./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/loop-industry-pattern/ofuf_2.c -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 a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 19:48:26,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 19:48:26,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 19:48:26,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 19:48:26,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 19:48:26,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 19:48:26,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 19:48:26,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 19:48:26,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 19:48:26,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 19:48:26,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 19:48:26,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 19:48:26,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 19:48:26,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 19:48:26,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 19:48:26,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 19:48:26,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 19:48:26,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 19:48:26,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 19:48:26,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 19:48:26,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 19:48:26,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 19:48:26,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 19:48:26,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 19:48:26,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 19:48:26,178 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 19:48:26,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 19:48:26,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 19:48:26,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 19:48:26,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 19:48:26,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 19:48:26,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 19:48:26,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 19:48:26,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 19:48:26,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 19:48:26,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 19:48:26,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 19:48:26,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 19:48:26,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 19:48:26,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 19:48:26,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 19:48:26,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 19:48:26,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 [2024-11-11 19:48:26,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 19:48:26,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 19:48:26,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 19:48:26,400 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 19:48:26,400 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 19:48:26,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2024-11-11 19:48:27,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 19:48:27,744 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 19:48:27,744 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2024-11-11 19:48:27,751 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3945ac6ec/e1d54495cb89476691ce37e18443ea00/FLAGcd9f9b516 [2024-11-11 19:48:27,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3945ac6ec/e1d54495cb89476691ce37e18443ea00 [2024-11-11 19:48:27,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 19:48:27,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 19:48:27,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 19:48:27,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 19:48:27,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 19:48:27,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:48:27" (1/1) ... [2024-11-11 19:48:27,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d83fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:27, skipping insertion in model container [2024-11-11 19:48:27,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:48:27" (1/1) ... [2024-11-11 19:48:27,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 19:48:27,992 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/loop-industry-pattern/ofuf_2.c[11342,11355] [2024-11-11 19:48:27,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 19:48:28,003 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 19:48:28,070 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/loop-industry-pattern/ofuf_2.c[11342,11355] [2024-11-11 19:48:28,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 19:48:28,094 INFO L204 MainTranslator]: Completed translation [2024-11-11 19:48:28,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28 WrapperNode [2024-11-11 19:48:28,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 19:48:28,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 19:48:28,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 19:48:28,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 19:48:28,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,152 INFO L138 Inliner]: procedures = 29, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2024-11-11 19:48:28,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 19:48:28,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 19:48:28,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 19:48:28,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 19:48:28,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,169 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,195 INFO L175 MemorySlicer]: Split 83 memory accesses to 15 slices as follows [2, 5, 3, 5, 3, 7, 2, 4, 6, 12, 18, 1, 1, 5, 9]. 22 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [2, 5, 3, 5, 3, 7, 2, 0, 4, 7, 0, 1, 1, 1, 4]. The 5 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 2]. [2024-11-11 19:48:28,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 19:48:28,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 19:48:28,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 19:48:28,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 19:48:28,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (1/1) ... [2024-11-11 19:48:28,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 19:48:28,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:48:28,278 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) [2024-11-11 19:48:28,282 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 [2024-11-11 19:48:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-11 19:48:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-11 19:48:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-11 19:48:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-11 19:48:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-11 19:48:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-11 19:48:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-11 19:48:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-11 19:48:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 19:48:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2024-11-11 19:48:28,324 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2024-11-11 19:48:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-11 19:48:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-11 19:48:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-11 19:48:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-11 19:48:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-11 19:48:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-11 19:48:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-11 19:48:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-11 19:48:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-11 19:48:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-11 19:48:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-11 19:48:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-11 19:48:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-11 19:48:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-11 19:48:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-11 19:48:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 19:48:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 19:48:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 19:48:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 19:48:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 19:48:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-11 19:48:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-11 19:48:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-11 19:48:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 19:48:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 19:48:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 19:48:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 19:48:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-11 19:48:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-11 19:48:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 19:48:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 19:48:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 19:48:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 19:48:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 19:48:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2024-11-11 19:48:28,333 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2024-11-11 19:48:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-11 19:48:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 19:48:28,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 19:48:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2024-11-11 19:48:28,335 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2024-11-11 19:48:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 19:48:28,521 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 19:48:28,523 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 19:48:28,962 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2024-11-11 19:48:28,962 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 19:48:28,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 19:48:28,978 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-11 19:48:28,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:48:28 BoogieIcfgContainer [2024-11-11 19:48:28,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 19:48:28,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 19:48:28,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 19:48:28,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 19:48:28,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 07:48:27" (1/3) ... [2024-11-11 19:48:28,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0a4c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:48:28, skipping insertion in model container [2024-11-11 19:48:28,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:48:28" (2/3) ... [2024-11-11 19:48:28,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0a4c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:48:28, skipping insertion in model container [2024-11-11 19:48:28,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:48:28" (3/3) ... [2024-11-11 19:48:28,986 INFO L112 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2024-11-11 19:48:28,999 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 19:48:28,999 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 19:48:29,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 19:48:29,050 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;@79c905d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 19:48:29,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 19:48:29,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 92 states have internal predecessors, (146), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-11 19:48:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-11 19:48:29,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:48:29,060 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 19:48:29,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:48:29,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:48:29,065 INFO L85 PathProgramCache]: Analyzing trace with hash 717532578, now seen corresponding path program 1 times [2024-11-11 19:48:29,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:48:29,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931459733] [2024-11-11 19:48:29,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:48:29,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:48:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:48:29,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 19:48:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:48:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-11 19:48:29,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:48:29,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931459733] [2024-11-11 19:48:29,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931459733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 19:48:29,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 19:48:29,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 19:48:29,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990122747] [2024-11-11 19:48:29,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 19:48:29,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 19:48:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 19:48:29,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 19:48:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 19:48:29,312 INFO L87 Difference]: Start difference. First operand has 104 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 92 states have internal predecessors, (146), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 19:48:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 19:48:29,378 INFO L93 Difference]: Finished difference Result 203 states and 324 transitions. [2024-11-11 19:48:29,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 19:48:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-11 19:48:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 19:48:29,403 INFO L225 Difference]: With dead ends: 203 [2024-11-11 19:48:29,404 INFO L226 Difference]: Without dead ends: 98 [2024-11-11 19:48:29,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 19:48:29,414 INFO L435 NwaCegarLoop]: 153 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, 153 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 [2024-11-11 19:48:29,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 19:48:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-11 19:48:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-11 19:48:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.5232558139534884) internal successors, (131), 87 states have internal predecessors, (131), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-11 19:48:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 146 transitions. [2024-11-11 19:48:29,447 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 146 transitions. Word has length 27 [2024-11-11 19:48:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 19:48:29,448 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 146 transitions. [2024-11-11 19:48:29,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 19:48:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 146 transitions. [2024-11-11 19:48:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-11 19:48:29,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:48:29,449 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 19:48:29,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 19:48:29,450 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:48:29,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:48:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1176831398, now seen corresponding path program 1 times [2024-11-11 19:48:29,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:48:29,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790720990] [2024-11-11 19:48:29,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:48:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:48:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:48:29,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 19:48:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:48:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-11 19:48:29,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:48:29,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790720990] [2024-11-11 19:48:29,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790720990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 19:48:29,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 19:48:29,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 19:48:29,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373233159] [2024-11-11 19:48:29,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 19:48:29,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 19:48:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 19:48:29,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 19:48:29,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 19:48:29,617 INFO L87 Difference]: Start difference. First operand 98 states and 146 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 19:48:29,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 19:48:29,633 INFO L93 Difference]: Finished difference Result 98 states and 146 transitions. [2024-11-11 19:48:29,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 19:48:29,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-11 19:48:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 19:48:29,634 INFO L225 Difference]: With dead ends: 98 [2024-11-11 19:48:29,634 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 19:48:29,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 19:48:29,635 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 19:48:29,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 19:48:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 19:48:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 19:48:29,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 19:48:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 19:48:29,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2024-11-11 19:48:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 19:48:29,637 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 19:48:29,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 19:48:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 19:48:29,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 19:48:29,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 19:48:29,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 19:48:29,641 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 19:48:29,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-11 19:48:29,671 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 19:48:29,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 07:48:29 BoogieIcfgContainer [2024-11-11 19:48:29,695 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 19:48:29,696 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 19:48:29,696 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 19:48:29,696 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 19:48:29,697 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:48:28" (3/4) ... [2024-11-11 19:48:29,699 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-11 19:48:29,702 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2024-11-11 19:48:29,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2024-11-11 19:48:29,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2024-11-11 19:48:29,714 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-11-11 19:48:29,714 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-11 19:48:29,715 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-11 19:48:29,715 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-11 19:48:29,716 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 19:48:29,716 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 19:48:29,817 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 19:48:29,817 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-11 19:48:29,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 19:48:29,818 INFO L158 Benchmark]: Toolchain (without parser) took 2053.47ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 81.0MB in the beginning and 140.1MB in the end (delta: -59.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-11 19:48:29,818 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 106.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 19:48:29,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.03ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 122.4MB in the end (delta: -41.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-11-11 19:48:29,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.56ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 122.3MB in the beginning and 192.1MB in the end (delta: -69.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-11 19:48:29,819 INFO L158 Benchmark]: Boogie Preprocessor took 89.79ms. Allocated memory is still 224.4MB. Free memory was 192.1MB in the beginning and 184.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-11 19:48:29,819 INFO L158 Benchmark]: RCFGBuilder took 728.45ms. Allocated memory is still 224.4MB. Free memory was 184.7MB in the beginning and 134.4MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-11 19:48:29,819 INFO L158 Benchmark]: TraceAbstraction took 715.66ms. Allocated memory is still 224.4MB. Free memory was 133.4MB in the beginning and 150.6MB in the end (delta: -17.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 19:48:29,820 INFO L158 Benchmark]: Witness Printer took 121.72ms. Allocated memory is still 224.4MB. Free memory was 150.6MB in the beginning and 140.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-11 19:48:29,821 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 106.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.03ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 122.4MB in the end (delta: -41.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.56ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 122.3MB in the beginning and 192.1MB in the end (delta: -69.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.79ms. Allocated memory is still 224.4MB. Free memory was 192.1MB in the beginning and 184.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 728.45ms. Allocated memory is still 224.4MB. Free memory was 184.7MB in the beginning and 134.4MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 715.66ms. Allocated memory is still 224.4MB. Free memory was 133.4MB in the beginning and 150.6MB in the end (delta: -17.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 121.72ms. Allocated memory is still 224.4MB. Free memory was 150.6MB in the beginning and 140.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 463]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 437 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 296 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 193]: Procedure Contract for Id_MCDC_89 Derived contract for procedure Id_MCDC_89. Ensures: (((((((((((Id_MCDC_104 == \old(Id_MCDC_104)) && (Id_MCDC_105 == \old(Id_MCDC_105))) && (Id_MCDC_106 == \old(Id_MCDC_106))) && (Id_MCDC_107 == \old(Id_MCDC_107))) && (Id_MCDC_108 == \old(Id_MCDC_108))) && (Id_MCDC_109 == \old(Id_MCDC_109))) && (Id_MCDC_110 == \old(Id_MCDC_110))) && (Id_MCDC_111 == \old(Id_MCDC_111))) && (Id_MCDC_112 == \old(Id_MCDC_112))) && (Id_MCDC_113 == \old(Id_MCDC_113))) && (Id_MCDC_114 == \old(Id_MCDC_114))) - ProcedureContractResult [Line: 9]: Procedure Contract for avoid_zero Derived contract for procedure avoid_zero. Ensures: (((((((((((Id_MCDC_104 == \old(Id_MCDC_104)) && (Id_MCDC_105 == \old(Id_MCDC_105))) && (Id_MCDC_106 == \old(Id_MCDC_106))) && (Id_MCDC_107 == \old(Id_MCDC_107))) && (Id_MCDC_108 == \old(Id_MCDC_108))) && (Id_MCDC_109 == \old(Id_MCDC_109))) && (Id_MCDC_110 == \old(Id_MCDC_110))) && (Id_MCDC_111 == \old(Id_MCDC_111))) && (Id_MCDC_112 == \old(Id_MCDC_112))) && (Id_MCDC_113 == \old(Id_MCDC_113))) && (Id_MCDC_114 == \old(Id_MCDC_114))) - ProcedureContractResult [Line: 280]: Procedure Contract for Id_MCDC_95 Derived contract for procedure Id_MCDC_95. Ensures: (((((((((((Id_MCDC_104 == \old(Id_MCDC_104)) && (Id_MCDC_105 == \old(Id_MCDC_105))) && (Id_MCDC_106 == \old(Id_MCDC_106))) && (Id_MCDC_107 == \old(Id_MCDC_107))) && (Id_MCDC_108 == \old(Id_MCDC_108))) && (Id_MCDC_109 == \old(Id_MCDC_109))) && (Id_MCDC_110 == \old(Id_MCDC_110))) && (Id_MCDC_111 == \old(Id_MCDC_111))) && (Id_MCDC_112 == \old(Id_MCDC_112))) && (Id_MCDC_113 == \old(Id_MCDC_113))) && (Id_MCDC_114 == \old(Id_MCDC_114))) RESULT: Ultimate proved your program to be correct! [2024-11-11 19:48:29,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE