./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.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_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 cd9d3373e3670d73493569b1c43b551709fc0f6c ...................................................................................................................................... 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_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 cd9d3373e3670d73493569b1c43b551709fc0f6c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:52:50,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:52:50,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:52:50,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:52:50,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:52:50,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:52:50,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:52:50,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:52:50,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:52:50,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:52:50,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:52:50,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:52:50,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:52:50,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:52:50,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:52:50,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:52:50,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:52:50,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:52:50,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:52:50,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:52:50,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:52:50,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:52:50,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:52:50,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:52:50,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:52:50,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:52:50,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:52:50,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:52:50,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:52:50,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:52:50,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:52:50,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:52:50,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:52:50,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:52:50,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:52:50,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:52:50,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:52:50,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:52:50,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:52:50,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:52:50,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:52:50,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:52:50,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:52:50,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:52:50,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:52:50,124 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:52:50,124 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:52:50,124 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:52:50,124 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:52:50,124 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:52:50,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:52:50,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:52:50,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:52:50,125 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:52:50,125 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:52:50,125 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:52:50,125 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:52:50,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:52:50,126 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:52:50,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:52:50,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:52:50,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:52:50,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:52:50,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:52:50,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:52:50,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:52:50,127 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:52:50,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:52:50,127 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:52:50,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:52:50,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:52:50,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:52:50,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:52:50,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:52:50,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:52:50,129 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_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 -> cd9d3373e3670d73493569b1c43b551709fc0f6c [2019-12-07 20:52:50,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:52:50,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:52:50,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:52:50,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:52:50,250 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:52:50,251 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2019-12-07 20:52:50,292 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/9e6c4d295/450465db76594c298e0b92c0bb85f1a4/FLAGeb1b2d1ab [2019-12-07 20:52:50,638 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:52:50,638 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2019-12-07 20:52:50,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/9e6c4d295/450465db76594c298e0b92c0bb85f1a4/FLAGeb1b2d1ab [2019-12-07 20:52:50,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/9e6c4d295/450465db76594c298e0b92c0bb85f1a4 [2019-12-07 20:52:50,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:52:50,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:52:50,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:52:50,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:52:50,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:52:50,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:52:50" (1/1) ... [2019-12-07 20:52:50,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@881d7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:50, skipping insertion in model container [2019-12-07 20:52:50,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:52:50" (1/1) ... [2019-12-07 20:52:50,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:52:50,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:52:50,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:52:50,924 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 20:52:50,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d96e4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:50, skipping insertion in model container [2019-12-07 20:52:50,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:52:50,925 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:52:50,927 INFO L168 Benchmark]: Toolchain (without parser) took 269.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:52:50,927 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:52:50,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:52:50,929 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -166.5 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: 97]: 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 20:52:52,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:52:52,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:52:52,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:52:52,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:52:52,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:52:52,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:52:52,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:52:52,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:52:52,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:52:52,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:52:52,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:52:52,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:52:52,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:52:52,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:52:52,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:52:52,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:52:52,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:52:52,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:52:52,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:52:52,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:52:52,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:52:52,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:52:52,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:52:52,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:52:52,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:52:52,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:52:52,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:52:52,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:52:52,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:52:52,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:52:52,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:52:52,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:52:52,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:52:52,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:52:52,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:52:52,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:52:52,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:52:52,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:52:52,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:52:52,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:52:52,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:52:52,125 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:52:52,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:52:52,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:52:52,126 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:52:52,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:52:52,127 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:52:52,127 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:52:52,127 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:52:52,127 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:52:52,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:52:52,128 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:52:52,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:52:52,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:52:52,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:52:52,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:52:52,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:52:52,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:52:52,130 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:52:52,130 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:52:52,130 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:52:52,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:52:52,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:52:52,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:52:52,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:52:52,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:52:52,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:52:52,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:52:52,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:52:52,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:52:52,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:52:52,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:52:52,132 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:52:52,133 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:52:52,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:52:52,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:52:52,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:52:52,133 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_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 -> cd9d3373e3670d73493569b1c43b551709fc0f6c [2019-12-07 20:52:52,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:52:52,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:52:52,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:52:52,319 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:52:52,319 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:52:52,320 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2019-12-07 20:52:52,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/2a8ea2375/b1843f2a93b248b1970da9f60cab875e/FLAGa9e18f1a5 [2019-12-07 20:52:52,722 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:52:52,722 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2019-12-07 20:52:52,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/2a8ea2375/b1843f2a93b248b1970da9f60cab875e/FLAGa9e18f1a5 [2019-12-07 20:52:52,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/data/2a8ea2375/b1843f2a93b248b1970da9f60cab875e [2019-12-07 20:52:52,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:52:52,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:52:52,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:52:52,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:52:52,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:52:52,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:52:52" (1/1) ... [2019-12-07 20:52:52,747 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 08:52:52, skipping insertion in model container [2019-12-07 20:52:52,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:52:52" (1/1) ... [2019-12-07 20:52:52,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:52:52,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:52:52,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:52:53,002 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:52:53,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:52:53,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:52:53,055 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:52:53,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:52:53,114 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:52:53,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53 WrapperNode [2019-12-07 20:52:53,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:52:53,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:52:53,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:52:53,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:52:53,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:52:53,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:52:53,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:52:53,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:52:53,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... [2019-12-07 20:52:53,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:52:53,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:52:53,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:52:53,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:52:53,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 20:52:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:52:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:52:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:52:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:52:53,709 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:52:53,710 INFO L287 CfgBuilder]: Removed 120 assume(true) statements. [2019-12-07 20:52:53,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:52:53 BoogieIcfgContainer [2019-12-07 20:52:53,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:52:53,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:52:53,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:52:53,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:52:53,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:52:52" (1/3) ... [2019-12-07 20:52:53,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136ce41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:52:53, skipping insertion in model container [2019-12-07 20:52:53,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:52:53" (2/3) ... [2019-12-07 20:52:53,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136ce41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:52:53, skipping insertion in model container [2019-12-07 20:52:53,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:52:53" (3/3) ... [2019-12-07 20:52:53,718 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2019-12-07 20:52:53,727 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:52:53,734 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:52:53,745 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:52:53,764 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:52:53,764 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:52:53,764 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:52:53,764 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:52:53,764 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:52:53,764 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:52:53,764 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:52:53,765 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:52:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-12-07 20:52:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 20:52:53,782 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:53,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:52:53,783 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:53,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:53,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1782116946, now seen corresponding path program 1 times [2019-12-07 20:52:53,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:53,796 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902217602] [2019-12-07 20:52:53,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 20:52:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:53,936 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:52:53,940 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:53,952 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 20:52:53,952 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:53,957 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 20:52:53,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902217602] [2019-12-07 20:52:53,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:52:53,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:52:53,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778573072] [2019-12-07 20:52:53,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:52:53,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:53,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:52:53,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:52:53,973 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-12-07 20:52:53,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:53,996 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2019-12-07 20:52:53,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:52:53,998 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 20:52:53,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:54,006 INFO L225 Difference]: With dead ends: 172 [2019-12-07 20:52:54,007 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 20:52:54,010 INFO L630 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 [2019-12-07 20:52:54,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 20:52:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-12-07 20:52:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 20:52:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-12-07 20:52:54,039 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2019-12-07 20:52:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:54,040 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-12-07 20:52:54,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:52:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-12-07 20:52:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 20:52:54,040 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:54,041 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:52:54,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:52:54,242 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:54,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:54,243 INFO L82 PathProgramCache]: Analyzing trace with hash 735360049, now seen corresponding path program 1 times [2019-12-07 20:52:54,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:54,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649369198] [2019-12-07 20:52:54,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 20:52:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:54,476 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:52:54,478 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:54,491 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 20:52:54,491 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:54,499 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 20:52:54,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649369198] [2019-12-07 20:52:54,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:52:54,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:52:54,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583245273] [2019-12-07 20:52:54,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:52:54,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:54,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:52:54,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:52:54,501 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 4 states. [2019-12-07 20:52:54,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:54,512 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2019-12-07 20:52:54,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:52:54,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 20:52:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:54,513 INFO L225 Difference]: With dead ends: 85 [2019-12-07 20:52:54,513 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 20:52:54,514 INFO L630 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 [2019-12-07 20:52:54,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 20:52:54,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 20:52:54,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 20:52:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-12-07 20:52:54,518 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2019-12-07 20:52:54,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:54,519 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-12-07 20:52:54,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:52:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-12-07 20:52:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 20:52:54,519 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:54,520 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] [2019-12-07 20:52:54,720 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:52:54,720 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:54,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:54,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2019-12-07 20:52:54,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:54,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318576339] [2019-12-07 20:52:54,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 20:52:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:54,831 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:52:54,832 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:54,841 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 20:52:54,841 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:54,848 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 20:52:54,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318576339] [2019-12-07 20:52:54,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:52:54,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:52:54,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589388928] [2019-12-07 20:52:54,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:52:54,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:54,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:52:54,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:52:54,850 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 4 states. [2019-12-07 20:52:54,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:54,899 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2019-12-07 20:52:54,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:52:54,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 20:52:54,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:54,900 INFO L225 Difference]: With dead ends: 128 [2019-12-07 20:52:54,901 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 20:52:54,901 INFO L630 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 [2019-12-07 20:52:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 20:52:54,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 58. [2019-12-07 20:52:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 20:52:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-12-07 20:52:54,909 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2019-12-07 20:52:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:54,909 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-12-07 20:52:54,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:52:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-12-07 20:52:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 20:52:54,910 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:54,910 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] [2019-12-07 20:52:55,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:52:55,111 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:55,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:55,112 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2019-12-07 20:52:55,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:55,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618567706] [2019-12-07 20:52:55,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 20:52:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:55,260 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:52:55,261 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:55,267 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 20:52:55,267 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:55,270 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 20:52:55,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618567706] [2019-12-07 20:52:55,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:52:55,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:52:55,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817585372] [2019-12-07 20:52:55,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:52:55,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:55,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:52:55,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:52:55,272 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2019-12-07 20:52:55,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:55,336 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2019-12-07 20:52:55,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:52:55,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 20:52:55,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:55,338 INFO L225 Difference]: With dead ends: 131 [2019-12-07 20:52:55,338 INFO L226 Difference]: Without dead ends: 79 [2019-12-07 20:52:55,339 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 20:52:55,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-12-07 20:52:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2019-12-07 20:52:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 20:52:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2019-12-07 20:52:55,350 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2019-12-07 20:52:55,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:55,350 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2019-12-07 20:52:55,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:52:55,351 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2019-12-07 20:52:55,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 20:52:55,352 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:55,352 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] [2019-12-07 20:52:55,552 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:52:55,553 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:55,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:55,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2019-12-07 20:52:55,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:55,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030647862] [2019-12-07 20:52:55,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 20:52:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:55,777 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:52:55,779 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:55,796 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 20:52:55,796 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:55,821 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 20:52:55,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030647862] [2019-12-07 20:52:55,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:52:55,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:52:55,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420487487] [2019-12-07 20:52:55,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:52:55,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:55,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:52:55,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:52:55,823 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 8 states. [2019-12-07 20:52:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:56,030 INFO L93 Difference]: Finished difference Result 540 states and 790 transitions. [2019-12-07 20:52:56,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 20:52:56,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 20:52:56,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:56,033 INFO L225 Difference]: With dead ends: 540 [2019-12-07 20:52:56,033 INFO L226 Difference]: Without dead ends: 469 [2019-12-07 20:52:56,034 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 20:52:56,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-12-07 20:52:56,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 198. [2019-12-07 20:52:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-12-07 20:52:56,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 275 transitions. [2019-12-07 20:52:56,058 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 275 transitions. Word has length 25 [2019-12-07 20:52:56,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:56,059 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 275 transitions. [2019-12-07 20:52:56,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:52:56,059 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 275 transitions. [2019-12-07 20:52:56,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 20:52:56,061 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:56,061 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:52:56,261 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:52:56,262 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:56,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1174218714, now seen corresponding path program 1 times [2019-12-07 20:52:56,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:56,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914820963] [2019-12-07 20:52:56,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 20:52:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:56,371 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 20:52:56,373 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:52:56,384 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:52:56,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914820963] [2019-12-07 20:52:56,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [177856525] [2019-12-07 20:52:56,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:52:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:56,494 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:52:56,497 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 20:52:56,524 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 20:52:56,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 20:52:56,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 20:52:56,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963912228] [2019-12-07 20:52:56,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:52:56,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:56,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:52:56,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 20:52:56,528 INFO L87 Difference]: Start difference. First operand 198 states and 275 transitions. Second operand 5 states. [2019-12-07 20:52:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:56,659 INFO L93 Difference]: Finished difference Result 456 states and 644 transitions. [2019-12-07 20:52:56,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 20:52:56,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-12-07 20:52:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:56,661 INFO L225 Difference]: With dead ends: 456 [2019-12-07 20:52:56,661 INFO L226 Difference]: Without dead ends: 454 [2019-12-07 20:52:56,662 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 20:52:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-07 20:52:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 198. [2019-12-07 20:52:56,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-12-07 20:52:56,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 273 transitions. [2019-12-07 20:52:56,677 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 273 transitions. Word has length 41 [2019-12-07 20:52:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:56,678 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 273 transitions. [2019-12-07 20:52:56,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:52:56,678 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 273 transitions. [2019-12-07 20:52:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 20:52:56,679 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:56,679 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:52:57,080 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:52:57,082 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:57,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:57,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1538071243, now seen corresponding path program 1 times [2019-12-07 20:52:57,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:57,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072139770] [2019-12-07 20:52:57,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 [2019-12-07 20:52:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:57,241 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:52:57,243 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:52:57,255 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:52:57,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072139770] [2019-12-07 20:52:57,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:52:57,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:52:57,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526338279] [2019-12-07 20:52:57,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:52:57,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:57,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:52:57,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:52:57,259 INFO L87 Difference]: Start difference. First operand 198 states and 273 transitions. Second operand 5 states. [2019-12-07 20:52:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:57,309 INFO L93 Difference]: Finished difference Result 610 states and 837 transitions. [2019-12-07 20:52:57,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:52:57,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-12-07 20:52:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:57,312 INFO L225 Difference]: With dead ends: 610 [2019-12-07 20:52:57,312 INFO L226 Difference]: Without dead ends: 418 [2019-12-07 20:52:57,313 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:52:57,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2019-12-07 20:52:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 207. [2019-12-07 20:52:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-12-07 20:52:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 282 transitions. [2019-12-07 20:52:57,327 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 282 transitions. Word has length 47 [2019-12-07 20:52:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:57,328 INFO L462 AbstractCegarLoop]: Abstraction has 207 states and 282 transitions. [2019-12-07 20:52:57,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:52:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 282 transitions. [2019-12-07 20:52:57,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 20:52:57,329 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:57,329 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:52:57,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 20:52:57,532 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:57,532 INFO L82 PathProgramCache]: Analyzing trace with hash -2047544333, now seen corresponding path program 1 times [2019-12-07 20:52:57,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:57,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859950295] [2019-12-07 20:52:57,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 [2019-12-07 20:52:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:57,656 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:52:57,658 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:52:57,666 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:52:57,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859950295] [2019-12-07 20:52:57,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:52:57,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 20:52:57,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498810222] [2019-12-07 20:52:57,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:52:57,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:57,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:52:57,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:52:57,677 INFO L87 Difference]: Start difference. First operand 207 states and 282 transitions. Second operand 6 states. [2019-12-07 20:52:57,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:57,714 INFO L93 Difference]: Finished difference Result 542 states and 741 transitions. [2019-12-07 20:52:57,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:52:57,715 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-12-07 20:52:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:57,716 INFO L225 Difference]: With dead ends: 542 [2019-12-07 20:52:57,716 INFO L226 Difference]: Without dead ends: 341 [2019-12-07 20:52:57,717 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:52:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-12-07 20:52:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 180. [2019-12-07 20:52:57,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-12-07 20:52:57,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 242 transitions. [2019-12-07 20:52:57,731 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 242 transitions. Word has length 47 [2019-12-07 20:52:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:57,731 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 242 transitions. [2019-12-07 20:52:57,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:52:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 242 transitions. [2019-12-07 20:52:57,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 20:52:57,732 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:57,732 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:52:57,932 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 20:52:57,933 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:57,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:57,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1853071629, now seen corresponding path program 1 times [2019-12-07 20:52:57,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:57,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068827813] [2019-12-07 20:52:57,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/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 [2019-12-07 20:52:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:58,083 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:52:58,084 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:52:58,101 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:52:58,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068827813] [2019-12-07 20:52:58,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [533056323] [2019-12-07 20:52:58,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:52:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:58,215 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:52:58,217 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:52:58,221 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:52:58,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871703429] [2019-12-07 20:52:58,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:52:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:52:58,426 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:52:58,428 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:52:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:52:58,437 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:52:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:52:58,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 20:52:58,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 20:52:58,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119873647] [2019-12-07 20:52:58,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 20:52:58,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:52:58,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 20:52:58,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 20:52:58,445 INFO L87 Difference]: Start difference. First operand 180 states and 242 transitions. Second operand 10 states. [2019-12-07 20:52:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:52:59,013 INFO L93 Difference]: Finished difference Result 1068 states and 1489 transitions. [2019-12-07 20:52:59,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 20:52:59,013 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2019-12-07 20:52:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:52:59,017 INFO L225 Difference]: With dead ends: 1068 [2019-12-07 20:52:59,017 INFO L226 Difference]: Without dead ends: 935 [2019-12-07 20:52:59,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 20:52:59,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2019-12-07 20:52:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 300. [2019-12-07 20:52:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-07 20:52:59,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 410 transitions. [2019-12-07 20:52:59,041 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 410 transitions. Word has length 48 [2019-12-07 20:52:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:52:59,041 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 410 transitions. [2019-12-07 20:52:59,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 20:52:59,041 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 410 transitions. [2019-12-07 20:52:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 20:52:59,042 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:52:59,042 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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 20:52:59,643 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2019-12-07 20:52:59,643 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:52:59,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:52:59,644 INFO L82 PathProgramCache]: Analyzing trace with hash 82160865, now seen corresponding path program 2 times [2019-12-07 20:52:59,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:52:59,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412126856] [2019-12-07 20:52:59,644 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 20:53:00,360 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 20:53:00,361 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 20:53:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:53:01,359 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:53:01,359 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:53:01,559 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 20:53:01,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:53:01 BoogieIcfgContainer [2019-12-07 20:53:01,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:53:01,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:53:01,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:53:01,682 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:53:01,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:52:53" (3/4) ... [2019-12-07 20:53:01,684 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:53:01,759 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1eab41e-963d-4f6b-bd67-5d162c0136e3/bin/utaipan/witness.graphml [2019-12-07 20:53:01,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:53:01,761 INFO L168 Benchmark]: Toolchain (without parser) took 9018.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.6 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -216.4 MB). Peak memory consumption was 99.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:53:01,761 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:53:01,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:53:01,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.91 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 20:53:01,761 INFO L168 Benchmark]: Boogie Preprocessor took 28.94 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 20:53:01,761 INFO L168 Benchmark]: RCFGBuilder took 524.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:53:01,762 INFO L168 Benchmark]: TraceAbstraction took 7969.69 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 177.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -162.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:53:01,762 INFO L168 Benchmark]: Witness Printer took 77.48 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:53:01,763 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.91 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. * Boogie Preprocessor took 28.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 524.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7969.69 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 177.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -162.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Witness Printer took 77.48 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 752]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L757] int cleanupTimeShifts = 4; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L830] int retValue_acc ; [L831] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] int retValue_acc ; [L467] retValue_acc = 1 [L468] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] tmp = valid_product() [L839] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] int splverifierCounter ; [L481] int tmp ; [L482] int tmp___0 ; [L483] int tmp___1 ; [L484] int tmp___2 ; [L487] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L491] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] tmp = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] COND TRUE waterLevel < 2 [L872] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND TRUE \read(tmp___2) [L743] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; [L933] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) [L625] int tmp ; [L650] int retValue_acc ; [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] retValue_acc = isMethaneLevelCritical() [L656] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] tmp = isMethaneAlarm() [L631] COND FALSE !(\read(tmp)) [L619] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L489] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L491] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND TRUE \read(tmp___2) [L743] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L489] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L491] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND TRUE \read(tmp___2) [L743] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Result: UNSAFE, OverallTime: 7.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 782 SDtfs, 1910 SDslu, 1947 SDs, 0 SdLazy, 335 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 861 GetRequests, 794 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=300occurred 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, 1573 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 822 ConstructedInterpolants, 0 QuantifiedInterpolants, 80192 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2419 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 136/200 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...