./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 ad65d1d3307a121fce5b7d95113e2f3f66b04b5a ...................................................................................................................................... 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_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 ad65d1d3307a121fce5b7d95113e2f3f66b04b5a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:21:35,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:21:35,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:21:35,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:21:35,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:21:35,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:21:35,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:21:35,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:21:35,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:21:35,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:21:35,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:21:35,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:21:35,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:21:35,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:21:35,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:21:35,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:21:35,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:21:35,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:21:35,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:21:35,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:21:35,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:21:35,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:21:35,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:21:35,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:21:35,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:21:35,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:21:35,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:21:35,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:21:35,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:21:35,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:21:35,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:21:35,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:21:35,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:21:35,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:21:35,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:21:35,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:21:35,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:21:35,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:21:35,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:21:35,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:21:35,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:21:35,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 16:21:35,299 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:21:35,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:21:35,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:21:35,299 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:21:35,300 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:21:35,300 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:21:35,300 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:21:35,300 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:21:35,300 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:21:35,300 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:21:35,300 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:21:35,300 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:21:35,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:21:35,301 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:21:35,301 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:21:35,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:21:35,301 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:21:35,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:21:35,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:21:35,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:21:35,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:21:35,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:21:35,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:21:35,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:21:35,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:21:35,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:21:35,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:21:35,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:21:35,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:21:35,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:21:35,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:21:35,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:21:35,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:21:35,304 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_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 -> ad65d1d3307a121fce5b7d95113e2f3f66b04b5a [2019-12-07 16:21:35,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:21:35,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:21:35,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:21:35,420 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:21:35,420 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:21:35,420 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-12-07 16:21:35,457 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/c740e8731/b02c52a28d674bbe81dcbf781eb80d8f/FLAG911125e56 [2019-12-07 16:21:35,917 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:21:35,917 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-12-07 16:21:35,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/c740e8731/b02c52a28d674bbe81dcbf781eb80d8f/FLAG911125e56 [2019-12-07 16:21:35,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/c740e8731/b02c52a28d674bbe81dcbf781eb80d8f [2019-12-07 16:21:35,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:21:35,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:21:35,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:21:35,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:21:35,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:21:35,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:21:35" (1/1) ... [2019-12-07 16:21:35,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec2c2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:35, skipping insertion in model container [2019-12-07 16:21:35,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:21:35" (1/1) ... [2019-12-07 16:21:35,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:21:35,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:21:36,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:21:36,190 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 16:21:36,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@32c0bd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:36, skipping insertion in model container [2019-12-07 16:21:36,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:21:36,191 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 16:21:36,192 INFO L168 Benchmark]: Toolchain (without parser) took 252.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:36,193 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:21:36,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:36,194 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 523]: 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 16:21:37,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:21:37,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:21:37,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:21:37,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:21:37,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:21:37,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:21:37,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:21:37,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:21:37,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:21:37,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:21:37,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:21:37,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:21:37,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:21:37,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:21:37,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:21:37,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:21:37,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:21:37,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:21:37,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:21:37,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:21:37,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:21:37,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:21:37,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:21:37,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:21:37,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:21:37,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:21:37,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:21:37,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:21:37,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:21:37,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:21:37,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:21:37,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:21:37,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:21:37,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:21:37,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:21:37,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:21:37,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:21:37,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:21:37,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:21:37,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:21:37,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 16:21:37,390 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:21:37,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:21:37,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:21:37,391 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:21:37,391 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:21:37,391 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:21:37,391 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:21:37,391 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:21:37,391 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:21:37,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:21:37,392 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:21:37,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:21:37,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:21:37,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:21:37,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:21:37,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:21:37,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:21:37,393 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:21:37,393 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:21:37,393 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:21:37,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:21:37,394 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:21:37,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:21:37,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:21:37,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:21:37,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:21:37,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:21:37,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:21:37,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:21:37,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:21:37,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:21:37,395 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:21:37,395 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:21:37,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:21:37,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:21:37,396 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:21:37,396 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_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 -> ad65d1d3307a121fce5b7d95113e2f3f66b04b5a [2019-12-07 16:21:37,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:21:37,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:21:37,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:21:37,580 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:21:37,580 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:21:37,581 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-12-07 16:21:37,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/0512f7c18/8627439f3d684d36850b2d74d46a74a0/FLAGc1ff4b569 [2019-12-07 16:21:38,058 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:21:38,059 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-12-07 16:21:38,068 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/0512f7c18/8627439f3d684d36850b2d74d46a74a0/FLAGc1ff4b569 [2019-12-07 16:21:38,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/data/0512f7c18/8627439f3d684d36850b2d74d46a74a0 [2019-12-07 16:21:38,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:21:38,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:21:38,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:21:38,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:21:38,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:21:38,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,084 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 04:21:38, skipping insertion in model container [2019-12-07 16:21:38,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:21:38,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:21:38,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:21:38,354 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 16:21:38,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:21:38,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:21:38,412 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:21:38,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:21:38,474 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:21:38,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38 WrapperNode [2019-12-07 16:21:38,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:21:38,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:21:38,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:21:38,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:21:38,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:21:38,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:21:38,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:21:38,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:21:38,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... [2019-12-07 16:21:38,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:21:38,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:21:38,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:21:38,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:21:38,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:38,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:21:38,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 16:21:38,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:21:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:21:39,094 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:21:39,094 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-12-07 16:21:39,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:21:39 BoogieIcfgContainer [2019-12-07 16:21:39,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:21:39,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:21:39,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:21:39,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:21:39,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:21:38" (1/3) ... [2019-12-07 16:21:39,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d93c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:21:39, skipping insertion in model container [2019-12-07 16:21:39,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:21:38" (2/3) ... [2019-12-07 16:21:39,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d93c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:21:39, skipping insertion in model container [2019-12-07 16:21:39,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:21:39" (3/3) ... [2019-12-07 16:21:39,101 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2019-12-07 16:21:39,108 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:21:39,113 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 16:21:39,121 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 16:21:39,138 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:21:39,138 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:21:39,138 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:21:39,138 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:21:39,139 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:21:39,139 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:21:39,139 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:21:39,139 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:21:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-07 16:21:39,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 16:21:39,155 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:39,156 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:21:39,156 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash 2074315904, now seen corresponding path program 1 times [2019-12-07 16:21:39,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:39,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620133798] [2019-12-07 16:21:39,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:39,306 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:21:39,309 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:39,320 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 16:21:39,320 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:39,324 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 16:21:39,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620133798] [2019-12-07 16:21:39,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:39,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:21:39,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119145637] [2019-12-07 16:21:39,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:21:39,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:39,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:21:39,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:21:39,340 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-07 16:21:39,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:39,366 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2019-12-07 16:21:39,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:21:39,368 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 16:21:39,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:39,379 INFO L225 Difference]: With dead ends: 220 [2019-12-07 16:21:39,379 INFO L226 Difference]: Without dead ends: 109 [2019-12-07 16:21:39,382 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 16:21:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-07 16:21:39,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-07 16:21:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 16:21:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2019-12-07 16:21:39,415 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2019-12-07 16:21:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:39,415 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2019-12-07 16:21:39,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:21:39,415 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2019-12-07 16:21:39,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:21:39,416 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:39,416 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 16:21:39,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:21:39,618 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:39,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1027559007, now seen corresponding path program 1 times [2019-12-07 16:21:39,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:39,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574817604] [2019-12-07 16:21:39,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:39,825 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:21:39,826 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:39,840 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 16:21:39,841 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:39,850 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 16:21:39,850 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574817604] [2019-12-07 16:21:39,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:39,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 16:21:39,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651706490] [2019-12-07 16:21:39,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:21:39,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:39,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:21:39,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:21:39,853 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 4 states. [2019-12-07 16:21:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:39,868 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2019-12-07 16:21:39,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:21:39,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 16:21:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:39,869 INFO L225 Difference]: With dead ends: 109 [2019-12-07 16:21:39,870 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 16:21:39,871 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 16:21:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 16:21:39,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 16:21:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 16:21:39,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-12-07 16:21:39,877 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-12-07 16:21:39,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:39,877 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-12-07 16:21:39,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:21:39,877 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-12-07 16:21:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 16:21:39,878 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:39,878 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 16:21:40,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:21:40,080 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:40,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:40,080 INFO L82 PathProgramCache]: Analyzing trace with hash 109011716, now seen corresponding path program 1 times [2019-12-07 16:21:40,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:40,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695119390] [2019-12-07 16:21:40,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:40,179 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:21:40,181 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:40,188 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 16:21:40,188 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:40,194 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 16:21:40,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695119390] [2019-12-07 16:21:40,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:40,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 16:21:40,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833161639] [2019-12-07 16:21:40,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:21:40,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:40,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:21:40,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:21:40,196 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2019-12-07 16:21:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:40,247 INFO L93 Difference]: Finished difference Result 152 states and 226 transitions. [2019-12-07 16:21:40,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:21:40,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 16:21:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:40,249 INFO L225 Difference]: With dead ends: 152 [2019-12-07 16:21:40,249 INFO L226 Difference]: Without dead ends: 111 [2019-12-07 16:21:40,250 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 16:21:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-12-07 16:21:40,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 66. [2019-12-07 16:21:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 16:21:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2019-12-07 16:21:40,262 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 22 [2019-12-07 16:21:40,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:40,262 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2019-12-07 16:21:40,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:21:40,262 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2019-12-07 16:21:40,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 16:21:40,263 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:40,263 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 16:21:40,464 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:21:40,464 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:40,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash 60563277, now seen corresponding path program 1 times [2019-12-07 16:21:40,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:40,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312269068] [2019-12-07 16:21:40,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:40,649 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:21:40,650 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:40,656 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 16:21:40,657 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:40,659 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 16:21:40,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312269068] [2019-12-07 16:21:40,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:40,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 16:21:40,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211346321] [2019-12-07 16:21:40,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:21:40,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:40,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:21:40,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:21:40,661 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2019-12-07 16:21:40,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:40,721 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2019-12-07 16:21:40,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:21:40,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 16:21:40,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:40,722 INFO L225 Difference]: With dead ends: 147 [2019-12-07 16:21:40,722 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 16:21:40,723 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 16:21:40,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 16:21:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2019-12-07 16:21:40,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 16:21:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions. [2019-12-07 16:21:40,732 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 24 [2019-12-07 16:21:40,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:40,732 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 121 transitions. [2019-12-07 16:21:40,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:21:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions. [2019-12-07 16:21:40,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 16:21:40,733 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:40,733 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:21:40,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:21:40,935 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:40,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:40,936 INFO L82 PathProgramCache]: Analyzing trace with hash -445763815, now seen corresponding path program 1 times [2019-12-07 16:21:40,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:40,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079519267] [2019-12-07 16:21:40,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:41,070 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:21:41,071 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:41,083 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 16:21:41,083 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:41,089 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 16:21:41,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079519267] [2019-12-07 16:21:41,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:41,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 16:21:41,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863883822] [2019-12-07 16:21:41,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:21:41,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:41,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:21:41,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:21:41,090 INFO L87 Difference]: Start difference. First operand 85 states and 121 transitions. Second operand 5 states. [2019-12-07 16:21:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:41,166 INFO L93 Difference]: Finished difference Result 413 states and 601 transitions. [2019-12-07 16:21:41,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 16:21:41,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 16:21:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:41,168 INFO L225 Difference]: With dead ends: 413 [2019-12-07 16:21:41,168 INFO L226 Difference]: Without dead ends: 334 [2019-12-07 16:21:41,169 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:21:41,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-07 16:21:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 156. [2019-12-07 16:21:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 16:21:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 220 transitions. [2019-12-07 16:21:41,185 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 220 transitions. Word has length 25 [2019-12-07 16:21:41,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:41,185 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 220 transitions. [2019-12-07 16:21:41,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:21:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 220 transitions. [2019-12-07 16:21:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 16:21:41,186 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:41,186 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:21:41,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 16:21:41,388 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:41,389 INFO L82 PathProgramCache]: Analyzing trace with hash -649570909, now seen corresponding path program 1 times [2019-12-07 16:21:41,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:41,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275300949] [2019-12-07 16:21:41,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:41,552 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:21:41,553 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:41,566 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 16:21:41,566 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:41,568 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 16:21:41,569 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275300949] [2019-12-07 16:21:41,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:41,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 16:21:41,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896668576] [2019-12-07 16:21:41,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:21:41,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:41,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:21:41,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:21:41,570 INFO L87 Difference]: Start difference. First operand 156 states and 220 transitions. Second operand 5 states. [2019-12-07 16:21:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:41,726 INFO L93 Difference]: Finished difference Result 436 states and 619 transitions. [2019-12-07 16:21:41,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 16:21:41,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 16:21:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:41,730 INFO L225 Difference]: With dead ends: 436 [2019-12-07 16:21:41,730 INFO L226 Difference]: Without dead ends: 434 [2019-12-07 16:21:41,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:21:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-12-07 16:21:41,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 156. [2019-12-07 16:21:41,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 16:21:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2019-12-07 16:21:41,747 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 26 [2019-12-07 16:21:41,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:41,748 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2019-12-07 16:21:41,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:21:41,748 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2019-12-07 16:21:41,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 16:21:41,749 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:41,749 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, 1] [2019-12-07 16:21:41,949 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 16:21:41,950 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:41,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:41,950 INFO L82 PathProgramCache]: Analyzing trace with hash 108971892, now seen corresponding path program 1 times [2019-12-07 16:21:41,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:41,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749825498] [2019-12-07 16:21:41,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:42,110 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:21:42,112 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:42,122 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 16:21:42,122 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:42,125 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 16:21:42,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749825498] [2019-12-07 16:21:42,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:42,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 16:21:42,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954732963] [2019-12-07 16:21:42,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:21:42,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:42,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:21:42,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:21:42,126 INFO L87 Difference]: Start difference. First operand 156 states and 218 transitions. Second operand 5 states. [2019-12-07 16:21:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:42,186 INFO L93 Difference]: Finished difference Result 468 states and 648 transitions. [2019-12-07 16:21:42,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:21:42,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 16:21:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:42,189 INFO L225 Difference]: With dead ends: 468 [2019-12-07 16:21:42,189 INFO L226 Difference]: Without dead ends: 318 [2019-12-07 16:21:42,190 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 16:21:42,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-12-07 16:21:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 168. [2019-12-07 16:21:42,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-12-07 16:21:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 230 transitions. [2019-12-07 16:21:42,209 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 230 transitions. Word has length 31 [2019-12-07 16:21:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:42,209 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 230 transitions. [2019-12-07 16:21:42,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:21:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 230 transitions. [2019-12-07 16:21:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 16:21:42,210 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:42,210 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, 1] [2019-12-07 16:21:42,411 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 16:21:42,412 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:42,413 INFO L82 PathProgramCache]: Analyzing trace with hash -284055118, now seen corresponding path program 1 times [2019-12-07 16:21:42,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:42,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8794055] [2019-12-07 16:21:42,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:42,532 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:21:42,533 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:42,540 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 16:21:42,540 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:42,549 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 16:21:42,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8794055] [2019-12-07 16:21:42,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:42,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 16:21:42,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191451252] [2019-12-07 16:21:42,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:21:42,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:42,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:21:42,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:21:42,551 INFO L87 Difference]: Start difference. First operand 168 states and 230 transitions. Second operand 6 states. [2019-12-07 16:21:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:42,602 INFO L93 Difference]: Finished difference Result 502 states and 682 transitions. [2019-12-07 16:21:42,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:21:42,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 16:21:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:42,604 INFO L225 Difference]: With dead ends: 502 [2019-12-07 16:21:42,604 INFO L226 Difference]: Without dead ends: 340 [2019-12-07 16:21:42,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 16:21:42,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-12-07 16:21:42,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 176. [2019-12-07 16:21:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-12-07 16:21:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2019-12-07 16:21:42,616 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 31 [2019-12-07 16:21:42,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:42,616 INFO L462 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2019-12-07 16:21:42,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:21:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2019-12-07 16:21:42,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 16:21:42,616 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:42,617 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, 1] [2019-12-07 16:21:42,817 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 16:21:42,817 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:42,818 INFO L82 PathProgramCache]: Analyzing trace with hash -25889680, now seen corresponding path program 1 times [2019-12-07 16:21:42,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:42,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587001725] [2019-12-07 16:21:42,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/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 16:21:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:21:42,915 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:21:42,917 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:21:42,923 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 16:21:42,923 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:21:42,930 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 16:21:42,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587001725] [2019-12-07 16:21:42,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:21:42,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 16:21:42,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973159339] [2019-12-07 16:21:42,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:21:42,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:21:42,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:21:42,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:21:42,932 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand 4 states. [2019-12-07 16:21:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:21:42,989 INFO L93 Difference]: Finished difference Result 576 states and 782 transitions. [2019-12-07 16:21:42,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:21:42,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-07 16:21:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:21:42,992 INFO L225 Difference]: With dead ends: 576 [2019-12-07 16:21:42,993 INFO L226 Difference]: Without dead ends: 406 [2019-12-07 16:21:42,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 16:21:42,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-12-07 16:21:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 316. [2019-12-07 16:21:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2019-12-07 16:21:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 423 transitions. [2019-12-07 16:21:43,021 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 423 transitions. Word has length 31 [2019-12-07 16:21:43,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:21:43,021 INFO L462 AbstractCegarLoop]: Abstraction has 316 states and 423 transitions. [2019-12-07 16:21:43,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:21:43,021 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 423 transitions. [2019-12-07 16:21:43,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 16:21:43,022 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:21:43,022 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, 1, 1] [2019-12-07 16:21:43,222 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 16:21:43,223 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:21:43,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:21:43,223 INFO L82 PathProgramCache]: Analyzing trace with hash -2138649550, now seen corresponding path program 1 times [2019-12-07 16:21:43,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:21:43,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809297619] [2019-12-07 16:21:43,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 16:21:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:21:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:21:44,789 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 16:21:44,789 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:21:44,989 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 16:21:45,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:21:45 BoogieIcfgContainer [2019-12-07 16:21:45,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:21:45,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:21:45,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:21:45,064 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:21:45,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:21:39" (3/4) ... [2019-12-07 16:21:45,066 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:21:45,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_89926725-4c3f-47df-8a60-c39b2a89e6f7/bin/utaipan/witness.graphml [2019-12-07 16:21:45,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:21:45,125 INFO L168 Benchmark]: Toolchain (without parser) took 7045.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 953.7 MB in the beginning and 935.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 234.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:45,125 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 16:21:45,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:45,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:45,126 INFO L168 Benchmark]: Boogie Preprocessor took 31.74 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 16:21:45,126 INFO L168 Benchmark]: RCFGBuilder took 542.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:45,126 INFO L168 Benchmark]: TraceAbstraction took 5967.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.0 GB in the beginning and 949.7 MB in the end (delta: 86.3 MB). Peak memory consumption was 154.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:45,126 INFO L168 Benchmark]: Witness Printer took 59.38 ms. Allocated memory is still 1.2 GB. Free memory was 949.7 MB in the beginning and 935.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:45,128 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 394.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.74 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 542.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5967.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.0 GB in the beginning and 949.7 MB in the end (delta: 86.3 MB). Peak memory consumption was 154.5 MB. Max. memory is 11.5 GB. * Witness Printer took 59.38 ms. Allocated memory is still 1.2 GB. Free memory was 949.7 MB in the beginning and 935.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 490]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L428] int retValue_acc ; [L429] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L274] tmp = __VERIFIER_nondet_int() [L276] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE waterLevel < 2 [L881] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(\read(methaneLevelCritical)) [L895] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___2) [L248] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L59] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L66] COND TRUE \read(systemActive) [L114] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L91] COND TRUE ! pumpRunning [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; [L942] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L945] COND FALSE !(waterLevel < 2) [L949] retValue_acc = 0 [L950] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isHighWaterSensorDry() [L219] COND FALSE !(\read(tmp)) [L222] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] retValue_acc = tmp___0 [L225] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp = isHighWaterLevel() [L95] COND TRUE \read(tmp) [L142] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L327] int tmp ; [L328] int tmp___0 ; [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L332] tmp = isMethaneLevelCritical() [L334] COND TRUE \read(tmp) [L166] int retValue_acc ; [L169] retValue_acc = pumpRunning [L170] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L336] tmp___0 = isPumpRunning() [L338] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L490] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 844 SDtfs, 1145 SDslu, 1392 SDs, 0 SdLazy, 177 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 907 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 18358 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1689 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...