./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c --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_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/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 5ebccae0581b398040ff9316586f03c48604ddc0 ............................................................................................................................................ 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_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/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 5ebccae0581b398040ff9316586f03c48604ddc0 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-22 13:07:06,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:06,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:06,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:06,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:06,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:06,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:06,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:06,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:06,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:06,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:06,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:06,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:06,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:06,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:06,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:06,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:06,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:06,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:06,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:06,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:06,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:06,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:06,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:06,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:06,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:06,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:06,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:06,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:06,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:06,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:06,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:06,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:06,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:06,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:06,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:06,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:06,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:06,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:06,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:06,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:06,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:07:06,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:06,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:06,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:06,937 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:06,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:06,937 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:06,937 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:07:06,937 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:06,938 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:06,938 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:07:06,938 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:07:06,938 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:06,939 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:07:06,939 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:07:06,939 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:07:06,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:06,940 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:06,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:06,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:06,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:06,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:06,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:06,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:06,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:06,942 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:06,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:06,942 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:06,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:06,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:06,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:06,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:06,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:06,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:06,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:06,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:06,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:07:06,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:07:06,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:06,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:06,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:06,945 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_49d67dd2-b961-40cd-9a47-ab5ce432743b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ebccae0581b398040ff9316586f03c48604ddc0 [2020-11-22 13:07:07,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:07,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:07,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:07,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:07,209 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:07,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-11-22 13:07:07,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/f9ba2dd41/5f94edc6aea74007bab1afc51361c9f1/FLAGc4838ab8f [2020-11-22 13:07:07,824 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:07,824 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-11-22 13:07:07,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/f9ba2dd41/5f94edc6aea74007bab1afc51361c9f1/FLAGc4838ab8f [2020-11-22 13:07:08,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/f9ba2dd41/5f94edc6aea74007bab1afc51361c9f1 [2020-11-22 13:07:08,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:08,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:08,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:08,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:08,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:08,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:08" (1/1) ... [2020-11-22 13:07:08,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17080e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:08, skipping insertion in model container [2020-11-22 13:07:08,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:08" (1/1) ... [2020-11-22 13:07:08,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:08,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:08,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:08,555 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) [2020-11-22 13:07:08,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e3f2cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:08, skipping insertion in model container [2020-11-22 13:07:08,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:08,559 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:07:08,562 INFO L168 Benchmark]: Toolchain (without parser) took 416.54 ms. Allocated memory is still 109.1 MB. Free memory was 74.9 MB in the beginning and 82.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:08,563 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 81.6 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:08,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.91 ms. Allocated memory is still 109.1 MB. Free memory was 74.6 MB in the beginning and 82.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:08,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 81.6 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 413.91 ms. Allocated memory is still 109.1 MB. Free memory was 74.6 MB in the beginning and 82.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 108]: 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 [2020-11-22 13:07:10,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:10,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:10,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:10,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:10,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:10,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:10,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:10,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:10,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:10,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:10,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:10,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:10,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:10,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:10,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:10,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:10,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:10,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:10,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:10,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:10,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:10,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:10,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:10,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:10,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:10,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:10,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:10,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:10,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:10,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:10,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:10,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:10,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:10,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:10,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:10,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:10,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:10,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:10,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:10,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:10,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:07:10,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:10,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:10,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:10,969 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:10,969 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:10,970 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:10,970 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:10,971 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:10,971 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:10,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:10,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:10,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:10,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:10,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:10,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:10,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:10,975 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:10,975 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:07:10,976 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:07:10,976 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:10,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:10,976 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:10,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:10,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:10,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:07:10,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:10,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:10,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:10,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:10,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:10,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:10,979 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:07:10,980 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:07:10,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:10,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:10,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:10,981 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_49d67dd2-b961-40cd-9a47-ab5ce432743b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ebccae0581b398040ff9316586f03c48604ddc0 [2020-11-22 13:07:11,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:11,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:11,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:11,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:11,454 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:11,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-11-22 13:07:11,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/0f6bc55c1/6e7be75a5ef24e699d146fb9e4f48e3b/FLAG3527d2cac [2020-11-22 13:07:12,088 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:12,088 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-11-22 13:07:12,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/0f6bc55c1/6e7be75a5ef24e699d146fb9e4f48e3b/FLAG3527d2cac [2020-11-22 13:07:12,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/data/0f6bc55c1/6e7be75a5ef24e699d146fb9e4f48e3b [2020-11-22 13:07:12,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:12,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:12,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:12,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:12,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:12,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:12" (1/1) ... [2020-11-22 13:07:12,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c93f022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:12, skipping insertion in model container [2020-11-22 13:07:12,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:12" (1/1) ... [2020-11-22 13:07:12,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:12,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:12,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:12,932 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:07:12,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:13,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:13,006 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:13,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:13,143 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:13,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13 WrapperNode [2020-11-22 13:07:13,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:13,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:13,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:13,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:13,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:13,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:13,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:13,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:13,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... [2020-11-22 13:07:13,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:13,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:13,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:13,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:13,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/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 [2020-11-22 13:07:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:07:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:13,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:15,552 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:07:15,554 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-11-22 13:07:15,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:15 BoogieIcfgContainer [2020-11-22 13:07:15,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:07:15,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:07:15,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:07:15,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:07:15,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:12" (1/3) ... [2020-11-22 13:07:15,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2329ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:15, skipping insertion in model container [2020-11-22 13:07:15,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:13" (2/3) ... [2020-11-22 13:07:15,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2329ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:15, skipping insertion in model container [2020-11-22 13:07:15,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:15" (3/3) ... [2020-11-22 13:07:15,564 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-11-22 13:07:15,574 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:07:15,579 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:07:15,590 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:07:15,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:07:15,622 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:07:15,622 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:07:15,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:07:15,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:07:15,622 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:07:15,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:07:15,623 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:07:15,640 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-11-22 13:07:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:07:15,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:15,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:15,647 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:15,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:15,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1919608253, now seen corresponding path program 1 times [2020-11-22 13:07:15,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:15,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438139620] [2020-11-22 13:07:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/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 [2020-11-22 13:07:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:15,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:07:15,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:15,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:15,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438139620] [2020-11-22 13:07:15,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:15,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:07:15,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561495023] [2020-11-22 13:07:15,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:07:15,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:15,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:07:15,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:15,957 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2020-11-22 13:07:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:15,981 INFO L93 Difference]: Finished difference Result 163 states and 242 transitions. [2020-11-22 13:07:15,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:07:15,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:07:15,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:15,992 INFO L225 Difference]: With dead ends: 163 [2020-11-22 13:07:15,992 INFO L226 Difference]: Without dead ends: 79 [2020-11-22 13:07:15,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-22 13:07:16,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-11-22 13:07:16,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-22 13:07:16,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2020-11-22 13:07:16,033 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2020-11-22 13:07:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:16,033 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2020-11-22 13:07:16,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:07:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-11-22 13:07:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:07:16,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:16,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:16,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:07:16,252 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:16,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:16,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1008577500, now seen corresponding path program 1 times [2020-11-22 13:07:16,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:16,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908855149] [2020-11-22 13:07:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/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 [2020-11-22 13:07:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:16,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:07:16,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:16,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:16,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908855149] [2020-11-22 13:07:16,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:16,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:07:16,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036038575] [2020-11-22 13:07:16,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:16,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:16,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:16,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:16,475 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 4 states. [2020-11-22 13:07:16,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:16,488 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-11-22 13:07:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:16,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:07:16,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:16,490 INFO L225 Difference]: With dead ends: 79 [2020-11-22 13:07:16,490 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 13:07:16,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:16,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 13:07:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 13:07:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 13:07:16,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-11-22 13:07:16,496 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2020-11-22 13:07:16,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:16,497 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-11-22 13:07:16,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:16,497 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-11-22 13:07:16,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:07:16,498 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:16,498 INFO L422 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, 1] [2020-11-22 13:07:16,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:07:16,715 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:16,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:16,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2020-11-22 13:07:16,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:16,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902100588] [2020-11-22 13:07:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:16,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:07:16,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:16,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:16,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902100588] [2020-11-22 13:07:16,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:16,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:07:16,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987774332] [2020-11-22 13:07:16,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:16,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:16,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:16,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:16,947 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 4 states. [2020-11-22 13:07:17,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:17,000 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2020-11-22 13:07:17,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:17,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:07:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:17,003 INFO L225 Difference]: With dead ends: 124 [2020-11-22 13:07:17,003 INFO L226 Difference]: Without dead ends: 93 [2020-11-22 13:07:17,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-22 13:07:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2020-11-22 13:07:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-22 13:07:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-11-22 13:07:17,021 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2020-11-22 13:07:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:17,022 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-11-22 13:07:17,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-11-22 13:07:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:07:17,024 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:17,024 INFO L422 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, 1, 1] [2020-11-22 13:07:17,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:07:17,238 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:17,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2020-11-22 13:07:17,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:17,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168650337] [2020-11-22 13:07:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:17,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:07:17,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:17,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:17,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:17,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:17,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168650337] [2020-11-22 13:07:17,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:17,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:07:17,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940566454] [2020-11-22 13:07:17,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:07:17,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:17,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:07:17,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:17,490 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 8 states. [2020-11-22 13:07:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:17,890 INFO L93 Difference]: Finished difference Result 602 states and 924 transitions. [2020-11-22 13:07:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:07:17,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-22 13:07:17,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:17,895 INFO L225 Difference]: With dead ends: 602 [2020-11-22 13:07:17,895 INFO L226 Difference]: Without dead ends: 550 [2020-11-22 13:07:17,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:07:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-11-22 13:07:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 148. [2020-11-22 13:07:17,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-22 13:07:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 214 transitions. [2020-11-22 13:07:17,929 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 214 transitions. Word has length 25 [2020-11-22 13:07:17,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:17,930 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 214 transitions. [2020-11-22 13:07:17,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:07:17,930 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 214 transitions. [2020-11-22 13:07:17,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:07:17,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:17,932 INFO L422 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, 1, 1, 1] [2020-11-22 13:07:18,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:07:18,148 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:18,148 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2020-11-22 13:07:18,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:18,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191415913] [2020-11-22 13:07:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:19,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:20,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:20,300 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:07:20,300 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:07:20,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:07:20,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:07:20 BoogieIcfgContainer [2020-11-22 13:07:20,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:07:20,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:07:20,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:07:20,636 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:07:20,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:15" (3/4) ... [2020-11-22 13:07:20,638 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:07:20,738 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_49d67dd2-b961-40cd-9a47-ab5ce432743b/bin/utaipan/witness.graphml [2020-11-22 13:07:20,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:07:20,740 INFO L168 Benchmark]: Toolchain (without parser) took 8300.33 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 39.1 MB in the beginning and 34.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,740 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 42.2 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:20,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.68 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 27.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.77 ms. Allocated memory is still 60.8 MB. Free memory was 27.1 MB in the beginning and 42.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,742 INFO L168 Benchmark]: Boogie Preprocessor took 75.68 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 39.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,742 INFO L168 Benchmark]: RCFGBuilder took 2225.00 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.8 MB in the beginning and 54.0 MB in the end (delta: -14.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,743 INFO L168 Benchmark]: TraceAbstraction took 5077.42 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 53.6 MB in the beginning and 45.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,743 INFO L168 Benchmark]: Witness Printer took 102.38 ms. Allocated memory is still 88.1 MB. Free memory was 45.0 MB in the beginning and 34.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 42.2 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 702.68 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 27.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.77 ms. Allocated memory is still 60.8 MB. Free memory was 27.1 MB in the beginning and 42.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.68 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 39.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2225.00 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.8 MB in the beginning and 54.0 MB in the end (delta: -14.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5077.42 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 53.6 MB in the beginning and 45.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * Witness Printer took 102.38 ms. Allocated memory is still 88.1 MB. Free memory was 45.0 MB in the beginning and 34.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int splverifierCounter ; [L769] int tmp ; [L770] int tmp___0 ; [L771] int tmp___1 ; [L772] int tmp___2 ; [L775] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L777] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L779] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L785] tmp = __VERIFIER_nondet_int() [L787] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] COND TRUE waterLevel < 2 [L855] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L795] tmp___0 = __VERIFIER_nondet_int() [L797] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L805] tmp___2 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___2) [L762] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] COND TRUE \read(systemActive) [L628] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L680] int retValue_acc ; [L683] retValue_acc = pumpRunning [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product20.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 301 SDtfs, 787 SDslu, 586 SDs, 0 SdLazy, 104 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 437 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 8246 SizeOfPredicates, 6 NumberOfNonLiveVariables, 792 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...