./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-6.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 fb9f80ac793eeca68c7fd49f4ea0c37ec5912db021eb8e0a4597e07f05d1e26c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:37:16,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:37:16,325 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:37:16,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:37:16,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:37:16,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:37:16,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:37:16,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:37:16,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:37:16,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:37:16,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:37:16,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:37:16,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:37:16,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:37:16,380 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:37:16,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:37:16,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:37:16,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:37:16,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:37:16,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:37:16,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:37:16,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:37:16,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:37:16,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:37:16,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:37:16,384 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:37:16,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:37:16,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:37:16,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:37:16,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:37:16,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:37:16,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:37:16,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:37:16,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:37:16,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:37:16,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:37:16,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:37:16,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:37:16,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:37:16,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:37:16,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:37:16,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:37:16,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb9f80ac793eeca68c7fd49f4ea0c37ec5912db021eb8e0a4597e07f05d1e26c [2024-11-19 00:37:16,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:37:16,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:37:16,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:37:16,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:37:16,690 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:37:16,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-6.i [2024-11-19 00:37:18,217 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:37:18,432 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:37:18,433 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-6.i [2024-11-19 00:37:18,446 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320b2b3d2/ef0a7a9704d8449c8346920c68600a02/FLAGf0267ec27 [2024-11-19 00:37:18,463 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320b2b3d2/ef0a7a9704d8449c8346920c68600a02 [2024-11-19 00:37:18,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:37:18,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:37:18,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:37:18,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:37:18,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:37:18,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:18,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27835364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18, skipping insertion in model container [2024-11-19 00:37:18,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:18,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:37:18,686 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-6.i[915,928] [2024-11-19 00:37:18,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:37:18,760 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:37:18,773 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-6.i[915,928] [2024-11-19 00:37:18,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:37:18,901 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:37:18,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18 WrapperNode [2024-11-19 00:37:18,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:37:18,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:37:18,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:37:18,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:37:18,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:18,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:18,971 INFO L138 Inliner]: procedures = 29, calls = 170, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 517 [2024-11-19 00:37:18,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:37:18,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:37:18,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:37:18,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:37:18,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:18,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:18,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,017 INFO L175 MemorySlicer]: Split 135 memory accesses to 6 slices as follows [2, 16, 32, 28, 21, 36]. 27 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 3, 4, 3, 3, 3]. The 18 writes are split as follows [0, 3, 4, 3, 4, 4]. [2024-11-19 00:37:19,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:37:19,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:37:19,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:37:19,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:37:19,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (1/1) ... [2024-11-19 00:37:19,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:37:19,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:37:19,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:37:19,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:37:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:37:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:37:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:37:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:37:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:37:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:37:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:37:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:37:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:37:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:37:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 00:37:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:37:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:37:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:37:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:37:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:37:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:37:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:37:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:37:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:37:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:37:19,334 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:37:19,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:37:19,877 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-19 00:37:19,877 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:37:19,898 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:37:19,899 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:37:19,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:37:19 BoogieIcfgContainer [2024-11-19 00:37:19,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:37:19,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:37:19,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:37:19,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:37:19,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:37:18" (1/3) ... [2024-11-19 00:37:19,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6808f975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:37:19, skipping insertion in model container [2024-11-19 00:37:19,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:37:18" (2/3) ... [2024-11-19 00:37:19,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6808f975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:37:19, skipping insertion in model container [2024-11-19 00:37:19,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:37:19" (3/3) ... [2024-11-19 00:37:19,906 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-6.i [2024-11-19 00:37:19,919 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:37:19,919 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:37:19,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:37:19,979 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;@27ba8c66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:37:19,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:37:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:37:19,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 00:37:19,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:20,000 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:20,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:20,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash -607756942, now seen corresponding path program 1 times [2024-11-19 00:37:20,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:20,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076994873] [2024-11-19 00:37:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:20,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:37:20,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:20,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076994873] [2024-11-19 00:37:20,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076994873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:37:20,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94864212] [2024-11-19 00:37:20,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:20,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:37:20,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:37:20,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:37:20,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:37:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:20,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:37:20,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:37:20,772 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:37:20,772 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:37:20,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94864212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:20,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:37:20,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:37:20,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149503060] [2024-11-19 00:37:20,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:20,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:37:20,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:20,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:37:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:37:20,816 INFO L87 Difference]: Start difference. First operand has 122 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:20,851 INFO L93 Difference]: Finished difference Result 237 states and 371 transitions. [2024-11-19 00:37:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:37:20,855 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2024-11-19 00:37:20,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:20,863 INFO L225 Difference]: With dead ends: 237 [2024-11-19 00:37:20,864 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 00:37:20,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:37:20,873 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:20,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:20,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 00:37:20,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 00:37:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 97 states have internal predecessors, (134), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:37:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2024-11-19 00:37:20,924 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 172 transitions. Word has length 158 [2024-11-19 00:37:20,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:20,926 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 172 transitions. [2024-11-19 00:37:20,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 172 transitions. [2024-11-19 00:37:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 00:37:20,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:20,934 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:20,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:37:21,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:37:21,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:21,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1715716112, now seen corresponding path program 1 times [2024-11-19 00:37:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:21,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43501352] [2024-11-19 00:37:21,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:21,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:21,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:21,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43501352] [2024-11-19 00:37:21,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43501352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:21,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:21,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:37:21,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775328865] [2024-11-19 00:37:21,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:21,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:37:21,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:21,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:37:21,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:37:21,512 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:21,565 INFO L93 Difference]: Finished difference Result 235 states and 344 transitions. [2024-11-19 00:37:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:37:21,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2024-11-19 00:37:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:21,569 INFO L225 Difference]: With dead ends: 235 [2024-11-19 00:37:21,569 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 00:37:21,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:37:21,571 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:21,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:21,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 00:37:21,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-19 00:37:21,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:37:21,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 174 transitions. [2024-11-19 00:37:21,613 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 174 transitions. Word has length 158 [2024-11-19 00:37:21,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:21,614 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 174 transitions. [2024-11-19 00:37:21,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 174 transitions. [2024-11-19 00:37:21,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 00:37:21,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:21,618 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:21,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:37:21,618 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:21,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:21,619 INFO L85 PathProgramCache]: Analyzing trace with hash -931888242, now seen corresponding path program 1 times [2024-11-19 00:37:21,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:21,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332627875] [2024-11-19 00:37:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:21,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:21,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:21,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332627875] [2024-11-19 00:37:21,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332627875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:21,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:21,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:37:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499723976] [2024-11-19 00:37:21,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:21,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:37:21,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:21,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:37:21,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:37:21,876 INFO L87 Difference]: Start difference. First operand 120 states and 174 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:21,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:21,912 INFO L93 Difference]: Finished difference Result 237 states and 345 transitions. [2024-11-19 00:37:21,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:37:21,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-19 00:37:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:21,915 INFO L225 Difference]: With dead ends: 237 [2024-11-19 00:37:21,915 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 00:37:21,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:37:21,918 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:21,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:21,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 00:37:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-19 00:37:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 99 states have internal predecessors, (135), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:37:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 173 transitions. [2024-11-19 00:37:21,930 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 173 transitions. Word has length 158 [2024-11-19 00:37:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:21,931 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 173 transitions. [2024-11-19 00:37:21,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:21,931 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 173 transitions. [2024-11-19 00:37:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 00:37:21,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:21,934 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:21,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:37:21,934 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:21,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1674135312, now seen corresponding path program 1 times [2024-11-19 00:37:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:21,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736376574] [2024-11-19 00:37:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:37:22,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:22,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736376574] [2024-11-19 00:37:22,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736376574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:37:22,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815395924] [2024-11-19 00:37:22,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:22,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:37:22,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:37:22,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:37:22,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:37:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:22,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:37:22,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:37:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:22,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:37:22,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815395924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:22,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:37:22,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-19 00:37:22,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734865870] [2024-11-19 00:37:22,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:22,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:37:22,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:22,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:37:22,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:22,538 INFO L87 Difference]: Start difference. First operand 120 states and 173 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:22,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:22,582 INFO L93 Difference]: Finished difference Result 239 states and 346 transitions. [2024-11-19 00:37:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:37:22,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-19 00:37:22,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:22,587 INFO L225 Difference]: With dead ends: 239 [2024-11-19 00:37:22,587 INFO L226 Difference]: Without dead ends: 122 [2024-11-19 00:37:22,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:22,593 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:22,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 496 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:22,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-19 00:37:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-19 00:37:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 101 states have internal predecessors, (137), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:37:22,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 175 transitions. [2024-11-19 00:37:22,610 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 175 transitions. Word has length 158 [2024-11-19 00:37:22,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:22,610 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 175 transitions. [2024-11-19 00:37:22,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 175 transitions. [2024-11-19 00:37:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 00:37:22,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:22,615 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:22,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:37:22,816 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,SelfDestructingSolverStorable3 [2024-11-19 00:37:22,816 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:22,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:22,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1776006338, now seen corresponding path program 1 times [2024-11-19 00:37:22,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:22,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003694162] [2024-11-19 00:37:22,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:22,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:23,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:23,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003694162] [2024-11-19 00:37:23,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003694162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:23,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:23,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:37:23,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869612619] [2024-11-19 00:37:23,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:23,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:37:23,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:23,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:37:23,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:37:23,130 INFO L87 Difference]: Start difference. First operand 122 states and 175 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:23,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:23,184 INFO L93 Difference]: Finished difference Result 241 states and 347 transitions. [2024-11-19 00:37:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:37:23,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-11-19 00:37:23,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:23,188 INFO L225 Difference]: With dead ends: 241 [2024-11-19 00:37:23,189 INFO L226 Difference]: Without dead ends: 122 [2024-11-19 00:37:23,190 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 [2024-11-19 00:37:23,191 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:23,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-19 00:37:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-19 00:37:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 101 states have internal predecessors, (136), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:37:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 174 transitions. [2024-11-19 00:37:23,206 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 174 transitions. Word has length 160 [2024-11-19 00:37:23,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:23,207 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 174 transitions. [2024-11-19 00:37:23,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:23,207 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 174 transitions. [2024-11-19 00:37:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 00:37:23,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:23,210 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:23,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:37:23,211 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:23,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash 187658436, now seen corresponding path program 1 times [2024-11-19 00:37:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:23,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195101641] [2024-11-19 00:37:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:25,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:25,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195101641] [2024-11-19 00:37:25,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195101641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:25,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:25,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:37:25,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827815999] [2024-11-19 00:37:25,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:25,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:37:25,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:25,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:37:25,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:37:25,108 INFO L87 Difference]: Start difference. First operand 122 states and 174 transitions. Second operand has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 9 states have internal predecessors, (68), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:25,549 INFO L93 Difference]: Finished difference Result 348 states and 497 transitions. [2024-11-19 00:37:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:37:25,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 9 states have internal predecessors, (68), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 160 [2024-11-19 00:37:25,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:25,552 INFO L225 Difference]: With dead ends: 348 [2024-11-19 00:37:25,552 INFO L226 Difference]: Without dead ends: 229 [2024-11-19 00:37:25,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:37:25,555 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 130 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:25,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1610 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:37:25,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-19 00:37:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2024-11-19 00:37:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 190 states have (on average 1.3473684210526315) internal successors, (256), 191 states have internal predecessors, (256), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-19 00:37:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 322 transitions. [2024-11-19 00:37:25,592 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 322 transitions. Word has length 160 [2024-11-19 00:37:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:25,592 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 322 transitions. [2024-11-19 00:37:25,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 9 states have internal predecessors, (68), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 322 transitions. [2024-11-19 00:37:25,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 00:37:25,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:25,595 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:25,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:37:25,595 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:25,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:25,595 INFO L85 PathProgramCache]: Analyzing trace with hash -938376661, now seen corresponding path program 1 times [2024-11-19 00:37:25,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:25,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109252077] [2024-11-19 00:37:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:25,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:37:30,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:30,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109252077] [2024-11-19 00:37:30,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109252077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:30,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:30,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 00:37:30,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345354405] [2024-11-19 00:37:30,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:30,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:37:30,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:37:30,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:37:30,900 INFO L87 Difference]: Start difference. First operand 226 states and 322 transitions. Second operand has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 2 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:48,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:48,025 INFO L93 Difference]: Finished difference Result 920 states and 1309 transitions. [2024-11-19 00:37:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 00:37:48,026 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 2 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-11-19 00:37:48,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:48,030 INFO L225 Difference]: With dead ends: 920 [2024-11-19 00:37:48,031 INFO L226 Difference]: Without dead ends: 697 [2024-11-19 00:37:48,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=188, Invalid=1144, Unknown=0, NotChecked=0, Total=1332 [2024-11-19 00:37:48,032 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 745 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:48,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1650 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-19 00:37:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-19 00:37:48,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 516. [2024-11-19 00:37:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 427 states have (on average 1.334894613583138) internal successors, (570), 430 states have internal predecessors, (570), 82 states have call successors, (82), 6 states have call predecessors, (82), 6 states have return successors, (82), 79 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 00:37:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 734 transitions. [2024-11-19 00:37:48,090 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 734 transitions. Word has length 160 [2024-11-19 00:37:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:48,090 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 734 transitions. [2024-11-19 00:37:48,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 2 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:48,091 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 734 transitions. [2024-11-19 00:37:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-19 00:37:48,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:48,093 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:48,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:37:48,093 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:48,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:48,094 INFO L85 PathProgramCache]: Analyzing trace with hash -789930225, now seen corresponding path program 1 times [2024-11-19 00:37:48,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:48,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228925969] [2024-11-19 00:37:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:48,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:49,468 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:49,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:49,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228925969] [2024-11-19 00:37:49,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228925969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:49,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:49,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:37:49,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833644483] [2024-11-19 00:37:49,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:49,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:37:49,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:49,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:37:49,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:37:49,475 INFO L87 Difference]: Start difference. First operand 516 states and 734 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:50,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:50,339 INFO L93 Difference]: Finished difference Result 872 states and 1239 transitions. [2024-11-19 00:37:50,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:37:50,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 161 [2024-11-19 00:37:50,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:50,345 INFO L225 Difference]: With dead ends: 872 [2024-11-19 00:37:50,345 INFO L226 Difference]: Without dead ends: 569 [2024-11-19 00:37:50,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:37:50,348 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 331 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:50,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1147 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:37:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-19 00:37:50,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 539. [2024-11-19 00:37:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 450 states have (on average 1.3355555555555556) internal successors, (601), 453 states have internal predecessors, (601), 82 states have call successors, (82), 6 states have call predecessors, (82), 6 states have return successors, (82), 79 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 00:37:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 765 transitions. [2024-11-19 00:37:50,407 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 765 transitions. Word has length 161 [2024-11-19 00:37:50,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:50,407 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 765 transitions. [2024-11-19 00:37:50,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:50,408 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 765 transitions. [2024-11-19 00:37:50,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-19 00:37:50,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:50,409 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:50,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:37:50,410 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:50,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -949690418, now seen corresponding path program 1 times [2024-11-19 00:37:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:50,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801696685] [2024-11-19 00:37:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:51,074 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:51,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:51,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801696685] [2024-11-19 00:37:51,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801696685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:51,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:51,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:37:51,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253813572] [2024-11-19 00:37:51,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:51,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:37:51,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:51,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:37:51,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:51,077 INFO L87 Difference]: Start difference. First operand 539 states and 765 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:51,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:51,575 INFO L93 Difference]: Finished difference Result 1458 states and 2069 transitions. [2024-11-19 00:37:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:37:51,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2024-11-19 00:37:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:51,582 INFO L225 Difference]: With dead ends: 1458 [2024-11-19 00:37:51,582 INFO L226 Difference]: Without dead ends: 1050 [2024-11-19 00:37:51,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:37:51,587 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 266 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:51,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 750 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:37:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2024-11-19 00:37:51,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 961. [2024-11-19 00:37:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 805 states have (on average 1.3316770186335403) internal successors, (1072), 811 states have internal predecessors, (1072), 145 states have call successors, (145), 10 states have call predecessors, (145), 10 states have return successors, (145), 139 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-19 00:37:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1362 transitions. [2024-11-19 00:37:51,701 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1362 transitions. Word has length 161 [2024-11-19 00:37:51,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:51,701 INFO L471 AbstractCegarLoop]: Abstraction has 961 states and 1362 transitions. [2024-11-19 00:37:51,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:51,702 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1362 transitions. [2024-11-19 00:37:51,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-19 00:37:51,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:51,703 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:51,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:37:51,704 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:51,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:51,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1656333136, now seen corresponding path program 1 times [2024-11-19 00:37:51,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:51,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271001171] [2024-11-19 00:37:51,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:51,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:52,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:52,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271001171] [2024-11-19 00:37:52,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271001171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:52,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:52,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:37:52,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391165339] [2024-11-19 00:37:52,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:52,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:37:52,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:52,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:37:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:37:52,169 INFO L87 Difference]: Start difference. First operand 961 states and 1362 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:52,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:52,446 INFO L93 Difference]: Finished difference Result 2545 states and 3630 transitions. [2024-11-19 00:37:52,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:37:52,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2024-11-19 00:37:52,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:52,459 INFO L225 Difference]: With dead ends: 2545 [2024-11-19 00:37:52,459 INFO L226 Difference]: Without dead ends: 1795 [2024-11-19 00:37:52,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:37:52,462 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 162 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:52,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1298 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:37:52,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2024-11-19 00:37:52,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1771. [2024-11-19 00:37:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1481 states have (on average 1.3328831870357867) internal successors, (1974), 1493 states have internal predecessors, (1974), 271 states have call successors, (271), 18 states have call predecessors, (271), 18 states have return successors, (271), 259 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-19 00:37:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2516 transitions. [2024-11-19 00:37:52,674 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2516 transitions. Word has length 161 [2024-11-19 00:37:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:52,675 INFO L471 AbstractCegarLoop]: Abstraction has 1771 states and 2516 transitions. [2024-11-19 00:37:52,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:52,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2516 transitions. [2024-11-19 00:37:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-19 00:37:52,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:52,678 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:52,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:37:52,679 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:52,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:52,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1627516910, now seen corresponding path program 1 times [2024-11-19 00:37:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:52,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101156725] [2024-11-19 00:37:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:52,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:53,393 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:53,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:53,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101156725] [2024-11-19 00:37:53,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101156725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:53,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:53,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:37:53,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074794287] [2024-11-19 00:37:53,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:53,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:37:53,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:53,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:37:53,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:53,395 INFO L87 Difference]: Start difference. First operand 1771 states and 2516 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:53,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:53,993 INFO L93 Difference]: Finished difference Result 2986 states and 4243 transitions. [2024-11-19 00:37:53,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:37:53,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2024-11-19 00:37:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:54,006 INFO L225 Difference]: With dead ends: 2986 [2024-11-19 00:37:54,006 INFO L226 Difference]: Without dead ends: 1933 [2024-11-19 00:37:54,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:37:54,012 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 235 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:54,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 901 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:37:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2024-11-19 00:37:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1759. [2024-11-19 00:37:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1469 states have (on average 1.328795098706603) internal successors, (1952), 1481 states have internal predecessors, (1952), 271 states have call successors, (271), 18 states have call predecessors, (271), 18 states have return successors, (271), 259 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-19 00:37:54,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2494 transitions. [2024-11-19 00:37:54,217 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2494 transitions. Word has length 161 [2024-11-19 00:37:54,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:54,217 INFO L471 AbstractCegarLoop]: Abstraction has 1759 states and 2494 transitions. [2024-11-19 00:37:54,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:54,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2494 transitions. [2024-11-19 00:37:54,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-19 00:37:54,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:54,220 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:54,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:37:54,221 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:54,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1083703924, now seen corresponding path program 1 times [2024-11-19 00:37:54,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:54,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917177040] [2024-11-19 00:37:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:54,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:55,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917177040] [2024-11-19 00:37:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917177040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:55,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:55,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:37:55,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95933642] [2024-11-19 00:37:55,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:55,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:37:55,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:55,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:37:55,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:37:55,253 INFO L87 Difference]: Start difference. First operand 1759 states and 2494 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:55,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:55,998 INFO L93 Difference]: Finished difference Result 2374 states and 3372 transitions. [2024-11-19 00:37:55,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:37:55,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2024-11-19 00:37:55,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:56,007 INFO L225 Difference]: With dead ends: 2374 [2024-11-19 00:37:56,008 INFO L226 Difference]: Without dead ends: 1745 [2024-11-19 00:37:56,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:37:56,010 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 162 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:56,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1051 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:37:56,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2024-11-19 00:37:56,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1743. [2024-11-19 00:37:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1453 states have (on average 1.3269098417068135) internal successors, (1928), 1465 states have internal predecessors, (1928), 271 states have call successors, (271), 18 states have call predecessors, (271), 18 states have return successors, (271), 259 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-19 00:37:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2470 transitions. [2024-11-19 00:37:56,187 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2470 transitions. Word has length 161 [2024-11-19 00:37:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:56,187 INFO L471 AbstractCegarLoop]: Abstraction has 1743 states and 2470 transitions. [2024-11-19 00:37:56,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:56,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2470 transitions. [2024-11-19 00:37:56,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-19 00:37:56,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:56,190 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:56,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:37:56,190 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:56,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:56,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1761530416, now seen corresponding path program 1 times [2024-11-19 00:37:56,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:56,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460884718] [2024-11-19 00:37:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:56,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:57,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:57,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460884718] [2024-11-19 00:37:57,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460884718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:57,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:57,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:37:57,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315679552] [2024-11-19 00:37:57,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:57,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:37:57,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:57,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:37:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:37:57,476 INFO L87 Difference]: Start difference. First operand 1743 states and 2470 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:58,428 INFO L93 Difference]: Finished difference Result 2478 states and 3514 transitions. [2024-11-19 00:37:58,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:37:58,429 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2024-11-19 00:37:58,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:58,437 INFO L225 Difference]: With dead ends: 2478 [2024-11-19 00:37:58,437 INFO L226 Difference]: Without dead ends: 1863 [2024-11-19 00:37:58,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-19 00:37:58,440 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 312 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:58,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1103 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:37:58,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2024-11-19 00:37:58,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1777. [2024-11-19 00:37:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1471 states have (on average 1.3201903467029232) internal successors, (1942), 1483 states have internal predecessors, (1942), 283 states have call successors, (283), 22 states have call predecessors, (283), 22 states have return successors, (283), 271 states have call predecessors, (283), 283 states have call successors, (283) [2024-11-19 00:37:58,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2508 transitions. [2024-11-19 00:37:58,661 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2508 transitions. Word has length 161 [2024-11-19 00:37:58,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:58,661 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 2508 transitions. [2024-11-19 00:37:58,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2508 transitions. [2024-11-19 00:37:58,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-19 00:37:58,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:58,664 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:58,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:37:58,665 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:58,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:58,665 INFO L85 PathProgramCache]: Analyzing trace with hash 549334998, now seen corresponding path program 1 times [2024-11-19 00:37:58,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:58,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208650673] [2024-11-19 00:37:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:58,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:37:58,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:58,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208650673] [2024-11-19 00:37:58,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208650673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:37:58,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662851367] [2024-11-19 00:37:58,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:58,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:37:58,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:37:58,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:37:58,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:37:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:59,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 00:37:59,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:37:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:59,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:37:59,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662851367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:59,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:37:59,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 00:37:59,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110871239] [2024-11-19 00:37:59,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:59,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:37:59,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:59,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:37:59,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:59,126 INFO L87 Difference]: Start difference. First operand 1777 states and 2508 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:59,308 INFO L93 Difference]: Finished difference Result 3261 states and 4621 transitions. [2024-11-19 00:37:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:37:59,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-19 00:37:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:59,318 INFO L225 Difference]: With dead ends: 3261 [2024-11-19 00:37:59,318 INFO L226 Difference]: Without dead ends: 1825 [2024-11-19 00:37:59,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:59,322 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 651 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 [2024-11-19 00:37:59,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 651 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2024-11-19 00:37:59,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1825. [2024-11-19 00:37:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1519 states have (on average 1.3100724160631996) internal successors, (1990), 1531 states have internal predecessors, (1990), 283 states have call successors, (283), 22 states have call predecessors, (283), 22 states have return successors, (283), 271 states have call predecessors, (283), 283 states have call successors, (283) [2024-11-19 00:37:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2556 transitions. [2024-11-19 00:37:59,496 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2556 transitions. Word has length 162 [2024-11-19 00:37:59,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:59,497 INFO L471 AbstractCegarLoop]: Abstraction has 1825 states and 2556 transitions. [2024-11-19 00:37:59,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2556 transitions. [2024-11-19 00:37:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-19 00:37:59,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:59,500 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:59,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 00:37:59,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:37:59,701 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:59,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:59,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1145508905, now seen corresponding path program 1 times [2024-11-19 00:37:59,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:59,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028314416] [2024-11-19 00:37:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:59,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:01,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:01,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028314416] [2024-11-19 00:38:01,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028314416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:01,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:01,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:38:01,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643511383] [2024-11-19 00:38:01,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:01,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:38:01,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:01,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:38:01,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:38:01,066 INFO L87 Difference]: Start difference. First operand 1825 states and 2556 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:38:02,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:02,169 INFO L93 Difference]: Finished difference Result 3161 states and 4426 transitions. [2024-11-19 00:38:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:38:02,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 162 [2024-11-19 00:38:02,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:02,179 INFO L225 Difference]: With dead ends: 3161 [2024-11-19 00:38:02,180 INFO L226 Difference]: Without dead ends: 1865 [2024-11-19 00:38:02,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:38:02,185 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 389 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:02,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1088 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:38:02,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2024-11-19 00:38:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1805. [2024-11-19 00:38:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1499 states have (on average 1.306204136090727) internal successors, (1958), 1511 states have internal predecessors, (1958), 283 states have call successors, (283), 22 states have call predecessors, (283), 22 states have return successors, (283), 271 states have call predecessors, (283), 283 states have call successors, (283) [2024-11-19 00:38:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2524 transitions. [2024-11-19 00:38:02,389 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2524 transitions. Word has length 162 [2024-11-19 00:38:02,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:02,390 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2524 transitions. [2024-11-19 00:38:02,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:38:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2524 transitions. [2024-11-19 00:38:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 00:38:02,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:02,392 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:02,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:38:02,392 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:02,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:02,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2014323788, now seen corresponding path program 1 times [2024-11-19 00:38:02,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:02,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265707642] [2024-11-19 00:38:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:02,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:03,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:03,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265707642] [2024-11-19 00:38:03,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265707642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:03,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:03,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:38:03,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291008207] [2024-11-19 00:38:03,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:03,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:38:03,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:03,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:38:03,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:38:03,342 INFO L87 Difference]: Start difference. First operand 1805 states and 2524 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:38:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:03,916 INFO L93 Difference]: Finished difference Result 3836 states and 5371 transitions. [2024-11-19 00:38:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:38:03,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 163 [2024-11-19 00:38:03,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:03,928 INFO L225 Difference]: With dead ends: 3836 [2024-11-19 00:38:03,928 INFO L226 Difference]: Without dead ends: 2604 [2024-11-19 00:38:03,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:38:03,932 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 114 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:03,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1700 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:38:03,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-11-19 00:38:04,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2582. [2024-11-19 00:38:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2582 states, 2204 states have (on average 1.311705989110708) internal successors, (2891), 2224 states have internal predecessors, (2891), 347 states have call successors, (347), 30 states have call predecessors, (347), 30 states have return successors, (347), 327 states have call predecessors, (347), 347 states have call successors, (347) [2024-11-19 00:38:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2582 states to 2582 states and 3585 transitions. [2024-11-19 00:38:04,157 INFO L78 Accepts]: Start accepts. Automaton has 2582 states and 3585 transitions. Word has length 163 [2024-11-19 00:38:04,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:04,158 INFO L471 AbstractCegarLoop]: Abstraction has 2582 states and 3585 transitions. [2024-11-19 00:38:04,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:38:04,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2582 states and 3585 transitions. [2024-11-19 00:38:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 00:38:04,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:04,161 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:04,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:38:04,161 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:04,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:04,161 INFO L85 PathProgramCache]: Analyzing trace with hash -258876517, now seen corresponding path program 1 times [2024-11-19 00:38:04,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:04,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241235169] [2024-11-19 00:38:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:04,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:05,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:05,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241235169] [2024-11-19 00:38:05,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241235169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:05,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:05,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:38:05,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613903442] [2024-11-19 00:38:05,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:05,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:38:05,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:05,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:38:05,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:05,349 INFO L87 Difference]: Start difference. First operand 2582 states and 3585 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:06,512 INFO L93 Difference]: Finished difference Result 4540 states and 6324 transitions. [2024-11-19 00:38:06,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:38:06,513 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 163 [2024-11-19 00:38:06,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:06,531 INFO L225 Difference]: With dead ends: 4540 [2024-11-19 00:38:06,531 INFO L226 Difference]: Without dead ends: 3870 [2024-11-19 00:38:06,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:38:06,535 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 290 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:06,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 2332 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:38:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2024-11-19 00:38:06,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 3852. [2024-11-19 00:38:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3304 states have (on average 1.3141646489104115) internal successors, (4342), 3334 states have internal predecessors, (4342), 505 states have call successors, (505), 42 states have call predecessors, (505), 42 states have return successors, (505), 475 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-19 00:38:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 5352 transitions. [2024-11-19 00:38:06,848 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 5352 transitions. Word has length 163 [2024-11-19 00:38:06,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:06,849 INFO L471 AbstractCegarLoop]: Abstraction has 3852 states and 5352 transitions. [2024-11-19 00:38:06,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:06,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 5352 transitions. [2024-11-19 00:38:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 00:38:06,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:06,852 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:06,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:38:06,852 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:06,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:06,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1664351517, now seen corresponding path program 1 times [2024-11-19 00:38:06,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:06,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194323270] [2024-11-19 00:38:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:06,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:07,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:07,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194323270] [2024-11-19 00:38:07,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194323270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:07,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:07,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:38:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542207395] [2024-11-19 00:38:07,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:07,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:38:07,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:38:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:38:07,119 INFO L87 Difference]: Start difference. First operand 3852 states and 5352 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:07,385 INFO L93 Difference]: Finished difference Result 5696 states and 7941 transitions. [2024-11-19 00:38:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:38:07,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 163 [2024-11-19 00:38:07,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:07,408 INFO L225 Difference]: With dead ends: 5696 [2024-11-19 00:38:07,408 INFO L226 Difference]: Without dead ends: 3780 [2024-11-19 00:38:07,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:38:07,416 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:07,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 473 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:38:07,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2024-11-19 00:38:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 3190. [2024-11-19 00:38:07,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 2727 states have (on average 1.312064539787312) internal successors, (3578), 2752 states have internal predecessors, (3578), 426 states have call successors, (426), 36 states have call predecessors, (426), 36 states have return successors, (426), 401 states have call predecessors, (426), 426 states have call successors, (426) [2024-11-19 00:38:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 4430 transitions. [2024-11-19 00:38:07,731 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 4430 transitions. Word has length 163 [2024-11-19 00:38:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:07,732 INFO L471 AbstractCegarLoop]: Abstraction has 3190 states and 4430 transitions. [2024-11-19 00:38:07,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:07,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 4430 transitions. [2024-11-19 00:38:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 00:38:07,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:07,736 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:07,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:38:07,736 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:07,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1991691534, now seen corresponding path program 1 times [2024-11-19 00:38:07,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865056038] [2024-11-19 00:38:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:07,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:38:08,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865056038] [2024-11-19 00:38:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865056038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:38:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385869147] [2024-11-19 00:38:08,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:08,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:38:08,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:38:08,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:38:08,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:38:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:08,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 00:38:08,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:38:08,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 00:38:08,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 00:38:08,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-19 00:38:09,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 00:38:09,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 14 [2024-11-19 00:38:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 270 proven. 12 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-11-19 00:38:09,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:38:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:38:09,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385869147] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:38:09,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:38:09,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2024-11-19 00:38:09,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930796264] [2024-11-19 00:38:09,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:38:09,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:38:09,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:38:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:38:09,454 INFO L87 Difference]: Start difference. First operand 3190 states and 4430 transitions. Second operand has 16 states, 14 states have (on average 9.071428571428571) internal successors, (127), 16 states have internal predecessors, (127), 6 states have call successors, (57), 3 states have call predecessors, (57), 6 states have return successors, (57), 4 states have call predecessors, (57), 6 states have call successors, (57) [2024-11-19 00:38:10,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:10,285 INFO L93 Difference]: Finished difference Result 5479 states and 7609 transitions. [2024-11-19 00:38:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 00:38:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 9.071428571428571) internal successors, (127), 16 states have internal predecessors, (127), 6 states have call successors, (57), 3 states have call predecessors, (57), 6 states have return successors, (57), 4 states have call predecessors, (57), 6 states have call successors, (57) Word has length 163 [2024-11-19 00:38:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:10,314 INFO L225 Difference]: With dead ends: 5479 [2024-11-19 00:38:10,318 INFO L226 Difference]: Without dead ends: 3129 [2024-11-19 00:38:10,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 317 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:38:10,326 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 649 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:10,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1301 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:38:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2024-11-19 00:38:10,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3105. [2024-11-19 00:38:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2634 states have (on average 1.3086560364464692) internal successors, (3447), 2656 states have internal predecessors, (3447), 429 states have call successors, (429), 41 states have call predecessors, (429), 41 states have return successors, (429), 407 states have call predecessors, (429), 429 states have call successors, (429) [2024-11-19 00:38:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 4305 transitions. [2024-11-19 00:38:10,565 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 4305 transitions. Word has length 163 [2024-11-19 00:38:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:10,568 INFO L471 AbstractCegarLoop]: Abstraction has 3105 states and 4305 transitions. [2024-11-19 00:38:10,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 9.071428571428571) internal successors, (127), 16 states have internal predecessors, (127), 6 states have call successors, (57), 3 states have call predecessors, (57), 6 states have return successors, (57), 4 states have call predecessors, (57), 6 states have call successors, (57) [2024-11-19 00:38:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 4305 transitions. [2024-11-19 00:38:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 00:38:10,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:10,571 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:10,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 00:38:10,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:38:10,772 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:10,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:10,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1360022434, now seen corresponding path program 1 times [2024-11-19 00:38:10,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:10,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443989213] [2024-11-19 00:38:10,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:10,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:11,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:11,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443989213] [2024-11-19 00:38:11,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443989213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:11,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:11,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:38:11,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106996311] [2024-11-19 00:38:11,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:11,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:38:11,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:11,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:38:11,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:11,412 INFO L87 Difference]: Start difference. First operand 3105 states and 4305 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:12,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:12,348 INFO L93 Difference]: Finished difference Result 5221 states and 7209 transitions. [2024-11-19 00:38:12,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:38:12,349 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-11-19 00:38:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:12,369 INFO L225 Difference]: With dead ends: 5221 [2024-11-19 00:38:12,369 INFO L226 Difference]: Without dead ends: 4349 [2024-11-19 00:38:12,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-19 00:38:12,375 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 418 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:12,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1926 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:38:12,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2024-11-19 00:38:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 3981. [2024-11-19 00:38:12,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3981 states, 3386 states have (on average 1.30685174246899) internal successors, (4425), 3414 states have internal predecessors, (4425), 543 states have call successors, (543), 51 states have call predecessors, (543), 51 states have return successors, (543), 515 states have call predecessors, (543), 543 states have call successors, (543) [2024-11-19 00:38:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 5511 transitions. [2024-11-19 00:38:12,683 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 5511 transitions. Word has length 164 [2024-11-19 00:38:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:12,684 INFO L471 AbstractCegarLoop]: Abstraction has 3981 states and 5511 transitions. [2024-11-19 00:38:12,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 5511 transitions. [2024-11-19 00:38:12,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 00:38:12,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:12,686 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:12,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:38:12,687 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:12,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:12,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2037848926, now seen corresponding path program 1 times [2024-11-19 00:38:12,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:12,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178843287] [2024-11-19 00:38:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:12,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:13,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:13,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178843287] [2024-11-19 00:38:13,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178843287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:13,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:13,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:38:13,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261532400] [2024-11-19 00:38:13,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:13,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:38:13,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:13,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:38:13,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:38:13,403 INFO L87 Difference]: Start difference. First operand 3981 states and 5511 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:14,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:14,568 INFO L93 Difference]: Finished difference Result 6017 states and 8311 transitions. [2024-11-19 00:38:14,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:38:14,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-11-19 00:38:14,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:14,585 INFO L225 Difference]: With dead ends: 6017 [2024-11-19 00:38:14,585 INFO L226 Difference]: Without dead ends: 4331 [2024-11-19 00:38:14,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:38:14,590 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 475 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:14,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1971 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:38:14,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2024-11-19 00:38:14,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 3963. [2024-11-19 00:38:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3963 states, 3368 states have (on average 1.3049287410926367) internal successors, (4395), 3396 states have internal predecessors, (4395), 543 states have call successors, (543), 51 states have call predecessors, (543), 51 states have return successors, (543), 515 states have call predecessors, (543), 543 states have call successors, (543) [2024-11-19 00:38:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 5481 transitions. [2024-11-19 00:38:14,886 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 5481 transitions. Word has length 164 [2024-11-19 00:38:14,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:14,889 INFO L471 AbstractCegarLoop]: Abstraction has 3963 states and 5481 transitions. [2024-11-19 00:38:14,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 5481 transitions. [2024-11-19 00:38:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 00:38:14,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:14,891 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:14,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 00:38:14,891 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:14,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:14,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1494035940, now seen corresponding path program 1 times [2024-11-19 00:38:14,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:14,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453790468] [2024-11-19 00:38:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:14,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:15,589 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:15,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:15,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453790468] [2024-11-19 00:38:15,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453790468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:15,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:15,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:38:15,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381335252] [2024-11-19 00:38:15,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:15,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:38:15,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:15,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:38:15,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:38:15,591 INFO L87 Difference]: Start difference. First operand 3963 states and 5481 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:16,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:16,223 INFO L93 Difference]: Finished difference Result 6213 states and 8629 transitions. [2024-11-19 00:38:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:38:16,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-11-19 00:38:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:16,238 INFO L225 Difference]: With dead ends: 6213 [2024-11-19 00:38:16,238 INFO L226 Difference]: Without dead ends: 4705 [2024-11-19 00:38:16,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:38:16,245 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 151 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:16,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1486 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:38:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2024-11-19 00:38:16,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 3978. [2024-11-19 00:38:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3978 states, 3383 states have (on average 1.3026899201891813) internal successors, (4407), 3411 states have internal predecessors, (4407), 543 states have call successors, (543), 51 states have call predecessors, (543), 51 states have return successors, (543), 515 states have call predecessors, (543), 543 states have call successors, (543) [2024-11-19 00:38:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 5493 transitions. [2024-11-19 00:38:16,557 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 5493 transitions. Word has length 164 [2024-11-19 00:38:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:16,557 INFO L471 AbstractCegarLoop]: Abstraction has 3978 states and 5493 transitions. [2024-11-19 00:38:16,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:16,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 5493 transitions. [2024-11-19 00:38:16,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 00:38:16,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:16,560 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:16,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:38:16,560 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:16,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash -482918690, now seen corresponding path program 1 times [2024-11-19 00:38:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702637312] [2024-11-19 00:38:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:16,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:16,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:16,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702637312] [2024-11-19 00:38:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702637312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:38:16,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19491826] [2024-11-19 00:38:16,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:16,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:38:16,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:16,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:38:16,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:16,914 INFO L87 Difference]: Start difference. First operand 3978 states and 5493 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:17,367 INFO L93 Difference]: Finished difference Result 6689 states and 9260 transitions. [2024-11-19 00:38:17,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:38:17,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-11-19 00:38:17,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:17,381 INFO L225 Difference]: With dead ends: 6689 [2024-11-19 00:38:17,381 INFO L226 Difference]: Without dead ends: 5174 [2024-11-19 00:38:17,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:38:17,386 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 161 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:17,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1383 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:17,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5174 states. [2024-11-19 00:38:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5174 to 4303. [2024-11-19 00:38:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 3664 states have (on average 1.3051310043668123) internal successors, (4782), 3694 states have internal predecessors, (4782), 584 states have call successors, (584), 54 states have call predecessors, (584), 54 states have return successors, (584), 554 states have call predecessors, (584), 584 states have call successors, (584) [2024-11-19 00:38:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 5950 transitions. [2024-11-19 00:38:17,707 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 5950 transitions. Word has length 164 [2024-11-19 00:38:17,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:17,708 INFO L471 AbstractCegarLoop]: Abstraction has 4303 states and 5950 transitions. [2024-11-19 00:38:17,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 5950 transitions. [2024-11-19 00:38:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 00:38:17,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:17,710 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:17,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 00:38:17,710 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:17,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2123104864, now seen corresponding path program 1 times [2024-11-19 00:38:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406602263] [2024-11-19 00:38:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:18,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406602263] [2024-11-19 00:38:18,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406602263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:18,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:18,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:38:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334839617] [2024-11-19 00:38:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:18,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:38:18,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:18,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:38:18,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:38:18,816 INFO L87 Difference]: Start difference. First operand 4303 states and 5950 transitions. Second operand has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:38:20,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:20,062 INFO L93 Difference]: Finished difference Result 5865 states and 8106 transitions. [2024-11-19 00:38:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 00:38:20,063 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2024-11-19 00:38:20,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:20,079 INFO L225 Difference]: With dead ends: 5865 [2024-11-19 00:38:20,079 INFO L226 Difference]: Without dead ends: 5007 [2024-11-19 00:38:20,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2024-11-19 00:38:20,084 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 399 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:20,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1750 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:38:20,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5007 states. [2024-11-19 00:38:20,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5007 to 4491. [2024-11-19 00:38:20,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4491 states, 3810 states have (on average 1.3034120734908137) internal successors, (4966), 3842 states have internal predecessors, (4966), 622 states have call successors, (622), 58 states have call predecessors, (622), 58 states have return successors, (622), 590 states have call predecessors, (622), 622 states have call successors, (622) [2024-11-19 00:38:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 6210 transitions. [2024-11-19 00:38:20,611 INFO L78 Accepts]: Start accepts. Automaton has 4491 states and 6210 transitions. Word has length 164 [2024-11-19 00:38:20,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:20,612 INFO L471 AbstractCegarLoop]: Abstraction has 4491 states and 6210 transitions. [2024-11-19 00:38:20,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:38:20,612 INFO L276 IsEmpty]: Start isEmpty. Operand 4491 states and 6210 transitions. [2024-11-19 00:38:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 00:38:20,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:20,614 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:38:20,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 00:38:20,616 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:20,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2031266341, now seen corresponding path program 1 times [2024-11-19 00:38:20,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:20,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021972037] [2024-11-19 00:38:20,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:20,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:20,714 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:20,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:20,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021972037] [2024-11-19 00:38:20,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021972037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:20,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:20,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:38:20,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125637506] [2024-11-19 00:38:20,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:20,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:38:20,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:20,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:38:20,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:38:20,717 INFO L87 Difference]: Start difference. First operand 4491 states and 6210 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:38:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:20,990 INFO L93 Difference]: Finished difference Result 10240 states and 14110 transitions. [2024-11-19 00:38:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:38:20,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-11-19 00:38:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:21,008 INFO L225 Difference]: With dead ends: 10240 [2024-11-19 00:38:21,009 INFO L226 Difference]: Without dead ends: 6123 [2024-11-19 00:38:21,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:38:21,020 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 39 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:21,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 329 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:38:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states.