./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_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_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 feddb53df5c889a09349b532f3a03633c4161684 ...................................................................................................................................... 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_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 feddb53df5c889a09349b532f3a03633c4161684 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:37:01,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:37:01,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:37:01,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:37:01,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:37:01,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:37:01,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:37:01,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:37:01,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:37:01,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:37:01,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:37:01,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:37:01,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:37:01,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:37:01,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:37:01,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:37:01,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:37:01,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:37:01,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:37:01,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:37:01,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:37:01,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:37:01,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:37:01,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:37:01,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:37:01,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:37:01,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:37:01,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:37:01,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:37:01,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:37:01,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:37:01,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:37:01,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:37:01,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:37:01,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:37:01,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:37:01,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:37:01,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:37:01,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:37:01,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:37:01,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:37:01,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:37:01,265 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:37:01,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:37:01,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:37:01,266 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:37:01,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:37:01,266 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:37:01,266 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:37:01,267 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:37:01,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:37:01,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:37:01,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:37:01,267 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:37:01,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:37:01,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:37:01,268 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:37:01,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:37:01,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:37:01,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:37:01,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:37:01,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:37:01,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:37:01,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:37:01,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:37:01,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:37:01,270 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:37:01,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:37:01,271 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:37:01,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:37:01,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:37:01,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:37:01,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:37:01,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:37:01,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:37:01,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:37:01,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:37:01,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:37:01,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:37:01,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:37:01,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:37:01,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:37:01,273 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_f68b8b7d-f617-414d-ab8a-754f57414489/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 -> feddb53df5c889a09349b532f3a03633c4161684 [2019-12-07 11:37:01,372 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:37:01,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:37:01,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:37:01,386 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:37:01,387 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:37:01,387 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2019-12-07 11:37:01,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/d602c5fed/ad0c5f4c2cdf4157af7a66144543294d/FLAG8f523eb1d [2019-12-07 11:37:01,783 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:37:01,784 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2019-12-07 11:37:01,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/d602c5fed/ad0c5f4c2cdf4157af7a66144543294d/FLAG8f523eb1d [2019-12-07 11:37:01,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/d602c5fed/ad0c5f4c2cdf4157af7a66144543294d [2019-12-07 11:37:01,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:37:01,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:37:01,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:37:01,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:37:01,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:37:01,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:37:01" (1/1) ... [2019-12-07 11:37:01,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:01, skipping insertion in model container [2019-12-07 11:37:01,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:37:01" (1/1) ... [2019-12-07 11:37:01,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:37:01,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:37:02,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:37:02,109 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 11:37:02,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21c426f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:02, skipping insertion in model container [2019-12-07 11:37:02,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:37:02,110 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:37:02,112 INFO L168 Benchmark]: Toolchain (without parser) took 303.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:02,113 INFO L168 Benchmark]: CDTParser took 0.21 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 11:37:02,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:02,115 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 301.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 573]: 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 11:37:03,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:37:03,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:37:03,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:37:03,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:37:03,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:37:03,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:37:03,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:37:03,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:37:03,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:37:03,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:37:03,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:37:03,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:37:03,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:37:03,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:37:03,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:37:03,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:37:03,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:37:03,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:37:03,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:37:03,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:37:03,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:37:03,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:37:03,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:37:03,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:37:03,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:37:03,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:37:03,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:37:03,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:37:03,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:37:03,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:37:03,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:37:03,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:37:03,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:37:03,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:37:03,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:37:03,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:37:03,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:37:03,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:37:03,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:37:03,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:37:03,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:37:03,296 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:37:03,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:37:03,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:37:03,297 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:37:03,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:37:03,297 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:37:03,298 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:37:03,298 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:37:03,298 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:37:03,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:37:03,298 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:37:03,299 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:37:03,300 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:37:03,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:37:03,300 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:37:03,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:37:03,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:37:03,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:37:03,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:37:03,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:37:03,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:37:03,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:37:03,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:37:03,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:37:03,301 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:37:03,301 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:37:03,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:37:03,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:37:03,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:37:03,302 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_f68b8b7d-f617-414d-ab8a-754f57414489/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 -> feddb53df5c889a09349b532f3a03633c4161684 [2019-12-07 11:37:03,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:37:03,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:37:03,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:37:03,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:37:03,480 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:37:03,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2019-12-07 11:37:03,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/22c67923d/5e3425a2907f4b6a82006873465f3d96/FLAG693d3b313 [2019-12-07 11:37:03,882 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:37:03,882 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2019-12-07 11:37:03,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/22c67923d/5e3425a2907f4b6a82006873465f3d96/FLAG693d3b313 [2019-12-07 11:37:03,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/data/22c67923d/5e3425a2907f4b6a82006873465f3d96 [2019-12-07 11:37:03,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:37:03,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:37:03,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:37:03,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:37:03,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:37:03,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:37:03" (1/1) ... [2019-12-07 11:37:03,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:03, skipping insertion in model container [2019-12-07 11:37:03,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:37:03" (1/1) ... [2019-12-07 11:37:03,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:37:03,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:37:04,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:37:04,168 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:37:04,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:37:04,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:37:04,215 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:37:04,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:37:04,276 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:37:04,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04 WrapperNode [2019-12-07 11:37:04,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:37:04,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:37:04,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:37:04,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:37:04,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:37:04,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:37:04,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:37:04,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:37:04,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... [2019-12-07 11:37:04,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:37:04,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:37:04,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:37:04,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:37:04,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:37:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 11:37:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:37:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:37:04,833 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:37:04,833 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-12-07 11:37:04,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:37:04 BoogieIcfgContainer [2019-12-07 11:37:04,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:37:04,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:37:04,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:37:04,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:37:04,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:37:03" (1/3) ... [2019-12-07 11:37:04,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773d2138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:37:04, skipping insertion in model container [2019-12-07 11:37:04,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:37:04" (2/3) ... [2019-12-07 11:37:04,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773d2138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:37:04, skipping insertion in model container [2019-12-07 11:37:04,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:37:04" (3/3) ... [2019-12-07 11:37:04,841 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2019-12-07 11:37:04,848 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:37:04,853 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:37:04,860 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:37:04,877 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:37:04,877 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:37:04,877 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:37:04,877 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:37:04,877 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:37:04,877 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:37:04,877 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:37:04,877 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:37:04,888 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-12-07 11:37:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 11:37:04,893 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:04,893 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:37:04,894 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:04,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:04,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1424204181, now seen corresponding path program 1 times [2019-12-07 11:37:04,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:04,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197210261] [2019-12-07 11:37:04,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:05,062 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:37:05,065 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:05,076 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 11:37:05,076 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:05,080 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 11:37:05,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197210261] [2019-12-07 11:37:05,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:37:05,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:37:05,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797256316] [2019-12-07 11:37:05,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:37:05,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:05,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:37:05,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:37:05,097 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2019-12-07 11:37:05,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:05,118 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2019-12-07 11:37:05,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:37:05,119 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 11:37:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:05,130 INFO L225 Difference]: With dead ends: 150 [2019-12-07 11:37:05,130 INFO L226 Difference]: Without dead ends: 74 [2019-12-07 11:37:05,133 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 11:37:05,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-12-07 11:37:05,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-12-07 11:37:05,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 11:37:05,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-12-07 11:37:05,160 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2019-12-07 11:37:05,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:05,161 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 11:37:05,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:37:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-12-07 11:37:05,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 11:37:05,162 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:05,162 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 11:37:05,362 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:37:05,363 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:05,364 INFO L82 PathProgramCache]: Analyzing trace with hash -631654862, now seen corresponding path program 1 times [2019-12-07 11:37:05,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:05,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988510482] [2019-12-07 11:37:05,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:05,584 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:37:05,586 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:05,602 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 11:37:05,602 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:05,611 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 11:37:05,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988510482] [2019-12-07 11:37:05,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:37:05,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:37:05,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756267677] [2019-12-07 11:37:05,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:37:05,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:05,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:37:05,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:37:05,615 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 4 states. [2019-12-07 11:37:05,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:05,627 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2019-12-07 11:37:05,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:37:05,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 11:37:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:05,628 INFO L225 Difference]: With dead ends: 74 [2019-12-07 11:37:05,629 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 11:37:05,630 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 11:37:05,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 11:37:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 11:37:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 11:37:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2019-12-07 11:37:05,635 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2019-12-07 11:37:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:05,635 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2019-12-07 11:37:05,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:37:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2019-12-07 11:37:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 11:37:05,636 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:05,636 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 11:37:05,837 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:37:05,837 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:05,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:05,837 INFO L82 PathProgramCache]: Analyzing trace with hash -964945646, now seen corresponding path program 1 times [2019-12-07 11:37:05,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:05,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685356343] [2019-12-07 11:37:05,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:05,941 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:37:05,942 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:05,949 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 11:37:05,949 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:05,958 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 11:37:05,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685356343] [2019-12-07 11:37:05,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:37:05,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:37:05,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966393105] [2019-12-07 11:37:05,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:37:05,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:05,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:37:05,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:37:05,960 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 4 states. [2019-12-07 11:37:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:05,996 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2019-12-07 11:37:05,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:37:05,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 11:37:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:05,998 INFO L225 Difference]: With dead ends: 62 [2019-12-07 11:37:05,998 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 11:37:05,998 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 11:37:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 11:37:06,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 11:37:06,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 11:37:06,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-12-07 11:37:06,004 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2019-12-07 11:37:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:06,004 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-12-07 11:37:06,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:37:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2019-12-07 11:37:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 11:37:06,006 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:06,006 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 11:37:06,206 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:37:06,206 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:06,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:06,207 INFO L82 PathProgramCache]: Analyzing trace with hash -952202930, now seen corresponding path program 1 times [2019-12-07 11:37:06,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:06,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519096522] [2019-12-07 11:37:06,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:06,310 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:37:06,311 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:06,317 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 11:37:06,318 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:37:06,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519096522] [2019-12-07 11:37:06,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:37:06,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:37:06,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067286493] [2019-12-07 11:37:06,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:37:06,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:06,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:37:06,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:37:06,322 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2019-12-07 11:37:06,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:06,369 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2019-12-07 11:37:06,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:37:06,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 11:37:06,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:06,370 INFO L225 Difference]: With dead ends: 83 [2019-12-07 11:37:06,370 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 11:37:06,371 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 11:37:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 11:37:06,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2019-12-07 11:37:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 11:37:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2019-12-07 11:37:06,377 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2019-12-07 11:37:06,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:06,377 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-12-07 11:37:06,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:37:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2019-12-07 11:37:06,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 11:37:06,378 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:06,378 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 11:37:06,579 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:37:06,580 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:06,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:06,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2049720417, now seen corresponding path program 1 times [2019-12-07 11:37:06,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:06,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838117151] [2019-12-07 11:37:06,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:06,728 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:37:06,729 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:06,744 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 11:37:06,744 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:06,750 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 11:37:06,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838117151] [2019-12-07 11:37:06,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:37:06,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 11:37:06,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572373568] [2019-12-07 11:37:06,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:37:06,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:06,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:37:06,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:37:06,751 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2019-12-07 11:37:06,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:06,797 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2019-12-07 11:37:06,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:37:06,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 11:37:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:06,798 INFO L225 Difference]: With dead ends: 139 [2019-12-07 11:37:06,798 INFO L226 Difference]: Without dead ends: 92 [2019-12-07 11:37:06,799 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 11:37:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-07 11:37:06,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2019-12-07 11:37:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 11:37:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2019-12-07 11:37:06,806 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2019-12-07 11:37:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:06,806 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2019-12-07 11:37:06,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:37:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2019-12-07 11:37:06,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 11:37:06,807 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:06,807 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 11:37:07,007 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:37:07,009 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:07,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:07,009 INFO L82 PathProgramCache]: Analyzing trace with hash 612790626, now seen corresponding path program 1 times [2019-12-07 11:37:07,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:07,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034426640] [2019-12-07 11:37:07,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:07,146 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:37:07,148 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:07,165 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 11:37:07,165 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:07,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:37:07,188 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034426640] [2019-12-07 11:37:07,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:37:07,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 11:37:07,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027424239] [2019-12-07 11:37:07,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:37:07,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:07,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:37:07,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:37:07,189 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 8 states. [2019-12-07 11:37:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:07,412 INFO L93 Difference]: Finished difference Result 390 states and 558 transitions. [2019-12-07 11:37:07,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 11:37:07,412 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-12-07 11:37:07,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:07,414 INFO L225 Difference]: With dead ends: 390 [2019-12-07 11:37:07,415 INFO L226 Difference]: Without dead ends: 340 [2019-12-07 11:37:07,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 11:37:07,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-12-07 11:37:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2019-12-07 11:37:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 11:37:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2019-12-07 11:37:07,447 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 29 [2019-12-07 11:37:07,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:07,447 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2019-12-07 11:37:07,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:37:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2019-12-07 11:37:07,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-07 11:37:07,449 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:07,449 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:37:07,649 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:37:07,650 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:07,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:07,650 INFO L82 PathProgramCache]: Analyzing trace with hash -230943976, now seen corresponding path program 1 times [2019-12-07 11:37:07,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:07,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421772385] [2019-12-07 11:37:07,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:07,762 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:37:07,764 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 11:37:07,773 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:07,785 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 11:37:07,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421772385] [2019-12-07 11:37:07,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:37:07,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:37:07,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187171722] [2019-12-07 11:37:07,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:37:07,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:07,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:37:07,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:37:07,786 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 6 states. [2019-12-07 11:37:07,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:07,827 INFO L93 Difference]: Finished difference Result 325 states and 442 transitions. [2019-12-07 11:37:07,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:37:07,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2019-12-07 11:37:07,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:07,829 INFO L225 Difference]: With dead ends: 325 [2019-12-07 11:37:07,829 INFO L226 Difference]: Without dead ends: 191 [2019-12-07 11:37:07,830 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 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 11:37:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-12-07 11:37:07,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 120. [2019-12-07 11:37:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 11:37:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2019-12-07 11:37:07,845 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 44 [2019-12-07 11:37:07,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:07,845 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2019-12-07 11:37:07,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:37:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2019-12-07 11:37:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-07 11:37:07,847 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:07,847 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:37:08,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 11:37:08,051 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:08,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:08,052 INFO L82 PathProgramCache]: Analyzing trace with hash -187398120, now seen corresponding path program 1 times [2019-12-07 11:37:08,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:08,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070133228] [2019-12-07 11:37:08,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/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 11:37:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:08,184 INFO L264 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:37:08,186 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:08,207 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 11:37:08,208 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 11:37:08,236 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070133228] [2019-12-07 11:37:08,236 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [605902280] [2019-12-07 11:37:08,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 11:37:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:08,340 INFO L264 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:37:08,341 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 11:37:08,347 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 11:37:08,352 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993016358] [2019-12-07 11:37:08,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:37:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:37:08,434 INFO L264 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:37:08,436 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:37:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 11:37:08,442 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:37:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 11:37:08,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 11:37:08,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 11:37:08,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152760726] [2019-12-07 11:37:08,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 11:37:08,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:37:08,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 11:37:08,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 11:37:08,448 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand 10 states. [2019-12-07 11:37:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:37:08,959 INFO L93 Difference]: Finished difference Result 727 states and 1006 transitions. [2019-12-07 11:37:08,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 11:37:08,959 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-07 11:37:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:37:08,963 INFO L225 Difference]: With dead ends: 727 [2019-12-07 11:37:08,964 INFO L226 Difference]: Without dead ends: 636 [2019-12-07 11:37:08,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 11:37:08,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2019-12-07 11:37:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 217. [2019-12-07 11:37:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-12-07 11:37:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2019-12-07 11:37:08,989 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 45 [2019-12-07 11:37:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:37:08,990 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2019-12-07 11:37:08,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 11:37:08,990 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2019-12-07 11:37:08,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-12-07 11:37:08,991 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:37:08,992 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:37:09,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:37:09,594 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:37:09,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:37:09,595 INFO L82 PathProgramCache]: Analyzing trace with hash 774082429, now seen corresponding path program 2 times [2019-12-07 11:37:09,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:37:09,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386403395] [2019-12-07 11:37:09,597 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 11:37:10,608 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 11:37:10,608 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 11:37:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:37:11,870 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:37:11,870 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:37:12,070 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 11:37:12,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:37:12 BoogieIcfgContainer [2019-12-07 11:37:12,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:37:12,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:37:12,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:37:12,182 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:37:12,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:37:04" (3/4) ... [2019-12-07 11:37:12,184 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:37:12,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f68b8b7d-f617-414d-ab8a-754f57414489/bin/utaipan/witness.graphml [2019-12-07 11:37:12,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:37:12,272 INFO L168 Benchmark]: Toolchain (without parser) took 8368.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 952.4 MB in the beginning and 857.4 MB in the end (delta: 95.0 MB). Peak memory consumption was 306.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:12,272 INFO L168 Benchmark]: CDTParser took 0.13 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 11:37:12,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:12,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:12,272 INFO L168 Benchmark]: Boogie Preprocessor took 28.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:37:12,273 INFO L168 Benchmark]: RCFGBuilder took 485.50 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: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:12,273 INFO L168 Benchmark]: TraceAbstraction took 7346.66 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 888.2 MB in the end (delta: 150.3 MB). Peak memory consumption was 230.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:12,273 INFO L168 Benchmark]: Witness Printer took 88.59 ms. Allocated memory is still 1.2 GB. Free memory was 888.2 MB in the beginning and 857.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:37:12,274 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 485.50 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: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7346.66 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 888.2 MB in the end (delta: 150.3 MB). Peak memory consumption was 230.0 MB. Max. memory is 11.5 GB. * Witness Printer took 88.59 ms. Allocated memory is still 1.2 GB. Free memory was 888.2 MB in the beginning and 857.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L282] int pumpRunning = 0; [L283] int systemActive = 1; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L150] int retValue_acc ; [L151] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L199] int retValue_acc ; [L202] retValue_acc = 1 [L203] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L210] int splverifierCounter ; [L211] int tmp ; [L212] int tmp___0 ; [L213] int tmp___1 ; [L214] int tmp___2 ; [L217] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L219] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L221] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L227] tmp = __VERIFIER_nondet_int() [L229] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L460] COND TRUE waterLevel < 2 [L461] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND TRUE \read(tmp___2) [L437] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] COND TRUE \read(systemActive) [L318] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] COND TRUE ! pumpRunning [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L522] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] COND FALSE !(waterLevel < 2) [L529] retValue_acc = 0 [L530] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] tmp = isHighWaterLevel() [L325] COND TRUE \read(tmp) [L346] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L219] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L221] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND TRUE \read(tmp___2) [L437] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L289] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L296] COND TRUE \read(systemActive) [L318] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L321] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L219] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L221] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND TRUE \read(tmp___2) [L437] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L289] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L296] COND TRUE \read(systemActive) [L318] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L321] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L540] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Result: UNSAFE, OverallTime: 7.1s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 584 SDtfs, 1416 SDslu, 1270 SDs, 0 SdLazy, 284 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 728 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 58312 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1967 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 58/112 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...