./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.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_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/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 6b50f176f9cc083683ce70010cc4357ff865e696 ....................................................................................................................................... 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_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/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 6b50f176f9cc083683ce70010cc4357ff865e696 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:27:08,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:27:08,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:27:09,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:27:09,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:27:09,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:27:09,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:27:09,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:27:09,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:27:09,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:27:09,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:27:09,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:27:09,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:27:09,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:27:09,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:27:09,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:27:09,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:27:09,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:27:09,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:27:09,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:27:09,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:27:09,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:27:09,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:27:09,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:27:09,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:27:09,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:27:09,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:27:09,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:27:09,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:27:09,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:27:09,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:27:09,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:27:09,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:27:09,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:27:09,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:27:09,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:27:09,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:27:09,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:27:09,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:27:09,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:27:09,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:27:09,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:27:09,036 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:27:09,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:27:09,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:27:09,036 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:27:09,036 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:27:09,037 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:27:09,037 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:27:09,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:27:09,038 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:27:09,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:27:09,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:27:09,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:27:09,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:27:09,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:27:09,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:27:09,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:27:09,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:27:09,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:27:09,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:27:09,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:27:09,040 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:27:09,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:27:09,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:27:09,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:27:09,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:27:09,041 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_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/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 -> 6b50f176f9cc083683ce70010cc4357ff865e696 [2019-12-07 14:27:09,140 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:27:09,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:27:09,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:27:09,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:27:09,151 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:27:09,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-12-07 14:27:09,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/a6134fc19/2365b9ef1fd94e6382897582086e9520/FLAG5f9c0ec39 [2019-12-07 14:27:09,580 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:27:09,580 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-12-07 14:27:09,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/a6134fc19/2365b9ef1fd94e6382897582086e9520/FLAG5f9c0ec39 [2019-12-07 14:27:09,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/a6134fc19/2365b9ef1fd94e6382897582086e9520 [2019-12-07 14:27:09,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:27:09,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:27:09,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:27:09,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:27:09,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:27:09,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:27:09" (1/1) ... [2019-12-07 14:27:09,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155c7db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:09, skipping insertion in model container [2019-12-07 14:27:09,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:27:09" (1/1) ... [2019-12-07 14:27:09,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:27:09,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:27:10,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:27:10,227 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 14:27:10,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@166415ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:10, skipping insertion in model container [2019-12-07 14:27:10,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:27:10,228 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 14:27:10,230 INFO L168 Benchmark]: Toolchain (without parser) took 276.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -134.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:27:10,230 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:27:10,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:27:10,232 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 218]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 14:27:11,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:27:11,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:27:11,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:27:11,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:27:11,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:27:11,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:27:11,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:27:11,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:27:11,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:27:11,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:27:11,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:27:11,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:27:11,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:27:11,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:27:11,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:27:11,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:27:11,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:27:11,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:27:11,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:27:11,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:27:11,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:27:11,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:27:11,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:27:11,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:27:11,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:27:11,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:27:11,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:27:11,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:27:11,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:27:11,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:27:11,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:27:11,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:27:11,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:27:11,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:27:11,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:27:11,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:27:11,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:27:11,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:27:11,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:27:11,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:27:11,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:27:11,458 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:27:11,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:27:11,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:27:11,460 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:27:11,460 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:27:11,460 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:27:11,460 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:27:11,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:27:11,460 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:27:11,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:27:11,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:27:11,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:27:11,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:27:11,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:27:11,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:27:11,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:27:11,462 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:27:11,462 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:27:11,463 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:27:11,463 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:27:11,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:27:11,463 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:27:11,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:27:11,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:27:11,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:27:11,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:27:11,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:27:11,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:27:11,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:27:11,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:27:11,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:27:11,464 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:27:11,464 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:27:11,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:27:11,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:27:11,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:27:11,465 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_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/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 -> 6b50f176f9cc083683ce70010cc4357ff865e696 [2019-12-07 14:27:11,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:27:11,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:27:11,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:27:11,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:27:11,647 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:27:11,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-12-07 14:27:11,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/74ff29548/5c6e59d43de04cb383f7d0980748c43e/FLAGcfe5c6d37 [2019-12-07 14:27:12,036 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:27:12,037 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-12-07 14:27:12,046 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/74ff29548/5c6e59d43de04cb383f7d0980748c43e/FLAGcfe5c6d37 [2019-12-07 14:27:12,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/data/74ff29548/5c6e59d43de04cb383f7d0980748c43e [2019-12-07 14:27:12,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:27:12,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:27:12,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:27:12,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:27:12,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:27:12,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,068 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 02:27:12, skipping insertion in model container [2019-12-07 14:27:12,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:27:12,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:27:12,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:27:12,347 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 14:27:12,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:27:12,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:27:12,394 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:27:12,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:27:12,458 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:27:12,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12 WrapperNode [2019-12-07 14:27:12,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:27:12,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:27:12,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:27:12,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:27:12,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:27:12,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:27:12,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:27:12,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:27:12,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... [2019-12-07 14:27:12,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:27:12,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:27:12,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:27:12,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:27:12,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:27:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:27:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 14:27:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:27:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:27:13,061 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:27:13,061 INFO L287 CfgBuilder]: Removed 124 assume(true) statements. [2019-12-07 14:27:13,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:27:13 BoogieIcfgContainer [2019-12-07 14:27:13,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:27:13,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:27:13,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:27:13,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:27:13,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:27:12" (1/3) ... [2019-12-07 14:27:13,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9f7910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:27:13, skipping insertion in model container [2019-12-07 14:27:13,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:27:12" (2/3) ... [2019-12-07 14:27:13,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9f7910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:27:13, skipping insertion in model container [2019-12-07 14:27:13,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:27:13" (3/3) ... [2019-12-07 14:27:13,069 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2019-12-07 14:27:13,078 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:27:13,084 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 14:27:13,094 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 14:27:13,110 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:27:13,110 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:27:13,110 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:27:13,110 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:27:13,110 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:27:13,110 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:27:13,110 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:27:13,111 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:27:13,121 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-12-07 14:27:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 14:27:13,126 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:27:13,126 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:27:13,127 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:27:13,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:27:13,130 INFO L82 PathProgramCache]: Analyzing trace with hash 725412282, now seen corresponding path program 1 times [2019-12-07 14:27:13,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:27:13,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54665641] [2019-12-07 14:27:13,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 14:27:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:27:13,267 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:27:13,271 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:27:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:13,282 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:27:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:13,286 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54665641] [2019-12-07 14:27:13,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:27:13,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:27:13,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787256513] [2019-12-07 14:27:13,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:27:13,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:27:13,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:27:13,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:27:13,306 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 2 states. [2019-12-07 14:27:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:27:13,330 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2019-12-07 14:27:13,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:27:13,331 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 14:27:13,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:27:13,339 INFO L225 Difference]: With dead ends: 184 [2019-12-07 14:27:13,339 INFO L226 Difference]: Without dead ends: 91 [2019-12-07 14:27:13,342 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:27:13,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-12-07 14:27:13,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-12-07 14:27:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 14:27:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2019-12-07 14:27:13,371 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2019-12-07 14:27:13,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:27:13,371 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2019-12-07 14:27:13,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:27:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2019-12-07 14:27:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 14:27:13,372 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:27:13,372 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:27:13,573 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:27:13,574 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:27:13,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:27:13,575 INFO L82 PathProgramCache]: Analyzing trace with hash -185618471, now seen corresponding path program 1 times [2019-12-07 14:27:13,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:27:13,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584504691] [2019-12-07 14:27:13,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 14:27:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:27:13,799 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:27:13,801 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:27:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:13,817 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:27:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:13,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584504691] [2019-12-07 14:27:13,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:27:13,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:27:13,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949843306] [2019-12-07 14:27:13,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:27:13,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:27:13,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:27:13,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:27:13,828 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 4 states. [2019-12-07 14:27:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:27:13,841 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2019-12-07 14:27:13,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:27:13,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 14:27:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:27:13,842 INFO L225 Difference]: With dead ends: 91 [2019-12-07 14:27:13,842 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 14:27:13,843 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:27:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 14:27:13,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 14:27:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 14:27:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-12-07 14:27:13,848 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-12-07 14:27:13,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:27:13,848 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-12-07 14:27:13,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:27:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-12-07 14:27:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 14:27:13,849 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:27:13,849 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:27:14,049 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:27:14,050 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:27:14,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:27:14,051 INFO L82 PathProgramCache]: Analyzing trace with hash -2096218593, now seen corresponding path program 1 times [2019-12-07 14:27:14,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:27:14,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437516106] [2019-12-07 14:27:14,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 14:27:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:27:14,218 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:27:14,219 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:27:14,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:14,227 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:27:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:14,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437516106] [2019-12-07 14:27:14,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:27:14,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 14:27:14,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420487487] [2019-12-07 14:27:14,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:27:14,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:27:14,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:27:14,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:27:14,236 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 4 states. [2019-12-07 14:27:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:27:14,253 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2019-12-07 14:27:14,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:27:14,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 14:27:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:27:14,254 INFO L225 Difference]: With dead ends: 136 [2019-12-07 14:27:14,254 INFO L226 Difference]: Without dead ends: 101 [2019-12-07 14:27:14,255 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:27:14,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-07 14:27:14,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2019-12-07 14:27:14,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-12-07 14:27:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2019-12-07 14:27:14,263 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2019-12-07 14:27:14,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:27:14,263 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2019-12-07 14:27:14,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:27:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2019-12-07 14:27:14,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 14:27:14,264 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:27:14,264 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:27:14,465 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:27:14,466 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:27:14,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:27:14,467 INFO L82 PathProgramCache]: Analyzing trace with hash 68887907, now seen corresponding path program 1 times [2019-12-07 14:27:14,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:27:14,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928024781] [2019-12-07 14:27:14,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 14:27:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:27:14,633 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:27:14,635 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:27:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:14,641 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:27:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:14,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928024781] [2019-12-07 14:27:14,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:27:14,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:27:14,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080284548] [2019-12-07 14:27:14,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:27:14,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:27:14,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:27:14,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:27:14,646 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand 3 states. [2019-12-07 14:27:14,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:27:14,711 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2019-12-07 14:27:14,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:27:14,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 14:27:14,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:27:14,713 INFO L225 Difference]: With dead ends: 141 [2019-12-07 14:27:14,713 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 14:27:14,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:27:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 14:27:14,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2019-12-07 14:27:14,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-07 14:27:14,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2019-12-07 14:27:14,726 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2019-12-07 14:27:14,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:27:14,726 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2019-12-07 14:27:14,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:27:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2019-12-07 14:27:14,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 14:27:14,728 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:27:14,728 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:27:14,929 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:27:14,929 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:27:14,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:27:14,930 INFO L82 PathProgramCache]: Analyzing trace with hash -192728908, now seen corresponding path program 1 times [2019-12-07 14:27:14,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:27:14,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989175225] [2019-12-07 14:27:14,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 14:27:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:27:15,079 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:27:15,081 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:27:15,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:15,097 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:27:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:27:15,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989175225] [2019-12-07 14:27:15,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:27:15,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 14:27:15,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864690751] [2019-12-07 14:27:15,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:27:15,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:27:15,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:27:15,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:27:15,130 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand 8 states. [2019-12-07 14:27:15,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:27:15,444 INFO L93 Difference]: Finished difference Result 888 states and 1304 transitions. [2019-12-07 14:27:15,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 14:27:15,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 14:27:15,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:27:15,451 INFO L225 Difference]: With dead ends: 888 [2019-12-07 14:27:15,451 INFO L226 Difference]: Without dead ends: 811 [2019-12-07 14:27:15,453 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 14:27:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2019-12-07 14:27:15,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 218. [2019-12-07 14:27:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-12-07 14:27:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 306 transitions. [2019-12-07 14:27:15,493 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 306 transitions. Word has length 27 [2019-12-07 14:27:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:27:15,493 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 306 transitions. [2019-12-07 14:27:15,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:27:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 306 transitions. [2019-12-07 14:27:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 14:27:15,495 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:27:15,495 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:27:15,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 14:27:15,697 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:27:15,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:27:15,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1892992650, now seen corresponding path program 1 times [2019-12-07 14:27:15,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:27:15,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401823302] [2019-12-07 14:27:15,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 14:27:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:27:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:27:17,686 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:27:17,686 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:27:17,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 14:27:17,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:27:17 BoogieIcfgContainer [2019-12-07 14:27:17,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:27:17,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:27:17,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:27:17,978 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:27:17,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:27:13" (3/4) ... [2019-12-07 14:27:17,980 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:27:18,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5d30c6c5-d243-4d50-ae80-95b0d0fd799c/bin/utaipan/witness.graphml [2019-12-07 14:27:18,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:27:18,034 INFO L168 Benchmark]: Toolchain (without parser) took 5972.90 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:27:18,034 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:27:18,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:27:18,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:27:18,035 INFO L168 Benchmark]: Boogie Preprocessor took 30.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:27:18,035 INFO L168 Benchmark]: RCFGBuilder took 528.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.9 MB). Peak memory consumption was 74.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:27:18,035 INFO L168 Benchmark]: TraceAbstraction took 4914.20 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -141.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:27:18,036 INFO L168 Benchmark]: Witness Printer took 55.02 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:27:18,037 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 396.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 528.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.9 MB). Peak memory consumption was 74.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4914.20 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -141.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 55.02 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L770] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L611] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L148] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 396 SDtfs, 1014 SDslu, 729 SDs, 0 SdLazy, 132 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 634 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 12713 SizeOfPredicates, 6 NumberOfNonLiveVariables, 924 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...