./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.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_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 ...................................................................................................................................... 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_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:59:21,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:59:21,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:59:21,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:59:21,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:59:21,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:59:21,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:59:21,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:59:21,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:59:21,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:59:21,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:59:21,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:59:21,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:59:21,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:59:21,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:59:21,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:59:21,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:59:21,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:59:21,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:59:21,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:59:21,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:59:21,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:59:21,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:59:21,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:59:21,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:59:21,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:59:21,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:59:21,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:59:21,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:59:21,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:59:21,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:59:21,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:59:21,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:59:21,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:59:21,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:59:21,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:59:21,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:59:21,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:59:21,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:59:21,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:59:21,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:59:21,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:59:21,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:59:21,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:59:21,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:59:21,337 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:59:21,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:59:21,337 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:59:21,337 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:59:21,337 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:59:21,338 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:59:21,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:59:21,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:59:21,338 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:59:21,338 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:59:21,338 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:59:21,339 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:59:21,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:59:21,339 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:59:21,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:59:21,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:59:21,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:59:21,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:59:21,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:59:21,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:59:21,341 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:59:21,341 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:59:21,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:59:21,341 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:59:21,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:59:21,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:59:21,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:59:21,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:59:21,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:59:21,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:59:21,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:59:21,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:59:21,343 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:59:21,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:59:21,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:59:21,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:59:21,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:59:21,343 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_646a8838-0994-403a-8221-3ec240e4a7ba/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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2019-12-07 21:59:21,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:59:21,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:59:21,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:59:21,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:59:21,454 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:59:21,454 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-12-07 21:59:21,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/c66ede6c4/70a78768416848f8b4247a2cbf6d5d65/FLAG9feaa371e [2019-12-07 21:59:21,882 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:59:21,882 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-12-07 21:59:21,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/c66ede6c4/70a78768416848f8b4247a2cbf6d5d65/FLAG9feaa371e [2019-12-07 21:59:22,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/c66ede6c4/70a78768416848f8b4247a2cbf6d5d65 [2019-12-07 21:59:22,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:59:22,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:59:22,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:59:22,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:59:22,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:59:22,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:59:22" (1/1) ... [2019-12-07 21:59:22,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea5806a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:22, skipping insertion in model container [2019-12-07 21:59:22,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:59:22" (1/1) ... [2019-12-07 21:59:22,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:59:22,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:59:22,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:59:22,562 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 21:59:22,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3508db69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:22, skipping insertion in model container [2019-12-07 21:59:22,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:59:22,563 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 21:59:22,565 INFO L168 Benchmark]: Toolchain (without parser) took 263.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:22,565 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:59:22,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:22,567 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 68]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 21:59:23,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:59:23,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:59:23,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:59:23,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:59:23,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:59:23,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:59:23,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:59:23,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:59:23,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:59:23,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:59:23,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:59:23,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:59:23,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:59:23,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:59:23,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:59:23,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:59:23,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:59:23,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:59:23,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:59:23,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:59:23,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:59:23,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:59:23,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:59:23,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:59:23,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:59:23,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:59:23,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:59:23,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:59:23,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:59:23,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:59:23,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:59:23,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:59:23,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:59:23,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:59:23,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:59:23,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:59:23,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:59:23,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:59:23,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:59:23,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:59:23,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:59:23,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:59:23,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:59:23,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:59:23,747 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:59:23,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:59:23,747 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:59:23,747 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:59:23,747 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:59:23,748 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:59:23,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:59:23,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:59:23,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:59:23,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:59:23,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:59:23,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:59:23,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:59:23,749 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:59:23,749 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:59:23,749 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:59:23,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:59:23,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:59:23,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:59:23,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:59:23,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:59:23,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:59:23,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:59:23,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:59:23,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:59:23,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:59:23,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:59:23,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:59:23,751 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:59:23,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:59:23,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:59:23,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:59:23,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:59:23,752 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_646a8838-0994-403a-8221-3ec240e4a7ba/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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2019-12-07 21:59:23,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:59:23,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:59:23,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:59:23,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:59:23,941 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:59:23,942 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-12-07 21:59:23,990 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/ea2a5a471/6b933d687b484790a35248fb7dbc3fc5/FLAG5fe020aa1 [2019-12-07 21:59:24,351 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:59:24,351 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-12-07 21:59:24,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/ea2a5a471/6b933d687b484790a35248fb7dbc3fc5/FLAG5fe020aa1 [2019-12-07 21:59:24,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/data/ea2a5a471/6b933d687b484790a35248fb7dbc3fc5 [2019-12-07 21:59:24,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:59:24,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:59:24,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:59:24,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:59:24,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:59:24,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,375 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 09:59:24, skipping insertion in model container [2019-12-07 21:59:24,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:59:24,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:59:24,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:59:24,629 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 21:59:24,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:59:24,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:59:24,677 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:59:24,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:59:24,739 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:59:24,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24 WrapperNode [2019-12-07 21:59:24,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:59:24,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:59:24,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:59:24,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:59:24,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:59:24,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:59:24,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:59:24,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:59:24,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... [2019-12-07 21:59:24,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:59:24,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:59:24,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:59:24,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:59:24,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:59:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 21:59:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:59:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:59:25,546 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:59:25,546 INFO L287 CfgBuilder]: Removed 282 assume(true) statements. [2019-12-07 21:59:25,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:59:25 BoogieIcfgContainer [2019-12-07 21:59:25,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:59:25,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:59:25,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:59:25,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:59:25,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:59:24" (1/3) ... [2019-12-07 21:59:25,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684b5125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:59:25, skipping insertion in model container [2019-12-07 21:59:25,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:59:24" (2/3) ... [2019-12-07 21:59:25,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684b5125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:59:25, skipping insertion in model container [2019-12-07 21:59:25,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:59:25" (3/3) ... [2019-12-07 21:59:25,553 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2019-12-07 21:59:25,560 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:59:25,565 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 21:59:25,573 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 21:59:25,589 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:59:25,590 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:59:25,590 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:59:25,590 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:59:25,590 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:59:25,590 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:59:25,590 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:59:25,590 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:59:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2019-12-07 21:59:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 21:59:25,608 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:25,609 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:59:25,609 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:25,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:25,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1937289636, now seen corresponding path program 1 times [2019-12-07 21:59:25,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:25,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996840363] [2019-12-07 21:59:25,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:25,746 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:59:25,749 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:25,759 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 21:59:25,759 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:25,762 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 21:59:25,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996840363] [2019-12-07 21:59:25,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:25,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:59:25,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625071736] [2019-12-07 21:59:25,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:59:25,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:25,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:59:25,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:59:25,778 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 2 states. [2019-12-07 21:59:25,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:25,806 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2019-12-07 21:59:25,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:59:25,807 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 21:59:25,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:25,816 INFO L225 Difference]: With dead ends: 376 [2019-12-07 21:59:25,816 INFO L226 Difference]: Without dead ends: 187 [2019-12-07 21:59:25,819 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 21:59:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-12-07 21:59:25,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2019-12-07 21:59:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-12-07 21:59:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2019-12-07 21:59:25,853 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2019-12-07 21:59:25,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:25,854 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2019-12-07 21:59:25,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:59:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2019-12-07 21:59:25,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 21:59:25,855 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:25,855 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 21:59:26,055 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:59:26,056 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:26,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash 890532739, now seen corresponding path program 1 times [2019-12-07 21:59:26,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:26,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022356033] [2019-12-07 21:59:26,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:26,264 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:59:26,266 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:26,279 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 21:59:26,279 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:26,287 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 21:59:26,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022356033] [2019-12-07 21:59:26,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:26,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:59:26,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912698033] [2019-12-07 21:59:26,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:59:26,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:26,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:59:26,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:59:26,290 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 4 states. [2019-12-07 21:59:26,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:26,304 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2019-12-07 21:59:26,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:59:26,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 21:59:26,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:26,305 INFO L225 Difference]: With dead ends: 187 [2019-12-07 21:59:26,306 INFO L226 Difference]: Without dead ends: 73 [2019-12-07 21:59:26,307 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 21:59:26,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-12-07 21:59:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-12-07 21:59:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-12-07 21:59:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2019-12-07 21:59:26,312 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2019-12-07 21:59:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:26,313 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2019-12-07 21:59:26,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:59:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2019-12-07 21:59:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 21:59:26,314 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:26,314 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 21:59:26,514 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:59:26,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:26,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1577730230, now seen corresponding path program 1 times [2019-12-07 21:59:26,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:26,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973098937] [2019-12-07 21:59:26,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:26,704 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:59:26,705 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:26,712 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 21:59:26,712 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:26,718 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 21:59:26,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973098937] [2019-12-07 21:59:26,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:26,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:59:26,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480913674] [2019-12-07 21:59:26,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:59:26,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:26,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:59:26,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:59:26,720 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 4 states. [2019-12-07 21:59:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:26,766 INFO L93 Difference]: Finished difference Result 230 states and 346 transitions. [2019-12-07 21:59:26,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:59:26,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 21:59:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:26,768 INFO L225 Difference]: With dead ends: 230 [2019-12-07 21:59:26,768 INFO L226 Difference]: Without dead ends: 163 [2019-12-07 21:59:26,768 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 21:59:26,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-12-07 21:59:26,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 92. [2019-12-07 21:59:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-07 21:59:26,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2019-12-07 21:59:26,778 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 22 [2019-12-07 21:59:26,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:26,778 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2019-12-07 21:59:26,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:59:26,778 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2019-12-07 21:59:26,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 21:59:26,779 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:26,780 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 21:59:26,980 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:59:26,981 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:26,982 INFO L82 PathProgramCache]: Analyzing trace with hash 792163456, now seen corresponding path program 1 times [2019-12-07 21:59:26,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:26,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260368804] [2019-12-07 21:59:26,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:27,182 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:59:27,184 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:27,188 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 21:59:27,188 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:27,190 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 21:59:27,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260368804] [2019-12-07 21:59:27,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:27,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 21:59:27,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072436729] [2019-12-07 21:59:27,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:59:27,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:27,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:59:27,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:59:27,191 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2019-12-07 21:59:27,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:27,264 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2019-12-07 21:59:27,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:59:27,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 21:59:27,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:27,265 INFO L225 Difference]: With dead ends: 187 [2019-12-07 21:59:27,265 INFO L226 Difference]: Without dead ends: 101 [2019-12-07 21:59:27,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 21:59:27,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-07 21:59:27,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2019-12-07 21:59:27,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-12-07 21:59:27,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2019-12-07 21:59:27,275 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 25 [2019-12-07 21:59:27,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:27,275 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2019-12-07 21:59:27,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:59:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2019-12-07 21:59:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 21:59:27,276 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:27,276 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 21:59:27,476 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 21:59:27,477 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:27,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1022954699, now seen corresponding path program 1 times [2019-12-07 21:59:27,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:27,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516084103] [2019-12-07 21:59:27,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:27,572 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:59:27,573 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:27,586 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 21:59:27,586 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:27,593 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 21:59:27,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516084103] [2019-12-07 21:59:27,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:27,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 21:59:27,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40866793] [2019-12-07 21:59:27,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:59:27,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:27,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:59:27,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:59:27,595 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2019-12-07 21:59:27,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:27,675 INFO L93 Difference]: Finished difference Result 485 states and 703 transitions. [2019-12-07 21:59:27,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 21:59:27,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 21:59:27,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:27,678 INFO L225 Difference]: With dead ends: 485 [2019-12-07 21:59:27,678 INFO L226 Difference]: Without dead ends: 392 [2019-12-07 21:59:27,679 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 21:59:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-12-07 21:59:27,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 184. [2019-12-07 21:59:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-12-07 21:59:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 260 transitions. [2019-12-07 21:59:27,696 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 260 transitions. Word has length 25 [2019-12-07 21:59:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:27,696 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 260 transitions. [2019-12-07 21:59:27,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:59:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 260 transitions. [2019-12-07 21:59:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 21:59:27,697 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:27,697 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 21:59:27,897 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 21:59:27,899 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:27,900 INFO L82 PathProgramCache]: Analyzing trace with hash 819147605, now seen corresponding path program 1 times [2019-12-07 21:59:27,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:27,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863042571] [2019-12-07 21:59:27,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:28,119 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:59:28,121 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:28,132 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 21:59:28,133 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:28,135 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 21:59:28,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863042571] [2019-12-07 21:59:28,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:28,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 21:59:28,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099942614] [2019-12-07 21:59:28,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:59:28,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:28,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:59:28,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:59:28,137 INFO L87 Difference]: Start difference. First operand 184 states and 260 transitions. Second operand 5 states. [2019-12-07 21:59:28,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:28,281 INFO L93 Difference]: Finished difference Result 522 states and 741 transitions. [2019-12-07 21:59:28,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 21:59:28,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 21:59:28,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:28,284 INFO L225 Difference]: With dead ends: 522 [2019-12-07 21:59:28,284 INFO L226 Difference]: Without dead ends: 520 [2019-12-07 21:59:28,284 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 21:59:28,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2019-12-07 21:59:28,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 184. [2019-12-07 21:59:28,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-12-07 21:59:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions. [2019-12-07 21:59:28,297 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 26 [2019-12-07 21:59:28,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:28,297 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 258 transitions. [2019-12-07 21:59:28,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:59:28,297 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions. [2019-12-07 21:59:28,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 21:59:28,298 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:28,298 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 21:59:28,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 21:59:28,499 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:28,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1010263109, now seen corresponding path program 1 times [2019-12-07 21:59:28,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:28,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355490948] [2019-12-07 21:59:28,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:28,690 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:59:28,691 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:28,702 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 21:59:28,702 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:28,704 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 21:59:28,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355490948] [2019-12-07 21:59:28,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:28,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 21:59:28,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758686169] [2019-12-07 21:59:28,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:59:28,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:28,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:59:28,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:59:28,705 INFO L87 Difference]: Start difference. First operand 184 states and 258 transitions. Second operand 5 states. [2019-12-07 21:59:28,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:28,778 INFO L93 Difference]: Finished difference Result 534 states and 740 transitions. [2019-12-07 21:59:28,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 21:59:28,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 21:59:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:28,780 INFO L225 Difference]: With dead ends: 534 [2019-12-07 21:59:28,780 INFO L226 Difference]: Without dead ends: 356 [2019-12-07 21:59:28,781 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 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 21:59:28,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-12-07 21:59:28,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 202. [2019-12-07 21:59:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-12-07 21:59:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 276 transitions. [2019-12-07 21:59:28,799 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 276 transitions. Word has length 32 [2019-12-07 21:59:28,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:28,800 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 276 transitions. [2019-12-07 21:59:28,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:59:28,800 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 276 transitions. [2019-12-07 21:59:28,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 21:59:28,801 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:28,801 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 21:59:29,001 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 21:59:29,003 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:29,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1403290119, now seen corresponding path program 1 times [2019-12-07 21:59:29,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:29,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553358955] [2019-12-07 21:59:29,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:29,159 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 21:59:29,160 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:29,168 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 21:59:29,168 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:29,180 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 21:59:29,180 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553358955] [2019-12-07 21:59:29,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:29,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 21:59:29,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569424218] [2019-12-07 21:59:29,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 21:59:29,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:29,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 21:59:29,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 21:59:29,181 INFO L87 Difference]: Start difference. First operand 202 states and 276 transitions. Second operand 6 states. [2019-12-07 21:59:29,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:29,248 INFO L93 Difference]: Finished difference Result 584 states and 790 transitions. [2019-12-07 21:59:29,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 21:59:29,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 21:59:29,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:29,251 INFO L225 Difference]: With dead ends: 584 [2019-12-07 21:59:29,251 INFO L226 Difference]: Without dead ends: 388 [2019-12-07 21:59:29,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 21:59:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2019-12-07 21:59:29,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 214. [2019-12-07 21:59:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-12-07 21:59:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 288 transitions. [2019-12-07 21:59:29,275 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 288 transitions. Word has length 32 [2019-12-07 21:59:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:29,275 INFO L462 AbstractCegarLoop]: Abstraction has 214 states and 288 transitions. [2019-12-07 21:59:29,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 21:59:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2019-12-07 21:59:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 21:59:29,277 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:29,277 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 21:59:29,477 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 21:59:29,479 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:29,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:29,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1145124681, now seen corresponding path program 1 times [2019-12-07 21:59:29,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:29,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153708039] [2019-12-07 21:59:29,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:59:29,634 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:59:29,635 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:59:29,641 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 21:59:29,641 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:59:29,648 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 21:59:29,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153708039] [2019-12-07 21:59:29,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:59:29,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 21:59:29,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325690384] [2019-12-07 21:59:29,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:59:29,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:59:29,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:59:29,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:59:29,649 INFO L87 Difference]: Start difference. First operand 214 states and 288 transitions. Second operand 4 states. [2019-12-07 21:59:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:59:29,722 INFO L93 Difference]: Finished difference Result 678 states and 916 transitions. [2019-12-07 21:59:29,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:59:29,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-07 21:59:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:59:29,725 INFO L225 Difference]: With dead ends: 678 [2019-12-07 21:59:29,725 INFO L226 Difference]: Without dead ends: 470 [2019-12-07 21:59:29,726 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 21:59:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-12-07 21:59:29,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 378. [2019-12-07 21:59:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-12-07 21:59:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 503 transitions. [2019-12-07 21:59:29,758 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 503 transitions. Word has length 32 [2019-12-07 21:59:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:59:29,759 INFO L462 AbstractCegarLoop]: Abstraction has 378 states and 503 transitions. [2019-12-07 21:59:29,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:59:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 503 transitions. [2019-12-07 21:59:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 21:59:29,760 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:59:29,760 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, 1] [2019-12-07 21:59:29,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 21:59:29,961 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:59:29,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:59:29,961 INFO L82 PathProgramCache]: Analyzing trace with hash 2078796085, now seen corresponding path program 1 times [2019-12-07 21:59:29,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:59:29,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302084713] [2019-12-07 21:59:29,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/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 21:59:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:59:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:59:31,741 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:59:31,742 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:59:31,942 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 21:59:32,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:59:32 BoogieIcfgContainer [2019-12-07 21:59:32,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:59:32,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:59:32,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:59:32,034 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:59:32,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:59:25" (3/4) ... [2019-12-07 21:59:32,035 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:59:32,092 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_646a8838-0994-403a-8221-3ec240e4a7ba/bin/utaipan/witness.graphml [2019-12-07 21:59:32,092 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:59:32,094 INFO L168 Benchmark]: Toolchain (without parser) took 7723.07 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.4 MB). Free memory was 947.0 MB in the beginning and 887.6 MB in the end (delta: 59.4 MB). Peak memory consumption was 283.8 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:32,094 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 21:59:32,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:32,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.56 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:32,094 INFO L168 Benchmark]: Boogie Preprocessor took 42.03 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:32,095 INFO L168 Benchmark]: RCFGBuilder took 714.85 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: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:32,095 INFO L168 Benchmark]: TraceAbstraction took 6485.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 902.9 MB in the end (delta: 102.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:32,095 INFO L168 Benchmark]: Witness Printer took 58.64 ms. Allocated memory is still 1.3 GB. Free memory was 902.9 MB in the beginning and 887.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-12-07 21:59:32,097 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 368.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.56 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.03 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 714.85 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: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6485.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 902.9 MB in the end (delta: 102.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 11.5 GB. * Witness Printer took 58.64 ms. Allocated memory is still 1.3 GB. Free memory was 902.9 MB in the beginning and 887.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L884] int retValue_acc ; [L885] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] COND TRUE waterLevel < 2 [L927] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L732] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L505] COND TRUE \read(systemActive) [L579] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) [L553] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(pumpRunning)) [L527] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] COND TRUE ! pumpRunning [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; [L988] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) [L607] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L777] int tmp ; [L778] int tmp___0 ; [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L806] __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, 191 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1206 SDtfs, 1649 SDslu, 1725 SDs, 0 SdLazy, 230 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred 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, 1037 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 19250 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1693 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...