./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/ofuf_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_5.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 dbf8943cb9f9a3b213e9817cc53efcf4d89e0e525f47b2351825c8c29bc65e71 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:09:21,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:09:21,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:09:21,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:09:21,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:09:21,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:09:21,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:09:21,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:09:21,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:09:21,832 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:09:21,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:09:21,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:09:21,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:09:21,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:09:21,833 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:09:21,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:09:21,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:09:21,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:09:21,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:09:21,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:09:21,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:09:21,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:09:21,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:09:21,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:09:21,839 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:09:21,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:09:21,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:09:21,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:09:21,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:09:21,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:09:21,840 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:09:21,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:09:21,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:09:21,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:09:21,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:09:21,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:09:21,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:09:21,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:09:21,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:09:21,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:09:21,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:09:21,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:09:21,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbf8943cb9f9a3b213e9817cc53efcf4d89e0e525f47b2351825c8c29bc65e71 [2024-11-08 14:09:22,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:09:22,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:09:22,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:09:22,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:09:22,109 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:09:22,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/ofuf_5.c [2024-11-08 14:09:23,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:09:23,519 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:09:23,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/ofuf_5.c [2024-11-08 14:09:23,532 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9fe90f3/b20478abf689487faafa6f73841f2f3b/FLAG63148c239 [2024-11-08 14:09:23,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9fe90f3/b20478abf689487faafa6f73841f2f3b [2024-11-08 14:09:23,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:09:23,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:09:23,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:09:23,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:09:23,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:09:23,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d91bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23, skipping insertion in model container [2024-11-08 14:09:23,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:09:23,817 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_5.c[11314,11327] [2024-11-08 14:09:23,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:09:23,828 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:09:23,871 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_5.c[11314,11327] [2024-11-08 14:09:23,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:09:23,890 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:09:23,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23 WrapperNode [2024-11-08 14:09:23,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:09:23,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:09:23,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:09:23,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:09:23,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,945 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 457 [2024-11-08 14:09:23,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:09:23,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:09:23,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:09:23,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:09:23,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,993 INFO L175 MemorySlicer]: Split 85 memory accesses to 15 slices as follows [2, 5, 3, 5, 1, 5, 1, 3, 7, 11, 2, 6, 4, 12, 18]. 21 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [2, 5, 3, 1, 1, 5, 1, 3, 7, 4, 2, 4, 0, 7, 0]. The 5 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 1, 1, 1, 0]. [2024-11-08 14:09:23,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:23,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:24,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:24,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:24,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:24,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:24,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:09:24,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:09:24,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:09:24,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:09:24,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (1/1) ... [2024-11-08 14:09:24,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:09:24,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:09:24,090 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) [2024-11-08 14:09:24,096 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 [2024-11-08 14:09:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 14:09:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 14:09:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 14:09:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 14:09:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 14:09:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 14:09:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 14:09:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 14:09:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-08 14:09:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-08 14:09:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-08 14:09:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-08 14:09:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-08 14:09:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-08 14:09:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-08 14:09:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:09:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2024-11-08 14:09:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2024-11-08 14:09:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 14:09:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 14:09:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 14:09:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 14:09:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 14:09:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 14:09:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 14:09:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-08 14:09:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-08 14:09:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-08 14:09:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-08 14:09:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-08 14:09:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-08 14:09:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-08 14:09:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-08 14:09:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-08 14:09:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-08 14:09:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 14:09:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 14:09:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 14:09:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 14:09:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 14:09:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 14:09:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 14:09:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 14:09:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-08 14:09:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-08 14:09:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-08 14:09:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-08 14:09:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-08 14:09:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:09:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:09:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2024-11-08 14:09:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2024-11-08 14:09:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 14:09:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:09:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:09:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2024-11-08 14:09:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2024-11-08 14:09:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 14:09:24,361 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:09:24,363 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:09:24,807 INFO L? ?]: Removed 153 outVars from TransFormulas that were not future-live. [2024-11-08 14:09:24,807 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:09:24,817 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:09:24,817 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-08 14:09:24,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:09:24 BoogieIcfgContainer [2024-11-08 14:09:24,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:09:24,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:09:24,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:09:24,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:09:24,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:09:23" (1/3) ... [2024-11-08 14:09:24,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c22e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:09:24, skipping insertion in model container [2024-11-08 14:09:24,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:09:23" (2/3) ... [2024-11-08 14:09:24,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c22e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:09:24, skipping insertion in model container [2024-11-08 14:09:24,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:09:24" (3/3) ... [2024-11-08 14:09:24,825 INFO L112 eAbstractionObserver]: Analyzing ICFG ofuf_5.c [2024-11-08 14:09:24,838 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:09:24,839 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:09:24,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:09:24,903 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;@23669fb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:09:24,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:09:24,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 93 states have (on average 1.6021505376344085) internal successors, (149), 94 states have internal predecessors, (149), 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) [2024-11-08 14:09:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 14:09:24,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:09:24,916 INFO L215 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, 1, 1, 1] [2024-11-08 14:09:24,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:09:24,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:09:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2004280954, now seen corresponding path program 1 times [2024-11-08 14:09:24,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:09:24,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363475183] [2024-11-08 14:09:24,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:09:24,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:09:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:09:25,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 14:09:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:09:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:09:25,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:09:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363475183] [2024-11-08 14:09:25,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363475183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:09:25,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:09:25,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 14:09:25,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306924072] [2024-11-08 14:09:25,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:09:25,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:09:25,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:09:25,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:09:25,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 14:09:25,458 INFO L87 Difference]: Start difference. First operand has 106 states, 93 states have (on average 1.6021505376344085) internal successors, (149), 94 states have internal predecessors, (149), 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 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-08 14:09:25,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:09:25,529 INFO L93 Difference]: Finished difference Result 205 states and 328 transitions. [2024-11-08 14:09:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:09:25,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 30 [2024-11-08 14:09:25,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:09:25,537 INFO L225 Difference]: With dead ends: 205 [2024-11-08 14:09:25,540 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 14:09:25,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 14:09:25,548 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:09:25,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:09:25,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 14:09:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 14:09:25,567 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) [2024-11-08 14:09:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 14:09:25,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2024-11-08 14:09:25,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:09:25,569 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 14:09:25,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-08 14:09:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 14:09:25,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 14:09:25,572 INFO L782 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 14:09:25,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:09:25,576 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 14:09:25,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 14:09:25,601 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 14:09:25,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 02:09:25 BoogieIcfgContainer [2024-11-08 14:09:25,620 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 14:09:25,620 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 14:09:25,623 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 14:09:25,623 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 14:09:25,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:09:24" (3/4) ... [2024-11-08 14:09:25,626 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 14:09:25,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2024-11-08 14:09:25,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2024-11-08 14:09:25,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2024-11-08 14:09:25,638 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-11-08 14:09:25,638 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-08 14:09:25,639 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-08 14:09:25,639 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 14:09:25,640 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 14:09:25,640 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 14:09:25,767 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 14:09:25,767 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 14:09:25,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 14:09:25,768 INFO L158 Benchmark]: Toolchain (without parser) took 2221.54ms. Allocated memory was 151.0MB in the beginning and 188.7MB in the end (delta: 37.7MB). Free memory was 108.3MB in the beginning and 96.3MB in the end (delta: 12.0MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-08 14:09:25,768 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 14:09:25,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.18ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 88.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 14:09:25,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.26ms. Allocated memory is still 151.0MB. Free memory was 88.1MB in the beginning and 84.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 14:09:25,769 INFO L158 Benchmark]: Boogie Preprocessor took 90.47ms. Allocated memory is still 151.0MB. Free memory was 84.5MB in the beginning and 77.6MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 14:09:25,769 INFO L158 Benchmark]: RCFGBuilder took 780.40ms. Allocated memory is still 151.0MB. Free memory was 77.6MB in the beginning and 71.1MB in the end (delta: 6.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-08 14:09:25,769 INFO L158 Benchmark]: TraceAbstraction took 801.25ms. Allocated memory was 151.0MB in the beginning and 188.7MB in the end (delta: 37.7MB). Free memory was 70.4MB in the beginning and 107.8MB in the end (delta: -37.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2024-11-08 14:09:25,770 INFO L158 Benchmark]: Witness Printer took 147.16ms. Allocated memory is still 188.7MB. Free memory was 107.8MB in the beginning and 96.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 14:09:25,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.18ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 88.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.26ms. Allocated memory is still 151.0MB. Free memory was 88.1MB in the beginning and 84.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.47ms. Allocated memory is still 151.0MB. Free memory was 84.5MB in the beginning and 77.6MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 780.40ms. Allocated memory is still 151.0MB. Free memory was 77.6MB in the beginning and 71.1MB in the end (delta: 6.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * TraceAbstraction took 801.25ms. Allocated memory was 151.0MB in the beginning and 188.7MB in the end (delta: 37.7MB). Free memory was 70.4MB in the beginning and 107.8MB in the end (delta: -37.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 147.16ms. Allocated memory is still 188.7MB. Free memory was 107.8MB in the beginning and 96.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, 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, 447 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 297 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 150 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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! [2024-11-08 14:09:25,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE