./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.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_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 2bf5cdbd1397f8c2609b4d66a963cb35955afadc ...................................................................................................................................... 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_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 2bf5cdbd1397f8c2609b4d66a963cb35955afadc ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:22:11,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:22:11,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:22:11,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:22:11,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:22:11,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:22:11,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:22:11,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:22:11,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:22:11,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:22:11,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:22:11,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:22:11,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:22:11,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:22:11,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:22:11,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:22:11,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:22:11,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:22:11,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:22:11,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:22:11,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:22:11,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:22:11,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:22:11,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:22:11,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:22:11,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:22:11,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:22:11,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:22:11,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:22:11,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:22:11,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:22:11,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:22:11,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:22:11,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:22:11,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:22:11,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:22:11,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:22:11,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:22:11,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:22:11,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:22:11,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:22:11,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 10:22:11,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:22:11,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:22:11,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:22:11,552 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:22:11,553 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:22:11,553 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:22:11,553 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:22:11,553 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:22:11,553 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:22:11,553 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:22:11,553 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:22:11,554 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:22:11,554 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:22:11,554 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:22:11,554 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:22:11,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:22:11,555 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:22:11,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:22:11,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:22:11,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:22:11,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:22:11,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:22:11,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:22:11,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:22:11,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:22:11,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:22:11,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:22:11,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:22:11,557 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:22:11,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:22:11,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:22:11,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:22:11,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:22:11,558 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_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 -> 2bf5cdbd1397f8c2609b4d66a963cb35955afadc [2019-12-07 10:22:11,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:22:11,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:22:11,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:22:11,669 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:22:11,670 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:22:11,670 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-12-07 10:22:11,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/a8d3d51b2/3eca4845190a4d478d51ae7472beaeb6/FLAG1ca03dd92 [2019-12-07 10:22:12,142 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:22:12,142 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-12-07 10:22:12,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/a8d3d51b2/3eca4845190a4d478d51ae7472beaeb6/FLAG1ca03dd92 [2019-12-07 10:22:12,158 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/a8d3d51b2/3eca4845190a4d478d51ae7472beaeb6 [2019-12-07 10:22:12,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:22:12,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:22:12,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:12,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:22:12,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:22:12,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:12" (1/1) ... [2019-12-07 10:22:12,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:12, skipping insertion in model container [2019-12-07 10:22:12,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:12" (1/1) ... [2019-12-07 10:22:12,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:22:12,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:22:12,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:12,413 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 10:22:12,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@190632e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:12, skipping insertion in model container [2019-12-07 10:22:12,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:12,414 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:22:12,416 INFO L168 Benchmark]: Toolchain (without parser) took 254.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:12,416 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:22:12,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:12,418 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 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 68]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 10:22:13,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:22:13,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:22:13,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:22:13,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:22:13,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:22:13,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:22:13,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:22:13,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:22:13,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:22:13,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:22:13,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:22:13,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:22:13,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:22:13,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:22:13,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:22:13,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:22:13,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:22:13,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:22:13,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:22:13,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:22:13,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:22:13,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:22:13,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:22:13,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:22:13,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:22:13,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:22:13,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:22:13,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:22:13,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:22:13,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:22:13,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:22:13,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:22:13,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:22:13,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:22:13,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:22:13,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:22:13,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:22:13,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:22:13,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:22:13,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:22:13,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 10:22:13,590 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:22:13,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:22:13,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:22:13,591 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:22:13,591 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:22:13,591 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:22:13,591 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:22:13,591 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:22:13,591 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:22:13,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:22:13,592 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:22:13,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:22:13,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:22:13,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:22:13,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:22:13,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:22:13,593 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:22:13,593 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:22:13,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:22:13,593 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:22:13,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:22:13,593 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:22:13,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:22:13,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:22:13,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:22:13,594 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:22:13,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:22:13,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:22:13,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:22:13,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:22:13,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:22:13,594 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:22:13,595 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:22:13,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:22:13,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:22:13,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:22:13,595 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_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 -> 2bf5cdbd1397f8c2609b4d66a963cb35955afadc [2019-12-07 10:22:13,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:22:13,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:22:13,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:22:13,777 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:22:13,778 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:22:13,778 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-12-07 10:22:13,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/4bc32e5f5/e657417645dd490c9f12a64765207d89/FLAGc416b03f9 [2019-12-07 10:22:14,190 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:22:14,190 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-12-07 10:22:14,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/4bc32e5f5/e657417645dd490c9f12a64765207d89/FLAGc416b03f9 [2019-12-07 10:22:14,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/data/4bc32e5f5/e657417645dd490c9f12a64765207d89 [2019-12-07 10:22:14,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:22:14,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:22:14,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:14,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:22:14,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:22:14,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14, skipping insertion in model container [2019-12-07 10:22:14,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:22:14,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:22:14,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:14,469 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:22:14,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:22:14,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:14,517 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:22:14,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:14,574 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:22:14,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14 WrapperNode [2019-12-07 10:22:14,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:14,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:22:14,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:22:14,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:22:14,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:22:14,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:22:14,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:22:14,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:22:14,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... [2019-12-07 10:22:14,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:22:14,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:22:14,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:22:14,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:22:14,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 10:22:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:22:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 10:22:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:22:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:22:15,158 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:22:15,158 INFO L287 CfgBuilder]: Removed 96 assume(true) statements. [2019-12-07 10:22:15,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:22:15 BoogieIcfgContainer [2019-12-07 10:22:15,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:22:15,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:22:15,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:22:15,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:22:15,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:22:14" (1/3) ... [2019-12-07 10:22:15,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b0ea8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:22:15, skipping insertion in model container [2019-12-07 10:22:15,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:14" (2/3) ... [2019-12-07 10:22:15,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b0ea8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:22:15, skipping insertion in model container [2019-12-07 10:22:15,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:22:15" (3/3) ... [2019-12-07 10:22:15,167 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2019-12-07 10:22:15,176 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:22:15,182 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 10:22:15,193 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 10:22:15,211 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:22:15,211 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:22:15,211 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:22:15,211 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:22:15,211 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:22:15,212 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:22:15,212 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:22:15,212 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:22:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-12-07 10:22:15,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 10:22:15,228 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:15,228 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:15,229 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:15,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:15,232 INFO L82 PathProgramCache]: Analyzing trace with hash 768274677, now seen corresponding path program 1 times [2019-12-07 10:22:15,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:15,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364801860] [2019-12-07 10:22:15,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 10:22:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:15,373 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 10:22:15,377 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:15,387 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 10:22:15,388 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:15,391 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 10:22:15,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364801860] [2019-12-07 10:22:15,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:15,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 10:22:15,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135677071] [2019-12-07 10:22:15,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 10:22:15,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:15,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 10:22:15,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:22:15,406 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2019-12-07 10:22:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:15,424 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2019-12-07 10:22:15,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 10:22:15,425 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 10:22:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:15,433 INFO L225 Difference]: With dead ends: 150 [2019-12-07 10:22:15,433 INFO L226 Difference]: Without dead ends: 74 [2019-12-07 10:22:15,435 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:22:15,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-12-07 10:22:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-12-07 10:22:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 10:22:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-12-07 10:22:15,464 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2019-12-07 10:22:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:15,465 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 10:22:15,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 10:22:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-12-07 10:22:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 10:22:15,465 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:15,466 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:15,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:22:15,666 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:15,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:15,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1484097871, now seen corresponding path program 1 times [2019-12-07 10:22:15,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:15,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916060234] [2019-12-07 10:22:15,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 10:22:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:15,781 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:22:15,783 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:15,795 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 10:22:15,796 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:15,804 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 10:22:15,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916060234] [2019-12-07 10:22:15,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:15,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:22:15,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249857944] [2019-12-07 10:22:15,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:22:15,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:15,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:22:15,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:15,807 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 4 states. [2019-12-07 10:22:15,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:15,817 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2019-12-07 10:22:15,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:22:15,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 10:22:15,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:15,818 INFO L225 Difference]: With dead ends: 74 [2019-12-07 10:22:15,818 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 10:22:15,819 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 10:22:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 10:22:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 10:22:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2019-12-07 10:22:15,823 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2019-12-07 10:22:15,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:15,823 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2019-12-07 10:22:15,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:22:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2019-12-07 10:22:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 10:22:15,824 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:15,824 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:16,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:22:16,025 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:16,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:16,026 INFO L82 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2019-12-07 10:22:16,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:16,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687119364] [2019-12-07 10:22:16,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 10:22:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:16,199 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:22:16,201 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:16,208 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 10:22:16,208 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:16,215 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 10:22:16,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687119364] [2019-12-07 10:22:16,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:16,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 10:22:16,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512765653] [2019-12-07 10:22:16,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:22:16,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:16,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:22:16,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:16,216 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 4 states. [2019-12-07 10:22:16,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:16,222 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2019-12-07 10:22:16,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:22:16,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 10:22:16,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:16,224 INFO L225 Difference]: With dead ends: 62 [2019-12-07 10:22:16,224 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 10:22:16,224 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:16,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 10:22:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 10:22:16,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 10:22:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-12-07 10:22:16,228 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2019-12-07 10:22:16,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:16,228 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-12-07 10:22:16,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:22:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2019-12-07 10:22:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 10:22:16,229 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:16,229 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:16,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:22:16,430 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:16,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:16,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2019-12-07 10:22:16,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:16,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921318363] [2019-12-07 10:22:16,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 10:22:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:16,554 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:22:16,555 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:16,560 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 10:22:16,560 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:16,562 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 10:22:16,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921318363] [2019-12-07 10:22:16,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:16,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:22:16,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397151116] [2019-12-07 10:22:16,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:22:16,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:16,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:22:16,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:22:16,565 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2019-12-07 10:22:16,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:16,606 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2019-12-07 10:22:16,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:22:16,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 10:22:16,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:16,607 INFO L225 Difference]: With dead ends: 83 [2019-12-07 10:22:16,607 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 10:22:16,607 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:22:16,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 10:22:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2019-12-07 10:22:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 10:22:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2019-12-07 10:22:16,613 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2019-12-07 10:22:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:16,614 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-12-07 10:22:16,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:22:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2019-12-07 10:22:16,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 10:22:16,615 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:16,615 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:16,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 10:22:16,816 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:16,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:16,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2019-12-07 10:22:16,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:16,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825100295] [2019-12-07 10:22:16,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 10:22:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:16,990 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:22:16,991 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:17,004 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 10:22:17,004 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:17,011 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 10:22:17,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825100295] [2019-12-07 10:22:17,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:17,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 10:22:17,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487851180] [2019-12-07 10:22:17,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:22:17,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:17,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:22:17,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:22:17,013 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2019-12-07 10:22:17,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:17,047 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2019-12-07 10:22:17,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:22:17,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 10:22:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:17,048 INFO L225 Difference]: With dead ends: 139 [2019-12-07 10:22:17,048 INFO L226 Difference]: Without dead ends: 92 [2019-12-07 10:22:17,048 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:22:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-07 10:22:17,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2019-12-07 10:22:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 10:22:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2019-12-07 10:22:17,054 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2019-12-07 10:22:17,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:17,054 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2019-12-07 10:22:17,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:22:17,054 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2019-12-07 10:22:17,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 10:22:17,055 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:17,055 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:17,255 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 10:22:17,256 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:17,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:17,257 INFO L82 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2019-12-07 10:22:17,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:17,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441776411] [2019-12-07 10:22:17,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/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 10:22:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:17,381 INFO L264 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:22:17,382 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:17,398 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 10:22:17,398 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:22:17,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441776411] [2019-12-07 10:22:17,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:17,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 10:22:17,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091581898] [2019-12-07 10:22:17,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:22:17,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:17,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:22:17,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:22:17,422 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 8 states. [2019-12-07 10:22:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:17,622 INFO L93 Difference]: Finished difference Result 390 states and 558 transitions. [2019-12-07 10:22:17,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 10:22:17,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-12-07 10:22:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:17,625 INFO L225 Difference]: With dead ends: 390 [2019-12-07 10:22:17,625 INFO L226 Difference]: Without dead ends: 340 [2019-12-07 10:22:17,626 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 10:22:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-12-07 10:22:17,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2019-12-07 10:22:17,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 10:22:17,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2019-12-07 10:22:17,656 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 29 [2019-12-07 10:22:17,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:17,656 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2019-12-07 10:22:17,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:22:17,657 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2019-12-07 10:22:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-07 10:22:17,658 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:17,658 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:17,859 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 10:22:17,860 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:17,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:17,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1650264504, now seen corresponding path program 1 times [2019-12-07 10:22:17,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:17,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260508997] [2019-12-07 10:22:17,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 10:22:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:18,009 INFO L264 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:22:18,011 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 10:22:18,020 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 10:22:18,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260508997] [2019-12-07 10:22:18,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:18,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 10:22:18,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602991372] [2019-12-07 10:22:18,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:22:18,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:18,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:22:18,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:22:18,032 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 6 states. [2019-12-07 10:22:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:18,060 INFO L93 Difference]: Finished difference Result 325 states and 442 transitions. [2019-12-07 10:22:18,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:22:18,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2019-12-07 10:22:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:18,061 INFO L225 Difference]: With dead ends: 325 [2019-12-07 10:22:18,062 INFO L226 Difference]: Without dead ends: 191 [2019-12-07 10:22:18,062 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:22:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-12-07 10:22:18,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 120. [2019-12-07 10:22:18,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 10:22:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2019-12-07 10:22:18,073 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 44 [2019-12-07 10:22:18,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:18,073 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2019-12-07 10:22:18,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:22:18,073 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2019-12-07 10:22:18,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-07 10:22:18,074 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:18,074 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:18,275 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 10:22:18,275 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:18,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:18,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1693810360, now seen corresponding path program 1 times [2019-12-07 10:22:18,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:18,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041163344] [2019-12-07 10:22:18,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 10:22:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:18,411 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 10:22:18,413 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:18,435 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 10:22:18,435 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 10:22:18,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041163344] [2019-12-07 10:22:18,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [933249677] [2019-12-07 10:22:18,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 10:22:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:18,553 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 10:22:18,554 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:18,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 10:22:18,559 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 10:22:18,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986760600] [2019-12-07 10:22:18,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:22:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:18,674 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 10:22:18,675 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 10:22:18,680 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 10:22:18,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 10:22:18,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 10:22:18,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189870716] [2019-12-07 10:22:18,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 10:22:18,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:18,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 10:22:18,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 10:22:18,686 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand 10 states. [2019-12-07 10:22:19,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:19,172 INFO L93 Difference]: Finished difference Result 727 states and 1006 transitions. [2019-12-07 10:22:19,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 10:22:19,172 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-07 10:22:19,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:19,175 INFO L225 Difference]: With dead ends: 727 [2019-12-07 10:22:19,175 INFO L226 Difference]: Without dead ends: 636 [2019-12-07 10:22:19,176 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 10:22:19,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2019-12-07 10:22:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 217. [2019-12-07 10:22:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-12-07 10:22:19,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2019-12-07 10:22:19,193 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 45 [2019-12-07 10:22:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:19,193 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2019-12-07 10:22:19,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 10:22:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2019-12-07 10:22:19,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-12-07 10:22:19,195 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:19,195 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:19,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:22:19,796 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:19,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:19,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1880584764, now seen corresponding path program 2 times [2019-12-07 10:22:19,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:19,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986721887] [2019-12-07 10:22:19,798 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 10:22:20,367 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 10:22:20,367 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 10:22:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:22:21,330 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 10:22:21,330 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:22:21,530 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 10:22:21,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:22:21 BoogieIcfgContainer [2019-12-07 10:22:21,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:22:21,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:22:21,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:22:21,639 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:22:21,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:22:15" (3/4) ... [2019-12-07 10:22:21,641 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:22:21,715 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a0baed62-d5cd-4fe8-8c3e-39fcac428eaa/bin/utaipan/witness.graphml [2019-12-07 10:22:21,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:22:21,716 INFO L168 Benchmark]: Toolchain (without parser) took 7506.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 952.4 MB in the beginning and 857.8 MB in the end (delta: 94.6 MB). Peak memory consumption was 296.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:21,716 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 10:22:21,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:21,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.92 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 10:22:21,717 INFO L168 Benchmark]: Boogie Preprocessor took 26.87 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 10:22:21,717 INFO L168 Benchmark]: RCFGBuilder took 517.92 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: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:21,717 INFO L168 Benchmark]: TraceAbstraction took 6478.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 880.8 MB in the end (delta: 132.7 MB). Peak memory consumption was 212.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:21,718 INFO L168 Benchmark]: Witness Printer took 76.22 ms. Allocated memory is still 1.2 GB. Free memory was 880.8 MB in the beginning and 857.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:21,719 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 364.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.87 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. * RCFGBuilder took 517.92 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: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6478.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 880.8 MB in the end (delta: 132.7 MB). Peak memory consumption was 212.4 MB. Max. memory is 11.5 GB. * Witness Printer took 76.22 ms. Allocated memory is still 1.2 GB. Free memory was 880.8 MB in the beginning and 857.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] int retValue_acc ; [L488] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND TRUE \read(systemActive) [L749] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] COND TRUE ! pumpRunning [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L695] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) [L777] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L557] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L720] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L727] COND TRUE \read(systemActive) [L749] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L752] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L720] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L727] COND TRUE \read(systemActive) [L749] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L869] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.3s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 584 SDtfs, 1384 SDslu, 1290 SDs, 0 SdLazy, 288 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=8, 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, 8 MinimizatonAttempts, 728 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 60223 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1955 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 58/112 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...