./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.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_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 a7dbd4e152ee971b4407c7068d06d15a4635d510 ...................................................................................................................................... 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_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 a7dbd4e152ee971b4407c7068d06d15a4635d510 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:26:07,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:26:07,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:26:07,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:26:07,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:26:07,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:26:07,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:26:07,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:26:07,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:26:07,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:26:07,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:26:07,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:26:07,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:26:07,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:26:07,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:26:07,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:26:07,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:26:07,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:26:07,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:26:07,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:26:07,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:26:07,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:26:07,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:26:07,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:26:07,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:26:07,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:26:07,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:26:07,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:26:07,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:26:07,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:26:07,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:26:07,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:26:07,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:26:07,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:26:07,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:26:07,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:26:07,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:26:07,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:26:07,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:26:07,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:26:07,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:26:07,620 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:26:07,630 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:26:07,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:26:07,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:26:07,630 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:26:07,631 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:26:07,631 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:26:07,631 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:26:07,631 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:26:07,631 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:26:07,631 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:26:07,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:26:07,632 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:26:07,632 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:26:07,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:26:07,632 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:26:07,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:26:07,633 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:26:07,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:26:07,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:26:07,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:26:07,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:26:07,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:26:07,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:26:07,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:26:07,634 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:26:07,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:26:07,634 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:26:07,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:26:07,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:26:07,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:26:07,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:26:07,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:26:07,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:26:07,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:26:07,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:26:07,635 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:26:07,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:26:07,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:26:07,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:26:07,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:26:07,636 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_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 -> a7dbd4e152ee971b4407c7068d06d15a4635d510 [2019-12-07 13:26:07,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:26:07,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:26:07,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:26:07,750 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:26:07,750 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:26:07,751 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2019-12-07 13:26:07,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/cb51f513a/bd8e0f85dfc543bf81d1da9a48bbc67f/FLAG07d47617d [2019-12-07 13:26:08,241 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:26:08,242 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2019-12-07 13:26:08,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/cb51f513a/bd8e0f85dfc543bf81d1da9a48bbc67f/FLAG07d47617d [2019-12-07 13:26:08,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/cb51f513a/bd8e0f85dfc543bf81d1da9a48bbc67f [2019-12-07 13:26:08,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:26:08,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:26:08,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:26:08,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:26:08,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:26:08,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:26:08" (1/1) ... [2019-12-07 13:26:08,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:08, skipping insertion in model container [2019-12-07 13:26:08,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:26:08" (1/1) ... [2019-12-07 13:26:08,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:26:08,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:26:08,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:26:08,530 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 13:26:08,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69f2a664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:08, skipping insertion in model container [2019-12-07 13:26:08,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:26:08,531 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 13:26:08,532 INFO L168 Benchmark]: Toolchain (without parser) took 268.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:08,533 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:26:08,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:08,535 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: 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 13:26:09,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:26:09,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:26:09,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:26:09,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:26:09,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:26:09,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:26:09,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:26:09,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:26:09,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:26:09,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:26:09,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:26:09,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:26:09,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:26:09,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:26:09,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:26:09,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:26:09,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:26:09,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:26:09,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:26:09,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:26:09,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:26:09,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:26:09,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:26:09,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:26:09,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:26:09,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:26:09,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:26:09,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:26:09,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:26:09,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:26:09,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:26:09,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:26:09,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:26:09,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:26:09,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:26:09,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:26:09,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:26:09,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:26:09,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:26:09,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:26:09,716 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:26:09,726 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:26:09,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:26:09,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:26:09,727 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:26:09,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:26:09,727 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:26:09,728 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:26:09,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:26:09,728 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:26:09,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:26:09,728 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:26:09,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:26:09,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:26:09,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:26:09,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:26:09,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:26:09,729 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:26:09,729 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:26:09,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:26:09,730 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:26:09,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:26:09,730 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:26:09,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:26:09,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:26:09,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:26:09,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:26:09,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:26:09,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:26:09,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:26:09,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:26:09,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:26:09,731 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:26:09,731 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:26:09,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:26:09,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:26:09,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:26:09,732 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_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 -> a7dbd4e152ee971b4407c7068d06d15a4635d510 [2019-12-07 13:26:09,905 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:26:09,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:26:09,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:26:09,920 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:26:09,920 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:26:09,921 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2019-12-07 13:26:09,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/85117829c/5f68e025142d453981b0b4305cc8f942/FLAG622b06349 [2019-12-07 13:26:10,329 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:26:10,330 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2019-12-07 13:26:10,339 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/85117829c/5f68e025142d453981b0b4305cc8f942/FLAG622b06349 [2019-12-07 13:26:10,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/data/85117829c/5f68e025142d453981b0b4305cc8f942 [2019-12-07 13:26:10,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:26:10,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:26:10,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:26:10,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:26:10,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:26:10,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10, skipping insertion in model container [2019-12-07 13:26:10,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:26:10,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:26:10,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:26:10,618 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 13:26:10,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:26:10,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:26:10,667 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:26:10,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:26:10,730 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:26:10,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10 WrapperNode [2019-12-07 13:26:10,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:26:10,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:26:10,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:26:10,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:26:10,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:26:10,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:26:10,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:26:10,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:26:10,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... [2019-12-07 13:26:10,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:26:10,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:26:10,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:26:10,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:26:10,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:26:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 13:26:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:26:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:26:11,350 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:26:11,350 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-12-07 13:26:11,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:26:11 BoogieIcfgContainer [2019-12-07 13:26:11,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:26:11,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:26:11,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:26:11,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:26:11,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:26:10" (1/3) ... [2019-12-07 13:26:11,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70062100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:26:11, skipping insertion in model container [2019-12-07 13:26:11,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:26:10" (2/3) ... [2019-12-07 13:26:11,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70062100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:26:11, skipping insertion in model container [2019-12-07 13:26:11,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:26:11" (3/3) ... [2019-12-07 13:26:11,357 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2019-12-07 13:26:11,364 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:26:11,369 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 13:26:11,377 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 13:26:11,394 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:26:11,394 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:26:11,394 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:26:11,394 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:26:11,394 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:26:11,394 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:26:11,394 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:26:11,395 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:26:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-07 13:26:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 13:26:11,411 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:11,411 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:26:11,412 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:11,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:11,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2074315904, now seen corresponding path program 1 times [2019-12-07 13:26:11,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:11,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136127086] [2019-12-07 13:26:11,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:11,559 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:26:11,563 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:11,576 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 13:26:11,576 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:11,579 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 13:26:11,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136127086] [2019-12-07 13:26:11,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:26:11,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:26:11,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698670297] [2019-12-07 13:26:11,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:26:11,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:11,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:26:11,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:26:11,595 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-07 13:26:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:11,616 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2019-12-07 13:26:11,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:26:11,617 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 13:26:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:11,626 INFO L225 Difference]: With dead ends: 220 [2019-12-07 13:26:11,626 INFO L226 Difference]: Without dead ends: 109 [2019-12-07 13:26:11,629 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 13:26:11,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-07 13:26:11,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-07 13:26:11,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 13:26:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2019-12-07 13:26:11,660 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2019-12-07 13:26:11,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:11,660 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2019-12-07 13:26:11,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:26:11,660 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2019-12-07 13:26:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 13:26:11,661 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:11,661 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 13:26:11,862 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:26:11,863 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:11,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1027559007, now seen corresponding path program 1 times [2019-12-07 13:26:11,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:11,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609671441] [2019-12-07 13:26:11,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:12,122 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:26:12,124 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:12,139 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 13:26:12,140 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:12,149 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 13:26:12,150 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609671441] [2019-12-07 13:26:12,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:26:12,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:26:12,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989160597] [2019-12-07 13:26:12,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:26:12,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:12,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:26:12,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:26:12,153 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 4 states. [2019-12-07 13:26:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:12,167 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2019-12-07 13:26:12,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:26:12,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 13:26:12,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:12,169 INFO L225 Difference]: With dead ends: 109 [2019-12-07 13:26:12,169 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 13:26:12,171 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 13:26:12,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 13:26:12,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 13:26:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 13:26:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-12-07 13:26:12,177 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-12-07 13:26:12,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:12,178 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-12-07 13:26:12,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:26:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-12-07 13:26:12,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 13:26:12,179 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:12,179 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 13:26:12,379 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:26:12,380 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 109011716, now seen corresponding path program 1 times [2019-12-07 13:26:12,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:12,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71673310] [2019-12-07 13:26:12,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:12,531 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:26:12,532 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:12,539 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 13:26:12,539 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:12,545 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 13:26:12,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71673310] [2019-12-07 13:26:12,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:26:12,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:26:12,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510212672] [2019-12-07 13:26:12,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:26:12,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:12,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:26:12,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:26:12,547 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2019-12-07 13:26:12,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:12,612 INFO L93 Difference]: Finished difference Result 152 states and 226 transitions. [2019-12-07 13:26:12,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:26:12,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 13:26:12,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:12,614 INFO L225 Difference]: With dead ends: 152 [2019-12-07 13:26:12,615 INFO L226 Difference]: Without dead ends: 111 [2019-12-07 13:26:12,615 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 13:26:12,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-12-07 13:26:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 66. [2019-12-07 13:26:12,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 13:26:12,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2019-12-07 13:26:12,626 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 22 [2019-12-07 13:26:12,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:12,627 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2019-12-07 13:26:12,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:26:12,627 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2019-12-07 13:26:12,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 13:26:12,628 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:12,628 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:26:12,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:26:12,830 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:12,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:12,831 INFO L82 PathProgramCache]: Analyzing trace with hash 60563277, now seen corresponding path program 1 times [2019-12-07 13:26:12,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:12,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455272045] [2019-12-07 13:26:12,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:13,014 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:26:13,016 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:13,020 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 13:26:13,021 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:26:13,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455272045] [2019-12-07 13:26:13,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:26:13,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:26:13,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200424315] [2019-12-07 13:26:13,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:26:13,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:13,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:26:13,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:26:13,024 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2019-12-07 13:26:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:13,080 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2019-12-07 13:26:13,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:26:13,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 13:26:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:13,082 INFO L225 Difference]: With dead ends: 147 [2019-12-07 13:26:13,082 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 13:26:13,083 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 13:26:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 13:26:13,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2019-12-07 13:26:13,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 13:26:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions. [2019-12-07 13:26:13,093 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 24 [2019-12-07 13:26:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:13,094 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 121 transitions. [2019-12-07 13:26:13,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:26:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions. [2019-12-07 13:26:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 13:26:13,095 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:13,095 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:26:13,296 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:26:13,298 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:13,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:13,299 INFO L82 PathProgramCache]: Analyzing trace with hash -445763815, now seen corresponding path program 1 times [2019-12-07 13:26:13,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:13,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719302274] [2019-12-07 13:26:13,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:13,441 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:26:13,443 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:13,456 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 13:26:13,456 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:13,476 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 13:26:13,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719302274] [2019-12-07 13:26:13,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:26:13,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 13:26:13,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275581522] [2019-12-07 13:26:13,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:26:13,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:13,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:26:13,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:26:13,478 INFO L87 Difference]: Start difference. First operand 85 states and 121 transitions. Second operand 8 states. [2019-12-07 13:26:13,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:13,728 INFO L93 Difference]: Finished difference Result 608 states and 892 transitions. [2019-12-07 13:26:13,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 13:26:13,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 13:26:13,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:13,732 INFO L225 Difference]: With dead ends: 608 [2019-12-07 13:26:13,732 INFO L226 Difference]: Without dead ends: 529 [2019-12-07 13:26:13,733 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 13:26:13,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-12-07 13:26:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 212. [2019-12-07 13:26:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-12-07 13:26:13,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 296 transitions. [2019-12-07 13:26:13,763 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 296 transitions. Word has length 25 [2019-12-07 13:26:13,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:13,763 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 296 transitions. [2019-12-07 13:26:13,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:26:13,764 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 296 transitions. [2019-12-07 13:26:13,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 13:26:13,766 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:13,766 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:26:13,967 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 13:26:13,968 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:13,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:13,969 INFO L82 PathProgramCache]: Analyzing trace with hash 371468141, now seen corresponding path program 1 times [2019-12-07 13:26:13,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:13,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881532060] [2019-12-07 13:26:13,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:14,205 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:26:14,208 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:26:14,220 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:14,241 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:26:14,241 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881532060] [2019-12-07 13:26:14,241 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [104332136] [2019-12-07 13:26:14,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:26:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:14,331 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:26:14,332 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:26:14,355 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:26:14,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:26:14,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 13:26:14,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207204325] [2019-12-07 13:26:14,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:26:14,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:14,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:26:14,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:26:14,359 INFO L87 Difference]: Start difference. First operand 212 states and 296 transitions. Second operand 5 states. [2019-12-07 13:26:14,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:14,516 INFO L93 Difference]: Finished difference Result 498 states and 707 transitions. [2019-12-07 13:26:14,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:26:14,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-12-07 13:26:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:14,520 INFO L225 Difference]: With dead ends: 498 [2019-12-07 13:26:14,520 INFO L226 Difference]: Without dead ends: 496 [2019-12-07 13:26:14,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 13:26:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-12-07 13:26:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 212. [2019-12-07 13:26:14,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-12-07 13:26:14,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 294 transitions. [2019-12-07 13:26:14,542 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 294 transitions. Word has length 41 [2019-12-07 13:26:14,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:14,542 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 294 transitions. [2019-12-07 13:26:14,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:26:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 294 transitions. [2019-12-07 13:26:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 13:26:14,544 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:14,544 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:26:14,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:26:14,946 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:14,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:14,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1694698835, now seen corresponding path program 1 times [2019-12-07 13:26:14,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:14,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896886887] [2019-12-07 13:26:14,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:15,097 INFO L264 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:26:15,099 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:26:15,108 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:26:15,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896886887] [2019-12-07 13:26:15,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1038153339] [2019-12-07 13:26:15,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/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 13:26:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:15,224 INFO L264 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:26:15,226 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:15,248 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:26:15,248 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:15,251 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:26:15,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:26:15,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 13:26:15,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659547075] [2019-12-07 13:26:15,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:26:15,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:15,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:26:15,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:26:15,253 INFO L87 Difference]: Start difference. First operand 212 states and 294 transitions. Second operand 5 states. [2019-12-07 13:26:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:15,322 INFO L93 Difference]: Finished difference Result 647 states and 890 transitions. [2019-12-07 13:26:15,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:26:15,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2019-12-07 13:26:15,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:15,324 INFO L225 Difference]: With dead ends: 647 [2019-12-07 13:26:15,324 INFO L226 Difference]: Without dead ends: 441 [2019-12-07 13:26:15,325 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-12-07 13:26:15,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-12-07 13:26:15,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 227. [2019-12-07 13:26:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-12-07 13:26:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 309 transitions. [2019-12-07 13:26:15,339 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 309 transitions. Word has length 48 [2019-12-07 13:26:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:15,339 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 309 transitions. [2019-12-07 13:26:15,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:26:15,339 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 309 transitions. [2019-12-07 13:26:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 13:26:15,340 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:15,340 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:26:15,741 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 [2019-12-07 13:26:15,742 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:15,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1301671825, now seen corresponding path program 1 times [2019-12-07 13:26:15,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:15,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052509287] [2019-12-07 13:26:15,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 13:26:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:15,842 INFO L264 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:26:15,844 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:26:15,854 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:26:15,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052509287] [2019-12-07 13:26:15,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1368294305] [2019-12-07 13:26:15,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:26:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:15,963 INFO L264 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:26:15,964 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:26:15,991 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:26:16,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:26:16,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [3, 3] total 11 [2019-12-07 13:26:16,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069082437] [2019-12-07 13:26:16,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 13:26:16,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:16,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 13:26:16,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-12-07 13:26:16,013 INFO L87 Difference]: Start difference. First operand 227 states and 309 transitions. Second operand 7 states. [2019-12-07 13:26:16,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:16,111 INFO L93 Difference]: Finished difference Result 604 states and 821 transitions. [2019-12-07 13:26:16,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:26:16,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2019-12-07 13:26:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:16,114 INFO L225 Difference]: With dead ends: 604 [2019-12-07 13:26:16,114 INFO L226 Difference]: Without dead ends: 383 [2019-12-07 13:26:16,115 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2019-12-07 13:26:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-12-07 13:26:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 205. [2019-12-07 13:26:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-12-07 13:26:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 274 transitions. [2019-12-07 13:26:16,136 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 274 transitions. Word has length 48 [2019-12-07 13:26:16,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:16,136 INFO L462 AbstractCegarLoop]: Abstraction has 205 states and 274 transitions. [2019-12-07 13:26:16,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 13:26:16,136 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 274 transitions. [2019-12-07 13:26:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-07 13:26:16,137 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:16,137 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:26:16,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 mathsat -unsat_core_generation=3 [2019-12-07 13:26:16,540 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:16,541 INFO L82 PathProgramCache]: Analyzing trace with hash -103400707, now seen corresponding path program 1 times [2019-12-07 13:26:16,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:16,543 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119145177] [2019-12-07 13:26:16,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 13:26:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:16,697 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:26:16,699 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:16,720 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 13:26:16,720 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:16,751 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 13:26:16,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119145177] [2019-12-07 13:26:16,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [774354940] [2019-12-07 13:26:16,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:26:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:16,844 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:26:16,845 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:16,857 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 13:26:16,858 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:16,866 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 13:26:16,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670811294] [2019-12-07 13:26:16,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:26:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:26:16,967 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:26:16,968 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:26:16,978 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 13:26:16,978 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:26:16,983 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 13:26:16,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 13:26:16,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 13:26:16,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816430415] [2019-12-07 13:26:16,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 13:26:16,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:26:16,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 13:26:16,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:26:16,984 INFO L87 Difference]: Start difference. First operand 205 states and 274 transitions. Second operand 10 states. [2019-12-07 13:26:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:26:17,568 INFO L93 Difference]: Finished difference Result 1277 states and 1754 transitions. [2019-12-07 13:26:17,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 13:26:17,568 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2019-12-07 13:26:17,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:26:17,574 INFO L225 Difference]: With dead ends: 1277 [2019-12-07 13:26:17,574 INFO L226 Difference]: Without dead ends: 1120 [2019-12-07 13:26:17,576 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 283 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 13:26:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2019-12-07 13:26:17,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 341. [2019-12-07 13:26:17,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-12-07 13:26:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 463 transitions. [2019-12-07 13:26:17,615 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 463 transitions. Word has length 50 [2019-12-07 13:26:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:26:17,616 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 463 transitions. [2019-12-07 13:26:17,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 13:26:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 463 transitions. [2019-12-07 13:26:17,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 13:26:17,617 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:26:17,617 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 13:26:18,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3,14 cvc4 --incremental --print-success --lang smt --rewrite-divk,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:26:18,218 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:26:18,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:26:18,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1377844072, now seen corresponding path program 2 times [2019-12-07 13:26:18,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:26:18,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631964331] [2019-12-07 13:26:18,219 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2019-12-07 13:26:19,360 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 13:26:19,360 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 13:26:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:26:20,145 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 13:26:20,145 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:26:20,346 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-12-07 13:26:20,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:26:20 BoogieIcfgContainer [2019-12-07 13:26:20,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:26:20,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:26:20,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:26:20,489 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:26:20,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:26:11" (3/4) ... [2019-12-07 13:26:20,490 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:26:20,580 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0af2da1d-a1d4-46a3-9d89-b3d20fdf077a/bin/utaipan/witness.graphml [2019-12-07 13:26:20,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:26:20,582 INFO L168 Benchmark]: Toolchain (without parser) took 10231.13 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.0 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -67.1 MB). Peak memory consumption was 256.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:20,582 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:26:20,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:20,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:20,582 INFO L168 Benchmark]: Boogie Preprocessor took 32.15 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 13:26:20,583 INFO L168 Benchmark]: RCFGBuilder took 541.37 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: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:20,583 INFO L168 Benchmark]: TraceAbstraction took 9135.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 179.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -13.2 MB). Peak memory consumption was 166.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:20,583 INFO L168 Benchmark]: Witness Printer took 91.93 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 13:26:20,584 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 541.37 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: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9135.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 179.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -13.2 MB). Peak memory consumption was 166.7 MB. Max. memory is 11.5 GB. * Witness Printer took 91.93 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 329]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L434] int waterLevel = 1; [L435] int methaneLevelCritical = 0; [L697] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L946] int retValue_acc ; [L949] retValue_acc = 1 [L950] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L452] COND TRUE waterLevel < 2 [L453] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L320] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND FALSE !(\read(pumpRunning)) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L514] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L517] COND FALSE !(waterLevel < 2) [L521] retValue_acc = 0 [L522] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int tmp ; [L896] int tmp___0 ; [L505] int retValue_acc ; [L508] retValue_acc = waterLevel [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] tmp = getWaterLevel() [L902] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L320] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L440] COND TRUE waterLevel > 0 [L441] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND TRUE \read(pumpRunning) [L227] int retValue_acc ; [L473] int retValue_acc ; [L476] retValue_acc = methaneLevelCritical [L477] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L231] retValue_acc = isMethaneLevelCritical() [L233] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L191] tmp = isMethaneAlarm() [L193] COND FALSE !(\read(tmp)) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int tmp ; [L896] int tmp___0 ; [L505] int retValue_acc ; [L508] retValue_acc = waterLevel [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L900] tmp = getWaterLevel() [L902] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L320] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L440] COND TRUE waterLevel > 0 [L441] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L138] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L189] COND TRUE \read(pumpRunning) [L227] int retValue_acc ; [L473] int retValue_acc ; [L476] retValue_acc = methaneLevelCritical [L477] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L231] retValue_acc = isMethaneLevelCritical() [L233] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L191] tmp = isMethaneAlarm() [L193] COND FALSE !(\read(tmp)) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L895] int tmp ; [L896] int tmp___0 ; [L505] int retValue_acc ; [L508] retValue_acc = waterLevel [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L900] tmp = getWaterLevel() [L902] COND TRUE tmp == 0 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L904] tmp___0 = isPumpRunning() [L906] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L329] __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, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 988 SDtfs, 2474 SDslu, 2301 SDs, 0 SdLazy, 428 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1070 GetRequests, 990 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1819 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 597 NumberOfCodeBlocks, 597 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1028 ConstructedInterpolants, 0 QuantifiedInterpolants, 120980 SizeOfPredicates, 30 NumberOfNonLiveVariables, 2860 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 28 InterpolantComputations, 16 PerfectInterpolantSequences, 172/256 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...