./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a15bafc8303311b2bd7bb6d250a0c3e0c3fd8acbc6e1c59dc33f3d3e662f861 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:35:14,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:35:14,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:35:14,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:35:14,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:35:14,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:35:14,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:35:14,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:35:14,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:35:14,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:35:14,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:35:14,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:35:14,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:35:14,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:35:14,131 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:35:14,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:35:14,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:35:14,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:35:14,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:35:14,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:35:14,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:35:14,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:35:14,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:35:14,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:35:14,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:35:14,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:35:14,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:35:14,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:35:14,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:35:14,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:35:14,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:35:14,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:35:14,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:35:14,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:35:14,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:35:14,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:35:14,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:35:14,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:35:14,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:35:14,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:35:14,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:35:14,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:35:14,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a15bafc8303311b2bd7bb6d250a0c3e0c3fd8acbc6e1c59dc33f3d3e662f861 [2024-11-19 00:35:14,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:35:14,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:35:14,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:35:14,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:35:14,357 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:35:14,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i [2024-11-19 00:35:15,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:35:15,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:35:15,859 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i [2024-11-19 00:35:15,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b1bc81b/c75b265e323b452cb31fad5bf97ba4b6/FLAGa94d4d189 [2024-11-19 00:35:15,881 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b1bc81b/c75b265e323b452cb31fad5bf97ba4b6 [2024-11-19 00:35:15,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:35:15,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:35:15,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:35:15,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:35:15,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:35:15,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:35:15" (1/1) ... [2024-11-19 00:35:15,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226a47eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:15, skipping insertion in model container [2024-11-19 00:35:15,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:35:15" (1/1) ... [2024-11-19 00:35:15,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:35:16,045 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i[916,929] [2024-11-19 00:35:16,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:35:16,103 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:35:16,114 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i[916,929] [2024-11-19 00:35:16,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:35:16,182 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:35:16,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16 WrapperNode [2024-11-19 00:35:16,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:35:16,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:35:16,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:35:16,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:35:16,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,243 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 475 [2024-11-19 00:35:16,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:35:16,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:35:16,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:35:16,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:35:16,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,287 INFO L175 MemorySlicer]: Split 120 memory accesses to 8 slices as follows [2, 16, 14, 15, 27, 17, 10, 19]. 23 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 2, 2, 1, 3, 3, 2, 3]. The 17 writes are split as follows [0, 2, 2, 1, 3, 3, 2, 4]. [2024-11-19 00:35:16,287 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:35:16,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:35:16,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:35:16,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:35:16,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (1/1) ... [2024-11-19 00:35:16,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:35:16,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:35:16,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:35:16,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:35:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:35:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:35:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:35:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:35:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:35:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:35:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 00:35:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-19 00:35:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-19 00:35:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:35:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:35:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:35:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:35:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:35:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:35:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 00:35:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 00:35:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:35:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:35:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:35:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:35:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:35:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 00:35:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-19 00:35:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-19 00:35:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:35:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:35:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:35:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:35:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:35:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:35:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 00:35:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 00:35:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:35:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:35:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:35:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:35:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:35:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 00:35:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-19 00:35:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-19 00:35:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:35:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:35:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:35:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:35:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:35:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:35:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:35:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:35:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 00:35:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 00:35:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:35:16,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:35:16,547 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:35:16,549 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:35:16,973 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-11-19 00:35:16,973 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:35:16,986 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:35:16,989 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:35:16,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:35:16 BoogieIcfgContainer [2024-11-19 00:35:16,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:35:16,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:35:16,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:35:16,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:35:16,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:35:15" (1/3) ... [2024-11-19 00:35:16,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4453bb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:35:16, skipping insertion in model container [2024-11-19 00:35:16,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:35:16" (2/3) ... [2024-11-19 00:35:16,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4453bb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:35:16, skipping insertion in model container [2024-11-19 00:35:16,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:35:16" (3/3) ... [2024-11-19 00:35:16,997 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-40.i [2024-11-19 00:35:17,013 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:35:17,014 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:35:17,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:35:17,072 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;@1a0e5137, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:35:17,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:35:17,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:35:17,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:35:17,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:35:17,087 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:35:17,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:35:17,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:35:17,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1897959538, now seen corresponding path program 1 times [2024-11-19 00:35:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:35:17,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880314448] [2024-11-19 00:35:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:35:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:35:17,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:35:17,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880314448] [2024-11-19 00:35:17,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880314448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:35:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408924766] [2024-11-19 00:35:17,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:17,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:35:17,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:35:17,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:35:17,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:35:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:17,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:35:17,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:35:17,771 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:35:17,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:35:17,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408924766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:35:17,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:35:17,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:35:17,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645710430] [2024-11-19 00:35:17,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:35:17,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:35:17,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:35:17,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:35:17,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:35:17,802 INFO L87 Difference]: Start difference. First operand has 113 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:35:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:35:17,825 INFO L93 Difference]: Finished difference Result 219 states and 347 transitions. [2024-11-19 00:35:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:35:17,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-19 00:35:17,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:35:17,833 INFO L225 Difference]: With dead ends: 219 [2024-11-19 00:35:17,833 INFO L226 Difference]: Without dead ends: 109 [2024-11-19 00:35:17,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:35:17,838 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:35:17,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:35:17,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-19 00:35:17,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-19 00:35:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:35:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 160 transitions. [2024-11-19 00:35:17,873 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 160 transitions. Word has length 150 [2024-11-19 00:35:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:35:17,874 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 160 transitions. [2024-11-19 00:35:17,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:35:17,874 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 160 transitions. [2024-11-19 00:35:17,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:35:17,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:35:17,877 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:35:17,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:35:18,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:35:18,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:35:18,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:35:18,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1396978404, now seen corresponding path program 1 times [2024-11-19 00:35:18,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:35:18,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000446027] [2024-11-19 00:35:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:18,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:35:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:35:18,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:35:18,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000446027] [2024-11-19 00:35:18,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000446027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:35:18,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094824255] [2024-11-19 00:35:18,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:18,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:35:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:35:18,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:35:18,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:35:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:18,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:35:18,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:35:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:35:18,764 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:35:18,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094824255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:35:18,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:35:18,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 00:35:18,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876784298] [2024-11-19 00:35:18,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:35:18,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:35:18,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:35:18,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:35:18,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:35:18,769 INFO L87 Difference]: Start difference. First operand 109 states and 160 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:35:18,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:35:18,819 INFO L93 Difference]: Finished difference Result 218 states and 321 transitions. [2024-11-19 00:35:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:35:18,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:35:18,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:35:18,822 INFO L225 Difference]: With dead ends: 218 [2024-11-19 00:35:18,822 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 00:35:18,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:35:18,823 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:35:18,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 460 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:35:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 00:35:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-19 00:35:18,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:35:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2024-11-19 00:35:18,839 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 150 [2024-11-19 00:35:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:35:18,844 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2024-11-19 00:35:18,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:35:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2024-11-19 00:35:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:35:18,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:35:18,846 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:35:18,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:35:19,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-19 00:35:19,048 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:35:19,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:35:19,049 INFO L85 PathProgramCache]: Analyzing trace with hash -716920034, now seen corresponding path program 1 times [2024-11-19 00:35:19,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:35:19,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305814757] [2024-11-19 00:35:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:19,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:35:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:35:19,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:35:19,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305814757] [2024-11-19 00:35:19,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305814757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:35:19,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170474684] [2024-11-19 00:35:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:19,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:35:19,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:35:19,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:35:19,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:35:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:19,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:35:19,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:35:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:35:19,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:35:19,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170474684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:35:19,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:35:19,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 00:35:19,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580564370] [2024-11-19 00:35:19,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:35:19,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:35:19,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:35:19,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:35:19,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:35:19,514 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:35:19,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:35:19,544 INFO L93 Difference]: Finished difference Result 222 states and 325 transitions. [2024-11-19 00:35:19,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:35:19,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:35:19,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:35:19,549 INFO L225 Difference]: With dead ends: 222 [2024-11-19 00:35:19,549 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 00:35:19,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:35:19,551 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:35:19,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:35:19,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 00:35:19,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-19 00:35:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:35:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 164 transitions. [2024-11-19 00:35:19,568 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 164 transitions. Word has length 150 [2024-11-19 00:35:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:35:19,568 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 164 transitions. [2024-11-19 00:35:19,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:35:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 164 transitions. [2024-11-19 00:35:19,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:35:19,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:35:19,570 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:35:19,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 00:35:19,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:35:19,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:35:19,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:35:19,772 INFO L85 PathProgramCache]: Analyzing trace with hash -715072992, now seen corresponding path program 1 times [2024-11-19 00:35:19,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:35:19,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221051806] [2024-11-19 00:35:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:19,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:35:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:35:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:35:19,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221051806] [2024-11-19 00:35:19,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221051806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:35:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502514209] [2024-11-19 00:35:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:19,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:35:19,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:35:19,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:35:19,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:35:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:35:20,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 00:35:20,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:35:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:35:20,210 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:35:20,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502514209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:35:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:35:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-19 00:35:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310542591] [2024-11-19 00:35:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:35:20,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:35:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:35:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:35:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:35:20,213 INFO L87 Difference]: Start difference. First operand 113 states and 164 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:35:20,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:35:20,234 INFO L93 Difference]: Finished difference Result 225 states and 328 transitions. [2024-11-19 00:35:20,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:35:20,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:35:20,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:35:20,237 INFO L225 Difference]: With dead ends: 225 [2024-11-19 00:35:20,237 INFO L226 Difference]: Without dead ends: 115 [2024-11-19 00:35:20,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:35:20,244 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:35:20,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:35:20,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-19 00:35:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-19 00:35:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:35:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2024-11-19 00:35:20,253 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 166 transitions. Word has length 150 [2024-11-19 00:35:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:35:20,253 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 166 transitions. [2024-11-19 00:35:20,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:35:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 166 transitions. [2024-11-19 00:35:20,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:35:20,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:35:20,256 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:35:20,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 00:35:20,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:35:20,457 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:35:20,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:35:20,458 INFO L85 PathProgramCache]: Analyzing trace with hash 4662865, now seen corresponding path program 1 times [2024-11-19 00:35:20,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:35:20,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289885693] [2024-11-19 00:35:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:35:20,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:35:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat