18,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 163 [2024-11-22 12:57:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:57:18,846 INFO L225 Difference]: With dead ends: 1247 [2024-11-22 12:57:18,846 INFO L226 Difference]: Without dead ends: 957 [2024-11-22 12:57:18,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=1260, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 12:57:18,847 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 214 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:57:18,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1765 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 12:57:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-11-22 12:57:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 813. [2024-11-22 12:57:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 646 states have (on average 1.0557275541795665) internal successors, (682), 650 states have internal predecessors, (682), 141 states have call successors, (141), 25 states have call predecessors, (141), 25 states have return successors, (141), 137 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-22 12:57:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 964 transitions. [2024-11-22 12:57:18,932 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 964 transitions. Word has length 163 [2024-11-22 12:57:18,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:57:18,933 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 964 transitions. [2024-11-22 12:57:18,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:57:18,933 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 964 transitions. [2024-11-22 12:57:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 12:57:18,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:57:18,934 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:57:18,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 12:57:18,934 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:57:18,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:57:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash 148680240, now seen corresponding path program 1 times [2024-11-22 12:57:18,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:57:18,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592087310] [2024-11-22 12:57:18,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:57:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:57:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat