./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash baa0361131df5a78c0a8a4c29ba2893696394b78f626b1aa1f97e06e0771e5c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:59:20,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:59:20,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:59:20,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:59:20,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:59:20,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:59:20,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:59:20,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:59:20,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:59:20,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:59:20,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:59:20,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:59:20,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:59:20,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:59:20,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:59:20,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:59:20,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:59:20,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:59:20,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:59:20,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:59:20,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:59:20,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:59:20,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:59:20,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:59:20,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:59:20,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:59:20,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:59:20,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:59:20,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:59:20,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:59:20,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:59:20,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:59:20,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:59:20,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:59:20,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:59:20,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:59:20,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:59:20,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:59:20,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:59:20,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:59:20,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:59:20,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:59:20,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:59:20,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:59:20,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:59:20,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:59:20,322 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:59:20,322 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:59:20,323 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:59:20,323 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:59:20,323 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:59:20,323 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:59:20,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:59:20,324 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:59:20,324 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:59:20,325 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:59:20,325 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:59:20,325 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:59:20,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:59:20,327 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:59:20,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:59:20,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:59:20,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:59:20,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:59:20,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:59:20,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:59:20,329 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:59:20,329 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:59:20,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:59:20,329 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:59:20,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:59:20,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:59:20,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:59:20,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:59:20,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:59:20,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:59:20,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:59:20,332 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:59:20,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:59:20,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:59:20,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:59:20,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:59:20,333 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baa0361131df5a78c0a8a4c29ba2893696394b78f626b1aa1f97e06e0771e5c0 [2021-11-12 22:59:20,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:59:20,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:59:20,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:59:20,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:59:20,690 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:59:20,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-industry-pattern/ofuf_1.c [2021-11-12 22:59:20,790 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/a1c7bd98e/1758562079054bf49c6a602d6bf92027/FLAG3d72b496e [2021-11-12 22:59:21,435 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:59:21,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/sv-benchmarks/c/loop-industry-pattern/ofuf_1.c [2021-11-12 22:59:21,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/a1c7bd98e/1758562079054bf49c6a602d6bf92027/FLAG3d72b496e [2021-11-12 22:59:21,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/a1c7bd98e/1758562079054bf49c6a602d6bf92027 [2021-11-12 22:59:21,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:59:21,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:59:21,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:59:21,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:59:21,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:59:21,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:59:21" (1/1) ... [2021-11-12 22:59:21,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9d7d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:21, skipping insertion in model container [2021-11-12 22:59:21,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:59:21" (1/1) ... [2021-11-12 22:59:21,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:59:21,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:59:22,123 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/sv-benchmarks/c/loop-industry-pattern/ofuf_1.c[11890,11903] [2021-11-12 22:59:22,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:59:22,142 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:59:22,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61e566de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:22, skipping insertion in model container [2021-11-12 22:59:22,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:59:22,143 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:59:22,146 INFO L158 Benchmark]: Toolchain (without parser) took 464.13ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 77.3MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:59:22,147 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 104.9MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:59:22,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.25ms. Allocated memory is still 104.9MB. Free memory was 67.8MB in the beginning and 77.3MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:59:22,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 104.9MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.25ms. Allocated memory is still 104.9MB. Free memory was 67.8MB in the beginning and 77.3MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 429]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash baa0361131df5a78c0a8a4c29ba2893696394b78f626b1aa1f97e06e0771e5c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:59:24,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:59:24,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:59:25,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:59:25,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:59:25,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:59:25,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:59:25,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:59:25,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:59:25,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:59:25,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:59:25,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:59:25,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:59:25,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:59:25,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:59:25,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:59:25,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:59:25,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:59:25,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:59:25,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:59:25,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:59:25,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:59:25,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:59:25,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:59:25,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:59:25,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:59:25,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:59:25,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:59:25,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:59:25,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:59:25,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:59:25,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:59:25,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:59:25,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:59:25,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:59:25,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:59:25,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:59:25,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:59:25,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:59:25,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:59:25,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:59:25,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:59:25,131 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:59:25,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:59:25,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:59:25,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:59:25,134 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:59:25,134 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:59:25,135 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:59:25,135 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:59:25,135 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:59:25,136 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:59:25,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:59:25,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:59:25,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:59:25,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:59:25,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:59:25,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:59:25,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:59:25,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:59:25,140 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:59:25,140 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:59:25,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:59:25,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:59:25,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:59:25,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:59:25,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:59:25,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:59:25,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:59:25,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:59:25,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:59:25,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:59:25,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:59:25,145 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:59:25,145 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:25,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:59:25,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:59:25,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:59:25,147 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baa0361131df5a78c0a8a4c29ba2893696394b78f626b1aa1f97e06e0771e5c0 [2021-11-12 22:59:25,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:59:25,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:59:25,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:59:25,661 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:59:25,662 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:59:25,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-industry-pattern/ofuf_1.c [2021-11-12 22:59:25,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/eda64e876/da1434d730854ee5b480b32317ad5de4/FLAG1d82440b7 [2021-11-12 22:59:26,451 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:59:26,452 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/sv-benchmarks/c/loop-industry-pattern/ofuf_1.c [2021-11-12 22:59:26,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/eda64e876/da1434d730854ee5b480b32317ad5de4/FLAG1d82440b7 [2021-11-12 22:59:26,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/data/eda64e876/da1434d730854ee5b480b32317ad5de4 [2021-11-12 22:59:26,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:59:26,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:59:26,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:59:26,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:59:26,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:59:26,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:59:26" (1/1) ... [2021-11-12 22:59:26,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4662d188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:26, skipping insertion in model container [2021-11-12 22:59:26,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:59:26" (1/1) ... [2021-11-12 22:59:26,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:59:26,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:59:27,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/sv-benchmarks/c/loop-industry-pattern/ofuf_1.c[11890,11903] [2021-11-12 22:59:27,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:59:27,286 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:59:27,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:59:27,388 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/sv-benchmarks/c/loop-industry-pattern/ofuf_1.c[11890,11903] [2021-11-12 22:59:27,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:59:27,404 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:59:27,532 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/sv-benchmarks/c/loop-industry-pattern/ofuf_1.c[11890,11903] [2021-11-12 22:59:27,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:59:27,580 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:59:27,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27 WrapperNode [2021-11-12 22:59:27,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:59:27,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:59:27,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:59:27,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:59:27,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:59:27,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:59:27,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:59:27,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:59:27,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:59:27,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:59:27,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:59:27,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:59:27,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (1/1) ... [2021-11-12 22:59:27,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:59:27,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:59:27,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:59:27,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:59:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_113 [2021-11-12 22:59:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_113 [2021-11-12 22:59:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:59:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:59:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:59:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:59:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:59:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:59:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:59:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:59:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:59:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:59:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-11-12 22:59:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:59:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:59:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:59:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-11-12 22:59:27,966 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-11-12 22:59:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:59:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:59:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:59:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_107 [2021-11-12 22:59:27,967 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_107 [2021-11-12 22:59:29,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:59:29,466 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-12 22:59:29,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:59:29 BoogieIcfgContainer [2021-11-12 22:59:29,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:59:29,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:59:29,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:59:29,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:59:29,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:59:26" (1/3) ... [2021-11-12 22:59:29,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a68b04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:59:29, skipping insertion in model container [2021-11-12 22:59:29,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:59:27" (2/3) ... [2021-11-12 22:59:29,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a68b04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:59:29, skipping insertion in model container [2021-11-12 22:59:29,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:59:29" (3/3) ... [2021-11-12 22:59:29,479 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_1.c [2021-11-12 22:59:29,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:59:29,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:59:29,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:59:29,560 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:59:29,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:59:29,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 88 states have (on average 1.6022727272727273) internal successors, (141), 89 states have internal predecessors, (141), 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) [2021-11-12 22:59:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:59:29,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:29,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:29,597 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:29,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:29,605 INFO L85 PathProgramCache]: Analyzing trace with hash 555714556, now seen corresponding path program 1 times [2021-11-12 22:59:29,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:29,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462286213] [2021-11-12 22:59:29,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:29,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:29,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:29,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:29,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:59:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:29,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:59:29,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:59:30,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:59:30,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:30,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462286213] [2021-11-12 22:59:30,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462286213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:30,228 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:30,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:59:30,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941206897] [2021-11-12 22:59:30,231 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:30,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:59:30,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:59:30,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:59:30,288 INFO L87 Difference]: Start difference. First operand has 101 states, 88 states have (on average 1.6022727272727273) internal successors, (141), 89 states have internal predecessors, (141), 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 22:59:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:30,338 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2021-11-12 22:59:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:59:30,341 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-12 22:59:30,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:30,353 INFO L225 Difference]: With dead ends: 197 [2021-11-12 22:59:30,353 INFO L226 Difference]: Without dead ends: 95 [2021-11-12 22:59:30,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:59:30,364 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:30,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 3.20ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:59:30,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-12 22:59:30,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-12 22:59:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 84 states have internal predecessors, (126), 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) [2021-11-12 22:59:30,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 141 transitions. [2021-11-12 22:59:30,426 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 141 transitions. Word has length 23 [2021-11-12 22:59:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:30,426 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 141 transitions. [2021-11-12 22:59:30,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 22:59:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 141 transitions. [2021-11-12 22:59:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:59:30,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:30,431 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:59:30,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:30,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:30,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:30,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1353531853, now seen corresponding path program 1 times [2021-11-12 22:59:30,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:30,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864742041] [2021-11-12 22:59:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:30,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:30,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:30,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:30,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:59:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:30,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:30,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:59:31,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:59:31,105 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:31,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864742041] [2021-11-12 22:59:31,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864742041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:31,106 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:31,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:59:31,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674010550] [2021-11-12 22:59:31,106 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:31,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:59:31,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:31,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:59:31,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:59:31,110 INFO L87 Difference]: Start difference. First operand 95 states and 141 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:31,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:31,259 INFO L93 Difference]: Finished difference Result 254 states and 389 transitions. [2021-11-12 22:59:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:59:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2021-11-12 22:59:31,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:31,265 INFO L225 Difference]: With dead ends: 254 [2021-11-12 22:59:31,265 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 22:59:31,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:59:31,269 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 88 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.37ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.27ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:31,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 455 Invalid, 24 Unknown, 0 Unchecked, 7.37ms Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 99.27ms Time] [2021-11-12 22:59:31,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 22:59:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 98. [2021-11-12 22:59:31,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.5) internal successors, (129), 87 states have internal predecessors, (129), 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) [2021-11-12 22:59:31,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 144 transitions. [2021-11-12 22:59:31,292 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 144 transitions. Word has length 27 [2021-11-12 22:59:31,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:31,292 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 144 transitions. [2021-11-12 22:59:31,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 144 transitions. [2021-11-12 22:59:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:59:31,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:31,296 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:59:31,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:31,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:31,515 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:31,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:31,515 INFO L85 PathProgramCache]: Analyzing trace with hash -11156802, now seen corresponding path program 1 times [2021-11-12 22:59:31,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:31,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697622423] [2021-11-12 22:59:31,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:31,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:31,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:31,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:59:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:31,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:31,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:59:31,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:59:32,035 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:32,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697622423] [2021-11-12 22:59:32,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697622423] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:32,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1491115069] [2021-11-12 22:59:32,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:32,041 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:32,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:59:32,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:59:32,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-12 22:59:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:32,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:59:32,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:59:32,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:59:32,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1491115069] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:32,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:59:32,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 12 [2021-11-12 22:59:32,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175665452] [2021-11-12 22:59:32,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:32,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:59:32,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:59:32,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:59:32,597 INFO L87 Difference]: Start difference. First operand 98 states and 144 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:32,764 INFO L93 Difference]: Finished difference Result 177 states and 247 transitions. [2021-11-12 22:59:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:59:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2021-11-12 22:59:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:32,770 INFO L225 Difference]: With dead ends: 177 [2021-11-12 22:59:32,770 INFO L226 Difference]: Without dead ends: 150 [2021-11-12 22:59:32,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:59:32,773 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 111 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.98ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:32,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 597 Invalid, 50 Unknown, 0 Unchecked, 4.98ms Time], IncrementalHoareTripleChecker [21 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 105.34ms Time] [2021-11-12 22:59:32,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-12 22:59:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 130. [2021-11-12 22:59:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 112 states have (on average 1.4464285714285714) internal successors, (162), 112 states have internal predecessors, (162), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-12 22:59:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2021-11-12 22:59:32,816 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 27 [2021-11-12 22:59:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:32,817 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2021-11-12 22:59:32,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:32,818 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2021-11-12 22:59:32,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 22:59:32,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:32,825 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1] [2021-11-12 22:59:32,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:33,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-11-12 22:59:33,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:33,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1781696609, now seen corresponding path program 1 times [2021-11-12 22:59:33,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:33,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9562565] [2021-11-12 22:59:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:33,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:33,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:33,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:59:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:33,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:33,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:59:33,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:59:33,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:33,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9562565] [2021-11-12 22:59:33,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9562565] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:33,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [142432290] [2021-11-12 22:59:33,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:33,900 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:33,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:59:33,904 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:59:33,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-12 22:59:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:34,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:34,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:59:34,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:59:34,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [142432290] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:59:34,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:59:34,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 3] total 10 [2021-11-12 22:59:34,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827302103] [2021-11-12 22:59:34,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:34,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:59:34,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:34,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:59:34,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:34,456 INFO L87 Difference]: Start difference. First operand 130 states and 187 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:34,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:34,498 INFO L93 Difference]: Finished difference Result 206 states and 291 transitions. [2021-11-12 22:59:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:59:34,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2021-11-12 22:59:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:34,503 INFO L225 Difference]: With dead ends: 206 [2021-11-12 22:59:34,503 INFO L226 Difference]: Without dead ends: 142 [2021-11-12 22:59:34,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:34,507 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 15 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.40ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:34,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 1.31ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 31.40ms Time] [2021-11-12 22:59:34,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-12 22:59:34,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 130. [2021-11-12 22:59:34,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 112 states have (on average 1.4375) internal successors, (161), 112 states have internal predecessors, (161), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-12 22:59:34,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 186 transitions. [2021-11-12 22:59:34,546 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 186 transitions. Word has length 33 [2021-11-12 22:59:34,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:34,547 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 186 transitions. [2021-11-12 22:59:34,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:34,547 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 186 transitions. [2021-11-12 22:59:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-12 22:59:34,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:34,550 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1] [2021-11-12 22:59:34,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:34,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:34,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:34,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:34,968 INFO L85 PathProgramCache]: Analyzing trace with hash 926277651, now seen corresponding path program 1 times [2021-11-12 22:59:34,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:34,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200235020] [2021-11-12 22:59:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:34,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:34,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:34,986 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:34,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:59:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:35,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:35,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:59:35,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:35,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:59:35,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:35,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200235020] [2021-11-12 22:59:35,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200235020] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:35,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1488997577] [2021-11-12 22:59:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:35,528 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:35,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:59:35,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:59:35,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 22:59:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:35,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:35,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:59:36,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:36,226 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:59:36,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1488997577] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:59:36,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:59:36,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 3] total 10 [2021-11-12 22:59:36,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574490978] [2021-11-12 22:59:36,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:36,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:59:36,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:36,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:59:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:36,236 INFO L87 Difference]: Start difference. First operand 130 states and 186 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:36,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:36,314 INFO L93 Difference]: Finished difference Result 192 states and 268 transitions. [2021-11-12 22:59:36,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:59:36,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2021-11-12 22:59:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:36,318 INFO L225 Difference]: With dead ends: 192 [2021-11-12 22:59:36,318 INFO L226 Difference]: Without dead ends: 134 [2021-11-12 22:59:36,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:36,320 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 46 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.34ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:36,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 222 Invalid, 12 Unknown, 0 Unchecked, 1.34ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 65.94ms Time] [2021-11-12 22:59:36,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-12 22:59:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 131. [2021-11-12 22:59:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 113 states have (on average 1.4336283185840708) internal successors, (162), 113 states have internal predecessors, (162), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-12 22:59:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 187 transitions. [2021-11-12 22:59:36,362 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 187 transitions. Word has length 34 [2021-11-12 22:59:36,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:36,364 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 187 transitions. [2021-11-12 22:59:36,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:36,367 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 187 transitions. [2021-11-12 22:59:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-12 22:59:36,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:36,371 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:36,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:36,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 22:59:36,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:36,775 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash -328333126, now seen corresponding path program 1 times [2021-11-12 22:59:36,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:36,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556651032] [2021-11-12 22:59:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:36,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:36,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:36,781 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:36,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:59:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:37,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:37,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:59:37,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:37,399 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:59:37,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:37,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556651032] [2021-11-12 22:59:37,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556651032] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:37,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1432919987] [2021-11-12 22:59:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:37,401 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:37,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:59:37,403 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:59:37,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-12 22:59:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:37,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:37,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:59:37,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:59:38,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1432919987] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:38,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826094817] [2021-11-12 22:59:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:38,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:59:38,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:59:38,111 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:59:38,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-12 22:59:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:38,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:59:38,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 22:59:38,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 22:59:38,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826094817] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:38,755 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:59:38,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-12 22:59:38,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469852696] [2021-11-12 22:59:38,756 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:38,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:59:38,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:38,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:59:38,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:38,757 INFO L87 Difference]: Start difference. First operand 131 states and 187 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:38,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:38,776 INFO L93 Difference]: Finished difference Result 152 states and 216 transitions. [2021-11-12 22:59:38,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:59:38,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2021-11-12 22:59:38,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:38,778 INFO L225 Difference]: With dead ends: 152 [2021-11-12 22:59:38,778 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:59:38,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:38,780 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 16 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.29ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.60ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:38,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 287 Invalid, 3 Unknown, 0 Unchecked, 1.29ms Time], IncrementalHoareTripleChecker [2 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 6.60ms Time] [2021-11-12 22:59:38,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:59:38,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:59:38,782 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) [2021-11-12 22:59:38,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:59:38,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2021-11-12 22:59:38,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:38,783 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:59:38,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:59:38,783 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:59:38,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:59:38,786 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:59:38,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:39,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:39,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:39,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:59:39,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 22:59:39,669 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_113EXIT(lines 305 324) no Hoare annotation was computed. [2021-11-12 22:59:39,670 INFO L858 garLoopResultBuilder]: For program point L313(lines 313 320) no Hoare annotation was computed. [2021-11-12 22:59:39,670 INFO L858 garLoopResultBuilder]: For program point L280(lines 280 294) no Hoare annotation was computed. [2021-11-12 22:59:39,670 INFO L858 garLoopResultBuilder]: For program point L313-2(lines 313 320) no Hoare annotation was computed. [2021-11-12 22:59:39,670 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 312) no Hoare annotation was computed. [2021-11-12 22:59:39,671 INFO L854 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: (and (or (not (= (_ bv2 32) |Id_MCDC_113_~Id_MCDC_111#1|)) (= |Id_MCDC_113_#in~Id_MCDC_111#1| (_ bv2 32))) (or (= (_ bv4 32) |Id_MCDC_113_~Id_MCDC_111#1|) (not (= |Id_MCDC_113_#in~Id_MCDC_111#1| (_ bv4 32))))) [2021-11-12 22:59:39,671 INFO L858 garLoopResultBuilder]: For program point L297-1(line 297) no Hoare annotation was computed. [2021-11-12 22:59:39,671 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 490) no Hoare annotation was computed. [2021-11-12 22:59:39,672 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_113Err0ASSERT_VIOLATIONERROR_FUNCTION(line 489) no Hoare annotation was computed. [2021-11-12 22:59:39,672 INFO L854 garLoopResultBuilder]: At program point L487-2(lines 485 492) the Hoare annotation is: (and (= (_ bv1 32) |Id_MCDC_113___VERIFIER_assert_~Id_MCDC_121#1|) (or (not (= (_ bv2 32) |Id_MCDC_113_~Id_MCDC_111#1|)) (= |Id_MCDC_113_#in~Id_MCDC_111#1| (_ bv2 32))) (or (= (_ bv4 32) |Id_MCDC_113_~Id_MCDC_111#1|) (not (= |Id_MCDC_113_#in~Id_MCDC_111#1| (_ bv4 32))))) [2021-11-12 22:59:39,672 INFO L854 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (or (not (= (_ bv2 32) |Id_MCDC_113_~Id_MCDC_111#1|)) (= |Id_MCDC_113_#in~Id_MCDC_111#1| (_ bv2 32))) [2021-11-12 22:59:39,672 INFO L858 garLoopResultBuilder]: For program point L322-1(line 322) no Hoare annotation was computed. [2021-11-12 22:59:39,673 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_113ENTRY(lines 305 324) the Hoare annotation is: true [2021-11-12 22:59:39,673 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_113FINAL(lines 305 324) no Hoare annotation was computed. [2021-11-12 22:59:39,673 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 294) no Hoare annotation was computed. [2021-11-12 22:59:39,673 INFO L854 garLoopResultBuilder]: At program point L315(line 315) the Hoare annotation is: (and (not (= (_ bv2 32) |Id_MCDC_113_~Id_MCDC_111#1|)) (or (= (_ bv4 32) |Id_MCDC_113_~Id_MCDC_111#1|) (not (= |Id_MCDC_113_#in~Id_MCDC_111#1| (_ bv4 32))))) [2021-11-12 22:59:39,673 INFO L858 garLoopResultBuilder]: For program point L315-1(line 315) no Hoare annotation was computed. [2021-11-12 22:59:39,674 INFO L854 garLoopResultBuilder]: At program point L303(lines 274 304) the Hoare annotation is: (or (not (= (_ bv2 32) |Id_MCDC_113_~Id_MCDC_111#1|)) (= |Id_MCDC_113_#in~Id_MCDC_111#1| (_ bv2 32))) [2021-11-12 22:59:39,674 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-11-12 22:59:39,674 INFO L858 garLoopResultBuilder]: For program point L295-1(lines 275 304) no Hoare annotation was computed. [2021-11-12 22:59:39,674 INFO L858 garLoopResultBuilder]: For program point L295-2(lines 295 302) no Hoare annotation was computed. [2021-11-12 22:59:39,675 INFO L858 garLoopResultBuilder]: For program point L341(line 341) no Hoare annotation was computed. [2021-11-12 22:59:39,675 INFO L858 garLoopResultBuilder]: For program point L341-2(line 341) no Hoare annotation was computed. [2021-11-12 22:59:39,675 INFO L858 garLoopResultBuilder]: For program point L341-3(line 341) no Hoare annotation was computed. [2021-11-12 22:59:39,675 INFO L858 garLoopResultBuilder]: For program point L341-5(lines 341 353) no Hoare annotation was computed. [2021-11-12 22:59:39,675 INFO L858 garLoopResultBuilder]: For program point L333-1(lines 333 340) no Hoare annotation was computed. [2021-11-12 22:59:39,676 INFO L854 garLoopResultBuilder]: At program point L333-3(lines 333 340) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,676 INFO L858 garLoopResultBuilder]: For program point L333-4(lines 333 340) no Hoare annotation was computed. [2021-11-12 22:59:39,676 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 22:59:39,676 INFO L858 garLoopResultBuilder]: For program point L383-2(lines 383 421) no Hoare annotation was computed. [2021-11-12 22:59:39,676 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 22:59:39,677 INFO L854 garLoopResultBuilder]: At program point L383-3(lines 383 421) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,677 INFO L858 garLoopResultBuilder]: For program point L433(line 433) no Hoare annotation was computed. [2021-11-12 22:59:39,677 INFO L858 garLoopResultBuilder]: For program point L433-2(lines 433 440) no Hoare annotation was computed. [2021-11-12 22:59:39,677 INFO L861 garLoopResultBuilder]: At program point L450(lines 445 451) the Hoare annotation is: true [2021-11-12 22:59:39,678 INFO L858 garLoopResultBuilder]: For program point L442(line 442) no Hoare annotation was computed. [2021-11-12 22:59:39,678 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 348) no Hoare annotation was computed. [2021-11-12 22:59:39,678 INFO L858 garLoopResultBuilder]: For program point L343-1(lines 341 353) no Hoare annotation was computed. [2021-11-12 22:59:39,678 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 401 418) no Hoare annotation was computed. [2021-11-12 22:59:39,678 INFO L854 garLoopResultBuilder]: At program point L401-3(lines 401 418) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,679 INFO L858 garLoopResultBuilder]: For program point L401-4(lines 401 418) no Hoare annotation was computed. [2021-11-12 22:59:39,679 INFO L861 garLoopResultBuilder]: At program point L443(lines 425 444) the Hoare annotation is: true [2021-11-12 22:59:39,679 INFO L858 garLoopResultBuilder]: For program point L377-2(lines 377 380) no Hoare annotation was computed. [2021-11-12 22:59:39,679 INFO L854 garLoopResultBuilder]: At program point L377-3(lines 377 380) the Hoare annotation is: (and (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) (= (_ bv6144 32) |ULTIMATE.start_Id_MCDC_115_~Id_MCDC_141~0#1|)) [2021-11-12 22:59:39,680 INFO L858 garLoopResultBuilder]: For program point L377-4(lines 357 424) no Hoare annotation was computed. [2021-11-12 22:59:39,680 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 339) no Hoare annotation was computed. [2021-11-12 22:59:39,680 INFO L861 garLoopResultBuilder]: At program point L452(lines 452 484) the Hoare annotation is: true [2021-11-12 22:59:39,680 INFO L854 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,680 INFO L858 garLoopResultBuilder]: For program point L386-1(lines 386 389) no Hoare annotation was computed. [2021-11-12 22:59:39,681 INFO L854 garLoopResultBuilder]: At program point L403(line 403) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,681 INFO L858 garLoopResultBuilder]: For program point L403-1(lines 403 406) no Hoare annotation was computed. [2021-11-12 22:59:39,681 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 332) no Hoare annotation was computed. [2021-11-12 22:59:39,681 INFO L854 garLoopResultBuilder]: At program point L354(lines 325 355) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,681 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 22:59:39,682 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 481) no Hoare annotation was computed. [2021-11-12 22:59:39,682 INFO L854 garLoopResultBuilder]: At program point L396(line 396) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,682 INFO L858 garLoopResultBuilder]: For program point L396-1(lines 396 399) no Hoare annotation was computed. [2021-11-12 22:59:39,682 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 22:59:39,682 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 417) no Hoare annotation was computed. [2021-11-12 22:59:39,683 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 422) no Hoare annotation was computed. [2021-11-12 22:59:39,683 INFO L858 garLoopResultBuilder]: For program point L431-2(lines 431 441) no Hoare annotation was computed. [2021-11-12 22:59:39,683 INFO L861 garLoopResultBuilder]: At program point L431-3(lines 431 441) the Hoare annotation is: true [2021-11-12 22:59:39,683 INFO L861 garLoopResultBuilder]: At program point L431-4(lines 431 441) the Hoare annotation is: true [2021-11-12 22:59:39,684 INFO L854 garLoopResultBuilder]: At program point L423(lines 356 424) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,684 INFO L854 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_117_~Id_MCDC_158~0#1| (_ bv0 32)) [2021-11-12 22:59:39,684 INFO L858 garLoopResultBuilder]: For program point L390-1(lines 390 393) no Hoare annotation was computed. [2021-11-12 22:59:39,684 INFO L858 garLoopResultBuilder]: For program point avoid_zeroEXIT(lines 9 15) no Hoare annotation was computed. [2021-11-12 22:59:39,684 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-11-12 22:59:39,685 INFO L858 garLoopResultBuilder]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2021-11-12 22:59:39,685 INFO L861 garLoopResultBuilder]: At program point avoid_zeroENTRY(lines 9 15) the Hoare annotation is: true [2021-11-12 22:59:39,685 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_107ENTRY(lines 218 273) the Hoare annotation is: true [2021-11-12 22:59:39,685 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 257) no Hoare annotation was computed. [2021-11-12 22:59:39,685 INFO L858 garLoopResultBuilder]: For program point L246(line 246) no Hoare annotation was computed. [2021-11-12 22:59:39,686 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_107FINAL(lines 218 273) no Hoare annotation was computed. [2021-11-12 22:59:39,686 INFO L858 garLoopResultBuilder]: For program point L242(line 242) no Hoare annotation was computed. [2021-11-12 22:59:39,686 INFO L858 garLoopResultBuilder]: For program point L242-2(line 242) no Hoare annotation was computed. [2021-11-12 22:59:39,686 INFO L861 garLoopResultBuilder]: At program point L234(lines 234 250) the Hoare annotation is: true [2021-11-12 22:59:39,687 INFO L858 garLoopResultBuilder]: For program point L259(line 259) no Hoare annotation was computed. [2021-11-12 22:59:39,687 INFO L858 garLoopResultBuilder]: For program point L259-2(line 259) no Hoare annotation was computed. [2021-11-12 22:59:39,687 INFO L858 garLoopResultBuilder]: For program point L259-3(line 259) no Hoare annotation was computed. [2021-11-12 22:59:39,687 INFO L858 garLoopResultBuilder]: For program point L259-5(lines 259 271) no Hoare annotation was computed. [2021-11-12 22:59:39,687 INFO L858 garLoopResultBuilder]: For program point L251-1(lines 251 258) no Hoare annotation was computed. [2021-11-12 22:59:39,688 INFO L861 garLoopResultBuilder]: At program point L251-3(lines 251 258) the Hoare annotation is: true [2021-11-12 22:59:39,688 INFO L858 garLoopResultBuilder]: For program point L251-4(lines 251 258) no Hoare annotation was computed. [2021-11-12 22:59:39,688 INFO L858 garLoopResultBuilder]: For program point L243(line 243) no Hoare annotation was computed. [2021-11-12 22:59:39,688 INFO L858 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2021-11-12 22:59:39,688 INFO L858 garLoopResultBuilder]: For program point L239-2(line 239) no Hoare annotation was computed. [2021-11-12 22:59:39,689 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 233) no Hoare annotation was computed. [2021-11-12 22:59:39,689 INFO L858 garLoopResultBuilder]: For program point L227-2(lines 227 233) no Hoare annotation was computed. [2021-11-12 22:59:39,689 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 226) no Hoare annotation was computed. [2021-11-12 22:59:39,689 INFO L858 garLoopResultBuilder]: For program point L248(line 248) no Hoare annotation was computed. [2021-11-12 22:59:39,689 INFO L858 garLoopResultBuilder]: For program point L240(line 240) no Hoare annotation was computed. [2021-11-12 22:59:39,690 INFO L858 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2021-11-12 22:59:39,690 INFO L858 garLoopResultBuilder]: For program point L236-2(line 236) no Hoare annotation was computed. [2021-11-12 22:59:39,690 INFO L858 garLoopResultBuilder]: For program point L261(lines 261 266) no Hoare annotation was computed. [2021-11-12 22:59:39,690 INFO L858 garLoopResultBuilder]: For program point L261-1(lines 259 271) no Hoare annotation was computed. [2021-11-12 22:59:39,690 INFO L858 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-11-12 22:59:39,691 INFO L858 garLoopResultBuilder]: For program point L245-2(line 245) no Hoare annotation was computed. [2021-11-12 22:59:39,691 INFO L858 garLoopResultBuilder]: For program point L237(line 237) no Hoare annotation was computed. [2021-11-12 22:59:39,691 INFO L858 garLoopResultBuilder]: For program point L229(lines 229 232) no Hoare annotation was computed. [2021-11-12 22:59:39,691 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_107EXIT(lines 218 273) no Hoare annotation was computed. [2021-11-12 22:59:39,695 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-12 22:59:39,697 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:59:39,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:59:39 BoogieIcfgContainer [2021-11-12 22:59:39,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:59:39,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:59:39,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:59:39,719 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:59:39,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:59:29" (3/4) ... [2021-11-12 22:59:39,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:59:39,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_113 [2021-11-12 22:59:39,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2021-11-12 22:59:39,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_107 [2021-11-12 22:59:39,748 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2021-11-12 22:59:39,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-12 22:59:39,752 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-12 22:59:39,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 22:59:39,755 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:59:39,756 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:59:39,804 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(2bv32 == Id_MCDC_111) || \old(Id_MCDC_111) == 2bv32 [2021-11-12 22:59:39,808 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == Id_MCDC_121 && (!(2bv32 == Id_MCDC_111) || \old(Id_MCDC_111) == 2bv32)) && (4bv32 == Id_MCDC_111 || !(\old(Id_MCDC_111) == 4bv32)) [2021-11-12 22:59:39,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:59:39,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:59:39,881 INFO L158 Benchmark]: Toolchain (without parser) took 13143.41ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 39.6MB in the beginning and 33.9MB in the end (delta: 5.7MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2021-11-12 22:59:39,882 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:59:39,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.03ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 28.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:59:39,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.00ms. Allocated memory is still 60.8MB. Free memory was 28.4MB in the beginning and 25.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 22:59:39,883 INFO L158 Benchmark]: Boogie Preprocessor took 142.25ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 25.2MB in the beginning and 67.5MB in the end (delta: -42.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 22:59:39,883 INFO L158 Benchmark]: RCFGBuilder took 1622.98ms. Allocated memory is still 88.1MB. Free memory was 67.5MB in the beginning and 50.3MB in the end (delta: 17.2MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-12 22:59:39,884 INFO L158 Benchmark]: TraceAbstraction took 10246.50ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.9MB in the beginning and 45.3MB in the end (delta: 4.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-11-12 22:59:39,884 INFO L158 Benchmark]: Witness Printer took 162.34ms. Allocated memory is still 107.0MB. Free memory was 45.3MB in the beginning and 33.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:59:39,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.03ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 28.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.00ms. Allocated memory is still 60.8MB. Free memory was 28.4MB in the beginning and 25.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 142.25ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 25.2MB in the beginning and 67.5MB in the end (delta: -42.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1622.98ms. Allocated memory is still 88.1MB. Free memory was 67.5MB in the beginning and 50.3MB in the end (delta: 17.2MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10246.50ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.9MB in the beginning and 45.3MB in the end (delta: 4.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 162.34ms. Allocated memory is still 107.0MB. Free memory was 45.3MB in the beginning and 33.9MB in the end (delta: 11.3MB). 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: 489]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 296 SdHoareTripleChecker+Valid, 308.54ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 276 mSDsluCounter, 1981 SdHoareTripleChecker+Invalid, 252.95ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1098 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 883 mSDtfsCounter, 66 mSolverCounterSat, 19.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 684 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 101 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 174 PreInvPairs, 229 NumberOfFragments, 110 HoareAnnotationTreeSize, 174 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 119 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 682 ConstructedInterpolants, 0 QuantifiedInterpolants, 900 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2741 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 60/112 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: 356]: Loop Invariant Derived loop invariant: Id_MCDC_158 == 0bv32 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: Id_MCDC_158 == 0bv32 && 6144bv32 == Id_MCDC_141 - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: Id_MCDC_158 == 0bv32 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: !(2bv32 == Id_MCDC_111) || \old(Id_MCDC_111) == 2bv32 - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: Id_MCDC_158 == 0bv32 - InvariantResult [Line: 431]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 452]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: Id_MCDC_158 == 0bv32 - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: (1bv32 == Id_MCDC_121 && (!(2bv32 == Id_MCDC_111) || \old(Id_MCDC_111) == 2bv32)) && (4bv32 == Id_MCDC_111 || !(\old(Id_MCDC_111) == 4bv32)) - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 383]: Loop Invariant Derived loop invariant: Id_MCDC_158 == 0bv32 RESULT: Ultimate proved your program to be correct! [2021-11-12 22:59:39,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b69571-e8eb-4c37-86f5-a4d7b3bb0ece/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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