./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product08.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_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 5aa79e967971f371d7b4e44dc64a6773e8ce908a ............................................................................................................................................ 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_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 5aa79e967971f371d7b4e44dc64a6773e8ce908a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:04:13,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:13,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:13,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:13,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:13,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:13,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:13,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:13,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:13,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:13,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:13,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:13,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:13,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:13,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:13,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:13,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:13,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:13,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:13,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:13,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:13,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:13,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:13,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:13,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:13,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:13,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:13,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:13,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:13,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:13,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:13,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:13,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:13,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:13,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:13,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:13,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:13,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:13,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:13,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:13,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:13,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:04:13,883 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:13,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:13,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:13,885 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:13,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:13,886 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:13,886 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:04:13,886 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:13,886 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:13,887 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:04:13,888 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:04:13,888 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:13,888 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:04:13,889 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:04:13,889 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:04:13,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:13,890 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:13,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:04:13,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:13,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:13,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:13,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:13,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:13,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:13,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:13,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:13,892 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:13,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:13,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:13,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:13,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:13,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:13,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:13,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:13,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:13,895 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:04:13,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:04:13,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:13,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:13,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:13,896 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_a086946b-2bc6-439f-905a-da775d419aad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa79e967971f371d7b4e44dc64a6773e8ce908a [2020-11-22 13:04:14,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:14,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:14,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:14,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:14,203 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:14,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-11-22 13:04:14,269 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/a104c5362/43dcd046b01e498f8caba3929a70055f/FLAG47df2a4b1 [2020-11-22 13:04:14,845 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:14,846 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-11-22 13:04:14,859 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/a104c5362/43dcd046b01e498f8caba3929a70055f/FLAG47df2a4b1 [2020-11-22 13:04:15,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/a104c5362/43dcd046b01e498f8caba3929a70055f [2020-11-22 13:04:15,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:15,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:15,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:15,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:15,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:15,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:15" (1/1) ... [2020-11-22 13:04:15,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be6b624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:15, skipping insertion in model container [2020-11-22 13:04:15,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:15" (1/1) ... [2020-11-22 13:04:15,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:15,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:15,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:15,543 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 13:04:15,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@312a468b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:15, skipping insertion in model container [2020-11-22 13:04:15,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:15,544 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:04:15,546 INFO L168 Benchmark]: Toolchain (without parser) took 424.26 ms. Allocated memory is still 94.4 MB. Free memory was 63.4 MB in the beginning and 67.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:15,547 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:15,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.80 ms. Allocated memory is still 94.4 MB. Free memory was 63.2 MB in the beginning and 67.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:15,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 418.80 ms. Allocated memory is still 94.4 MB. Free memory was 63.2 MB in the beginning and 67.6 MB in the end (delta: -4.4 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: 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 13:04:17,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:17,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:17,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:17,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:17,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:17,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:17,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:17,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:17,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:17,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:17,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:17,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:17,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:17,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:17,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:17,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:17,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:17,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:17,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:17,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:17,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:17,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:17,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:17,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:17,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:17,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:17,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:17,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:17,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:17,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:17,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:17,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:17,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:17,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:17,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:17,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:17,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:17,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:17,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:17,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:17,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:04:17,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:17,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:17,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:17,979 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:17,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:17,979 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:17,979 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:17,979 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:17,980 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:17,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:17,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:17,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:17,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:17,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:17,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:17,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:17,983 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:17,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:04:17,984 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:04:17,984 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:17,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:17,984 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:17,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:17,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:17,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:04:17,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:17,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:17,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:17,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:17,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:17,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:17,986 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:04:17,986 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:04:17,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:17,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:17,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:17,987 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_a086946b-2bc6-439f-905a-da775d419aad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa79e967971f371d7b4e44dc64a6773e8ce908a [2020-11-22 13:04:18,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:18,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:18,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:18,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:18,433 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:18,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-11-22 13:04:18,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/824e765b4/c5d8aa271b3741bc8f58263d107b9bb8/FLAG804af7fb0 [2020-11-22 13:04:19,073 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:19,076 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-11-22 13:04:19,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/824e765b4/c5d8aa271b3741bc8f58263d107b9bb8/FLAG804af7fb0 [2020-11-22 13:04:19,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/data/824e765b4/c5d8aa271b3741bc8f58263d107b9bb8 [2020-11-22 13:04:19,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:19,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:19,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:19,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:19,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:19,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:19" (1/1) ... [2020-11-22 13:04:19,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f56676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:19, skipping insertion in model container [2020-11-22 13:04:19,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:19" (1/1) ... [2020-11-22 13:04:19,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:19,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:19,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:19,811 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:04:19,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:19,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:19,938 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:04:20,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:20,064 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:04:20,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20 WrapperNode [2020-11-22 13:04:20,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:20,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:20,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:04:20,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:04:20,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:20,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:04:20,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:04:20,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:04:20,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... [2020-11-22 13:04:20,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:04:20,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:04:20,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:04:20,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:04:20,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 13:04:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:04:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:04:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:04:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:04:22,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:04:22,825 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-11-22 13:04:22,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:22 BoogieIcfgContainer [2020-11-22 13:04:22,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:04:22,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:04:22,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:04:22,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:04:22,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:04:19" (1/3) ... [2020-11-22 13:04:22,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f5f904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:22, skipping insertion in model container [2020-11-22 13:04:22,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:20" (2/3) ... [2020-11-22 13:04:22,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f5f904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:22, skipping insertion in model container [2020-11-22 13:04:22,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:22" (3/3) ... [2020-11-22 13:04:22,837 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-11-22 13:04:22,850 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:04:22,856 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:04:22,867 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:04:22,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:04:22,896 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:04:22,896 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:04:22,896 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:04:22,896 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:04:22,897 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:04:22,897 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:04:22,897 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:04:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-11-22 13:04:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:04:22,916 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:22,917 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 13:04:22,917 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:22,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:22,923 INFO L82 PathProgramCache]: Analyzing trace with hash -355307121, now seen corresponding path program 1 times [2020-11-22 13:04:22,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:22,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977700407] [2020-11-22 13:04:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 13:04:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:23,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:04:23,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:23,235 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 13:04:23,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:23,243 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 13:04:23,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977700407] [2020-11-22 13:04:23,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:23,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:04:23,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529856938] [2020-11-22 13:04:23,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:04:23,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:23,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:04:23,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:04:23,269 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-11-22 13:04:23,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:23,317 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2020-11-22 13:04:23,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:04:23,320 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:04:23,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:23,333 INFO L225 Difference]: With dead ends: 151 [2020-11-22 13:04:23,333 INFO L226 Difference]: Without dead ends: 73 [2020-11-22 13:04:23,336 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 13:04:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-22 13:04:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-22 13:04:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-22 13:04:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-11-22 13:04:23,375 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-11-22 13:04:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:23,376 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-11-22 13:04:23,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:04:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-11-22 13:04:23,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:04:23,378 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:23,378 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 13:04:23,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:04:23,579 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:23,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:23,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1266337874, now seen corresponding path program 1 times [2020-11-22 13:04:23,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:23,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717594590] [2020-11-22 13:04:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 13:04:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:23,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:23,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:23,795 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 13:04:23,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:23,816 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 13:04:23,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717594590] [2020-11-22 13:04:23,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:23,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:04:23,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121567894] [2020-11-22 13:04:23,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:23,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:23,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:23,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:23,819 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 4 states. [2020-11-22 13:04:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:23,832 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-11-22 13:04:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:23,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:04:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:23,834 INFO L225 Difference]: With dead ends: 73 [2020-11-22 13:04:23,834 INFO L226 Difference]: Without dead ends: 35 [2020-11-22 13:04:23,835 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 13:04:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-22 13:04:23,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-22 13:04:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-22 13:04:23,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-22 13:04:23,840 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-22 13:04:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:23,840 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-22 13:04:23,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:23,841 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-22 13:04:23,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:04:23,842 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:23,842 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 13:04:24,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:04:24,049 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:24,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:24,050 INFO L82 PathProgramCache]: Analyzing trace with hash 428358184, now seen corresponding path program 1 times [2020-11-22 13:04:24,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:24,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137295205] [2020-11-22 13:04:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 13:04:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:24,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:24,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:24,230 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 13:04:24,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:24,248 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 13:04:24,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137295205] [2020-11-22 13:04:24,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:24,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:04:24,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404650602] [2020-11-22 13:04:24,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:24,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:24,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:24,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:24,250 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 4 states. [2020-11-22 13:04:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:24,342 INFO L93 Difference]: Finished difference Result 118 states and 172 transitions. [2020-11-22 13:04:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:04:24,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:04:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:24,345 INFO L225 Difference]: With dead ends: 118 [2020-11-22 13:04:24,345 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 13:04:24,346 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 13:04:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 13:04:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 56. [2020-11-22 13:04:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 13:04:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2020-11-22 13:04:24,356 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 24 [2020-11-22 13:04:24,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:24,357 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2020-11-22 13:04:24,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2020-11-22 13:04:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:04:24,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:24,363 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 13:04:24,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:04:24,582 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:24,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:24,583 INFO L82 PathProgramCache]: Analyzing trace with hash 796513325, now seen corresponding path program 1 times [2020-11-22 13:04:24,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:24,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561923144] [2020-11-22 13:04:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 13:04:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:24,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:24,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:24,823 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 13:04:24,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:24,860 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 13:04:24,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561923144] [2020-11-22 13:04:24,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:24,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:04:24,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73133054] [2020-11-22 13:04:24,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:04:24,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:24,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:04:24,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:04:24,863 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand 8 states. [2020-11-22 13:04:25,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:25,236 INFO L93 Difference]: Finished difference Result 570 states and 876 transitions. [2020-11-22 13:04:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:04:25,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-22 13:04:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:25,242 INFO L225 Difference]: With dead ends: 570 [2020-11-22 13:04:25,242 INFO L226 Difference]: Without dead ends: 520 [2020-11-22 13:04:25,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:04:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-11-22 13:04:25,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 142. [2020-11-22 13:04:25,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-22 13:04:25,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 205 transitions. [2020-11-22 13:04:25,287 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 205 transitions. Word has length 25 [2020-11-22 13:04:25,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:25,287 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 205 transitions. [2020-11-22 13:04:25,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:04:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 205 transitions. [2020-11-22 13:04:25,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:04:25,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:25,294 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 13:04:25,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:04:25,509 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:25,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:25,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1162795665, now seen corresponding path program 1 times [2020-11-22 13:04:25,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:25,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148307744] [2020-11-22 13:04:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/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 13:04:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:27,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:28,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:28,260 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:04:28,260 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:04:28,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:04:28,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:04:28 BoogieIcfgContainer [2020-11-22 13:04:28,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:04:28,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:04:28,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:04:28,616 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:04:28,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:22" (3/4) ... [2020-11-22 13:04:28,619 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:04:28,736 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a086946b-2bc6-439f-905a-da775d419aad/bin/utaipan/witness.graphml [2020-11-22 13:04:28,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:04:28,739 INFO L168 Benchmark]: Toolchain (without parser) took 9359.59 ms. Allocated memory was 60.8 MB in the beginning and 109.1 MB in the end (delta: 48.2 MB). Free memory was 39.2 MB in the beginning and 48.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,740 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 60.8 MB. Free memory was 43.3 MB in the beginning and 43.3 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:28,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.42 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 27.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.60 ms. Allocated memory was 60.8 MB in the beginning and 90.2 MB in the end (delta: 29.4 MB). Free memory was 27.0 MB in the beginning and 71.7 MB in the end (delta: -44.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,743 INFO L168 Benchmark]: Boogie Preprocessor took 69.54 ms. Allocated memory is still 90.2 MB. Free memory was 71.7 MB in the beginning and 69.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,744 INFO L168 Benchmark]: RCFGBuilder took 2582.18 ms. Allocated memory is still 90.2 MB. Free memory was 69.1 MB in the beginning and 46.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,747 INFO L168 Benchmark]: TraceAbstraction took 5786.55 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 45.5 MB in the beginning and 58.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,747 INFO L168 Benchmark]: Witness Printer took 121.32 ms. Allocated memory is still 109.1 MB. Free memory was 58.9 MB in the beginning and 48.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 60.8 MB. Free memory was 43.3 MB in the beginning and 43.3 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 685.42 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 27.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.60 ms. Allocated memory was 60.8 MB in the beginning and 90.2 MB in the end (delta: 29.4 MB). Free memory was 27.0 MB in the beginning and 71.7 MB in the end (delta: -44.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.54 ms. Allocated memory is still 90.2 MB. Free memory was 71.7 MB in the beginning and 69.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2582.18 ms. Allocated memory is still 90.2 MB. Free memory was 69.1 MB in the beginning and 46.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5786.55 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 45.5 MB in the beginning and 58.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Witness Printer took 121.32 ms. Allocated memory is still 109.1 MB. Free memory was 58.9 MB in the beginning and 48.5 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; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L809] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] int retValue_acc ; [L883] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] int retValue_acc ; [L803] retValue_acc = 1 [L804] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] tmp = valid_product() [L891] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] int splverifierCounter ; [L545] int tmp ; [L546] int tmp___0 ; [L547] int tmp___1 ; [L548] int tmp___2 ; [L551] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L553] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L561] tmp = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] tmp___0 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L581] tmp___2 = __VERIFIER_nondet_int() [L583] COND TRUE \read(tmp___2) [L766] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND TRUE \read(systemActive) [L651] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] 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_product08.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, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 647 SDslu, 632 SDs, 0 SdLazy, 104 SolverSat, 21 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred 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, 411 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.2s 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...