./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.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_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 8e12a99510f3863baa75b24484dbcccd367dbf9c ............................................................................................................................................ 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_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 8e12a99510f3863baa75b24484dbcccd367dbf9c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 12:57:59,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:57:59,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:57:59,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:57:59,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:57:59,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:57:59,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:57:59,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:57:59,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:57:59,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:57:59,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:57:59,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:57:59,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:57:59,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:57:59,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:57:59,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:57:59,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:57:59,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:57:59,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:57:59,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:57:59,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:57:59,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:57:59,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:57:59,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:57:59,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:57:59,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:57:59,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:57:59,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:57:59,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:57:59,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:57:59,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:57:59,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:57:59,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:57:59,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:57:59,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:57:59,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:57:59,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:57:59,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:57:59,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:57:59,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:57:59,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:57:59,938 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:57:59,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:57:59,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:57:59,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:57:59,989 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:57:59,989 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:57:59,989 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:57:59,989 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:57:59,989 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:57:59,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:57:59,990 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:57:59,991 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:57:59,991 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:57:59,991 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:57:59,992 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:57:59,992 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:57:59,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:57:59,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:57:59,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:57:59,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:57:59,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:57:59,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:57:59,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:57:59,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:57:59,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:57:59,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:57:59,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:57:59,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:57:59,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:57:59,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:57:59,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:57:59,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:57:59,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:59,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:57:59,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:57:59,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:57:59,997 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:57:59,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:57:59,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:57:59,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:57:59,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:57:59,998 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_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e12a99510f3863baa75b24484dbcccd367dbf9c [2020-11-22 12:58:00,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:00,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:00,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:00,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:00,335 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:00,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2020-11-22 12:58:00,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/4f9db8b2b/2f79bf32c58d47068a346186df6dec41/FLAGf7b773b69 [2020-11-22 12:58:01,066 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:01,069 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2020-11-22 12:58:01,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/4f9db8b2b/2f79bf32c58d47068a346186df6dec41/FLAGf7b773b69 [2020-11-22 12:58:01,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/4f9db8b2b/2f79bf32c58d47068a346186df6dec41 [2020-11-22 12:58:01,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:01,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:01,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:01,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:01,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:01,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:01" (1/1) ... [2020-11-22 12:58:01,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7b83d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:01, skipping insertion in model container [2020-11-22 12:58:01,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:01" (1/1) ... [2020-11-22 12:58:01,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:01,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:01,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:01,887 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 12:58:01,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1921cc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:01, skipping insertion in model container [2020-11-22 12:58:01,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:01,890 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:58:01,893 INFO L168 Benchmark]: Toolchain (without parser) took 535.92 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 67.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:01,894 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 49.2 MB in the beginning and 49.1 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:01,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.09 ms. Allocated memory is still 92.3 MB. Free memory was 61.7 MB in the beginning and 67.3 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:01,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 49.2 MB in the beginning and 49.1 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.09 ms. Allocated memory is still 92.3 MB. Free memory was 61.7 MB in the beginning and 67.3 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 108]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:58:04,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:04,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:04,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:04,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:04,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:04,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:04,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:04,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:04,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:04,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:04,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:04,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:04,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:04,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:04,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:04,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:04,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:04,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:04,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:04,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:04,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:04,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:04,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:04,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:04,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:04,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:04,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:04,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:04,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:04,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:04,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:04,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:04,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:04,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:04,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:04,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:04,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:04,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:04,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:04,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:04,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:58:04,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:04,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:04,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:04,277 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:04,277 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:04,277 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:04,277 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:04,278 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:04,278 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:04,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:04,279 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:04,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:04,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:04,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:04,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:04,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:04,280 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:04,280 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:58:04,280 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:58:04,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:04,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:04,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:04,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:04,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:04,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:58:04,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:04,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:04,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:04,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:04,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:04,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:04,296 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:58:04,296 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:58:04,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:04,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:04,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:04,297 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_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e12a99510f3863baa75b24484dbcccd367dbf9c [2020-11-22 12:58:04,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:04,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:04,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:04,693 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:04,694 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:04,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2020-11-22 12:58:04,766 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/d35167eb7/78eba3dd2e1e41b8bfde12cd63a236a4/FLAGef14f5401 [2020-11-22 12:58:05,379 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:05,382 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2020-11-22 12:58:05,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/d35167eb7/78eba3dd2e1e41b8bfde12cd63a236a4/FLAGef14f5401 [2020-11-22 12:58:05,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/data/d35167eb7/78eba3dd2e1e41b8bfde12cd63a236a4 [2020-11-22 12:58:05,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:05,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:05,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:05,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:05,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:05,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4590fc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05, skipping insertion in model container [2020-11-22 12:58:05,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:05,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:06,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:06,125 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:58:06,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:06,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:06,211 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:06,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:06,321 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:06,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06 WrapperNode [2020-11-22 12:58:06,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:06,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:06,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:06,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:06,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:06,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:06,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:06,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:06,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... [2020-11-22 12:58:06,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:06,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:06,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:06,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:06,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 12:58:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:58:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:09,648 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:09,649 INFO L298 CfgBuilder]: Removed 282 assume(true) statements. [2020-11-22 12:58:09,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:09 BoogieIcfgContainer [2020-11-22 12:58:09,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:09,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:09,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:09,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:09,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:05" (1/3) ... [2020-11-22 12:58:09,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d7b5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:09, skipping insertion in model container [2020-11-22 12:58:09,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:06" (2/3) ... [2020-11-22 12:58:09,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d7b5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:09, skipping insertion in model container [2020-11-22 12:58:09,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:09" (3/3) ... [2020-11-22 12:58:09,663 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-11-22 12:58:09,679 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:09,685 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:58:09,697 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:58:09,719 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:09,719 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:09,719 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:09,719 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:09,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:09,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:09,720 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:09,720 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:09,736 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-11-22 12:58:09,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:58:09,743 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:09,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:09,744 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:09,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:09,756 INFO L82 PathProgramCache]: Analyzing trace with hash -587287140, now seen corresponding path program 1 times [2020-11-22 12:58:09,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:09,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140063155] [2020-11-22 12:58:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 12:58:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:10,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:58:10,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:10,067 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 12:58:10,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:10,073 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 12:58:10,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140063155] [2020-11-22 12:58:10,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:10,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:58:10,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389294885] [2020-11-22 12:58:10,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:10,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:10,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:10,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:10,095 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2020-11-22 12:58:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:10,137 INFO L93 Difference]: Finished difference Result 375 states and 572 transitions. [2020-11-22 12:58:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:10,138 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 12:58:10,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:10,150 INFO L225 Difference]: With dead ends: 375 [2020-11-22 12:58:10,151 INFO L226 Difference]: Without dead ends: 185 [2020-11-22 12:58:10,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 12:58:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-22 12:58:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-11-22 12:58:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-11-22 12:58:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2020-11-22 12:58:10,204 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2020-11-22 12:58:10,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:10,205 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2020-11-22 12:58:10,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2020-11-22 12:58:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 12:58:10,206 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:10,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:10,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:58:10,424 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:10,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1634044037, now seen corresponding path program 1 times [2020-11-22 12:58:10,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:10,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556051993] [2020-11-22 12:58:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 12:58:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:10,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:58:10,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:10,756 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 12:58:10,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:10,772 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 12:58:10,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556051993] [2020-11-22 12:58:10,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:10,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:58:10,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073501265] [2020-11-22 12:58:10,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:58:10,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:10,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:58:10,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:58:10,775 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 4 states. [2020-11-22 12:58:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:10,809 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2020-11-22 12:58:10,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:58:10,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 12:58:10,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:10,814 INFO L225 Difference]: With dead ends: 185 [2020-11-22 12:58:10,815 INFO L226 Difference]: Without dead ends: 71 [2020-11-22 12:58:10,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 12:58:10,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-22 12:58:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-22 12:58:10,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-22 12:58:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2020-11-22 12:58:10,836 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2020-11-22 12:58:10,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:10,838 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2020-11-22 12:58:10,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:58:10,839 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2020-11-22 12:58:10,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 12:58:10,840 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:10,841 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] [2020-11-22 12:58:11,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:58:11,063 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:11,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:11,064 INFO L82 PathProgramCache]: Analyzing trace with hash 748559286, now seen corresponding path program 1 times [2020-11-22 12:58:11,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:11,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044484766] [2020-11-22 12:58:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 12:58:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:11,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:58:11,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:11,346 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 12:58:11,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:11,363 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 12:58:11,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044484766] [2020-11-22 12:58:11,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:11,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:58:11,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429166590] [2020-11-22 12:58:11,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:58:11,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:11,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:58:11,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:58:11,366 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 4 states. [2020-11-22 12:58:11,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:11,389 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2020-11-22 12:58:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:58:11,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 12:58:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:11,392 INFO L225 Difference]: With dead ends: 136 [2020-11-22 12:58:11,394 INFO L226 Difference]: Without dead ends: 71 [2020-11-22 12:58:11,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 12:58:11,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-22 12:58:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-22 12:58:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-22 12:58:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2020-11-22 12:58:11,409 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2020-11-22 12:58:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:11,409 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2020-11-22 12:58:11,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:58:11,410 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-11-22 12:58:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:58:11,411 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:11,412 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 12:58:11,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:58:11,625 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:11,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:11,625 INFO L82 PathProgramCache]: Analyzing trace with hash -682519882, now seen corresponding path program 1 times [2020-11-22 12:58:11,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:11,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655144138] [2020-11-22 12:58:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 12:58:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:11,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:58:11,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:11,840 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 12:58:11,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:11,843 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 12:58:11,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655144138] [2020-11-22 12:58:11,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:11,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:58:11,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342650529] [2020-11-22 12:58:11,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:58:11,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:11,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:58:11,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:58:11,850 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2020-11-22 12:58:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:11,934 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2020-11-22 12:58:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:58:11,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 12:58:11,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:11,936 INFO L225 Difference]: With dead ends: 145 [2020-11-22 12:58:11,936 INFO L226 Difference]: Without dead ends: 80 [2020-11-22 12:58:11,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:58:11,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-22 12:58:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2020-11-22 12:58:11,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-22 12:58:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2020-11-22 12:58:11,945 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2020-11-22 12:58:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:11,946 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2020-11-22 12:58:11,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:58:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2020-11-22 12:58:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 12:58:11,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:11,947 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, 1, 1, 1, 1, 1] [2020-11-22 12:58:12,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:58:12,164 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:12,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1459548505, now seen corresponding path program 1 times [2020-11-22 12:58:12,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:12,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713290851] [2020-11-22 12:58:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 12:58:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:12,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:58:12,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:12,407 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 12:58:12,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:12,432 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 12:58:12,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713290851] [2020-11-22 12:58:12,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:12,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:58:12,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464945964] [2020-11-22 12:58:12,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:58:12,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:12,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:58:12,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:58:12,435 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand 5 states. [2020-11-22 12:58:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:12,571 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2020-11-22 12:58:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:58:12,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 12:58:12,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:12,573 INFO L225 Difference]: With dead ends: 204 [2020-11-22 12:58:12,573 INFO L226 Difference]: Without dead ends: 132 [2020-11-22 12:58:12,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:58:12,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-22 12:58:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2020-11-22 12:58:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-22 12:58:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2020-11-22 12:58:12,585 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2020-11-22 12:58:12,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:12,585 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2020-11-22 12:58:12,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:58:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2020-11-22 12:58:12,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 12:58:12,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:12,587 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, 1, 1, 1, 1, 1] [2020-11-22 12:58:12,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:58:12,800 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1202962538, now seen corresponding path program 1 times [2020-11-22 12:58:12,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:12,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673048439] [2020-11-22 12:58:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/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 [2020-11-22 12:58:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:13,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:58:13,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:13,043 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 12:58:13,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:13,049 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 12:58:13,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673048439] [2020-11-22 12:58:13,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:13,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:58:13,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038437650] [2020-11-22 12:58:13,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:58:13,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:13,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:58:13,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:58:13,052 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 5 states. [2020-11-22 12:58:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:13,230 INFO L93 Difference]: Finished difference Result 431 states and 600 transitions. [2020-11-22 12:58:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:58:13,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 12:58:13,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:13,235 INFO L225 Difference]: With dead ends: 431 [2020-11-22 12:58:13,236 INFO L226 Difference]: Without dead ends: 350 [2020-11-22 12:58:13,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:58:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-11-22 12:58:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 162. [2020-11-22 12:58:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-22 12:58:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2020-11-22 12:58:13,272 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2020-11-22 12:58:13,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:13,272 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2020-11-22 12:58:13,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:58:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2020-11-22 12:58:13,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:58:13,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:13,278 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, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:13,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:58:13,503 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:13,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:13,503 INFO L82 PathProgramCache]: Analyzing trace with hash 552949620, now seen corresponding path program 1 times [2020-11-22 12:58:13,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:13,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115969953] [2020-11-22 12:58:13,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:13,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:58:13,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:13,737 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 12:58:13,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:13,743 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 12:58:13,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115969953] [2020-11-22 12:58:13,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:13,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:58:13,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104095875] [2020-11-22 12:58:13,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:58:13,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:13,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:58:13,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:58:13,746 INFO L87 Difference]: Start difference. First operand 162 states and 221 transitions. Second operand 5 states. [2020-11-22 12:58:14,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:14,018 INFO L93 Difference]: Finished difference Result 470 states and 642 transitions. [2020-11-22 12:58:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:58:14,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 12:58:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:14,022 INFO L225 Difference]: With dead ends: 470 [2020-11-22 12:58:14,022 INFO L226 Difference]: Without dead ends: 468 [2020-11-22 12:58:14,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:58:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-11-22 12:58:14,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2020-11-22 12:58:14,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-22 12:58:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2020-11-22 12:58:14,047 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 32 [2020-11-22 12:58:14,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:14,048 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2020-11-22 12:58:14,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:58:14,048 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2020-11-22 12:58:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:58:14,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:14,052 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, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:14,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:58:14,269 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1792378863, now seen corresponding path program 1 times [2020-11-22 12:58:14,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:14,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794039909] [2020-11-22 12:58:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:14,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:58:14,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:14,475 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 12:58:14,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:14,505 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 12:58:14,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794039909] [2020-11-22 12:58:14,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:14,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:58:14,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775372675] [2020-11-22 12:58:14,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:58:14,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:14,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:58:14,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:58:14,507 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand 6 states. [2020-11-22 12:58:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:14,621 INFO L93 Difference]: Finished difference Result 428 states and 574 transitions. [2020-11-22 12:58:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:58:14,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-22 12:58:14,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:14,624 INFO L225 Difference]: With dead ends: 428 [2020-11-22 12:58:14,624 INFO L226 Difference]: Without dead ends: 272 [2020-11-22 12:58:14,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:58:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-22 12:58:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 174. [2020-11-22 12:58:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-22 12:58:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2020-11-22 12:58:14,644 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 32 [2020-11-22 12:58:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:14,644 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2020-11-22 12:58:14,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:58:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2020-11-22 12:58:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:58:14,645 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:14,646 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, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:14,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:58:14,859 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:14,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2050544301, now seen corresponding path program 1 times [2020-11-22 12:58:14,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:14,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720283800] [2020-11-22 12:58:14,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:15,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:58:15,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:15,069 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 12:58:15,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:15,083 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 12:58:15,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720283800] [2020-11-22 12:58:15,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:15,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:58:15,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530558840] [2020-11-22 12:58:15,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:58:15,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:15,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:58:15,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:58:15,085 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand 4 states. [2020-11-22 12:58:15,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:15,186 INFO L93 Difference]: Finished difference Result 520 states and 696 transitions. [2020-11-22 12:58:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:58:15,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-22 12:58:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:15,189 INFO L225 Difference]: With dead ends: 520 [2020-11-22 12:58:15,189 INFO L226 Difference]: Without dead ends: 352 [2020-11-22 12:58:15,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 12:58:15,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-11-22 12:58:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 298. [2020-11-22 12:58:15,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-22 12:58:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 393 transitions. [2020-11-22 12:58:15,222 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 393 transitions. Word has length 32 [2020-11-22 12:58:15,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:15,222 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 393 transitions. [2020-11-22 12:58:15,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:58:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 393 transitions. [2020-11-22 12:58:15,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:58:15,223 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:15,223 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:15,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:58:15,446 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:15,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:15,447 INFO L82 PathProgramCache]: Analyzing trace with hash 979497771, now seen corresponding path program 1 times [2020-11-22 12:58:15,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:15,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469656317] [2020-11-22 12:58:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:16,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:17,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:18,146 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:58:18,147 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:58:18,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 12:58:18,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:18 BoogieIcfgContainer [2020-11-22 12:58:18,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:18,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:18,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:18,535 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:18,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:09" (3/4) ... [2020-11-22 12:58:18,538 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:58:18,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_72d64460-e6b7-435d-b0b7-8d70061e8e2a/bin/utaipan/witness.graphml [2020-11-22 12:58:18,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:18,675 INFO L168 Benchmark]: Toolchain (without parser) took 13038.15 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 55.3 MB in the beginning and 37.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:18,676 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 53.8 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:18,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.60 ms. Allocated memory is still 71.3 MB. Free memory was 55.0 MB in the beginning and 39.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:18,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.15 ms. Allocated memory is still 71.3 MB. Free memory was 39.7 MB in the beginning and 35.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:18,677 INFO L168 Benchmark]: Boogie Preprocessor took 65.74 ms. Allocated memory is still 71.3 MB. Free memory was 35.1 MB in the beginning and 31.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:18,677 INFO L168 Benchmark]: RCFGBuilder took 3184.40 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 38.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:18,678 INFO L168 Benchmark]: TraceAbstraction took 8879.86 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 38.3 MB in the beginning and 51.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:18,678 INFO L168 Benchmark]: Witness Printer took 138.49 ms. Allocated memory is still 104.9 MB. Free memory was 51.9 MB in the beginning and 37.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:18,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 53.8 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 684.60 ms. Allocated memory is still 71.3 MB. Free memory was 55.0 MB in the beginning and 39.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.15 ms. Allocated memory is still 71.3 MB. Free memory was 39.7 MB in the beginning and 35.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.74 ms. Allocated memory is still 71.3 MB. Free memory was 35.1 MB in the beginning and 31.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3184.40 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 38.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8879.86 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 38.3 MB in the beginning and 51.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 138.49 ms. Allocated memory is still 104.9 MB. Free memory was 51.9 MB in the beginning and 37.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L789] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L791] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] tmp = __VERIFIER_nondet_int() [L799] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE waterLevel < 2 [L899] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] COND FALSE !(\read(methaneLevelCritical)) [L913] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) [L644] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L647] COND FALSE !(\read(pumpRunning)) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L960] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L963] COND FALSE !(waterLevel < 2) [L967] retValue_acc = 0 [L968] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] tmp = isHighWaterSensorDry() [L749] COND FALSE !(\read(tmp)) [L752] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) [L672] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product53.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 192 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1163 SDtfs, 1361 SDslu, 1442 SDs, 0 SdLazy, 215 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 474 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 693 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 458 ConstructedInterpolants, 0 QuantifiedInterpolants, 24631 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1830 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...