./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8425c566d51ac72c4c499354b129f4f120e9c3b0 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8425c566d51ac72c4c499354b129f4f120e9c3b0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 14:03:49,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:03:49,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:03:49,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:03:49,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:03:49,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:03:49,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:03:49,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:03:49,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:03:49,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:03:49,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:03:49,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:03:49,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:03:49,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:03:49,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:03:49,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:03:49,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:03:49,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:03:49,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:03:49,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:03:49,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:03:49,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:03:49,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:03:49,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:03:49,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:03:49,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:03:49,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:03:49,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:03:49,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:03:49,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:03:49,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:03:49,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:03:49,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:03:49,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:03:49,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:03:49,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:03:49,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:03:49,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:03:49,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:03:49,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:03:49,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:03:49,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:03:49,849 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:03:49,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:03:49,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:03:49,850 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:03:49,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:03:49,850 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:03:49,851 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:03:49,851 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:03:49,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:03:49,851 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:03:49,851 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:03:49,851 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:03:49,851 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:03:49,851 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:03:49,852 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:03:49,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:03:49,852 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:03:49,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:03:49,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:03:49,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:03:49,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:03:49,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:03:49,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:03:49,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:03:49,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:03:49,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:03:49,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:03:49,855 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:03:49,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:03:49,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:03:49,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:03:49,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:03:49,855 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cea35be8-a00f-4269-a227-9705633db5b2/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(__VERIFIER_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 -> 8425c566d51ac72c4c499354b129f4f120e9c3b0 [2019-12-07 14:03:49,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:03:49,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:03:49,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:03:49,970 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:03:49,970 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:03:49,971 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2019-12-07 14:03:50,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/0d07f13de/77a1bbe6e7d04236adfb5c0e5397bb6f/FLAGcb365274f [2019-12-07 14:03:50,448 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:03:50,448 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2019-12-07 14:03:50,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/0d07f13de/77a1bbe6e7d04236adfb5c0e5397bb6f/FLAGcb365274f [2019-12-07 14:03:50,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/0d07f13de/77a1bbe6e7d04236adfb5c0e5397bb6f [2019-12-07 14:03:50,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:03:50,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:03:50,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:03:50,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:03:50,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:03:50,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:03:50" (1/1) ... [2019-12-07 14:03:50,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5cd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:50, skipping insertion in model container [2019-12-07 14:03:50,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:03:50" (1/1) ... [2019-12-07 14:03:50,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:03:50,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:03:51,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:03:51,082 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) [2019-12-07 14:03:51,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c77ebcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:51, skipping insertion in model container [2019-12-07 14:03:51,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:03:51,083 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 14:03:51,085 INFO L168 Benchmark]: Toolchain (without parser) took 281.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:03:51,085 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:03:51,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:03:51,088 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 216]: 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 0.1.25-f470102 [2019-12-07 14:03:52,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:03:52,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:03:52,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:03:52,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:03:52,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:03:52,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:03:52,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:03:52,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:03:52,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:03:52,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:03:52,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:03:52,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:03:52,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:03:52,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:03:52,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:03:52,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:03:52,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:03:52,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:03:52,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:03:52,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:03:52,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:03:52,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:03:52,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:03:52,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:03:52,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:03:52,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:03:52,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:03:52,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:03:52,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:03:52,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:03:52,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:03:52,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:03:52,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:03:52,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:03:52,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:03:52,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:03:52,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:03:52,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:03:52,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:03:52,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:03:52,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:03:52,295 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:03:52,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:03:52,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:03:52,296 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:03:52,296 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:03:52,296 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:03:52,296 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:03:52,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:03:52,297 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:03:52,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:03:52,297 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:03:52,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:03:52,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:03:52,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:03:52,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:03:52,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:03:52,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:03:52,298 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:03:52,298 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:03:52,298 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:03:52,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:03:52,299 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:03:52,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:03:52,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:03:52,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:03:52,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:03:52,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:03:52,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:03:52,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:03:52,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:03:52,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:03:52,300 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:03:52,300 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:03:52,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:03:52,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:03:52,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:03:52,301 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_cea35be8-a00f-4269-a227-9705633db5b2/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(__VERIFIER_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 -> 8425c566d51ac72c4c499354b129f4f120e9c3b0 [2019-12-07 14:03:52,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:03:52,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:03:52,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:03:52,483 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:03:52,483 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:03:52,484 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2019-12-07 14:03:52,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/82b3654ee/effd4fac0eaa4174b99a0400baf1000d/FLAG00ee65382 [2019-12-07 14:03:52,977 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:03:52,978 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2019-12-07 14:03:52,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/82b3654ee/effd4fac0eaa4174b99a0400baf1000d/FLAG00ee65382 [2019-12-07 14:03:53,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/data/82b3654ee/effd4fac0eaa4174b99a0400baf1000d [2019-12-07 14:03:53,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:03:53,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:03:53,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:03:53,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:03:53,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:03:53,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53, skipping insertion in model container [2019-12-07 14:03:53,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:03:53,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:03:53,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:03:53,608 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 14:03:53,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:03:53,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:03:53,668 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:03:53,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:03:53,729 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:03:53,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53 WrapperNode [2019-12-07 14:03:53,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:03:53,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:03:53,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:03:53,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:03:53,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:03:53,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:03:53,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:03:53,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:03:53,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... [2019-12-07 14:03:53,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:03:53,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:03:53,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:03:53,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:03:53,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/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 [2019-12-07 14:03:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:03:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 14:03:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:03:53,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:03:54,463 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:03:54,463 INFO L287 CfgBuilder]: Removed 202 assume(true) statements. [2019-12-07 14:03:54,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:03:54 BoogieIcfgContainer [2019-12-07 14:03:54,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:03:54,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:03:54,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:03:54,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:03:54,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:03:53" (1/3) ... [2019-12-07 14:03:54,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac8f2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:03:54, skipping insertion in model container [2019-12-07 14:03:54,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:03:53" (2/3) ... [2019-12-07 14:03:54,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac8f2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:03:54, skipping insertion in model container [2019-12-07 14:03:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:03:54" (3/3) ... [2019-12-07 14:03:54,470 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2019-12-07 14:03:54,478 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:03:54,483 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 14:03:54,492 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 14:03:54,511 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:03:54,511 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:03:54,511 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:03:54,512 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:03:54,512 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:03:54,512 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:03:54,512 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:03:54,512 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:03:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-12-07 14:03:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 14:03:54,531 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:03:54,532 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:03:54,532 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:03:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:03:54,537 INFO L82 PathProgramCache]: Analyzing trace with hash 301971860, now seen corresponding path program 1 times [2019-12-07 14:03:54,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:03:54,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827864282] [2019-12-07 14:03:54,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/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 [2019-12-07 14:03:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:03:54,692 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:03:54,696 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:03:54,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:54,707 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:03:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:54,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827864282] [2019-12-07 14:03:54,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:03:54,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:03:54,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850258797] [2019-12-07 14:03:54,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:03:54,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:03:54,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:03:54,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:03:54,726 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-12-07 14:03:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:03:54,750 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2019-12-07 14:03:54,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:03:54,751 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 14:03:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:03:54,760 INFO L225 Difference]: With dead ends: 268 [2019-12-07 14:03:54,760 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 14:03:54,763 INFO L630 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 [2019-12-07 14:03:54,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 14:03:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-12-07 14:03:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-12-07 14:03:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2019-12-07 14:03:54,796 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2019-12-07 14:03:54,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:03:54,796 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2019-12-07 14:03:54,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:03:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2019-12-07 14:03:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 14:03:54,797 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:03:54,797 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:03:54,998 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:03:54,999 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:03:55,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:03:55,000 INFO L82 PathProgramCache]: Analyzing trace with hash -609058893, now seen corresponding path program 1 times [2019-12-07 14:03:55,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:03:55,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95131077] [2019-12-07 14:03:55,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/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 [2019-12-07 14:03:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:03:55,251 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:03:55,252 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:03:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:55,269 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:03:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:55,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95131077] [2019-12-07 14:03:55,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:03:55,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:03:55,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908333023] [2019-12-07 14:03:55,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:03:55,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:03:55,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:03:55,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:03:55,282 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 4 states. [2019-12-07 14:03:55,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:03:55,297 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2019-12-07 14:03:55,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:03:55,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 14:03:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:03:55,299 INFO L225 Difference]: With dead ends: 133 [2019-12-07 14:03:55,299 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 14:03:55,300 INFO L630 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 [2019-12-07 14:03:55,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 14:03:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-12-07 14:03:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 14:03:55,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2019-12-07 14:03:55,306 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2019-12-07 14:03:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:03:55,306 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2019-12-07 14:03:55,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:03:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2019-12-07 14:03:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 14:03:55,307 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:03:55,308 INFO L410 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] [2019-12-07 14:03:55,508 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:03:55,509 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:03:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:03:55,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1636802596, now seen corresponding path program 1 times [2019-12-07 14:03:55,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:03:55,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678230342] [2019-12-07 14:03:55,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/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 [2019-12-07 14:03:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:03:55,737 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:03:55,739 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:03:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:55,747 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:03:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:55,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678230342] [2019-12-07 14:03:55,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:03:55,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 14:03:55,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006677356] [2019-12-07 14:03:55,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:03:55,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:03:55,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:03:55,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:03:55,756 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 4 states. [2019-12-07 14:03:55,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:03:55,773 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions. [2019-12-07 14:03:55,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:03:55,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 14:03:55,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:03:55,774 INFO L225 Difference]: With dead ends: 178 [2019-12-07 14:03:55,775 INFO L226 Difference]: Without dead ends: 129 [2019-12-07 14:03:55,775 INFO L630 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 [2019-12-07 14:03:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-12-07 14:03:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2019-12-07 14:03:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 14:03:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2019-12-07 14:03:55,785 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2019-12-07 14:03:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:03:55,785 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2019-12-07 14:03:55,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:03:55,785 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2019-12-07 14:03:55,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 14:03:55,786 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:03:55,786 INFO L410 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] [2019-12-07 14:03:55,986 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:03:55,988 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:03:55,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:03:55,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1444892134, now seen corresponding path program 1 times [2019-12-07 14:03:55,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:03:55,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329380510] [2019-12-07 14:03:55,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/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 [2019-12-07 14:03:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:03:56,209 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:03:56,211 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:03:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:56,217 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:03:56,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:56,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329380510] [2019-12-07 14:03:56,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:03:56,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:03:56,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768791423] [2019-12-07 14:03:56,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:03:56,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:03:56,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:03:56,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:03:56,221 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2019-12-07 14:03:56,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:03:56,293 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2019-12-07 14:03:56,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:03:56,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 14:03:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:03:56,295 INFO L225 Difference]: With dead ends: 169 [2019-12-07 14:03:56,295 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 14:03:56,295 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:03:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 14:03:56,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-12-07 14:03:56,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 14:03:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2019-12-07 14:03:56,308 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2019-12-07 14:03:56,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:03:56,308 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2019-12-07 14:03:56,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:03:56,308 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2019-12-07 14:03:56,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 14:03:56,309 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:03:56,309 INFO L410 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, 1] [2019-12-07 14:03:56,510 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:03:56,512 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:03:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:03:56,513 INFO L82 PathProgramCache]: Analyzing trace with hash 266687089, now seen corresponding path program 1 times [2019-12-07 14:03:56,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:03:56,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72091315] [2019-12-07 14:03:56,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/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 [2019-12-07 14:03:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:03:56,698 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:03:56,699 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:03:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:56,712 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:03:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:03:56,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72091315] [2019-12-07 14:03:56,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:03:56,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 14:03:56,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841544401] [2019-12-07 14:03:56,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:03:56,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:03:56,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:03:56,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:03:56,740 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand 8 states. [2019-12-07 14:03:57,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:03:57,106 INFO L93 Difference]: Finished difference Result 1073 states and 1567 transitions. [2019-12-07 14:03:57,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 14:03:57,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 14:03:57,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:03:57,111 INFO L225 Difference]: With dead ends: 1073 [2019-12-07 14:03:57,111 INFO L226 Difference]: Without dead ends: 982 [2019-12-07 14:03:57,112 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 14:03:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2019-12-07 14:03:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 247. [2019-12-07 14:03:57,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-12-07 14:03:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2019-12-07 14:03:57,137 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 27 [2019-12-07 14:03:57,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:03:57,137 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2019-12-07 14:03:57,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:03:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2019-12-07 14:03:57,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 14:03:57,139 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:03:57,139 INFO L410 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, 1, 1] [2019-12-07 14:03:57,339 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 14:03:57,340 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:03:57,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:03:57,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1433576653, now seen corresponding path program 1 times [2019-12-07 14:03:57,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:03:57,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82105301] [2019-12-07 14:03:57,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 14:03:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:03:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:03:59,445 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:03:59,445 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:03:59,645 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 14:03:59,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:03:59 BoogieIcfgContainer [2019-12-07 14:03:59,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:03:59,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:03:59,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:03:59,739 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:03:59,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:03:54" (3/4) ... [2019-12-07 14:03:59,740 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:03:59,797 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cea35be8-a00f-4269-a227-9705633db5b2/bin/utaipan/witness.graphml [2019-12-07 14:03:59,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:03:59,799 INFO L168 Benchmark]: Toolchain (without parser) took 6471.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:03:59,799 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:03:59,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:03:59,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:03:59,800 INFO L168 Benchmark]: Boogie Preprocessor took 36.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:03:59,800 INFO L168 Benchmark]: RCFGBuilder took 646.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:03:59,801 INFO L168 Benchmark]: TraceAbstraction took 5272.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:03:59,801 INFO L168 Benchmark]: Witness Printer took 59.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:03:59,802 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 400.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 646.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5272.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 59.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; [L131] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L828] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L835] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L637] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L644] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 137 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 1309 SDslu, 1094 SDs, 0 SdLazy, 164 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=5, 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, 5 MinimizatonAttempts, 790 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 12919 SizeOfPredicates, 6 NumberOfNonLiveVariables, 925 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...