./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.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_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 5a2d3ce20e3d26ebf70024607ecab77b852f9995 ...................................................................................................................................... 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_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 5a2d3ce20e3d26ebf70024607ecab77b852f9995 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:16:33,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:16:33,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:16:33,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:16:33,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:16:33,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:16:33,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:16:33,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:16:33,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:16:33,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:16:33,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:16:33,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:16:33,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:16:33,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:16:33,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:16:33,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:16:33,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:16:33,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:16:33,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:16:33,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:16:33,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:16:33,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:16:33,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:16:33,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:16:33,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:16:33,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:16:33,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:16:33,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:16:33,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:16:33,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:16:33,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:16:33,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:16:33,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:16:33,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:16:33,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:16:33,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:16:33,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:16:33,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:16:33,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:16:33,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:16:33,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:16:33,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:16:33,147 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:16:33,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:16:33,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:16:33,148 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:16:33,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:16:33,148 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:16:33,148 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:16:33,148 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:16:33,148 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:16:33,148 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:16:33,148 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:16:33,149 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:16:33,149 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:16:33,149 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:16:33,149 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:16:33,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:16:33,150 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:16:33,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:16:33,151 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:16:33,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:16:33,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:16:33,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:16:33,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:16:33,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:16:33,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:16:33,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:16:33,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:16:33,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:16:33,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:16:33,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:16:33,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:16:33,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:16:33,152 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_c1933fa1-2b95-424e-955e-a3859b359d4f/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 -> 5a2d3ce20e3d26ebf70024607ecab77b852f9995 [2019-12-07 19:16:33,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:16:33,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:16:33,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:16:33,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:16:33,262 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:16:33,262 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2019-12-07 19:16:33,303 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/c0aa8ab39/55fe8da7dee24179838cacc6cf006367/FLAGf69bca23c [2019-12-07 19:16:33,747 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:16:33,747 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2019-12-07 19:16:33,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/c0aa8ab39/55fe8da7dee24179838cacc6cf006367/FLAGf69bca23c [2019-12-07 19:16:33,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/c0aa8ab39/55fe8da7dee24179838cacc6cf006367 [2019-12-07 19:16:33,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:16:33,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:16:33,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:16:33,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:16:33,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:16:33,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:16:33" (1/1) ... [2019-12-07 19:16:33,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec2c2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:33, skipping insertion in model container [2019-12-07 19:16:33,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:16:33" (1/1) ... [2019-12-07 19:16:33,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:16:33,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:16:34,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:16:34,036 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 19:16:34,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4812a52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:34, skipping insertion in model container [2019-12-07 19:16:34,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:16:34,037 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 19:16:34,039 INFO L168 Benchmark]: Toolchain (without parser) took 272.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:34,039 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:16:34,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:34,041 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 68]: 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 19:16:35,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:16:35,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:16:35,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:16:35,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:16:35,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:16:35,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:16:35,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:16:35,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:16:35,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:16:35,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:16:35,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:16:35,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:16:35,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:16:35,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:16:35,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:16:35,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:16:35,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:16:35,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:16:35,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:16:35,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:16:35,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:16:35,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:16:35,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:16:35,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:16:35,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:16:35,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:16:35,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:16:35,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:16:35,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:16:35,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:16:35,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:16:35,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:16:35,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:16:35,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:16:35,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:16:35,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:16:35,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:16:35,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:16:35,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:16:35,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:16:35,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:16:35,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:16:35,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:16:35,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:16:35,225 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:16:35,225 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:16:35,225 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:16:35,225 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:16:35,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:16:35,226 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:16:35,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:16:35,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:16:35,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:16:35,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:16:35,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:16:35,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:16:35,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:16:35,227 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:16:35,227 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:16:35,228 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:16:35,228 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:16:35,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:16:35,228 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:16:35,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:16:35,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:16:35,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:16:35,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:16:35,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:16:35,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:16:35,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:16:35,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:16:35,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:16:35,229 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:16:35,229 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:16:35,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:16:35,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:16:35,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:16:35,230 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_c1933fa1-2b95-424e-955e-a3859b359d4f/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 -> 5a2d3ce20e3d26ebf70024607ecab77b852f9995 [2019-12-07 19:16:35,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:16:35,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:16:35,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:16:35,402 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:16:35,402 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:16:35,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2019-12-07 19:16:35,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/9ff033db6/b87c15a048c84f27873d6318a6d6060b/FLAG7ff338650 [2019-12-07 19:16:35,903 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:16:35,904 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2019-12-07 19:16:35,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/9ff033db6/b87c15a048c84f27873d6318a6d6060b/FLAG7ff338650 [2019-12-07 19:16:35,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/data/9ff033db6/b87c15a048c84f27873d6318a6d6060b [2019-12-07 19:16:35,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:16:35,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:16:35,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:16:35,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:16:35,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:16:35,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:16:35" (1/1) ... [2019-12-07 19:16:35,929 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 07:16:35, skipping insertion in model container [2019-12-07 19:16:35,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:16:35" (1/1) ... [2019-12-07 19:16:35,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:16:35,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:16:36,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:16:36,185 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 19:16:36,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:16:36,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:16:36,231 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:16:36,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:16:36,288 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:16:36,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36 WrapperNode [2019-12-07 19:16:36,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:16:36,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:16:36,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:16:36,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:16:36,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:16:36,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:16:36,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:16:36,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:16:36,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... [2019-12-07 19:16:36,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:16:36,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:16:36,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:16:36,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:16:36,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:16:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 19:16:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:16:36,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:16:36,859 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:16:36,859 INFO L287 CfgBuilder]: Removed 114 assume(true) statements. [2019-12-07 19:16:36,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:16:36 BoogieIcfgContainer [2019-12-07 19:16:36,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:16:36,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:16:36,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:16:36,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:16:36,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:16:35" (1/3) ... [2019-12-07 19:16:36,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fe33c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:16:36, skipping insertion in model container [2019-12-07 19:16:36,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:16:36" (2/3) ... [2019-12-07 19:16:36,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fe33c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:16:36, skipping insertion in model container [2019-12-07 19:16:36,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:16:36" (3/3) ... [2019-12-07 19:16:36,865 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2019-12-07 19:16:36,872 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:16:36,877 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 19:16:36,885 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 19:16:36,902 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:16:36,903 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:16:36,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:16:36,903 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:16:36,903 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:16:36,903 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:16:36,903 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:16:36,903 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:16:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-12-07 19:16:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 19:16:36,919 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:36,920 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:16:36,920 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:36,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:36,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1847621448, now seen corresponding path program 1 times [2019-12-07 19:16:36,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:36,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060621889] [2019-12-07 19:16:36,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:37,070 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:16:37,073 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:37,083 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 19:16:37,084 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:37,087 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 19:16:37,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060621889] [2019-12-07 19:16:37,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:37,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:16:37,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835038684] [2019-12-07 19:16:37,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:16:37,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:37,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:16:37,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:16:37,102 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-12-07 19:16:37,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:37,121 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2019-12-07 19:16:37,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:16:37,123 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 19:16:37,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:37,130 INFO L225 Difference]: With dead ends: 168 [2019-12-07 19:16:37,131 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 19:16:37,133 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 19:16:37,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 19:16:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-12-07 19:16:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-07 19:16:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-12-07 19:16:37,161 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2019-12-07 19:16:37,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:37,162 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-12-07 19:16:37,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:16:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-12-07 19:16:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 19:16:37,163 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:37,163 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 19:16:37,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:16:37,365 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:37,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash 800864551, now seen corresponding path program 1 times [2019-12-07 19:16:37,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:37,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427887739] [2019-12-07 19:16:37,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:37,577 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:16:37,578 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:37,591 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 19:16:37,592 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:37,599 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 19:16:37,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427887739] [2019-12-07 19:16:37,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:37,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 19:16:37,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669494934] [2019-12-07 19:16:37,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:16:37,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:37,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:16:37,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:16:37,602 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 4 states. [2019-12-07 19:16:37,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:37,611 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-12-07 19:16:37,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:16:37,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 19:16:37,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:37,613 INFO L225 Difference]: With dead ends: 83 [2019-12-07 19:16:37,613 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 19:16:37,614 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 19:16:37,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 19:16:37,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 19:16:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 19:16:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-12-07 19:16:37,618 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2019-12-07 19:16:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:37,618 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-12-07 19:16:37,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:16:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-12-07 19:16:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 19:16:37,619 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:37,619 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 19:16:37,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:16:37,820 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:37,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:37,820 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2019-12-07 19:16:37,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:37,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506157153] [2019-12-07 19:16:37,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:37,950 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:16:37,951 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:37,958 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 19:16:37,959 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:37,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:16:37,965 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506157153] [2019-12-07 19:16:37,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:37,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:16:37,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781525938] [2019-12-07 19:16:37,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:16:37,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:37,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:16:37,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:16:37,967 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 4 states. [2019-12-07 19:16:37,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:37,973 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2019-12-07 19:16:37,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:16:37,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 19:16:37,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:37,974 INFO L225 Difference]: With dead ends: 68 [2019-12-07 19:16:37,974 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 19:16:37,974 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 19:16:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 19:16:37,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 19:16:37,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 19:16:37,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2019-12-07 19:16:37,979 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2019-12-07 19:16:37,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:37,979 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2019-12-07 19:16:37,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:16:37,979 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2019-12-07 19:16:37,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 19:16:37,980 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:37,980 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 19:16:38,180 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 19:16:38,181 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:38,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:38,181 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2019-12-07 19:16:38,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:38,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362203763] [2019-12-07 19:16:38,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:38,311 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:16:38,312 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:38,317 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 19:16:38,317 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:38,319 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 19:16:38,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362203763] [2019-12-07 19:16:38,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:38,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 19:16:38,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765980404] [2019-12-07 19:16:38,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:16:38,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:38,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:16:38,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:16:38,321 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2019-12-07 19:16:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:38,372 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-12-07 19:16:38,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:16:38,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 19:16:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:38,373 INFO L225 Difference]: With dead ends: 89 [2019-12-07 19:16:38,373 INFO L226 Difference]: Without dead ends: 58 [2019-12-07 19:16:38,374 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 19:16:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-07 19:16:38,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-12-07 19:16:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 19:16:38,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-12-07 19:16:38,380 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2019-12-07 19:16:38,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:38,381 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-12-07 19:16:38,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:16:38,381 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-12-07 19:16:38,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 19:16:38,382 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:38,382 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:16:38,582 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 19:16:38,583 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:38,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:38,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2019-12-07 19:16:38,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:38,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58573856] [2019-12-07 19:16:38,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:38,841 INFO L264 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:16:38,842 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:38,854 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 19:16:38,854 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:38,862 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 19:16:38,862 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58573856] [2019-12-07 19:16:38,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:38,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 19:16:38,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738366842] [2019-12-07 19:16:38,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:16:38,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:38,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:16:38,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:16:38,864 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2019-12-07 19:16:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:38,946 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2019-12-07 19:16:38,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 19:16:38,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 19:16:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:38,948 INFO L225 Difference]: With dead ends: 266 [2019-12-07 19:16:38,948 INFO L226 Difference]: Without dead ends: 216 [2019-12-07 19:16:38,949 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 19:16:38,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-12-07 19:16:38,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 100. [2019-12-07 19:16:38,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-12-07 19:16:38,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2019-12-07 19:16:38,968 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 29 [2019-12-07 19:16:38,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:38,968 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2019-12-07 19:16:38,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:16:38,969 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2019-12-07 19:16:38,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 19:16:38,970 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:38,970 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:16:39,170 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 19:16:39,171 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:39,171 INFO L82 PathProgramCache]: Analyzing trace with hash 634718134, now seen corresponding path program 1 times [2019-12-07 19:16:39,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:39,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96097787] [2019-12-07 19:16:39,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:39,284 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:16:39,286 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:39,302 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 19:16:39,302 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:39,306 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 19:16:39,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96097787] [2019-12-07 19:16:39,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:39,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 19:16:39,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210124471] [2019-12-07 19:16:39,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:16:39,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:39,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:16:39,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:16:39,307 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 5 states. [2019-12-07 19:16:39,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:39,423 INFO L93 Difference]: Finished difference Result 280 states and 394 transitions. [2019-12-07 19:16:39,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 19:16:39,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 19:16:39,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:39,426 INFO L225 Difference]: With dead ends: 280 [2019-12-07 19:16:39,426 INFO L226 Difference]: Without dead ends: 278 [2019-12-07 19:16:39,427 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 19:16:39,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-07 19:16:39,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2019-12-07 19:16:39,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-12-07 19:16:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2019-12-07 19:16:39,441 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 30 [2019-12-07 19:16:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:39,442 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2019-12-07 19:16:39,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:16:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2019-12-07 19:16:39,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 19:16:39,443 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:39,443 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:16:39,644 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 19:16:39,644 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:39,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:39,645 INFO L82 PathProgramCache]: Analyzing trace with hash 719357973, now seen corresponding path program 1 times [2019-12-07 19:16:39,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:39,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897841282] [2019-12-07 19:16:39,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 19:16:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:39,794 INFO L264 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:16:39,796 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:39,808 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 19:16:39,808 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:39,810 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 19:16:39,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897841282] [2019-12-07 19:16:39,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:39,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 19:16:39,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914820963] [2019-12-07 19:16:39,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:16:39,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:39,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:16:39,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:16:39,811 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand 5 states. [2019-12-07 19:16:39,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:39,847 INFO L93 Difference]: Finished difference Result 270 states and 372 transitions. [2019-12-07 19:16:39,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:16:39,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-07 19:16:39,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:39,848 INFO L225 Difference]: With dead ends: 270 [2019-12-07 19:16:39,848 INFO L226 Difference]: Without dead ends: 176 [2019-12-07 19:16:39,849 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 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 19:16:39,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-12-07 19:16:39,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2019-12-07 19:16:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-12-07 19:16:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2019-12-07 19:16:39,857 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 33 [2019-12-07 19:16:39,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:39,857 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2019-12-07 19:16:39,857 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:16:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2019-12-07 19:16:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 19:16:39,858 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:39,858 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:16:40,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 19:16:40,060 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:40,061 INFO L82 PathProgramCache]: Analyzing trace with hash 132551959, now seen corresponding path program 1 times [2019-12-07 19:16:40,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:40,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118515851] [2019-12-07 19:16:40,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:40,194 INFO L264 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:16:40,196 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:40,203 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 19:16:40,203 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:40,212 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 19:16:40,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118515851] [2019-12-07 19:16:40,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:40,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 19:16:40,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864690751] [2019-12-07 19:16:40,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:16:40,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:40,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:16:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:16:40,213 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 6 states. [2019-12-07 19:16:40,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:40,245 INFO L93 Difference]: Finished difference Result 288 states and 390 transitions. [2019-12-07 19:16:40,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 19:16:40,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-07 19:16:40,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:40,246 INFO L225 Difference]: With dead ends: 288 [2019-12-07 19:16:40,246 INFO L226 Difference]: Without dead ends: 188 [2019-12-07 19:16:40,247 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 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 19:16:40,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-12-07 19:16:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 110. [2019-12-07 19:16:40,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-07 19:16:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2019-12-07 19:16:40,254 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 33 [2019-12-07 19:16:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:40,255 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2019-12-07 19:16:40,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 19:16:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2019-12-07 19:16:40,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 19:16:40,256 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:40,256 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:16:40,456 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 19:16:40,457 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:40,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:40,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1147311719, now seen corresponding path program 1 times [2019-12-07 19:16:40,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:40,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728574871] [2019-12-07 19:16:40,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:40,610 INFO L264 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:16:40,611 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:40,616 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 19:16:40,616 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:40,622 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 19:16:40,623 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728574871] [2019-12-07 19:16:40,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:40,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:16:40,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171772331] [2019-12-07 19:16:40,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:16:40,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:40,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:16:40,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:16:40,624 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand 4 states. [2019-12-07 19:16:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:40,660 INFO L93 Difference]: Finished difference Result 346 states and 468 transitions. [2019-12-07 19:16:40,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:16:40,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-12-07 19:16:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:40,662 INFO L225 Difference]: With dead ends: 346 [2019-12-07 19:16:40,662 INFO L226 Difference]: Without dead ends: 242 [2019-12-07 19:16:40,663 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 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 19:16:40,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-12-07 19:16:40,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 192. [2019-12-07 19:16:40,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-12-07 19:16:40,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 257 transitions. [2019-12-07 19:16:40,675 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 257 transitions. Word has length 33 [2019-12-07 19:16:40,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:40,675 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 257 transitions. [2019-12-07 19:16:40,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:16:40,675 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 257 transitions. [2019-12-07 19:16:40,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 19:16:40,676 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:40,676 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:16:40,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 19:16:40,876 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:40,877 INFO L82 PathProgramCache]: Analyzing trace with hash 9984219, now seen corresponding path program 1 times [2019-12-07 19:16:40,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:40,877 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135286176] [2019-12-07 19:16:40,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/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 19:16:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:16:40,972 INFO L264 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 19:16:40,973 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:16:40,990 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 19:16:40,990 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:16:41,023 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 19:16:41,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135286176] [2019-12-07 19:16:41,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:16:41,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 19:16:41,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019540871] [2019-12-07 19:16:41,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 19:16:41,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:16:41,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 19:16:41,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 19:16:41,025 INFO L87 Difference]: Start difference. First operand 192 states and 257 transitions. Second operand 10 states. [2019-12-07 19:16:41,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:16:41,362 INFO L93 Difference]: Finished difference Result 788 states and 1036 transitions. [2019-12-07 19:16:41,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 19:16:41,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-12-07 19:16:41,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:16:41,365 INFO L225 Difference]: With dead ends: 788 [2019-12-07 19:16:41,366 INFO L226 Difference]: Without dead ends: 602 [2019-12-07 19:16:41,366 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-12-07 19:16:41,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-07 19:16:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 192. [2019-12-07 19:16:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-12-07 19:16:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2019-12-07 19:16:41,382 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 34 [2019-12-07 19:16:41,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:16:41,383 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2019-12-07 19:16:41,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 19:16:41,383 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2019-12-07 19:16:41,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 19:16:41,383 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:16:41,383 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2019-12-07 19:16:41,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 19:16:41,584 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:16:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:16:41,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1795003067, now seen corresponding path program 1 times [2019-12-07 19:16:41,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:16:41,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119873647] [2019-12-07 19:16:41,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 19:16:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:16:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:16:43,353 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 19:16:43,353 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:16:43,554 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 19:16:43,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:16:43 BoogieIcfgContainer [2019-12-07 19:16:43,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:16:43,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:16:43,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:16:43,676 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:16:43,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:16:36" (3/4) ... [2019-12-07 19:16:43,678 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 19:16:43,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c1933fa1-2b95-424e-955e-a3859b359d4f/bin/utaipan/witness.graphml [2019-12-07 19:16:43,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:16:43,748 INFO L168 Benchmark]: Toolchain (without parser) took 7823.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 951.0 MB in the beginning and 900.0 MB in the end (delta: 51.0 MB). Peak memory consumption was 269.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:43,748 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 19:16:43,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:43,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:16:43,749 INFO L168 Benchmark]: Boogie Preprocessor took 28.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:43,749 INFO L168 Benchmark]: RCFGBuilder took 501.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:43,749 INFO L168 Benchmark]: TraceAbstraction took 6815.20 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 99.1 MB). Free memory was 1.0 GB in the beginning and 916.3 MB in the end (delta: 97.8 MB). Peak memory consumption was 196.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:43,749 INFO L168 Benchmark]: Witness Printer took 70.60 ms. Allocated memory is still 1.2 GB. Free memory was 916.3 MB in the beginning and 900.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2019-12-07 19:16:43,750 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 363.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 501.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6815.20 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 99.1 MB). Free memory was 1.0 GB in the beginning and 916.3 MB in the end (delta: 97.8 MB). Peak memory consumption was 196.9 MB. Max. memory is 11.5 GB. * Witness Printer took 70.60 ms. Allocated memory is still 1.2 GB. Free memory was 916.3 MB in the beginning and 900.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 887]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L480] int waterLevel = 1; [L481] int methaneLevelCritical = 0; [L578] int pumpRunning = 0; [L579] int systemActive = 1; [L749] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; [L826] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L874] int retValue_acc ; [L877] retValue_acc = 1 [L878] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L420] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L428] tmp = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L498] COND TRUE waterLevel < 2 [L499] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE \read(systemActive) [L615] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] COND TRUE ! pumpRunning [L730] int retValue_acc ; [L731] int tmp ; [L732] int tmp___0 ; [L560] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(waterLevel < 2) [L567] retValue_acc = 0 [L568] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp = isHighWaterSensorDry() [L738] COND FALSE !(\read(tmp)) [L741] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L743] retValue_acc = tmp___0 [L744] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] tmp = isHighWaterLevel() [L622] COND TRUE \read(tmp) [L649] int tmp ; [L674] int retValue_acc ; [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] retValue_acc = isMethaneLevelCritical() [L680] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] tmp = isMethaneAlarm() [L655] COND FALSE !(\read(tmp)) [L643] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L893] int tmp ; [L894] int tmp___0 ; [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] tmp = isMethaneLevelCritical() [L900] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L420] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L422] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND FALSE !(\read(methaneLevelCritical)) [L513] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L586] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L486] COND TRUE waterLevel > 0 [L487] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L593] COND TRUE \read(systemActive) [L615] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L618] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] int tmp ; [L894] int tmp___0 ; [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] tmp = isMethaneLevelCritical() [L900] COND TRUE \read(tmp) [L685] int retValue_acc ; [L688] retValue_acc = pumpRunning [L689] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L902] tmp___0 = isPumpRunning() [L904] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L887] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.6s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 801 SDtfs, 1187 SDslu, 1807 SDs, 0 SdLazy, 224 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 549 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred 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, 10 MinimizatonAttempts, 904 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 28659 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1916 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...