./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.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_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 45e9be5ff3d2c5f3e04037cd81f89ba3fcf7e541 ....................................................................................................................................... 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_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 45e9be5ff3d2c5f3e04037cd81f89ba3fcf7e541 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:53:32,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:53:32,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:53:32,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:53:32,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:53:32,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:53:32,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:53:32,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:53:32,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:53:32,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:53:32,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:53:32,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:53:32,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:53:32,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:53:32,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:53:32,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:53:32,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:53:32,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:53:32,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:53:32,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:53:32,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:53:32,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:53:32,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:53:32,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:53:32,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:53:32,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:53:32,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:53:32,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:53:32,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:53:32,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:53:32,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:53:32,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:53:32,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:53:32,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:53:32,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:53:32,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:53:32,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:53:32,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:53:32,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:53:32,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:53:32,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:53:32,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:53:32,847 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:53:32,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:53:32,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:53:32,848 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:53:32,848 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:53:32,848 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:53:32,848 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:53:32,848 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:53:32,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:53:32,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:53:32,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:53:32,849 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:53:32,849 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:53:32,849 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:53:32,849 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:53:32,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:53:32,850 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:53:32,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:53:32,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:53:32,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:53:32,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:53:32,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:53:32,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:53:32,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:53:32,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:53:32,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:53:32,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:53:32,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:53:32,852 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:53:32,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:53:32,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:53:32,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:53:32,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:53:32,852 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_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 -> 45e9be5ff3d2c5f3e04037cd81f89ba3fcf7e541 [2019-12-07 14:53:32,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:53:32,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:53:32,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:53:32,960 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:53:32,961 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:53:32,961 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2019-12-07 14:53:33,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/07463c7a0/9d88c053a82f4180b149280aac1a5c4d/FLAG9ef505ffa [2019-12-07 14:53:33,416 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:53:33,417 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2019-12-07 14:53:33,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/07463c7a0/9d88c053a82f4180b149280aac1a5c4d/FLAG9ef505ffa [2019-12-07 14:53:33,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/07463c7a0/9d88c053a82f4180b149280aac1a5c4d [2019-12-07 14:53:33,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:53:33,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:53:33,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:33,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:53:33,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:53:33,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:33" (1/1) ... [2019-12-07 14:53:33,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7dba82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:33, skipping insertion in model container [2019-12-07 14:53:33,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:33" (1/1) ... [2019-12-07 14:53:33,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:53:33,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:53:34,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:34,045 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 14:53:34,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e16d24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:34, skipping insertion in model container [2019-12-07 14:53:34,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:34,046 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 14:53:34,048 INFO L168 Benchmark]: Toolchain (without parser) took 256.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:34,048 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:53:34,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:34,050 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 172]: 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 14:53:35,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:53:35,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:53:35,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:53:35,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:53:35,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:53:35,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:53:35,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:53:35,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:53:35,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:53:35,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:53:35,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:53:35,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:53:35,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:53:35,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:53:35,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:53:35,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:53:35,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:53:35,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:53:35,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:53:35,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:53:35,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:53:35,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:53:35,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:53:35,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:53:35,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:53:35,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:53:35,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:53:35,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:53:35,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:53:35,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:53:35,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:53:35,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:53:35,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:53:35,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:53:35,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:53:35,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:53:35,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:53:35,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:53:35,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:53:35,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:53:35,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:53:35,295 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:53:35,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:53:35,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:53:35,296 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:53:35,296 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:53:35,296 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:53:35,296 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:53:35,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:53:35,297 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:53:35,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:53:35,297 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:53:35,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:53:35,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:53:35,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:53:35,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:53:35,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:53:35,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:53:35,298 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:53:35,298 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:53:35,299 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:53:35,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:53:35,299 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:53:35,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:53:35,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:53:35,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:53:35,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:53:35,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:53:35,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:53:35,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:53:35,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:53:35,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:53:35,300 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:53:35,300 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:53:35,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:53:35,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:53:35,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:53:35,301 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_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 -> 45e9be5ff3d2c5f3e04037cd81f89ba3fcf7e541 [2019-12-07 14:53:35,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:53:35,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:53:35,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:53:35,491 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:53:35,491 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:53:35,492 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2019-12-07 14:53:35,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/20090dbc0/956dc449eb01452ab463e0f26c6ab0f6/FLAGd44b00ddf [2019-12-07 14:53:35,938 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:53:35,938 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2019-12-07 14:53:35,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/20090dbc0/956dc449eb01452ab463e0f26c6ab0f6/FLAGd44b00ddf [2019-12-07 14:53:36,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/data/20090dbc0/956dc449eb01452ab463e0f26c6ab0f6 [2019-12-07 14:53:36,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:53:36,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:53:36,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:36,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:53:36,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:53:36,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf9ed9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36, skipping insertion in model container [2019-12-07 14:53:36,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:53:36,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:53:36,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:36,611 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 14:53:36,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:53:36,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:36,657 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:53:36,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:36,714 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:53:36,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36 WrapperNode [2019-12-07 14:53:36,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:36,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:53:36,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:53:36,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:53:36,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:53:36,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:53:36,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:53:36,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:53:36,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... [2019-12-07 14:53:36,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:53:36,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:53:36,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:53:36,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:53:36,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:53:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 14:53:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:53:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:53:37,255 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:53:37,255 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-12-07 14:53:37,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:53:37 BoogieIcfgContainer [2019-12-07 14:53:37,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:53:37,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:53:37,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:53:37,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:53:37,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:53:36" (1/3) ... [2019-12-07 14:53:37,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd63497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:53:37, skipping insertion in model container [2019-12-07 14:53:37,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:36" (2/3) ... [2019-12-07 14:53:37,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd63497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:53:37, skipping insertion in model container [2019-12-07 14:53:37,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:53:37" (3/3) ... [2019-12-07 14:53:37,263 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2019-12-07 14:53:37,272 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:53:37,279 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 14:53:37,290 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 14:53:37,311 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:53:37,311 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:53:37,311 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:53:37,312 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:53:37,312 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:53:37,312 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:53:37,312 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:53:37,312 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:53:37,327 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-12-07 14:53:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 14:53:37,332 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:37,332 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:37,332 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1424204181, now seen corresponding path program 1 times [2019-12-07 14:53:37,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:37,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273584383] [2019-12-07 14:53:37,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:37,491 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:53:37,495 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:37,506 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 14:53:37,507 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:37,510 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 14:53:37,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273584383] [2019-12-07 14:53:37,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:37,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:53:37,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100301574] [2019-12-07 14:53:37,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:53:37,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:37,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:53:37,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:53:37,528 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2019-12-07 14:53:37,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:37,549 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2019-12-07 14:53:37,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:53:37,550 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 14:53:37,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:37,559 INFO L225 Difference]: With dead ends: 150 [2019-12-07 14:53:37,559 INFO L226 Difference]: Without dead ends: 74 [2019-12-07 14:53:37,562 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 14:53:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-12-07 14:53:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-12-07 14:53:37,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 14:53:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-12-07 14:53:37,593 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2019-12-07 14:53:37,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:37,594 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 14:53:37,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:53:37,594 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-12-07 14:53:37,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 14:53:37,595 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:37,595 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 14:53:37,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:53:37,796 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:37,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:37,796 INFO L82 PathProgramCache]: Analyzing trace with hash -631654862, now seen corresponding path program 1 times [2019-12-07 14:53:37,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:37,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597912257] [2019-12-07 14:53:37,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:37,918 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:53:37,920 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:37,933 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 14:53:37,933 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:37,941 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 14:53:37,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597912257] [2019-12-07 14:53:37,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:37,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:53:37,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114964531] [2019-12-07 14:53:37,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:53:37,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:37,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:53:37,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:53:37,944 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 4 states. [2019-12-07 14:53:37,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:37,954 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2019-12-07 14:53:37,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:53:37,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 14:53:37,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:37,955 INFO L225 Difference]: With dead ends: 74 [2019-12-07 14:53:37,955 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 14:53:37,956 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 14:53:37,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 14:53:37,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 14:53:37,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 14:53:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2019-12-07 14:53:37,960 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2019-12-07 14:53:37,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:37,960 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2019-12-07 14:53:37,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:53:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2019-12-07 14:53:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 14:53:37,961 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:37,961 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 14:53:38,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:53:38,162 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:38,163 INFO L82 PathProgramCache]: Analyzing trace with hash -964945646, now seen corresponding path program 1 times [2019-12-07 14:53:38,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:38,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731275780] [2019-12-07 14:53:38,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:38,277 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:53:38,278 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:38,286 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 14:53:38,286 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:38,293 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 14:53:38,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731275780] [2019-12-07 14:53:38,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:38,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:53:38,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780394637] [2019-12-07 14:53:38,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:53:38,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:38,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:53:38,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:53:38,295 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 4 states. [2019-12-07 14:53:38,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:38,331 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2019-12-07 14:53:38,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:53:38,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 14:53:38,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:38,332 INFO L225 Difference]: With dead ends: 62 [2019-12-07 14:53:38,332 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 14:53:38,333 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 14:53:38,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 14:53:38,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 14:53:38,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 14:53:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-12-07 14:53:38,337 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2019-12-07 14:53:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:38,337 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-12-07 14:53:38,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:53:38,337 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2019-12-07 14:53:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 14:53:38,338 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:38,338 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:38,539 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:53:38,539 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:38,540 INFO L82 PathProgramCache]: Analyzing trace with hash -952202930, now seen corresponding path program 1 times [2019-12-07 14:53:38,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:38,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680533471] [2019-12-07 14:53:38,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:38,676 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:53:38,677 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:38,682 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 14:53:38,682 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:38,684 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 14:53:38,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680533471] [2019-12-07 14:53:38,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:38,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:53:38,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941278612] [2019-12-07 14:53:38,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:53:38,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:38,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:53:38,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:53:38,687 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2019-12-07 14:53:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:38,731 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2019-12-07 14:53:38,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:53:38,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 14:53:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:38,732 INFO L225 Difference]: With dead ends: 83 [2019-12-07 14:53:38,732 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 14:53:38,733 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:53:38,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 14:53:38,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2019-12-07 14:53:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 14:53:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2019-12-07 14:53:38,741 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2019-12-07 14:53:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:38,742 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-12-07 14:53:38,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:53:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2019-12-07 14:53:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 14:53:38,743 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:38,743 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:38,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:53:38,945 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:38,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:38,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2049720417, now seen corresponding path program 1 times [2019-12-07 14:53:38,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:38,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314824744] [2019-12-07 14:53:38,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:39,091 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:53:39,092 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:39,105 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 14:53:39,105 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:39,111 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 14:53:39,112 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314824744] [2019-12-07 14:53:39,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:39,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:53:39,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54624485] [2019-12-07 14:53:39,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:53:39,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:39,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:53:39,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:53:39,113 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2019-12-07 14:53:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:39,154 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2019-12-07 14:53:39,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:53:39,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 14:53:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:39,156 INFO L225 Difference]: With dead ends: 139 [2019-12-07 14:53:39,156 INFO L226 Difference]: Without dead ends: 92 [2019-12-07 14:53:39,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:53:39,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-07 14:53:39,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2019-12-07 14:53:39,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 14:53:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2019-12-07 14:53:39,164 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2019-12-07 14:53:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:39,165 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2019-12-07 14:53:39,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:53:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2019-12-07 14:53:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 14:53:39,166 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:39,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:39,366 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 14:53:39,367 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:39,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:39,368 INFO L82 PathProgramCache]: Analyzing trace with hash 612790626, now seen corresponding path program 1 times [2019-12-07 14:53:39,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:39,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102038168] [2019-12-07 14:53:39,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:39,507 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:53:39,509 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:39,523 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 14:53:39,523 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:39,527 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 14:53:39,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102038168] [2019-12-07 14:53:39,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:39,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 14:53:39,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752245187] [2019-12-07 14:53:39,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:53:39,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:39,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:53:39,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:53:39,529 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2019-12-07 14:53:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:39,594 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2019-12-07 14:53:39,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:53:39,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 14:53:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:39,596 INFO L225 Difference]: With dead ends: 270 [2019-12-07 14:53:39,596 INFO L226 Difference]: Without dead ends: 220 [2019-12-07 14:53:39,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 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 14:53:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-12-07 14:53:39,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 100. [2019-12-07 14:53:39,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-12-07 14:53:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2019-12-07 14:53:39,609 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 29 [2019-12-07 14:53:39,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:39,609 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2019-12-07 14:53:39,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:53:39,609 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2019-12-07 14:53:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 14:53:39,610 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:39,610 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:39,811 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 14:53:39,812 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:39,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1166654740, now seen corresponding path program 1 times [2019-12-07 14:53:39,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:39,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681190497] [2019-12-07 14:53:39,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:39,965 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:53:39,968 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:39,979 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 14:53:39,979 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:39,982 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 14:53:39,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681190497] [2019-12-07 14:53:39,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:39,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:53:39,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110727361] [2019-12-07 14:53:39,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:53:39,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:39,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:53:39,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:53:39,983 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand 5 states. [2019-12-07 14:53:40,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:40,077 INFO L93 Difference]: Finished difference Result 280 states and 386 transitions. [2019-12-07 14:53:40,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:53:40,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 14:53:40,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:40,079 INFO L225 Difference]: With dead ends: 280 [2019-12-07 14:53:40,079 INFO L226 Difference]: Without dead ends: 278 [2019-12-07 14:53:40,079 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 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 14:53:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-07 14:53:40,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2019-12-07 14:53:40,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-12-07 14:53:40,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2019-12-07 14:53:40,090 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 30 [2019-12-07 14:53:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:40,090 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2019-12-07 14:53:40,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:53:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2019-12-07 14:53:40,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 14:53:40,091 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:40,091 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:40,292 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 14:53:40,293 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:40,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:40,294 INFO L82 PathProgramCache]: Analyzing trace with hash 72774503, now seen corresponding path program 1 times [2019-12-07 14:53:40,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:40,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342678261] [2019-12-07 14:53:40,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:40,422 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:53:40,423 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:40,430 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 14:53:40,430 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:40,439 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 14:53:40,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342678261] [2019-12-07 14:53:40,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:40,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 14:53:40,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470112847] [2019-12-07 14:53:40,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:53:40,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:40,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:53:40,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:53:40,440 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand 6 states. [2019-12-07 14:53:40,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:40,478 INFO L93 Difference]: Finished difference Result 276 states and 374 transitions. [2019-12-07 14:53:40,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:53:40,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-12-07 14:53:40,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:40,480 INFO L225 Difference]: With dead ends: 276 [2019-12-07 14:53:40,480 INFO L226 Difference]: Without dead ends: 182 [2019-12-07 14:53:40,481 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 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 14:53:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-12-07 14:53:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 104. [2019-12-07 14:53:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-12-07 14:53:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2019-12-07 14:53:40,494 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 30 [2019-12-07 14:53:40,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:40,494 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2019-12-07 14:53:40,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:53:40,494 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2019-12-07 14:53:40,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 14:53:40,496 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:40,496 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:40,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 14:53:40,697 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash 330939941, now seen corresponding path program 1 times [2019-12-07 14:53:40,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:40,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605294542] [2019-12-07 14:53:40,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:53:40,890 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:53:40,891 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:53:40,896 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 14:53:40,896 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:53:40,904 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 14:53:40,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605294542] [2019-12-07 14:53:40,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:53:40,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 14:53:40,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132969422] [2019-12-07 14:53:40,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:53:40,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:53:40,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:53:40,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:53:40,906 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand 4 states. [2019-12-07 14:53:40,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:53:40,943 INFO L93 Difference]: Finished difference Result 334 states and 452 transitions. [2019-12-07 14:53:40,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:53:40,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-07 14:53:40,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:53:40,945 INFO L225 Difference]: With dead ends: 334 [2019-12-07 14:53:40,945 INFO L226 Difference]: Without dead ends: 236 [2019-12-07 14:53:40,945 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 14:53:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-12-07 14:53:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 186. [2019-12-07 14:53:40,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-12-07 14:53:40,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 249 transitions. [2019-12-07 14:53:40,958 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 249 transitions. Word has length 30 [2019-12-07 14:53:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:53:40,958 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 249 transitions. [2019-12-07 14:53:40,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:53:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 249 transitions. [2019-12-07 14:53:40,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 14:53:40,959 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:40,959 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:41,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 14:53:41,161 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:41,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:41,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1676876253, now seen corresponding path program 1 times [2019-12-07 14:53:41,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:41,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596515751] [2019-12-07 14:53:41,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/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 14:53:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:53:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:53:43,484 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:53:43,485 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:53:43,685 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 14:53:43,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:53:43 BoogieIcfgContainer [2019-12-07 14:53:43,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:53:43,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:53:43,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:53:43,766 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:53:43,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:53:37" (3/4) ... [2019-12-07 14:53:43,767 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:53:43,822 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d5f3de30-c3a5-484c-a9a5-e7161ada4d46/bin/utaipan/witness.graphml [2019-12-07 14:53:43,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:53:43,824 INFO L168 Benchmark]: Toolchain (without parser) took 7502.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -53.1 MB). Peak memory consumption was 147.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:43,824 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 14:53:43,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:43,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:43,825 INFO L168 Benchmark]: Boogie Preprocessor took 27.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:43,825 INFO L168 Benchmark]: RCFGBuilder took 473.52 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: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:43,825 INFO L168 Benchmark]: TraceAbstraction took 6507.36 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 79.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:43,826 INFO L168 Benchmark]: Witness Printer took 57.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:43,827 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 392.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 473.52 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: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6507.36 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 79.5 MB. Max. memory is 11.5 GB. * Witness Printer took 57.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 514]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int waterLevel = 1; [L525] int methaneLevelCritical = 0; [L689] int pumpRunning = 0; [L690] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] int retValue_acc ; [L905] retValue_acc = 1 [L906] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] int splverifierCounter ; [L621] int tmp ; [L622] int tmp___0 ; [L623] int tmp___1 ; [L624] int tmp___2 ; [L627] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L629] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L631] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L637] tmp = __VERIFIER_nondet_int() [L639] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] COND TRUE waterLevel < 2 [L543] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L647] tmp___0 = __VERIFIER_nondet_int() [L649] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] COND FALSE !(\read(methaneLevelCritical)) [L557] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L657] tmp___2 = __VERIFIER_nondet_int() [L659] COND TRUE \read(tmp___2) [L845] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L697] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L704] COND TRUE \read(systemActive) [L726] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L729] COND TRUE ! pumpRunning [L823] int retValue_acc ; [L824] int tmp ; [L825] int tmp___0 ; [L604] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND FALSE !(waterLevel < 2) [L611] retValue_acc = 0 [L612] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] tmp = isHighWaterSensorDry() [L831] COND FALSE !(\read(tmp)) [L834] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L836] retValue_acc = tmp___0 [L837] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] tmp = isHighWaterLevel() [L733] COND TRUE \read(tmp) [L754] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L851] int tmp ; [L852] int tmp___0 ; [L563] int retValue_acc ; [L566] retValue_acc = methaneLevelCritical [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] tmp = isMethaneLevelCritical() [L858] COND TRUE \read(tmp) [L778] int retValue_acc ; [L781] retValue_acc = pumpRunning [L782] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L860] tmp___0 = isPumpRunning() [L862] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] __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, 78 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 583 SDtfs, 796 SDslu, 943 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred 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: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 464 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 19716 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1699 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...