./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.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-p_file-40.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 635d22826d94d730e7ad3ae4f19cd66841ae17da2d3a120d8f593801b41e2197 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:56:23,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:56:23,097 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:56:23,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:56:23,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:56:23,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:56:23,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:56:23,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:56:23,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:56:23,144 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:56:23,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:56:23,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:56:23,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:56:23,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:56:23,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:56:23,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:56:23,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:56:23,148 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:56:23,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:56:23,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:56:23,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:56:23,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:56:23,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:56:23,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:56:23,153 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:56:23,153 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:56:23,153 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:56:23,154 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:56:23,154 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:56:23,154 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:56:23,154 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:56:23,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:56:23,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:56:23,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:56:23,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:56:23,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:56:23,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:56:23,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:56:23,157 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:56:23,157 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:56:23,158 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:56:23,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:56:23,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635d22826d94d730e7ad3ae4f19cd66841ae17da2d3a120d8f593801b41e2197 [2024-11-19 00:56:23,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:56:23,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:56:23,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:56:23,449 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:56:23,450 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:56:23,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i [2024-11-19 00:56:24,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:56:25,153 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:56:25,156 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i [2024-11-19 00:56:25,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d56521c/e9ab9bc9b4df46509fe8bb70b85c3a13/FLAG5037d3dfe [2024-11-19 00:56:25,482 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d56521c/e9ab9bc9b4df46509fe8bb70b85c3a13 [2024-11-19 00:56:25,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:56:25,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:56:25,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:56:25,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:56:25,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:56:25,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e1d585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25, skipping insertion in model container [2024-11-19 00:56:25,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:56:25,691 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i[916,929] [2024-11-19 00:56:25,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:56:25,776 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:56:25,789 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i[916,929] [2024-11-19 00:56:25,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:56:25,845 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:56:25,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25 WrapperNode [2024-11-19 00:56:25,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:56:25,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:56:25,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:56:25,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:56:25,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,908 INFO L138 Inliner]: procedures = 29, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 509 [2024-11-19 00:56:25,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:56:25,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:56:25,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:56:25,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:56:25,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,960 INFO L175 MemorySlicer]: Split 120 memory accesses to 17 slices as follows [2, 3, 6, 10, 5, 7, 7, 6, 8, 4, 10, 9, 8, 10, 15, 3, 7]. 13 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-19 00:56:25,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:25,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:56:26,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:56:26,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:56:26,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:56:26,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (1/1) ... [2024-11-19 00:56:26,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:56:26,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:56:26,037 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 00:56:26,040 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 00:56:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:56:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:56:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:56:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:56:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:56:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:56:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 00:56:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-19 00:56:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-19 00:56:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-19 00:56:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-19 00:56:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-19 00:56:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-19 00:56:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-19 00:56:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-19 00:56:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-19 00:56:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-19 00:56:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-19 00:56:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:56:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:56:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:56:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:56:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:56:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:56:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 00:56:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 00:56:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 00:56:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 00:56:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 00:56:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 00:56:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 00:56:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 00:56:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 00:56:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 00:56:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 00:56:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:56:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:56:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:56:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:56:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:56:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 00:56:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-19 00:56:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-19 00:56:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-19 00:56:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-19 00:56:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-19 00:56:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-19 00:56:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-19 00:56:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-19 00:56:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-19 00:56:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-19 00:56:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-19 00:56:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:56:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:56:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:56:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:56:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:56:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:56:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 00:56:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 00:56:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 00:56:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 00:56:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 00:56:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 00:56:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 00:56:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 00:56:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 00:56:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 00:56:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 00:56:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:56:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:56:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:56:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:56:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-11-19 00:56:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:56:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 00:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 00:56:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 00:56:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 00:56:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 00:56:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 00:56:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 00:56:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 00:56:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 00:56:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:56:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:56:26,319 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:56:26,320 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:56:26,818 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-11-19 00:56:26,819 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:56:26,834 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:56:26,835 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:56:26,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:56:26 BoogieIcfgContainer [2024-11-19 00:56:26,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:56:26,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:56:26,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:56:26,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:56:26,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:56:25" (1/3) ... [2024-11-19 00:56:26,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46389416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:56:26, skipping insertion in model container [2024-11-19 00:56:26,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:56:25" (2/3) ... [2024-11-19 00:56:26,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46389416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:56:26, skipping insertion in model container [2024-11-19 00:56:26,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:56:26" (3/3) ... [2024-11-19 00:56:26,844 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-40.i [2024-11-19 00:56:26,880 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:56:26,881 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:56:26,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:56:26,952 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;@32304655, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:56:26,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:56:26,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 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 00:56:26,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:56:26,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:56:26,976 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] [2024-11-19 00:56:26,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:56:26,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:56:26,983 INFO L85 PathProgramCache]: Analyzing trace with hash -894541318, now seen corresponding path program 1 times [2024-11-19 00:56:26,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:56:26,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447125940] [2024-11-19 00:56:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:26,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:56:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:27,469 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 00:56:27,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:56:27,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447125940] [2024-11-19 00:56:27,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447125940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:56:27,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366881773] [2024-11-19 00:56:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:27,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:56:27,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:56:27,476 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 00:56:27,478 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 00:56:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:27,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:56:27,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:56:27,863 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 00:56:27,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:56:27,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366881773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:56:27,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:56:27,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:56:27,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135174999] [2024-11-19 00:56:27,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:56:27,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:56:27,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:56:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:56:27,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:56:27,907 INFO L87 Difference]: Start difference. First operand has 113 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 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 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 00:56:27,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:56:27,942 INFO L93 Difference]: Finished difference Result 219 states and 347 transitions. [2024-11-19 00:56:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:56:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 150 [2024-11-19 00:56:27,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:56:27,956 INFO L225 Difference]: With dead ends: 219 [2024-11-19 00:56:27,956 INFO L226 Difference]: Without dead ends: 109 [2024-11-19 00:56:27,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 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 00:56:27,965 INFO L432 NwaCegarLoop]: 160 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, 160 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 00:56:27,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:56:27,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-19 00:56:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-19 00:56:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 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 00:56:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 160 transitions. [2024-11-19 00:56:28,018 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 160 transitions. Word has length 150 [2024-11-19 00:56:28,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:56:28,018 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 160 transitions. [2024-11-19 00:56:28,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 00:56:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 160 transitions. [2024-11-19 00:56:28,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:56:28,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:56:28,022 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] [2024-11-19 00:56:28,037 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 00:56:28,223 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 00:56:28,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:56:28,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:56:28,224 INFO L85 PathProgramCache]: Analyzing trace with hash -29253812, now seen corresponding path program 1 times [2024-11-19 00:56:28,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:56:28,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194262456] [2024-11-19 00:56:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:28,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:56:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:56:28,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:56:28,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194262456] [2024-11-19 00:56:28,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194262456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:56:28,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461087837] [2024-11-19 00:56:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:28,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:56:28,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:56:28,686 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 00:56:28,687 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 00:56:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:28,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:56:28,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:56:29,047 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 00:56:29,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:56:29,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461087837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:56:29,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:56:29,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 00:56:29,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532164241] [2024-11-19 00:56:29,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:56:29,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:56:29,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:56:29,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:56:29,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:56:29,051 INFO L87 Difference]: Start difference. First operand 109 states and 160 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 00:56:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:56:29,107 INFO L93 Difference]: Finished difference Result 218 states and 321 transitions. [2024-11-19 00:56:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:56:29,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 150 [2024-11-19 00:56:29,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:56:29,110 INFO L225 Difference]: With dead ends: 218 [2024-11-19 00:56:29,110 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 00:56:29,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:56:29,112 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:56:29,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 460 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:56:29,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 00:56:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-19 00:56:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 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 00:56:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2024-11-19 00:56:29,131 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 150 [2024-11-19 00:56:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:56:29,135 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2024-11-19 00:56:29,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 00:56:29,136 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2024-11-19 00:56:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:56:29,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:56:29,138 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] [2024-11-19 00:56:29,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 00:56:29,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-19 00:56:29,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:56:29,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:56:29,340 INFO L85 PathProgramCache]: Analyzing trace with hash 650804558, now seen corresponding path program 1 times [2024-11-19 00:56:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:56:29,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802001932] [2024-11-19 00:56:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:29,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:56:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:56:29,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:56:29,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802001932] [2024-11-19 00:56:29,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802001932] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:56:29,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4669746] [2024-11-19 00:56:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:29,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:56:29,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:56:29,645 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 00:56:29,647 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 00:56:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:29,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:56:29,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:56:29,971 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 00:56:29,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:56:29,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4669746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:56:29,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:56:29,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 00:56:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983602193] [2024-11-19 00:56:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:56:29,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:56:29,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:56:29,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:56:29,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:56:29,976 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 00:56:30,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:56:30,013 INFO L93 Difference]: Finished difference Result 222 states and 325 transitions. [2024-11-19 00:56:30,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:56:30,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 150 [2024-11-19 00:56:30,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:56:30,018 INFO L225 Difference]: With dead ends: 222 [2024-11-19 00:56:30,021 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 00:56:30,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:56:30,023 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:56:30,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:56:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 00:56:30,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-19 00:56:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 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 00:56:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 164 transitions. [2024-11-19 00:56:30,041 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 164 transitions. Word has length 150 [2024-11-19 00:56:30,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:56:30,042 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 164 transitions. [2024-11-19 00:56:30,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 00:56:30,042 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 164 transitions. [2024-11-19 00:56:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:56:30,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:56:30,046 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] [2024-11-19 00:56:30,067 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 00:56:30,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:56:30,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:56:30,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:56:30,248 INFO L85 PathProgramCache]: Analyzing trace with hash 652651600, now seen corresponding path program 1 times [2024-11-19 00:56:30,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:56:30,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091030077] [2024-11-19 00:56:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:30,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:56:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:56:30,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:56:30,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091030077] [2024-11-19 00:56:30,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091030077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:56:30,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681694187] [2024-11-19 00:56:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:30,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:56:30,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:56:30,518 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 00:56:30,519 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 00:56:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:30,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:56:30,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:56:30,823 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 00:56:30,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:56:30,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681694187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:56:30,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:56:30,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-19 00:56:30,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686244853] [2024-11-19 00:56:30,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:56:30,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:56:30,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:56:30,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:56:30,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:56:30,827 INFO L87 Difference]: Start difference. First operand 113 states and 164 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 00:56:30,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:56:30,857 INFO L93 Difference]: Finished difference Result 225 states and 328 transitions. [2024-11-19 00:56:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:56:30,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 150 [2024-11-19 00:56:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:56:30,862 INFO L225 Difference]: With dead ends: 225 [2024-11-19 00:56:30,862 INFO L226 Difference]: Without dead ends: 115 [2024-11-19 00:56:30,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 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 00:56:30,866 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 463 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 00:56:30,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:56:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-19 00:56:30,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-19 00:56:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 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 00:56:30,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2024-11-19 00:56:30,880 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 166 transitions. Word has length 150 [2024-11-19 00:56:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:56:30,881 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 166 transitions. [2024-11-19 00:56:30,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 00:56:30,882 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 166 transitions. [2024-11-19 00:56:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:56:30,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:56:30,886 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] [2024-11-19 00:56:30,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 00:56:31,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:56:31,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:56:31,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:56:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash -466754015, now seen corresponding path program 1 times [2024-11-19 00:56:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:56:31,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378249075] [2024-11-19 00:56:31,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:31,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:56:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 27 proven. 27 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:56:37,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:56:37,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378249075] [2024-11-19 00:56:37,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378249075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:56:37,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497762486] [2024-11-19 00:56:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:56:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:56:37,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:56:37,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:56:37,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 00:56:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:56:37,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-19 00:56:37,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:56:37,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 00:56:38,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 00:56:40,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 59 [2024-11-19 00:56:40,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 44 [2024-11-19 00:56:40,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2024-11-19 00:56:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 11 proven. 465 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-19 00:56:40,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:57:12,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1192 treesize of output 904 [2024-11-19 00:57:13,005 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 00:57:13,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497762486] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 00:57:13,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 00:57:13,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 17] total 34 [2024-11-19 00:57:13,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426281788] [2024-11-19 00:57:13,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:13,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:57:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:13,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:57:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1017, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 00:57:13,008 INFO L87 Difference]: Start difference. First operand 115 states and 166 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 00:57:16,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:16,937 INFO L93 Difference]: Finished difference Result 291 states and 418 transitions. [2024-11-19 00:57:16,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:57:16,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 153 [2024-11-19 00:57:16,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:16,940 INFO L225 Difference]: With dead ends: 291 [2024-11-19 00:57:16,940 INFO L226 Difference]: Without dead ends: 179 [2024-11-19 00:57:16,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=117, Invalid=1143, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 00:57:16,942 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 142 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:16,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 749 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 00:57:16,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-19 00:57:16,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 176. [2024-11-19 00:57:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 150 states have (on average 1.3733333333333333) internal successors, (206), 151 states have internal predecessors, (206), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 00:57:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 252 transitions. [2024-11-19 00:57:16,968 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 252 transitions. Word has length 153 [2024-11-19 00:57:16,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:16,968 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 252 transitions. [2024-11-19 00:57:16,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 00:57:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 252 transitions. [2024-11-19 00:57:16,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:57:16,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:16,974 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] [2024-11-19 00:57:16,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 00:57:17,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:57:17,175 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:17,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1487822369, now seen corresponding path program 1 times [2024-11-19 00:57:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:17,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466793469] [2024-11-19 00:57:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:17,991 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 00:57:17,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:17,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466793469] [2024-11-19 00:57:17,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466793469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:17,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:57:17,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:57:17,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148853489] [2024-11-19 00:57:17,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:17,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:57:17,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:17,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:57:17,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:57:17,993 INFO L87 Difference]: Start difference. First operand 176 states and 252 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:57:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:18,444 INFO L93 Difference]: Finished difference Result 433 states and 618 transitions. [2024-11-19 00:57:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:57:18,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-19 00:57:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:18,452 INFO L225 Difference]: With dead ends: 433 [2024-11-19 00:57:18,452 INFO L226 Difference]: Without dead ends: 260 [2024-11-19 00:57:18,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:57:18,454 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 435 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:18,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 984 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:57:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-19 00:57:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2024-11-19 00:57:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 218 states have (on average 1.353211009174312) internal successors, (295), 220 states have internal predecessors, (295), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 00:57:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 365 transitions. [2024-11-19 00:57:18,484 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 365 transitions. Word has length 153 [2024-11-19 00:57:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:18,485 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 365 transitions. [2024-11-19 00:57:18,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:57:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 365 transitions. [2024-11-19 00:57:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:57:18,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:18,487 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] [2024-11-19 00:57:18,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:57:18,488 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:18,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash -270039051, now seen corresponding path program 1 times [2024-11-19 00:57:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:18,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684427336] [2024-11-19 00:57:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:18,703 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:57:18,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:18,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684427336] [2024-11-19 00:57:18,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684427336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:57:18,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690215368] [2024-11-19 00:57:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:18,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:57:18,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:57:18,706 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:57:18,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 00:57:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:18,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 00:57:18,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:57:19,022 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 00:57:19,022 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:57:19,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690215368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:19,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:57:19,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-19 00:57:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823439428] [2024-11-19 00:57:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:19,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:57:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:19,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:57:19,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:57:19,024 INFO L87 Difference]: Start difference. First operand 257 states and 365 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (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 00:57:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:19,060 INFO L93 Difference]: Finished difference Result 520 states and 739 transitions. [2024-11-19 00:57:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:57:19,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (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 153 [2024-11-19 00:57:19,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:19,066 INFO L225 Difference]: With dead ends: 520 [2024-11-19 00:57:19,066 INFO L226 Difference]: Without dead ends: 266 [2024-11-19 00:57:19,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:57:19,068 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:19,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 613 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:57:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-19 00:57:19,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2024-11-19 00:57:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 221 states have (on average 1.3484162895927603) internal successors, (298), 223 states have internal predecessors, (298), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 00:57:19,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 368 transitions. [2024-11-19 00:57:19,093 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 368 transitions. Word has length 153 [2024-11-19 00:57:19,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:19,094 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 368 transitions. [2024-11-19 00:57:19,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (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 00:57:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 368 transitions. [2024-11-19 00:57:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:57:19,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:19,096 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] [2024-11-19 00:57:19,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 00:57:19,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:57:19,298 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:19,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:19,298 INFO L85 PathProgramCache]: Analyzing trace with hash -607302625, now seen corresponding path program 1 times [2024-11-19 00:57:19,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:19,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600716691] [2024-11-19 00:57:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:19,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:20,352 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 00:57:20,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600716691] [2024-11-19 00:57:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600716691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:20,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:57:20,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:57:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25088201] [2024-11-19 00:57:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:20,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:57:20,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:20,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:57:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:57:20,355 INFO L87 Difference]: Start difference. First operand 260 states and 368 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-19 00:57:20,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:20,829 INFO L93 Difference]: Finished difference Result 548 states and 773 transitions. [2024-11-19 00:57:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:57:20,830 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 153 [2024-11-19 00:57:20,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:20,832 INFO L225 Difference]: With dead ends: 548 [2024-11-19 00:57:20,833 INFO L226 Difference]: Without dead ends: 291 [2024-11-19 00:57:20,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:57:20,835 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 364 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:20,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1261 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:57:20,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-19 00:57:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 288. [2024-11-19 00:57:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 238 states have (on average 1.3235294117647058) internal successors, (315), 241 states have internal predecessors, (315), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-19 00:57:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 405 transitions. [2024-11-19 00:57:20,870 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 405 transitions. Word has length 153 [2024-11-19 00:57:20,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:20,871 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 405 transitions. [2024-11-19 00:57:20,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-19 00:57:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 405 transitions. [2024-11-19 00:57:20,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:57:20,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:20,872 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] [2024-11-19 00:57:20,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:57:20,872 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:20,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:20,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1628370979, now seen corresponding path program 1 times [2024-11-19 00:57:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:20,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772412445] [2024-11-19 00:57:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:26,165 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 00:57:26,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:26,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772412445] [2024-11-19 00:57:26,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772412445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:26,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:57:26,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:57:26,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819027638] [2024-11-19 00:57:26,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:26,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:57:26,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:26,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:57:26,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:57:26,168 INFO L87 Difference]: Start difference. First operand 288 states and 405 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 00:57:29,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:29,822 INFO L93 Difference]: Finished difference Result 887 states and 1241 transitions. [2024-11-19 00:57:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:57:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 153 [2024-11-19 00:57:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:29,827 INFO L225 Difference]: With dead ends: 887 [2024-11-19 00:57:29,828 INFO L226 Difference]: Without dead ends: 623 [2024-11-19 00:57:29,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:57:29,829 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 185 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:29,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1129 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 00:57:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-19 00:57:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 616. [2024-11-19 00:57:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 521 states have (on average 1.3320537428023032) internal successors, (694), 527 states have internal predecessors, (694), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 78 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-19 00:57:29,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 862 transitions. [2024-11-19 00:57:29,891 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 862 transitions. Word has length 153 [2024-11-19 00:57:29,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:29,892 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 862 transitions. [2024-11-19 00:57:29,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 00:57:29,892 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 862 transitions. [2024-11-19 00:57:29,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 00:57:29,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:29,894 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] [2024-11-19 00:57:29,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:57:29,894 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:29,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash 636600898, now seen corresponding path program 1 times [2024-11-19 00:57:29,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:29,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281984540] [2024-11-19 00:57:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:29,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:30,089 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 00:57:30,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:30,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281984540] [2024-11-19 00:57:30,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281984540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:30,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:57:30,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:57:30,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101672627] [2024-11-19 00:57:30,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:30,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:57:30,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:57:30,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:57:30,091 INFO L87 Difference]: Start difference. First operand 616 states and 862 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (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 00:57:30,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:30,319 INFO L93 Difference]: Finished difference Result 1387 states and 1936 transitions. [2024-11-19 00:57:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:57:30,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (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 154 [2024-11-19 00:57:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:30,327 INFO L225 Difference]: With dead ends: 1387 [2024-11-19 00:57:30,327 INFO L226 Difference]: Without dead ends: 799 [2024-11-19 00:57:30,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:57:30,330 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 130 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:30,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 762 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:57:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-19 00:57:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 705. [2024-11-19 00:57:30,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 575 states have (on average 1.3043478260869565) internal successors, (750), 581 states have internal predecessors, (750), 115 states have call successors, (115), 14 states have call predecessors, (115), 14 states have return successors, (115), 109 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-19 00:57:30,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 980 transitions. [2024-11-19 00:57:30,399 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 980 transitions. Word has length 154 [2024-11-19 00:57:30,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:30,400 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 980 transitions. [2024-11-19 00:57:30,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (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 00:57:30,400 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 980 transitions. [2024-11-19 00:57:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:57:30,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:30,402 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] [2024-11-19 00:57:30,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:57:30,403 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:30,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1930819998, now seen corresponding path program 1 times [2024-11-19 00:57:30,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:30,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612755328] [2024-11-19 00:57:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:30,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:36,630 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 00:57:36,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:36,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612755328] [2024-11-19 00:57:36,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612755328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:36,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:57:36,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:57:36,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382851839] [2024-11-19 00:57:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:36,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:57:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:36,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:57:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:57:36,632 INFO L87 Difference]: Start difference. First operand 705 states and 980 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 00:57:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:41,349 INFO L93 Difference]: Finished difference Result 1048 states and 1455 transitions. [2024-11-19 00:57:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:57:41,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 155 [2024-11-19 00:57:41,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:41,355 INFO L225 Difference]: With dead ends: 1048 [2024-11-19 00:57:41,355 INFO L226 Difference]: Without dead ends: 750 [2024-11-19 00:57:41,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:57:41,357 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 71 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:41,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1084 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:57:41,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-19 00:57:41,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 747. [2024-11-19 00:57:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 612 states have (on average 1.3022875816993464) internal successors, (797), 619 states have internal predecessors, (797), 119 states have call successors, (119), 15 states have call predecessors, (119), 15 states have return successors, (119), 112 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-19 00:57:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1035 transitions. [2024-11-19 00:57:41,434 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1035 transitions. Word has length 155 [2024-11-19 00:57:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:41,435 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1035 transitions. [2024-11-19 00:57:41,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 00:57:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1035 transitions. [2024-11-19 00:57:41,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:57:41,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:41,438 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] [2024-11-19 00:57:41,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:57:41,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:41,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:41,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1737050499, now seen corresponding path program 1 times [2024-11-19 00:57:41,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:41,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095333544] [2024-11-19 00:57:41,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:41,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:57:41,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:41,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095333544] [2024-11-19 00:57:41,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095333544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:57:41,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874300190] [2024-11-19 00:57:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:57:41,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:57:41,633 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:57:41,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 00:57:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:41,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 00:57:41,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:57:41,942 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 00:57:41,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:57:41,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874300190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:41,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:57:41,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2024-11-19 00:57:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089944546] [2024-11-19 00:57:41,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:41,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:57:41,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:41,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:57:41,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:57:41,945 INFO L87 Difference]: Start difference. First operand 747 states and 1035 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 00:57:42,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:42,039 INFO L93 Difference]: Finished difference Result 1498 states and 2073 transitions. [2024-11-19 00:57:42,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:57:42,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 155 [2024-11-19 00:57:42,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:42,045 INFO L225 Difference]: With dead ends: 1498 [2024-11-19 00:57:42,045 INFO L226 Difference]: Without dead ends: 779 [2024-11-19 00:57:42,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:57:42,049 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:42,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 761 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:57:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-19 00:57:42,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 755. [2024-11-19 00:57:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 620 states have (on average 1.2983870967741935) internal successors, (805), 627 states have internal predecessors, (805), 119 states have call successors, (119), 15 states have call predecessors, (119), 15 states have return successors, (119), 112 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-19 00:57:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1043 transitions. [2024-11-19 00:57:42,142 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1043 transitions. Word has length 155 [2024-11-19 00:57:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:42,143 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 1043 transitions. [2024-11-19 00:57:42,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 00:57:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1043 transitions. [2024-11-19 00:57:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:57:42,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:42,145 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] [2024-11-19 00:57:42,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 00:57:42,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:57:42,346 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:42,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:42,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1002087614, now seen corresponding path program 1 times [2024-11-19 00:57:42,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:42,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926379350] [2024-11-19 00:57:42,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:42,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:42,514 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 00:57:42,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:57:42,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926379350] [2024-11-19 00:57:42,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926379350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:57:42,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:57:42,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:57:42,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609239058] [2024-11-19 00:57:42,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:57:42,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:57:42,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:57:42,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:57:42,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:57:42,517 INFO L87 Difference]: Start difference. First operand 755 states and 1043 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (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 00:57:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:57:42,738 INFO L93 Difference]: Finished difference Result 1537 states and 2122 transitions. [2024-11-19 00:57:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:57:42,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (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 155 [2024-11-19 00:57:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:57:42,743 INFO L225 Difference]: With dead ends: 1537 [2024-11-19 00:57:42,743 INFO L226 Difference]: Without dead ends: 810 [2024-11-19 00:57:42,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:57:42,745 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 138 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:57:42,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 684 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:57:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-19 00:57:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 771. [2024-11-19 00:57:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 629 states have (on average 1.287758346581876) internal successors, (810), 636 states have internal predecessors, (810), 125 states have call successors, (125), 16 states have call predecessors, (125), 16 states have return successors, (125), 118 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-19 00:57:42,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1060 transitions. [2024-11-19 00:57:42,816 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1060 transitions. Word has length 155 [2024-11-19 00:57:42,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:57:42,817 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1060 transitions. [2024-11-19 00:57:42,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (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 00:57:42,817 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1060 transitions. [2024-11-19 00:57:42,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 00:57:42,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:57:42,819 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] [2024-11-19 00:57:42,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:57:42,820 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:57:42,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:57:42,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1570163810, now seen corresponding path program 1 times [2024-11-19 00:57:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:57:42,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96741082] [2024-11-19 00:57:42,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:42,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:57:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 00:57:42,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869508171] [2024-11-19 00:57:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:57:42,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:57:42,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:57:42,927 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:57:42,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 00:57:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:57:43,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-19 00:57:43,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:57:44,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 5 [2024-11-19 00:57:44,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1