./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.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-80.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 f77e8c9f93ca54d94eb905f2ce3291ad784a62b1b2b1f919a3731c7174a0c943 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:00:51,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:00:51,204 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:00:51,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:00:51,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:00:51,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:00:51,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:00:51,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:00:51,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:00:51,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:00:51,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:00:51,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:00:51,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:00:51,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:00:51,233 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:00:51,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:00:51,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:00:51,234 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:00:51,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:00:51,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:00:51,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:00:51,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:00:51,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:00:51,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:00:51,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:00:51,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:00:51,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:00:51,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:00:51,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:00:51,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:00:51,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:00:51,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:00:51,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:00:51,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:00:51,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:00:51,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:00:51,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:00:51,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:00:51,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:00:51,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:00:51,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:00:51,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:00:51,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f77e8c9f93ca54d94eb905f2ce3291ad784a62b1b2b1f919a3731c7174a0c943 [2024-11-19 01:00:51,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:00:51,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:00:51,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:00:51,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:00:51,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:00:51,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i [2024-11-19 01:00:52,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:00:52,859 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:00:52,859 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i [2024-11-19 01:00:52,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51246457c/5bd22ed093d046e78e705486309bfa3a/FLAGd41997d88 [2024-11-19 01:00:53,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51246457c/5bd22ed093d046e78e705486309bfa3a [2024-11-19 01:00:53,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:00:53,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:00:53,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:00:53,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:00:53,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:00:53,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a94739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53, skipping insertion in model container [2024-11-19 01:00:53,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:00:53,432 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-80.i[916,929] [2024-11-19 01:00:53,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:00:53,507 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:00:53,517 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-80.i[916,929] [2024-11-19 01:00:53,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:00:53,569 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:00:53,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53 WrapperNode [2024-11-19 01:00:53,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:00:53,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:00:53,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:00:53,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:00:53,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,594 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,629 INFO L138 Inliner]: procedures = 29, calls = 244, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 811 [2024-11-19 01:00:53,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:00:53,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:00:53,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:00:53,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:00:53,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,671 INFO L175 MemorySlicer]: Split 199 memory accesses to 18 slices as follows [2, 3, 11, 8, 12, 13, 6, 14, 5, 22, 22, 14, 16, 8, 8, 3, 23, 9]. 12 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-19 01:00:53,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:00:53,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:00:53,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:00:53,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:00:53,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (1/1) ... [2024-11-19 01:00:53,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:00:53,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:00:53,756 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 01:00:53,761 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 01:00:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:00:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:00:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:00:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 01:00:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 01:00:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 01:00:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 01:00:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 01:00:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 01:00:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 01:00:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 01:00:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-19 01:00:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 01:00:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 01:00:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 01:00:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 01:00:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 01:00:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 01:00:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-19 01:00:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-19 01:00:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-19 01:00:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-19 01:00:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-19 01:00:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#17 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 01:00:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-19 01:00:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-19 01:00:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-19 01:00:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-19 01:00:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-19 01:00:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-19 01:00:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-19 01:00:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-19 01:00:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-19 01:00:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-19 01:00:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-19 01:00:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#17 [2024-11-19 01:00:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:00:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:00:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 01:00:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 01:00:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 01:00:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 01:00:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 01:00:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 01:00:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 01:00:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 01:00:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 01:00:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 01:00:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 01:00:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 01:00:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 01:00:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 01:00:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 01:00:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-19 01:00:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 01:00:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-19 01:00:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#17 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:00:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 01:00:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 01:00:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 01:00:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 01:00:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 01:00:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 01:00:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 01:00:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:00:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:00:53,988 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:00:53,990 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:00:54,565 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-11-19 01:00:54,565 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:00:54,580 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:00:54,581 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:00:54,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:00:54 BoogieIcfgContainer [2024-11-19 01:00:54,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:00:54,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:00:54,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:00:54,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:00:54,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:00:53" (1/3) ... [2024-11-19 01:00:54,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f356deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:00:54, skipping insertion in model container [2024-11-19 01:00:54,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:00:53" (2/3) ... [2024-11-19 01:00:54,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f356deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:00:54, skipping insertion in model container [2024-11-19 01:00:54,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:00:54" (3/3) ... [2024-11-19 01:00:54,589 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-80.i [2024-11-19 01:00:54,602 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:00:54,602 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:00:54,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:00:54,668 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;@28f34467, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:00:54,668 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:00:54,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:54,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 01:00:54,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:54,687 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:54,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:54,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:54,692 INFO L85 PathProgramCache]: Analyzing trace with hash 329443271, now seen corresponding path program 1 times [2024-11-19 01:00:54,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:54,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478210534] [2024-11-19 01:00:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:54,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 01:00:55,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:00:55,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478210534] [2024-11-19 01:00:55,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478210534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:00:55,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040977381] [2024-11-19 01:00:55,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:55,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:55,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:00:55,016 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 01:00:55,017 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 01:00:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:55,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:00:55,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:00:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 01:00:55,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:00:55,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040977381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:00:55,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:00:55,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:00:55,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960206162] [2024-11-19 01:00:55,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:00:55,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:00:55,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:00:55,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:00:55,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:00:55,405 INFO L87 Difference]: Start difference. First operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:00:55,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:00:55,432 INFO L93 Difference]: Finished difference Result 301 states and 469 transitions. [2024-11-19 01:00:55,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:00:55,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-19 01:00:55,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:00:55,441 INFO L225 Difference]: With dead ends: 301 [2024-11-19 01:00:55,441 INFO L226 Difference]: Without dead ends: 150 [2024-11-19 01:00:55,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 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 01:00:55,446 INFO L432 NwaCegarLoop]: 222 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, 222 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 01:00:55,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:00:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-19 01:00:55,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-19 01:00:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 131 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-11-19 01:00:55,488 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 153 [2024-11-19 01:00:55,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:00:55,489 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-11-19 01:00:55,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:00:55,489 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-11-19 01:00:55,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 01:00:55,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:55,492 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:55,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 01:00:55,693 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 01:00:55,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:55,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:55,694 INFO L85 PathProgramCache]: Analyzing trace with hash 545041713, now seen corresponding path program 1 times [2024-11-19 01:00:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:55,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421396591] [2024-11-19 01:00:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:55,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:00:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:00:56,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421396591] [2024-11-19 01:00:56,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421396591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:00:56,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:00:56,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:00:56,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805722536] [2024-11-19 01:00:56,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:00:56,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:00:56,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:00:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:00:56,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:00:56,019 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:00:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:00:56,062 INFO L93 Difference]: Finished difference Result 299 states and 444 transitions. [2024-11-19 01:00:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:00:56,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-19 01:00:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:00:56,065 INFO L225 Difference]: With dead ends: 299 [2024-11-19 01:00:56,066 INFO L226 Difference]: Without dead ends: 152 [2024-11-19 01:00:56,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:00:56,069 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 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 01:00:56,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:00:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-19 01:00:56,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-19 01:00:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 133 states have internal predecessors, (190), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:56,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2024-11-19 01:00:56,086 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 153 [2024-11-19 01:00:56,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:00:56,088 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2024-11-19 01:00:56,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:00:56,088 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2024-11-19 01:00:56,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 01:00:56,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:56,092 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:56,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:00:56,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:56,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:56,093 INFO L85 PathProgramCache]: Analyzing trace with hash -114489809, now seen corresponding path program 1 times [2024-11-19 01:00:56,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:56,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59036755] [2024-11-19 01:00:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:56,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 01:00:56,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:00:56,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59036755] [2024-11-19 01:00:56,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59036755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:00:56,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383542928] [2024-11-19 01:00:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:56,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:56,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:00:56,357 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 01:00:56,358 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 01:00:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:56,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 01:00:56,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:00:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:00:56,664 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:00:56,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383542928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:00:56,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:00:56,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 01:00:56,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940991073] [2024-11-19 01:00:56,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:00:56,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:00:56,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:00:56,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:00:56,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:00:56,668 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:56,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:00:56,697 INFO L93 Difference]: Finished difference Result 304 states and 449 transitions. [2024-11-19 01:00:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:00:56,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-19 01:00:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:00:56,701 INFO L225 Difference]: With dead ends: 304 [2024-11-19 01:00:56,703 INFO L226 Difference]: Without dead ends: 155 [2024-11-19 01:00:56,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 01:00:56,704 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 646 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 01:00:56,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 646 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:00:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-19 01:00:56,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 154. [2024-11-19 01:00:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 226 transitions. [2024-11-19 01:00:56,719 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 226 transitions. Word has length 153 [2024-11-19 01:00:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:00:56,720 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 226 transitions. [2024-11-19 01:00:56,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:56,721 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 226 transitions. [2024-11-19 01:00:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 01:00:56,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:56,725 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:56,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:00:56,925 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,SelfDestructingSolverStorable2 [2024-11-19 01:00:56,926 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:56,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:56,927 INFO L85 PathProgramCache]: Analyzing trace with hash 565568561, now seen corresponding path program 1 times [2024-11-19 01:00:56,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:56,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909797533] [2024-11-19 01:00:56,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:56,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 01:00:57,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:00:57,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909797533] [2024-11-19 01:00:57,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909797533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:00:57,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328592902] [2024-11-19 01:00:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:57,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:57,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:00:57,127 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 01:00:57,128 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 01:00:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:57,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 01:00:57,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:00:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:00:57,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:00:57,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328592902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:00:57,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:00:57,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 01:00:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422906530] [2024-11-19 01:00:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:00:57,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:00:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:00:57,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:00:57,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:00:57,403 INFO L87 Difference]: Start difference. First operand 154 states and 226 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:57,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:00:57,424 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-11-19 01:00:57,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:00:57,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-19 01:00:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:00:57,426 INFO L225 Difference]: With dead ends: 308 [2024-11-19 01:00:57,426 INFO L226 Difference]: Without dead ends: 157 [2024-11-19 01:00:57,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 01:00:57,428 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:00:57,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 647 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:00:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-19 01:00:57,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2024-11-19 01:00:57,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:57,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2024-11-19 01:00:57,445 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 153 [2024-11-19 01:00:57,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:00:57,447 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2024-11-19 01:00:57,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:57,447 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2024-11-19 01:00:57,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 01:00:57,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:57,448 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:57,468 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 01:00:57,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:57,649 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:57,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1954391373, now seen corresponding path program 1 times [2024-11-19 01:00:57,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:57,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311608778] [2024-11-19 01:00:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:57,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 01:00:57,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:00:57,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311608778] [2024-11-19 01:00:57,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311608778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:00:57,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721074612] [2024-11-19 01:00:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:57,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:57,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:00:57,836 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 01:00:57,837 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 01:00:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:58,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 01:00:58,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:00:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:00:58,117 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:00:58,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721074612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:00:58,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:00:58,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 01:00:58,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297823548] [2024-11-19 01:00:58,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:00:58,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:00:58,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:00:58,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:00:58,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:00:58,119 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:58,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:00:58,139 INFO L93 Difference]: Finished difference Result 312 states and 457 transitions. [2024-11-19 01:00:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:00:58,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-19 01:00:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:00:58,141 INFO L225 Difference]: With dead ends: 312 [2024-11-19 01:00:58,141 INFO L226 Difference]: Without dead ends: 159 [2024-11-19 01:00:58,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 01:00:58,142 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 649 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 01:00:58,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:00:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-19 01:00:58,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-11-19 01:00:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.410071942446043) internal successors, (196), 139 states have internal predecessors, (196), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 230 transitions. [2024-11-19 01:00:58,150 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 230 transitions. Word has length 153 [2024-11-19 01:00:58,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:00:58,150 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 230 transitions. [2024-11-19 01:00:58,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:58,151 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 230 transitions. [2024-11-19 01:00:58,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 01:00:58,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:58,152 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:58,166 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 01:00:58,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:58,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:58,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1952544331, now seen corresponding path program 1 times [2024-11-19 01:00:58,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:58,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961380243] [2024-11-19 01:00:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 01:00:58,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:00:58,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961380243] [2024-11-19 01:00:58,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961380243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:00:58,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772772807] [2024-11-19 01:00:58,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:58,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:58,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:00:58,521 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 01:00:58,522 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 01:00:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:58,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 01:00:58,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:00:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:00:58,817 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:00:58,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772772807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:00:58,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:00:58,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-19 01:00:58,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361979918] [2024-11-19 01:00:58,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:00:58,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:00:58,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:00:58,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:00:58,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:00:58,819 INFO L87 Difference]: Start difference. First operand 158 states and 230 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:00:58,841 INFO L93 Difference]: Finished difference Result 315 states and 460 transitions. [2024-11-19 01:00:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:00:58,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-19 01:00:58,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:00:58,843 INFO L225 Difference]: With dead ends: 315 [2024-11-19 01:00:58,843 INFO L226 Difference]: Without dead ends: 160 [2024-11-19 01:00:58,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 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 01:00:58,844 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 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 01:00:58,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:00:58,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-19 01:00:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-19 01:00:58,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 141 states have (on average 1.4042553191489362) internal successors, (198), 141 states have internal predecessors, (198), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 232 transitions. [2024-11-19 01:00:58,850 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 232 transitions. Word has length 153 [2024-11-19 01:00:58,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:00:58,851 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 232 transitions. [2024-11-19 01:00:58,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 232 transitions. [2024-11-19 01:00:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 01:00:58,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:58,852 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:58,867 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 01:00:59,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:00:59,053 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:59,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash -616592, now seen corresponding path program 1 times [2024-11-19 01:00:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917982996] [2024-11-19 01:00:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:59,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:00:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:00:59,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:00:59,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917982996] [2024-11-19 01:00:59,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917982996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:00:59,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:00:59,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:00:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024472330] [2024-11-19 01:00:59,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:00:59,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:00:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:00:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:00:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:00:59,415 INFO L87 Difference]: Start difference. First operand 160 states and 232 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:59,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:00:59,458 INFO L93 Difference]: Finished difference Result 321 states and 468 transitions. [2024-11-19 01:00:59,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:00:59,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-19 01:00:59,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:00:59,459 INFO L225 Difference]: With dead ends: 321 [2024-11-19 01:00:59,459 INFO L226 Difference]: Without dead ends: 164 [2024-11-19 01:00:59,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:00:59,460 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 2 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:00:59,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 636 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:00:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-19 01:00:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 163. [2024-11-19 01:00:59,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 144 states have (on average 1.4027777777777777) internal successors, (202), 144 states have internal predecessors, (202), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:00:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 236 transitions. [2024-11-19 01:00:59,465 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 236 transitions. Word has length 155 [2024-11-19 01:00:59,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:00:59,465 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 236 transitions. [2024-11-19 01:00:59,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:00:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 236 transitions. [2024-11-19 01:00:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 01:00:59,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:00:59,467 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:59,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:00:59,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:00:59,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:00:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1806054926, now seen corresponding path program 1 times [2024-11-19 01:00:59,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:00:59,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388281260] [2024-11-19 01:00:59,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:00:59,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:00:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat