./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.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_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 209a5f451d4da606f6f89775a0cb8490169e98a1 ...................................................................................................................................... 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_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 209a5f451d4da606f6f89775a0cb8490169e98a1 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:09:41,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:09:41,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:09:41,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:09:41,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:09:41,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:09:41,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:09:41,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:09:41,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:09:41,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:09:41,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:09:41,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:09:41,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:09:41,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:09:41,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:09:41,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:09:41,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:09:41,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:09:41,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:09:41,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:09:41,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:09:41,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:09:41,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:09:41,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:09:41,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:09:41,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:09:41,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:09:41,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:09:41,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:09:41,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:09:41,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:09:41,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:09:41,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:09:41,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:09:41,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:09:41,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:09:41,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:09:41,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:09:41,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:09:41,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:09:41,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:09:41,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 22:09:41,598 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:09:41,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:09:41,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:09:41,599 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:09:41,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:09:41,599 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:09:41,599 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 22:09:41,599 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:09:41,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:09:41,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 22:09:41,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 22:09:41,600 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:09:41,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 22:09:41,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 22:09:41,600 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 22:09:41,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:09:41,601 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:09:41,602 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:09:41,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:09:41,602 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:09:41,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:09:41,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:09:41,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:09:41,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:09:41,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:09:41,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:09:41,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:09:41,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:09:41,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 22:09:41,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 22:09:41,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:09:41,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:09:41,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:09:41,604 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_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2019-12-07 22:09:41,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:09:41,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:09:41,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:09:41,712 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:09:41,712 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:09:41,713 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-12-07 22:09:41,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/0b52e803b/2b40e96ad7554f0789b57f78241ca245/FLAGc7a35f799 [2019-12-07 22:09:42,186 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:09:42,186 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-12-07 22:09:42,194 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/0b52e803b/2b40e96ad7554f0789b57f78241ca245/FLAGc7a35f799 [2019-12-07 22:09:42,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/0b52e803b/2b40e96ad7554f0789b57f78241ca245 [2019-12-07 22:09:42,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:09:42,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:09:42,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:09:42,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:09:42,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:09:42,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:09:42" (1/1) ... [2019-12-07 22:09:42,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c28c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:42, skipping insertion in model container [2019-12-07 22:09:42,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:09:42" (1/1) ... [2019-12-07 22:09:42,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:09:42,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:09:42,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:09:42,452 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 22:09:42,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ae22e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:42, skipping insertion in model container [2019-12-07 22:09:42,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:09:42,453 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 22:09:42,455 INFO L168 Benchmark]: Toolchain (without parser) took 249.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:42,455 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:09:42,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:42,457 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 201]: 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 22:09:43,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:09:43,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:09:43,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:09:43,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:09:43,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:09:43,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:09:43,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:09:43,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:09:43,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:09:43,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:09:43,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:09:43,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:09:43,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:09:43,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:09:43,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:09:43,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:09:43,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:09:43,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:09:43,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:09:43,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:09:43,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:09:43,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:09:43,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:09:43,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:09:43,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:09:43,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:09:43,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:09:43,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:09:43,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:09:43,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:09:43,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:09:43,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:09:43,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:09:43,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:09:43,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:09:43,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:09:43,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:09:43,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:09:43,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:09:43,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:09:43,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 22:09:43,638 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:09:43,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:09:43,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:09:43,639 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:09:43,639 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:09:43,639 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:09:43,639 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:09:43,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:09:43,639 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:09:43,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:09:43,640 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:09:43,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:09:43,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:09:43,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:09:43,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:09:43,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:09:43,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:09:43,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 22:09:43,641 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 22:09:43,641 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:09:43,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:09:43,642 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:09:43,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:09:43,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:09:43,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 22:09:43,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:09:43,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:09:43,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:09:43,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:09:43,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:09:43,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:09:43,643 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 22:09:43,643 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 22:09:43,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:09:43,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:09:43,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:09:43,644 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_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2019-12-07 22:09:43,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:09:43,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:09:43,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:09:43,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:09:43,821 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:09:43,821 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-12-07 22:09:43,869 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/42b8de71d/6bd1507c2fc04cf6903a5c59275b5d85/FLAG6e2a46662 [2019-12-07 22:09:44,224 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:09:44,224 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-12-07 22:09:44,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/42b8de71d/6bd1507c2fc04cf6903a5c59275b5d85/FLAG6e2a46662 [2019-12-07 22:09:44,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/data/42b8de71d/6bd1507c2fc04cf6903a5c59275b5d85 [2019-12-07 22:09:44,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:09:44,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:09:44,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:09:44,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:09:44,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:09:44,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,250 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 10:09:44, skipping insertion in model container [2019-12-07 22:09:44,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:09:44,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:09:44,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:09:44,502 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 22:09:44,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:09:44,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:09:44,552 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 22:09:44,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:09:44,616 INFO L208 MainTranslator]: Completed translation [2019-12-07 22:09:44,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44 WrapperNode [2019-12-07 22:09:44,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:09:44,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 22:09:44,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 22:09:44,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 22:09:44,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 22:09:44,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 22:09:44,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 22:09:44,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 22:09:44,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... [2019-12-07 22:09:44,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 22:09:44,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 22:09:44,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 22:09:44,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 22:09:44,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 22:09:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 22:09:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 22:09:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 22:09:45,302 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 22:09:45,303 INFO L287 CfgBuilder]: Removed 194 assume(true) statements. [2019-12-07 22:09:45,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:09:45 BoogieIcfgContainer [2019-12-07 22:09:45,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 22:09:45,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 22:09:45,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 22:09:45,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 22:09:45,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:09:44" (1/3) ... [2019-12-07 22:09:45,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24964334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:09:45, skipping insertion in model container [2019-12-07 22:09:45,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:44" (2/3) ... [2019-12-07 22:09:45,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24964334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:09:45, skipping insertion in model container [2019-12-07 22:09:45,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:09:45" (3/3) ... [2019-12-07 22:09:45,309 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2019-12-07 22:09:45,316 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 22:09:45,321 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 22:09:45,330 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 22:09:45,347 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 22:09:45,347 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 22:09:45,347 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 22:09:45,347 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 22:09:45,348 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 22:09:45,348 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 22:09:45,348 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 22:09:45,348 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 22:09:45,360 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-12-07 22:09:45,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 22:09:45,365 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:45,366 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:09:45,366 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:45,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:45,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1027746333, now seen corresponding path program 1 times [2019-12-07 22:09:45,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:45,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352362615] [2019-12-07 22:09:45,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:45,515 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 22:09:45,519 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:45,529 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 22:09:45,529 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:45,533 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 22:09:45,533 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352362615] [2019-12-07 22:09:45,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:45,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 22:09:45,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147874325] [2019-12-07 22:09:45,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 22:09:45,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:45,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 22:09:45,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 22:09:45,548 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-12-07 22:09:45,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:45,571 INFO L93 Difference]: Finished difference Result 252 states and 377 transitions. [2019-12-07 22:09:45,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 22:09:45,573 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 22:09:45,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:45,581 INFO L225 Difference]: With dead ends: 252 [2019-12-07 22:09:45,581 INFO L226 Difference]: Without dead ends: 125 [2019-12-07 22:09:45,584 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 22:09:45,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-12-07 22:09:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-12-07 22:09:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-12-07 22:09:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2019-12-07 22:09:45,616 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 180 transitions. Word has length 16 [2019-12-07 22:09:45,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:45,617 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-12-07 22:09:45,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 22:09:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 180 transitions. [2019-12-07 22:09:45,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 22:09:45,617 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:45,618 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 22:09:45,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 22:09:45,818 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:45,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:45,819 INFO L82 PathProgramCache]: Analyzing trace with hash -2074503230, now seen corresponding path program 1 times [2019-12-07 22:09:45,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:45,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354503362] [2019-12-07 22:09:45,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:45,936 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:09:45,938 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:45,951 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 22:09:45,951 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:45,960 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 22:09:45,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354503362] [2019-12-07 22:09:45,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:45,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 22:09:45,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101545284] [2019-12-07 22:09:45,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:09:45,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:45,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:09:45,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:09:45,962 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. Second operand 4 states. [2019-12-07 22:09:45,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:45,975 INFO L93 Difference]: Finished difference Result 125 states and 180 transitions. [2019-12-07 22:09:45,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:09:45,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 22:09:45,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:45,976 INFO L225 Difference]: With dead ends: 125 [2019-12-07 22:09:45,976 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 22:09:45,977 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 22:09:45,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 22:09:45,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-12-07 22:09:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-12-07 22:09:45,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2019-12-07 22:09:45,982 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 17 [2019-12-07 22:09:45,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:45,982 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2019-12-07 22:09:45,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:09:45,982 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2019-12-07 22:09:45,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 22:09:45,983 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:45,983 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 22:09:46,183 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 22:09:46,184 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:46,185 INFO L82 PathProgramCache]: Analyzing trace with hash 640818778, now seen corresponding path program 1 times [2019-12-07 22:09:46,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:46,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178009774] [2019-12-07 22:09:46,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:46,371 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:09:46,373 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:46,381 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 22:09:46,381 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:46,389 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 22:09:46,389 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178009774] [2019-12-07 22:09:46,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:46,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 22:09:46,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319612189] [2019-12-07 22:09:46,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:09:46,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:46,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:09:46,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:09:46,391 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 4 states. [2019-12-07 22:09:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:46,440 INFO L93 Difference]: Finished difference Result 96 states and 140 transitions. [2019-12-07 22:09:46,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:09:46,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 22:09:46,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:46,441 INFO L225 Difference]: With dead ends: 96 [2019-12-07 22:09:46,441 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 22:09:46,442 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 22:09:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 22:09:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-12-07 22:09:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-12-07 22:09:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2019-12-07 22:09:46,449 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 22 [2019-12-07 22:09:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:46,450 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2019-12-07 22:09:46,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:09:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2019-12-07 22:09:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 22:09:46,451 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:46,451 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 22:09:46,652 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 22:09:46,653 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:46,654 INFO L82 PathProgramCache]: Analyzing trace with hash -855709928, now seen corresponding path program 1 times [2019-12-07 22:09:46,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:46,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202662024] [2019-12-07 22:09:46,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:46,815 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:09:46,817 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:46,822 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 22:09:46,823 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:09:46,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202662024] [2019-12-07 22:09:46,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:46,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 22:09:46,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731420264] [2019-12-07 22:09:46,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:09:46,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:46,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:09:46,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:09:46,828 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 3 states. [2019-12-07 22:09:46,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:46,883 INFO L93 Difference]: Finished difference Result 117 states and 168 transitions. [2019-12-07 22:09:46,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:09:46,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 22:09:46,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:46,885 INFO L225 Difference]: With dead ends: 117 [2019-12-07 22:09:46,885 INFO L226 Difference]: Without dead ends: 72 [2019-12-07 22:09:46,885 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 22:09:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-12-07 22:09:46,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2019-12-07 22:09:46,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 22:09:46,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2019-12-07 22:09:46,895 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 24 [2019-12-07 22:09:46,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:46,895 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2019-12-07 22:09:46,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:09:46,895 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2019-12-07 22:09:46,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 22:09:46,896 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:46,897 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:09:47,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 22:09:47,098 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:47,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:47,099 INFO L82 PathProgramCache]: Analyzing trace with hash -407287284, now seen corresponding path program 1 times [2019-12-07 22:09:47,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:47,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316094345] [2019-12-07 22:09:47,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:47,242 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 22:09:47,243 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:47,256 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 22:09:47,256 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:47,281 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 22:09:47,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316094345] [2019-12-07 22:09:47,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:47,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 22:09:47,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125433587] [2019-12-07 22:09:47,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 22:09:47,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:47,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 22:09:47,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 22:09:47,283 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand 8 states. [2019-12-07 22:09:47,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:47,518 INFO L93 Difference]: Finished difference Result 518 states and 751 transitions. [2019-12-07 22:09:47,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 22:09:47,518 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-12-07 22:09:47,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:47,521 INFO L225 Difference]: With dead ends: 518 [2019-12-07 22:09:47,521 INFO L226 Difference]: Without dead ends: 454 [2019-12-07 22:09:47,522 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 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 22:09:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-07 22:09:47,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 169. [2019-12-07 22:09:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-12-07 22:09:47,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 234 transitions. [2019-12-07 22:09:47,543 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 234 transitions. Word has length 30 [2019-12-07 22:09:47,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:47,543 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 234 transitions. [2019-12-07 22:09:47,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 22:09:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 234 transitions. [2019-12-07 22:09:47,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 22:09:47,545 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:47,545 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, 1, 1, 1] [2019-12-07 22:09:47,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 22:09:47,747 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:47,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:47,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2129473089, now seen corresponding path program 1 times [2019-12-07 22:09:47,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:47,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885503051] [2019-12-07 22:09:47,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:47,934 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 22:09:47,937 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:47,949 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 22:09:47,949 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:47,953 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 22:09:47,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885503051] [2019-12-07 22:09:47,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:47,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 22:09:47,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115488542] [2019-12-07 22:09:47,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 22:09:47,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:47,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 22:09:47,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 22:09:47,955 INFO L87 Difference]: Start difference. First operand 169 states and 234 transitions. Second operand 5 states. [2019-12-07 22:09:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:48,020 INFO L93 Difference]: Finished difference Result 458 states and 627 transitions. [2019-12-07 22:09:48,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 22:09:48,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-12-07 22:09:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:48,022 INFO L225 Difference]: With dead ends: 458 [2019-12-07 22:09:48,022 INFO L226 Difference]: Without dead ends: 295 [2019-12-07 22:09:48,024 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 22:09:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2019-12-07 22:09:48,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 184. [2019-12-07 22:09:48,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-12-07 22:09:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2019-12-07 22:09:48,045 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 51 [2019-12-07 22:09:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:48,045 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2019-12-07 22:09:48,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 22:09:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2019-12-07 22:09:48,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 22:09:48,048 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:48,048 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, 1, 1, 1] [2019-12-07 22:09:48,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 22:09:48,250 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:48,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:48,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1463894333, now seen corresponding path program 1 times [2019-12-07 22:09:48,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:48,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781864544] [2019-12-07 22:09:48,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 22:09:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:48,401 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 22:09:48,402 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:48,411 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 22:09:48,411 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 22:09:48,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781864544] [2019-12-07 22:09:48,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:48,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 22:09:48,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565195208] [2019-12-07 22:09:48,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:09:48,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:48,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:09:48,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 22:09:48,424 INFO L87 Difference]: Start difference. First operand 184 states and 249 transitions. Second operand 6 states. [2019-12-07 22:09:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:48,469 INFO L93 Difference]: Finished difference Result 420 states and 567 transitions. [2019-12-07 22:09:48,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 22:09:48,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2019-12-07 22:09:48,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:48,471 INFO L225 Difference]: With dead ends: 420 [2019-12-07 22:09:48,471 INFO L226 Difference]: Without dead ends: 242 [2019-12-07 22:09:48,472 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 22:09:48,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-12-07 22:09:48,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 154. [2019-12-07 22:09:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 22:09:48,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2019-12-07 22:09:48,483 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 51 [2019-12-07 22:09:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:48,483 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2019-12-07 22:09:48,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:09:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2019-12-07 22:09:48,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-12-07 22:09:48,485 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:48,485 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, 1, 1] [2019-12-07 22:09:48,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 22:09:48,687 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:48,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:48,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1981323655, now seen corresponding path program 1 times [2019-12-07 22:09:48,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:48,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503561038] [2019-12-07 22:09:48,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/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 22:09:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:48,843 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 22:09:48,845 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:48,866 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 22:09:48,866 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:48,871 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 22:09:48,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503561038] [2019-12-07 22:09:48,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:48,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 22:09:48,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841544401] [2019-12-07 22:09:48,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:09:48,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:48,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:09:48,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 22:09:48,873 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand 6 states. [2019-12-07 22:09:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:49,002 INFO L93 Difference]: Finished difference Result 756 states and 1034 transitions. [2019-12-07 22:09:49,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 22:09:49,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2019-12-07 22:09:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:49,005 INFO L225 Difference]: With dead ends: 756 [2019-12-07 22:09:49,005 INFO L226 Difference]: Without dead ends: 608 [2019-12-07 22:09:49,006 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-12-07 22:09:49,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-12-07 22:09:49,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 300. [2019-12-07 22:09:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-07 22:09:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 394 transitions. [2019-12-07 22:09:49,026 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 394 transitions. Word has length 52 [2019-12-07 22:09:49,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:49,026 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 394 transitions. [2019-12-07 22:09:49,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:09:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 394 transitions. [2019-12-07 22:09:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 22:09:49,028 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:49,028 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:09:49,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 22:09:49,229 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:49,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:49,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1599009123, now seen corresponding path program 1 times [2019-12-07 22:09:49,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:49,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357401369] [2019-12-07 22:09:49,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 22:09:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:49,326 INFO L264 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:09:49,328 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:09:49,338 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:09:49,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357401369] [2019-12-07 22:09:49,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1472033905] [2019-12-07 22:09:49,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 22:09:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:49,450 INFO L264 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 22:09:49,452 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-07 22:09:49,478 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:49,481 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-07 22:09:49,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 22:09:49,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 22:09:49,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338181234] [2019-12-07 22:09:49,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 22:09:49,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:49,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 22:09:49,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 22:09:49,482 INFO L87 Difference]: Start difference. First operand 300 states and 394 transitions. Second operand 5 states. [2019-12-07 22:09:49,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:49,623 INFO L93 Difference]: Finished difference Result 800 states and 1059 transitions. [2019-12-07 22:09:49,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 22:09:49,624 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-12-07 22:09:49,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:49,629 INFO L225 Difference]: With dead ends: 800 [2019-12-07 22:09:49,629 INFO L226 Difference]: Without dead ends: 798 [2019-12-07 22:09:49,629 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 204 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 22:09:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2019-12-07 22:09:49,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 300. [2019-12-07 22:09:49,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-07 22:09:49,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 392 transitions. [2019-12-07 22:09:49,667 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 392 transitions. Word has length 53 [2019-12-07 22:09:49,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:49,668 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 392 transitions. [2019-12-07 22:09:49,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 22:09:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 392 transitions. [2019-12-07 22:09:49,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 22:09:49,669 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:49,669 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, 1, 1, 1] [2019-12-07 22:09:50,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 22:09:50,070 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:50,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:50,070 INFO L82 PathProgramCache]: Analyzing trace with hash 596801484, now seen corresponding path program 1 times [2019-12-07 22:09:50,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:50,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299291224] [2019-12-07 22:09:50,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 22:09:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:50,178 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 22:09:50,180 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:50,207 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 22:09:50,207 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:50,243 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 22:09:50,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299291224] [2019-12-07 22:09:50,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1815019304] [2019-12-07 22:09:50,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 22:09:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:50,351 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 22:09:50,353 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:50,358 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 22:09:50,358 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:50,363 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 22:09:50,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711210347] [2019-12-07 22:09:50,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:09:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:50,527 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 22:09:50,528 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:50,536 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 22:09:50,536 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:50,541 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 22:09:50,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 22:09:50,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 22:09:50,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361908506] [2019-12-07 22:09:50,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 22:09:50,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:09:50,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 22:09:50,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 22:09:50,542 INFO L87 Difference]: Start difference. First operand 300 states and 392 transitions. Second operand 10 states. [2019-12-07 22:09:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:51,185 INFO L93 Difference]: Finished difference Result 1973 states and 2625 transitions. [2019-12-07 22:09:51,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 22:09:51,185 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2019-12-07 22:09:51,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:51,192 INFO L225 Difference]: With dead ends: 1973 [2019-12-07 22:09:51,192 INFO L226 Difference]: Without dead ends: 1727 [2019-12-07 22:09:51,193 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 22:09:51,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2019-12-07 22:09:51,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 538. [2019-12-07 22:09:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-07 22:09:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 714 transitions. [2019-12-07 22:09:51,234 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 714 transitions. Word has length 53 [2019-12-07 22:09:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:51,234 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 714 transitions. [2019-12-07 22:09:51,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 22:09:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 714 transitions. [2019-12-07 22:09:51,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-07 22:09:51,236 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:51,236 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, 1, 1, 1] [2019-12-07 22:09:51,837 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2019-12-07 22:09:51,840 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:51,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:51,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1994887391, now seen corresponding path program 2 times [2019-12-07 22:09:51,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:09:51,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256729116] [2019-12-07 22:09:51,843 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2019-12-07 22:09:52,747 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 22:09:52,748 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 22:09:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 22:09:53,547 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 22:09:53,547 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 22:09:53,748 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-12-07 22:09:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:09:53 BoogieIcfgContainer [2019-12-07 22:09:53,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 22:09:53,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 22:09:53,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 22:09:53,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 22:09:53,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:09:45" (3/4) ... [2019-12-07 22:09:53,872 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 22:09:53,950 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_376e17f3-20fb-4e0e-bd8b-01c510045ddd/bin/utaipan/witness.graphml [2019-12-07 22:09:53,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 22:09:53,952 INFO L168 Benchmark]: Toolchain (without parser) took 9706.58 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.7 MB). Free memory was 951.0 MB in the beginning and 947.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 320.4 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:53,952 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 22:09:53,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:53,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:53,952 INFO L168 Benchmark]: Boogie Preprocessor took 34.89 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 22:09:53,953 INFO L168 Benchmark]: RCFGBuilder took 603.31 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: 94.8 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:53,953 INFO L168 Benchmark]: TraceAbstraction took 8564.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 974.1 MB in the end (delta: 35.2 MB). Peak memory consumption was 215.6 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:53,953 INFO L168 Benchmark]: Witness Printer took 80.74 ms. Allocated memory is still 1.3 GB. Free memory was 974.1 MB in the beginning and 947.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:53,954 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 371.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.30 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.89 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 603.31 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: 94.8 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8564.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 974.1 MB in the end (delta: 35.2 MB). Peak memory consumption was 215.6 MB. Max. memory is 11.5 GB. * Witness Printer took 80.74 ms. Allocated memory is still 1.3 GB. Free memory was 974.1 MB in the beginning and 947.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] COND TRUE waterLevel < 2 [L777] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning [L731] int retValue_acc ; [L732] int tmp ; [L733] int tmp___0 ; [L838] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] COND FALSE !(waterLevel < 2) [L845] retValue_acc = 0 [L846] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] tmp = isHighWaterSensorDry() [L739] COND FALSE !(\read(tmp)) [L742] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L744] retValue_acc = tmp___0 [L745] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) [L650] int tmp ; [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp = isMethaneAlarm() [L656] COND FALSE !(\read(tmp)) [L645] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L864] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND TRUE \read(pumpRunning) [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L620] COND TRUE \read(pumpRunning) [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] tmp = getWaterLevel() [L155] COND TRUE tmp == 0 [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L157] tmp___0 = isPumpRunning() [L159] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L543] __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, 129 locations, 3 error locations. Result: UNSAFE, OverallTime: 8.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1165 SDtfs, 2685 SDslu, 2830 SDs, 0 SdLazy, 492 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1076 GetRequests, 997 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=538occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 2481 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 600 NumberOfCodeBlocks, 600 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1030 ConstructedInterpolants, 0 QuantifiedInterpolants, 129008 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2738 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 192/256 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...