./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan --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 c7604f323f01a3c659629a3446d646b5cd5a69c1 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan --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 c7604f323f01a3c659629a3446d646b5cd5a69c1 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:38:32,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:32,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:32,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:32,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:32,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:32,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:32,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:32,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:32,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:32,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:32,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:32,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:32,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:32,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:32,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:32,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:32,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:32,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:32,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:32,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:32,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:32,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:32,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:32,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:32,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:32,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:32,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:32,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:32,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:32,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:32,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:32,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:32,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:32,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:32,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:32,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:32,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:32,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:32,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:32,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:32,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:38:32,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:32,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:32,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:32,236 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:32,236 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:32,237 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:32,237 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:38:32,237 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:32,238 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:32,238 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:38:32,239 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:38:32,240 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:32,240 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:38:32,240 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:38:32,241 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:38:32,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:32,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:32,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:38:32,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:32,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:32,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:32,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:32,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:32,244 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:32,244 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:32,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:32,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:32,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:32,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:32,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:32,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:32,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:32,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:32,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:32,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:32,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:38:32,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:38:32,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:32,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:32,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:32,248 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-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7604f323f01a3c659629a3446d646b5cd5a69c1 [2020-11-28 07:38:32,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:32,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:32,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:32,567 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:32,568 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:32,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/../../sv-benchmarks/c/ldv-regression/1_3.i [2020-11-28 07:38:32,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/cb17dac00/152083a1dad545c796162d8306dfda9e/FLAG7e391dc2d [2020-11-28 07:38:33,107 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:33,107 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/sv-benchmarks/c/ldv-regression/1_3.i [2020-11-28 07:38:33,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/cb17dac00/152083a1dad545c796162d8306dfda9e/FLAG7e391dc2d [2020-11-28 07:38:33,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/cb17dac00/152083a1dad545c796162d8306dfda9e [2020-11-28 07:38:33,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:33,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:33,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:33,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:33,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:33,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:33" (1/1) ... [2020-11-28 07:38:33,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4776183a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:33, skipping insertion in model container [2020-11-28 07:38:33,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:33" (1/1) ... [2020-11-28 07:38:33,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:33,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:33,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:33,758 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) [2020-11-28 07:38:33,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e863ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:33, skipping insertion in model container [2020-11-28 07:38:33,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:33,761 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:38:33,766 INFO L168 Benchmark]: Toolchain (without parser) took 262.16 ms. Allocated memory is still 123.7 MB. Free memory was 95.6 MB in the beginning and 103.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:33,767 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:33,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.95 ms. Allocated memory is still 123.7 MB. Free memory was 95.4 MB in the beginning and 103.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:33,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.95 ms. Allocated memory is still 123.7 MB. Free memory was 95.4 MB in the beginning and 103.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 32]: 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:38:36,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:36,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:36,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:36,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:36,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:36,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:36,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:36,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:36,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:36,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:36,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:36,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:36,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:36,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:36,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:36,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:36,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:36,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:36,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:36,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:36,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:36,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:36,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:36,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:36,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:36,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:36,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:36,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:36,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:36,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:36,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:36,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:36,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:36,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:36,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:36,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:36,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:36,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:36,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:36,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:36,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:38:36,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:36,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:36,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:36,613 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:36,613 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:36,613 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:36,614 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:36,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:36,614 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:36,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:36,617 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:36,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:36,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:36,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:36,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:36,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:36,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:36,619 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:38:36,619 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:38:36,619 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:36,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:36,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:36,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:36,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:36,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:38:36,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:36,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:36,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:36,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:36,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:36,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:36,622 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:38:36,622 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:38:36,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:36,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:36,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:36,623 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-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7604f323f01a3c659629a3446d646b5cd5a69c1 [2020-11-28 07:38:37,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:37,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:37,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:37,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:37,134 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:37,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/../../sv-benchmarks/c/ldv-regression/1_3.i [2020-11-28 07:38:37,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/84c0c70a6/fec946847ff94b0dace471ee1ca62952/FLAG3a62f8362 [2020-11-28 07:38:37,857 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:37,857 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/sv-benchmarks/c/ldv-regression/1_3.i [2020-11-28 07:38:37,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/84c0c70a6/fec946847ff94b0dace471ee1ca62952/FLAG3a62f8362 [2020-11-28 07:38:38,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/data/84c0c70a6/fec946847ff94b0dace471ee1ca62952 [2020-11-28 07:38:38,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:38,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:38,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:38,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:38,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:38,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c42a432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38, skipping insertion in model container [2020-11-28 07:38:38,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:38,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:38,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:38,454 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:38:38,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:38,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:38,476 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:38,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:38,578 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:38,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38 WrapperNode [2020-11-28 07:38:38,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:38,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:38,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:38,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:38,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:38,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:38,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:38,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:38,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... [2020-11-28 07:38:38,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:38,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:38,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:38,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:38,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:38:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 07:38:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:38:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:38:39,335 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:39,335 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-28 07:38:39,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:39 BoogieIcfgContainer [2020-11-28 07:38:39,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:39,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:39,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:39,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:39,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:38" (1/3) ... [2020-11-28 07:38:39,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa1ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:39, skipping insertion in model container [2020-11-28 07:38:39,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:38" (2/3) ... [2020-11-28 07:38:39,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa1ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:39, skipping insertion in model container [2020-11-28 07:38:39,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:39" (3/3) ... [2020-11-28 07:38:39,347 INFO L111 eAbstractionObserver]: Analyzing ICFG 1_3.i [2020-11-28 07:38:39,361 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:39,367 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 07:38:39,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 07:38:39,413 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:39,413 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:39,414 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:39,414 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:39,414 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:39,414 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:39,415 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:39,415 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-11-28 07:38:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:38:39,437 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:39,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:38:39,439 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:39,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:39,446 INFO L82 PathProgramCache]: Analyzing trace with hash 889476007, now seen corresponding path program 1 times [2020-11-28 07:38:39,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:39,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630032263] [2020-11-28 07:38:39,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:38:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:39,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 07:38:39,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:39,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,848 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-28 07:38:39,850 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-28 07:38:39,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:39,901 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2020-11-28 07:38:39,903 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:39,948 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:39,949 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:38:39,949 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:42 [2020-11-28 07:38:40,064 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:40,065 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 26 [2020-11-28 07:38:40,067 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:40,082 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:40,082 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:38:40,083 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:13 [2020-11-28 07:38:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:40,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:40,230 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 96 [2020-11-28 07:38:40,325 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:40,443 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 1 [2020-11-28 07:38:40,444 INFO L625 ElimStorePlain]: treesize reduction 10257, result has 0.0 percent of original size [2020-11-28 07:38:40,445 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:38:40,449 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:40,449 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:38:40,450 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:1 [2020-11-28 07:38:40,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:40,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630032263] [2020-11-28 07:38:40,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:40,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2020-11-28 07:38:40,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231609223] [2020-11-28 07:38:40,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:38:40,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:40,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:38:40,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:38:40,477 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2020-11-28 07:38:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:40,765 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-28 07:38:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:38:40,771 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-11-28 07:38:40,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:40,782 INFO L225 Difference]: With dead ends: 29 [2020-11-28 07:38:40,782 INFO L226 Difference]: Without dead ends: 10 [2020-11-28 07:38:40,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:38:40,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-28 07:38:40,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-28 07:38:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 07:38:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-11-28 07:38:40,827 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2020-11-28 07:38:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:40,829 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-11-28 07:38:40,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:38:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-11-28 07:38:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:38:40,831 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:40,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:41,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:38:41,052 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:41,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:41,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1570139064, now seen corresponding path program 1 times [2020-11-28 07:38:41,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:41,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690464789] [2020-11-28 07:38:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:38:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:38:41,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:38:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:38:41,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:38:41,313 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:38:41,313 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:38:41,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:38:41,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:41 BoogieIcfgContainer [2020-11-28 07:38:41,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:41,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:41,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:41,556 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:41,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:39" (3/4) ... [2020-11-28 07:38:41,560 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:38:41,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8f58b178-2988-470a-9544-973b134f02ca/bin/utaipan/witness.graphml [2020-11-28 07:38:41,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:41,609 INFO L168 Benchmark]: Toolchain (without parser) took 3400.23 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.0 MB in the beginning and 37.4 MB in the end (delta: -4.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:41,610 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:41,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.56 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 37.3 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:41,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.29 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 35.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:41,612 INFO L168 Benchmark]: Boogie Preprocessor took 32.40 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 34.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:41,613 INFO L168 Benchmark]: RCFGBuilder took 680.06 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 34.3 MB in the beginning and 46.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:41,614 INFO L168 Benchmark]: TraceAbstraction took 2215.57 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 39.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:41,615 INFO L168 Benchmark]: Witness Printer took 51.42 ms. Allocated memory is still 67.1 MB. Free memory was 39.5 MB in the beginning and 37.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:41,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.56 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 37.3 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.29 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 35.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.40 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 34.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 680.06 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 34.3 MB in the beginning and 46.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2215.57 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 39.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 51.42 ms. Allocated memory is still 67.1 MB. Free memory was 39.5 MB in the beginning and 37.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L52] rr * ptr1 = 0; [L32] rr * r = (rr *)malloc(sizeof *r); [L33] r -> state = 0 [L34] return r; [L39] rr * r = getrr(); [L40] r -> state = 1 [L41] return r; [L53] ptr1 = getPtr() [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L47] ptr -> state = 2 [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L3] __assert_fail("0", "1_3.i", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 19 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 585 SizeOfPredicates, 18 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...