./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 351e1061dd8393b15ba9fc7223df15ae9d3170ab ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 351e1061dd8393b15ba9fc7223df15ae9d3170ab .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:41:31,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:41:31,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:41:31,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:41:31,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:41:31,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:41:31,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:41:31,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:41:31,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:41:31,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:41:31,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:41:31,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:41:31,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:41:31,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:41:31,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:41:31,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:41:31,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:41:31,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:41:31,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:41:31,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:41:31,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:41:31,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:41:31,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:41:31,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:41:31,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:41:31,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:41:31,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:41:31,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:41:31,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:41:31,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:41:31,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:41:31,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:41:31,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:41:31,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:41:31,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:41:31,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:41:31,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:41:31,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:41:31,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:41:31,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:41:31,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:41:31,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:41:31,801 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:41:31,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:41:31,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:41:31,802 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:41:31,803 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:41:31,803 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:41:31,803 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:41:31,803 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:41:31,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:41:31,803 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:41:31,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:41:31,803 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:41:31,804 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:41:31,804 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:41:31,804 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:41:31,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:41:31,804 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:41:31,805 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:41:31,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:41:31,806 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:41:31,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:41:31,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:41:31,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:41:31,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:41:31,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:41:31,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:41:31,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:41:31,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:41:31,807 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:41:31,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:41:31,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:41:31,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:41:31,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:41:31,808 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2019-12-07 20:41:31,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:41:31,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:41:31,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:41:31,923 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:41:31,923 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:41:31,924 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-12-07 20:41:31,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/d0d9c3e9b/3f34827ab3114d4ebc6b0b9734d549d7/FLAGffc3a3c04 [2019-12-07 20:41:32,432 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:41:32,432 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-12-07 20:41:32,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/d0d9c3e9b/3f34827ab3114d4ebc6b0b9734d549d7/FLAGffc3a3c04 [2019-12-07 20:41:32,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/d0d9c3e9b/3f34827ab3114d4ebc6b0b9734d549d7 [2019-12-07 20:41:32,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:41:32,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:41:32,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:41:32,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:41:32,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:41:32,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:41:32" (1/1) ... [2019-12-07 20:41:32,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:32, skipping insertion in model container [2019-12-07 20:41:32,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:41:32" (1/1) ... [2019-12-07 20:41:32,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:41:32,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:41:32,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:41:32,750 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 20:41:32,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4fdc4a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:32, skipping insertion in model container [2019-12-07 20:41:32,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:41:32,751 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:41:32,753 INFO L168 Benchmark]: Toolchain (without parser) took 299.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -144.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:41:32,753 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:41:32,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:41:32,755 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 558]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:41:33,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:41:33,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:41:33,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:41:33,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:41:33,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:41:33,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:41:33,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:41:33,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:41:33,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:41:33,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:41:33,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:41:33,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:41:33,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:41:33,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:41:33,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:41:33,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:41:33,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:41:33,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:41:33,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:41:33,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:41:33,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:41:33,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:41:33,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:41:33,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:41:33,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:41:33,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:41:33,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:41:33,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:41:33,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:41:33,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:41:33,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:41:33,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:41:33,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:41:33,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:41:33,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:41:33,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:41:33,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:41:33,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:41:33,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:41:33,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:41:33,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:41:33,941 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:41:33,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:41:33,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:41:33,942 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:41:33,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:41:33,942 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:41:33,942 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:41:33,942 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:41:33,943 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:41:33,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:41:33,943 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:41:33,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:41:33,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:41:33,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:41:33,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:41:33,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:41:33,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:41:33,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:41:33,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:41:33,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:41:33,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:41:33,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:41:33,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:41:33,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:41:33,946 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:41:33,946 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:41:33,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:41:33,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:41:33,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:41:33,947 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2019-12-07 20:41:34,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:41:34,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:41:34,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:41:34,124 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:41:34,125 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:41:34,125 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-12-07 20:41:34,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/918879921/456b0c9060334b8a92e7a4e707e4dc28/FLAG3763fad95 [2019-12-07 20:41:34,539 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:41:34,540 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-12-07 20:41:34,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/918879921/456b0c9060334b8a92e7a4e707e4dc28/FLAG3763fad95 [2019-12-07 20:41:34,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/data/918879921/456b0c9060334b8a92e7a4e707e4dc28 [2019-12-07 20:41:34,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:41:34,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:41:34,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:41:34,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:41:34,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:41:34,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:34,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34, skipping insertion in model container [2019-12-07 20:41:34,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:34,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:41:34,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:41:34,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:41:34,829 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:41:34,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:41:34,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:41:34,881 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:41:34,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:41:34,949 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:41:34,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34 WrapperNode [2019-12-07 20:41:34,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:41:34,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:41:34,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:41:34,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:41:34,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:34,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:41:35,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:41:35,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:41:35,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:41:35,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... [2019-12-07 20:41:35,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:41:35,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:41:35,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:41:35,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:41:35,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:41:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:41:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:41:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:41:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:41:35,876 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:41:35,876 INFO L287 CfgBuilder]: Removed 360 assume(true) statements. [2019-12-07 20:41:35,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:41:35 BoogieIcfgContainer [2019-12-07 20:41:35,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:41:35,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:41:35,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:41:35,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:41:35,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:41:34" (1/3) ... [2019-12-07 20:41:35,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25449208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:41:35, skipping insertion in model container [2019-12-07 20:41:35,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:41:34" (2/3) ... [2019-12-07 20:41:35,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25449208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:41:35, skipping insertion in model container [2019-12-07 20:41:35,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:41:35" (3/3) ... [2019-12-07 20:41:35,882 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2019-12-07 20:41:35,889 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:41:35,895 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:41:35,903 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:41:35,921 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:41:35,921 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:41:35,921 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:41:35,921 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:41:35,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:41:35,921 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:41:35,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:41:35,921 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:41:35,936 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2019-12-07 20:41:35,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 20:41:35,941 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:41:35,942 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:41:35,942 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:41:35,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:41:35,946 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2019-12-07 20:41:35,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:41:35,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180613071] [2019-12-07 20:41:35,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:41:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:41:36,099 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:41:36,103 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:41:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:36,114 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:41:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:36,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180613071] [2019-12-07 20:41:36,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:41:36,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:41:36,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328685526] [2019-12-07 20:41:36,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:41:36,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:41:36,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:41:36,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:41:36,137 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2019-12-07 20:41:36,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:41:36,173 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2019-12-07 20:41:36,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:41:36,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 20:41:36,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:41:36,188 INFO L225 Difference]: With dead ends: 460 [2019-12-07 20:41:36,188 INFO L226 Difference]: Without dead ends: 229 [2019-12-07 20:41:36,192 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:41:36,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-12-07 20:41:36,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-12-07 20:41:36,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-12-07 20:41:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2019-12-07 20:41:36,236 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2019-12-07 20:41:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:41:36,237 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2019-12-07 20:41:36,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:41:36,237 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2019-12-07 20:41:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:41:36,238 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:41:36,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:41:36,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:41:36,440 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:41:36,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:41:36,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2019-12-07 20:41:36,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:41:36,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223147057] [2019-12-07 20:41:36,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:41:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:41:36,591 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:41:36,592 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:41:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:36,606 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:41:36,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:36,615 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223147057] [2019-12-07 20:41:36,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:41:36,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:41:36,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148746990] [2019-12-07 20:41:36,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:41:36,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:41:36,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:41:36,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:41:36,618 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 4 states. [2019-12-07 20:41:36,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:41:36,634 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2019-12-07 20:41:36,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:41:36,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 20:41:36,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:41:36,635 INFO L225 Difference]: With dead ends: 229 [2019-12-07 20:41:36,635 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 20:41:36,637 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:41:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 20:41:36,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-12-07 20:41:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-07 20:41:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2019-12-07 20:41:36,644 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2019-12-07 20:41:36,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:41:36,644 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2019-12-07 20:41:36,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:41:36,644 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2019-12-07 20:41:36,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:41:36,645 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:41:36,645 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:41:36,846 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:41:36,846 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:41:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:41:36,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2019-12-07 20:41:36,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:41:36,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437838207] [2019-12-07 20:41:36,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:41:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:41:36,951 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:41:36,952 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:41:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:36,959 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:41:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:36,966 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437838207] [2019-12-07 20:41:36,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:41:36,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:41:36,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750089685] [2019-12-07 20:41:36,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:41:36,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:41:36,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:41:36,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:41:36,967 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 4 states. [2019-12-07 20:41:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:41:37,019 INFO L93 Difference]: Finished difference Result 274 states and 406 transitions. [2019-12-07 20:41:37,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:41:37,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 20:41:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:41:37,022 INFO L225 Difference]: With dead ends: 274 [2019-12-07 20:41:37,022 INFO L226 Difference]: Without dead ends: 193 [2019-12-07 20:41:37,022 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:41:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-12-07 20:41:37,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 108. [2019-12-07 20:41:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-12-07 20:41:37,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2019-12-07 20:41:37,034 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 24 [2019-12-07 20:41:37,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:41:37,034 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2019-12-07 20:41:37,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:41:37,034 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2019-12-07 20:41:37,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 20:41:37,035 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:41:37,035 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:41:37,236 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:41:37,237 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:41:37,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:41:37,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2019-12-07 20:41:37,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:41:37,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223452158] [2019-12-07 20:41:37,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 20:41:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:41:37,413 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:41:37,414 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:41:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:37,420 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:41:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:37,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223452158] [2019-12-07 20:41:37,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:41:37,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:41:37,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770254189] [2019-12-07 20:41:37,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:41:37,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:41:37,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:41:37,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:41:37,423 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand 3 states. [2019-12-07 20:41:37,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:41:37,485 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2019-12-07 20:41:37,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:41:37,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-07 20:41:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:41:37,486 INFO L225 Difference]: With dead ends: 218 [2019-12-07 20:41:37,486 INFO L226 Difference]: Without dead ends: 116 [2019-12-07 20:41:37,487 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:41:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-12-07 20:41:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2019-12-07 20:41:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-12-07 20:41:37,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2019-12-07 20:41:37,499 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 27 [2019-12-07 20:41:37,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:41:37,499 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-12-07 20:41:37,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:41:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2019-12-07 20:41:37,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 20:41:37,500 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:41:37,501 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:41:37,701 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:41:37,702 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:41:37,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:41:37,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2019-12-07 20:41:37,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:41:37,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67465511] [2019-12-07 20:41:37,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 20:41:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:41:37,823 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:41:37,824 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:41:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:37,838 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:41:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:41:37,861 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67465511] [2019-12-07 20:41:37,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:41:37,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:41:37,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390610363] [2019-12-07 20:41:37,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:41:37,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:41:37,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:41:37,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:41:37,863 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand 8 states. [2019-12-07 20:41:38,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:41:38,253 INFO L93 Difference]: Finished difference Result 1297 states and 1882 transitions. [2019-12-07 20:41:38,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 20:41:38,253 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 20:41:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:41:38,258 INFO L225 Difference]: With dead ends: 1297 [2019-12-07 20:41:38,259 INFO L226 Difference]: Without dead ends: 1189 [2019-12-07 20:41:38,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 20:41:38,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2019-12-07 20:41:38,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 282. [2019-12-07 20:41:38,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-12-07 20:41:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 396 transitions. [2019-12-07 20:41:38,284 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 396 transitions. Word has length 27 [2019-12-07 20:41:38,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:41:38,285 INFO L462 AbstractCegarLoop]: Abstraction has 282 states and 396 transitions. [2019-12-07 20:41:38,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:41:38,285 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 396 transitions. [2019-12-07 20:41:38,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 20:41:38,286 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:41:38,286 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:41:38,486 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:41:38,487 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:41:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:41:38,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2019-12-07 20:41:38,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:41:38,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775075487] [2019-12-07 20:41:38,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 20:41:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:41:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:41:40,369 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:41:40,370 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:41:40,570 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:41:40,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:41:40 BoogieIcfgContainer [2019-12-07 20:41:40,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:41:40,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:41:40,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:41:40,648 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:41:40,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:41:35" (3/4) ... [2019-12-07 20:41:40,649 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:41:40,701 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_85f3470d-4b6b-45bd-a92c-a949053cfd0a/bin/utaipan/witness.graphml [2019-12-07 20:41:40,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:41:40,703 INFO L168 Benchmark]: Toolchain (without parser) took 6141.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -122.5 MB). Peak memory consumption was 95.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:41:40,703 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:41:40,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:41:40,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:41:40,704 INFO L168 Benchmark]: Boogie Preprocessor took 47.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:41:40,704 INFO L168 Benchmark]: RCFGBuilder took 822.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.7 MB in the end (delta: 104.7 MB). Peak memory consumption was 104.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:41:40,704 INFO L168 Benchmark]: TraceAbstraction took 4769.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 985.7 MB in the beginning and 1.1 GB in the end (delta: -92.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:41:40,705 INFO L168 Benchmark]: Witness Printer took 54.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:41:40,706 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 387.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 822.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.7 MB in the end (delta: 104.7 MB). Peak memory consumption was 104.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4769.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 985.7 MB in the beginning and 1.1 GB in the end (delta: -92.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 54.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L969] int retValue_acc ; [L970] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L367] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L341] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L98] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L996] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 233 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 860 SDtfs, 1859 SDslu, 1507 SDs, 0 SdLazy, 227 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 994 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 11044 SizeOfPredicates, 6 NumberOfNonLiveVariables, 928 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...