./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.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_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 fda6d17e7962e4df44156ef592d697d85d9dd989 ...................................................................................................................................... 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_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 fda6d17e7962e4df44156ef592d697d85d9dd989 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:03:37,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:03:37,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:03:37,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:03:37,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:03:37,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:03:37,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:03:37,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:03:37,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:03:37,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:03:37,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:03:37,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:03:37,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:03:37,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:03:37,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:03:37,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:03:37,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:03:37,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:03:37,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:03:37,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:03:37,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:03:37,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:03:37,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:03:37,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:03:37,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:03:37,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:03:37,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:03:37,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:03:37,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:03:37,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:03:37,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:03:37,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:03:37,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:03:37,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:03:37,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:03:37,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:03:37,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:03:37,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:03:37,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:03:37,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:03:37,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:03:37,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:03:37,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:03:37,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:03:37,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:03:37,584 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:03:37,584 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:03:37,585 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:03:37,585 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:03:37,585 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:03:37,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:03:37,585 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:03:37,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:03:37,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:03:37,587 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:03:37,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:03:37,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:03:37,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:03:37,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:03:37,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:03:37,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:03:37,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:03:37,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:03:37,588 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:03:37,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:03:37,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:03:37,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:03:37,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:03:37,588 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_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 -> fda6d17e7962e4df44156ef592d697d85d9dd989 [2019-12-07 15:03:37,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:03:37,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:03:37,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:03:37,697 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:03:37,697 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:03:37,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-12-07 15:03:37,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/3724f7552/490c968ddc7341b38fb95f23386cb4d5/FLAGd1a5cb3e6 [2019-12-07 15:03:38,175 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:03:38,175 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-12-07 15:03:38,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/3724f7552/490c968ddc7341b38fb95f23386cb4d5/FLAGd1a5cb3e6 [2019-12-07 15:03:38,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/3724f7552/490c968ddc7341b38fb95f23386cb4d5 [2019-12-07 15:03:38,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:03:38,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:03:38,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:38,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:03:38,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:03:38,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:38" (1/1) ... [2019-12-07 15:03:38,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25158c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:38, skipping insertion in model container [2019-12-07 15:03:38,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:38" (1/1) ... [2019-12-07 15:03:38,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:03:38,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:03:38,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:38,453 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 15:03:38,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76d6f15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:38, skipping insertion in model container [2019-12-07 15:03:38,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:38,453 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 15:03:38,455 INFO L168 Benchmark]: Toolchain (without parser) took 259.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 936.7 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:38,455 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 954.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:38,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:38,457 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 954.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 484]: 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 15:03:39,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:03:39,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:03:39,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:03:39,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:03:39,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:03:39,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:03:39,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:03:39,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:03:39,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:03:39,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:03:39,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:03:39,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:03:39,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:03:39,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:03:39,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:03:39,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:03:39,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:03:39,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:03:39,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:03:39,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:03:39,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:03:39,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:03:39,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:03:39,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:03:39,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:03:39,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:03:39,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:03:39,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:03:39,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:03:39,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:03:39,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:03:39,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:03:39,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:03:39,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:03:39,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:03:39,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:03:39,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:03:39,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:03:39,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:03:39,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:03:39,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 15:03:39,613 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:03:39,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:03:39,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:03:39,614 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:03:39,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:03:39,614 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:03:39,615 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:03:39,615 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:03:39,615 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:03:39,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:03:39,615 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:03:39,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:03:39,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:03:39,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:03:39,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:03:39,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:03:39,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:03:39,617 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:03:39,617 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:03:39,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:03:39,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:03:39,617 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:03:39,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:03:39,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:03:39,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:03:39,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:03:39,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:03:39,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:03:39,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:03:39,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:03:39,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:03:39,619 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:03:39,619 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:03:39,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:03:39,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:03:39,619 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:03:39,619 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_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 -> fda6d17e7962e4df44156ef592d697d85d9dd989 [2019-12-07 15:03:39,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:03:39,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:03:39,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:03:39,810 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:03:39,811 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:03:39,811 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-12-07 15:03:39,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/b5e579317/6a0903bcd22b48cbb4dcdd09e4001b62/FLAGeef9d5c8e [2019-12-07 15:03:40,206 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:03:40,206 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-12-07 15:03:40,215 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/b5e579317/6a0903bcd22b48cbb4dcdd09e4001b62/FLAGeef9d5c8e [2019-12-07 15:03:40,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/data/b5e579317/6a0903bcd22b48cbb4dcdd09e4001b62 [2019-12-07 15:03:40,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:03:40,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:03:40,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:40,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:03:40,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:03:40,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,231 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 03:03:40, skipping insertion in model container [2019-12-07 15:03:40,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:03:40,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:03:40,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:40,532 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:03:40,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:03:40,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:40,596 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:03:40,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:40,664 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:03:40,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40 WrapperNode [2019-12-07 15:03:40,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:40,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:03:40,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:03:40,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:03:40,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:03:40,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:03:40,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:03:40,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:03:40,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... [2019-12-07 15:03:40,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:03:40,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:03:40,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:03:40,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:03:40,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 15:03:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:03:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 15:03:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:03:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:03:41,334 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:03:41,334 INFO L287 CfgBuilder]: Removed 166 assume(true) statements. [2019-12-07 15:03:41,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:41 BoogieIcfgContainer [2019-12-07 15:03:41,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:03:41,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:03:41,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:03:41,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:03:41,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:03:40" (1/3) ... [2019-12-07 15:03:41,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2bd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:03:41, skipping insertion in model container [2019-12-07 15:03:41,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:40" (2/3) ... [2019-12-07 15:03:41,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2bd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:03:41, skipping insertion in model container [2019-12-07 15:03:41,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:41" (3/3) ... [2019-12-07 15:03:41,341 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2019-12-07 15:03:41,348 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:03:41,353 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 15:03:41,361 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 15:03:41,378 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:03:41,378 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:03:41,378 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:03:41,378 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:03:41,378 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:03:41,379 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:03:41,379 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:03:41,379 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:03:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-12-07 15:03:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 15:03:41,396 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:41,396 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 15:03:41,397 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:41,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:41,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1240734729, now seen corresponding path program 1 times [2019-12-07 15:03:41,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:41,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130543109] [2019-12-07 15:03:41,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 15:03:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:41,545 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:03:41,549 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:41,559 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 15:03:41,559 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:41,563 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 15:03:41,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130543109] [2019-12-07 15:03:41,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:41,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:03:41,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369184127] [2019-12-07 15:03:41,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:03:41,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:41,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:03:41,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:03:41,578 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-12-07 15:03:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:41,600 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-12-07 15:03:41,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:03:41,601 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 15:03:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:41,609 INFO L225 Difference]: With dead ends: 232 [2019-12-07 15:03:41,609 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 15:03:41,612 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 15:03:41,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 15:03:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-12-07 15:03:41,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 15:03:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-12-07 15:03:41,643 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-12-07 15:03:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:41,643 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-12-07 15:03:41,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:03:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-12-07 15:03:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 15:03:41,644 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:41,644 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 15:03:41,845 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:03:41,845 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:41,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:41,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1444708423, now seen corresponding path program 1 times [2019-12-07 15:03:41,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:41,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588727921] [2019-12-07 15:03:41,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 15:03:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:42,008 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:03:42,009 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:42,022 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 15:03:42,023 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:42,031 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 15:03:42,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588727921] [2019-12-07 15:03:42,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:42,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 15:03:42,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269304135] [2019-12-07 15:03:42,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:03:42,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:42,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:03:42,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:03:42,034 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-12-07 15:03:42,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:42,048 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-12-07 15:03:42,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:03:42,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 15:03:42,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:42,050 INFO L225 Difference]: With dead ends: 115 [2019-12-07 15:03:42,050 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 15:03:42,051 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 15:03:42,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 15:03:42,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-12-07 15:03:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 15:03:42,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-12-07 15:03:42,056 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-12-07 15:03:42,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:42,056 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-12-07 15:03:42,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:03:42,057 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-12-07 15:03:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 15:03:42,057 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:42,057 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 15:03:42,258 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:03:42,259 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:42,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:42,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1084287686, now seen corresponding path program 1 times [2019-12-07 15:03:42,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:42,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512590348] [2019-12-07 15:03:42,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 15:03:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:42,400 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:03:42,401 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:42,409 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 15:03:42,409 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:42,416 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 15:03:42,416 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512590348] [2019-12-07 15:03:42,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:42,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 15:03:42,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275581522] [2019-12-07 15:03:42,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:03:42,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:42,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:03:42,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:03:42,418 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 4 states. [2019-12-07 15:03:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:42,436 INFO L93 Difference]: Finished difference Result 160 states and 238 transitions. [2019-12-07 15:03:42,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:03:42,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 15:03:42,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:42,438 INFO L225 Difference]: With dead ends: 160 [2019-12-07 15:03:42,438 INFO L226 Difference]: Without dead ends: 117 [2019-12-07 15:03:42,439 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 15:03:42,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-12-07 15:03:42,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 70. [2019-12-07 15:03:42,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 15:03:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2019-12-07 15:03:42,448 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2019-12-07 15:03:42,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:42,449 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2019-12-07 15:03:42,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:03:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-12-07 15:03:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 15:03:42,450 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:42,450 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] [2019-12-07 15:03:42,650 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:03:42,651 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:42,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:42,651 INFO L82 PathProgramCache]: Analyzing trace with hash -857120593, now seen corresponding path program 1 times [2019-12-07 15:03:42,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:42,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495904917] [2019-12-07 15:03:42,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 15:03:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:42,789 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:03:42,791 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:42,798 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 15:03:42,798 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:42,800 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 15:03:42,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495904917] [2019-12-07 15:03:42,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:42,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 15:03:42,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628661495] [2019-12-07 15:03:42,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:03:42,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:42,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:03:42,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:03:42,802 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand 3 states. [2019-12-07 15:03:42,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:42,862 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2019-12-07 15:03:42,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:03:42,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 15:03:42,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:42,864 INFO L225 Difference]: With dead ends: 157 [2019-12-07 15:03:42,864 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 15:03:42,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 15:03:42,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 15:03:42,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-12-07 15:03:42,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 15:03:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2019-12-07 15:03:42,874 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2019-12-07 15:03:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:42,875 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2019-12-07 15:03:42,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:03:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2019-12-07 15:03:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 15:03:42,876 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:42,876 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 15:03:43,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:03:43,077 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:43,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1307189925, now seen corresponding path program 1 times [2019-12-07 15:03:43,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:43,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569193678] [2019-12-07 15:03:43,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 15:03:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:43,188 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:03:43,189 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:43,202 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 15:03:43,203 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:43,236 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 15:03:43,236 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569193678] [2019-12-07 15:03:43,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:43,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 15:03:43,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259784364] [2019-12-07 15:03:43,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:03:43,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:43,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:03:43,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:03:43,237 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 8 states. [2019-12-07 15:03:43,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:43,562 INFO L93 Difference]: Finished difference Result 986 states and 1451 transitions. [2019-12-07 15:03:43,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 15:03:43,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 15:03:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:43,567 INFO L225 Difference]: With dead ends: 986 [2019-12-07 15:03:43,567 INFO L226 Difference]: Without dead ends: 901 [2019-12-07 15:03:43,568 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 15:03:43,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2019-12-07 15:03:43,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 232. [2019-12-07 15:03:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-12-07 15:03:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2019-12-07 15:03:43,617 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 27 [2019-12-07 15:03:43,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:43,617 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2019-12-07 15:03:43,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:03:43,617 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2019-12-07 15:03:43,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 15:03:43,618 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:43,618 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 15:03:43,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 15:03:43,819 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:43,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:43,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1287513629, now seen corresponding path program 1 times [2019-12-07 15:03:43,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:43,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165081233] [2019-12-07 15:03:43,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/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 15:03:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:45,272 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 15:03:45,272 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:03:45,472 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 15:03:45,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:03:45 BoogieIcfgContainer [2019-12-07 15:03:45,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:03:45,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:03:45,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:03:45,541 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:03:45,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:41" (3/4) ... [2019-12-07 15:03:45,542 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:03:45,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e10ed0f1-0177-4df5-a315-4209f916fcaa/bin/utaipan/witness.graphml [2019-12-07 15:03:45,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:03:45,602 INFO L168 Benchmark]: Toolchain (without parser) took 5376.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:45,603 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:45,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:45,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.63 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 15:03:45,603 INFO L168 Benchmark]: Boogie Preprocessor took 31.76 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 15:03:45,604 INFO L168 Benchmark]: RCFGBuilder took 591.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 968.0 MB in the end (delta: 85.4 MB). Peak memory consumption was 85.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:45,604 INFO L168 Benchmark]: TraceAbstraction took 4203.74 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.8 MB). Free memory was 968.0 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:45,604 INFO L168 Benchmark]: Witness Printer took 60.89 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:45,606 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 438.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.63 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. * Boogie Preprocessor took 31.76 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. * RCFGBuilder took 591.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 968.0 MB in the end (delta: 85.4 MB). Peak memory consumption was 85.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4203.74 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.8 MB). Free memory was 968.0 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 60.89 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L451] __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, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 1242 SDslu, 900 SDs, 0 SdLazy, 169 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred 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, 718 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 12919 SizeOfPredicates, 6 NumberOfNonLiveVariables, 925 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...