./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.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_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/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 ea28f55a4b6a2303e55c14d7dbcddcf1e8db1491 ...................................................................................................................................... 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_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/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 ea28f55a4b6a2303e55c14d7dbcddcf1e8db1491 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:02:10,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:02:11,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:02:11,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:02:11,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:02:11,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:02:11,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:02:11,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:02:11,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:02:11,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:02:11,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:02:11,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:02:11,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:02:11,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:02:11,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:02:11,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:02:11,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:02:11,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:02:11,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:02:11,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:02:11,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:02:11,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:02:11,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:02:11,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:02:11,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:02:11,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:02:11,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:02:11,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:02:11,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:02:11,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:02:11,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:02:11,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:02:11,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:02:11,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:02:11,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:02:11,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:02:11,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:02:11,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:02:11,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:02:11,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:02:11,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:02:11,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:02:11,049 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:02:11,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:02:11,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:02:11,050 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:02:11,050 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:02:11,050 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:02:11,050 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:02:11,050 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:02:11,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:02:11,051 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:02:11,051 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:02:11,051 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:02:11,051 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:02:11,052 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:02:11,052 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:02:11,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:02:11,053 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:02:11,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:02:11,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:02:11,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:02:11,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:02:11,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:02:11,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:02:11,054 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:02:11,054 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:02:11,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:02:11,054 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:02:11,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:02:11,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:02:11,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:02:11,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:02:11,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:02:11,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:02:11,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:02:11,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:02:11,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:02:11,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:02:11,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:02:11,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:02:11,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:02:11,057 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_a469db47-8b92-460c-98b2-466b27a41fad/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 -> ea28f55a4b6a2303e55c14d7dbcddcf1e8db1491 [2019-12-07 14:02:11,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:02:11,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:02:11,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:02:11,167 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:02:11,168 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:02:11,168 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2019-12-07 14:02:11,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/f4f2032e4/ad940ef28f684aa8b9ab2bb49a7746a0/FLAG1debe8284 [2019-12-07 14:02:11,631 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:02:11,632 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2019-12-07 14:02:11,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/f4f2032e4/ad940ef28f684aa8b9ab2bb49a7746a0/FLAG1debe8284 [2019-12-07 14:02:11,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/f4f2032e4/ad940ef28f684aa8b9ab2bb49a7746a0 [2019-12-07 14:02:11,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:02:11,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:02:11,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:02:11,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:02:11,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:02:11,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:02:11" (1/1) ... [2019-12-07 14:02:11,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a368b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:11, skipping insertion in model container [2019-12-07 14:02:11,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:02:11" (1/1) ... [2019-12-07 14:02:12,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:02:12,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:02:12,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:02:12,269 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 14:02:12,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75fc279d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:12, skipping insertion in model container [2019-12-07 14:02:12,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:02:12,270 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 14:02:12,271 INFO L168 Benchmark]: Toolchain (without parser) took 288.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:12,271 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:02:12,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:12,273 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 68]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 14:02:13,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:02:13,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:02:13,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:02:13,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:02:13,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:02:13,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:02:13,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:02:13,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:02:13,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:02:13,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:02:13,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:02:13,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:02:13,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:02:13,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:02:13,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:02:13,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:02:13,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:02:13,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:02:13,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:02:13,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:02:13,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:02:13,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:02:13,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:02:13,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:02:13,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:02:13,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:02:13,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:02:13,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:02:13,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:02:13,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:02:13,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:02:13,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:02:13,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:02:13,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:02:13,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:02:13,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:02:13,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:02:13,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:02:13,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:02:13,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:02:13,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:02:13,440 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:02:13,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:02:13,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:02:13,441 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:02:13,441 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:02:13,442 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:02:13,442 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:02:13,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:02:13,442 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:02:13,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:02:13,443 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:02:13,444 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:02:13,444 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:02:13,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:02:13,444 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:02:13,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:02:13,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:02:13,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:02:13,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:02:13,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:02:13,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:02:13,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:02:13,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:02:13,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:02:13,445 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:02:13,445 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:02:13,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:02:13,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:02:13,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:02:13,446 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_a469db47-8b92-460c-98b2-466b27a41fad/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 -> ea28f55a4b6a2303e55c14d7dbcddcf1e8db1491 [2019-12-07 14:02:13,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:02:13,631 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:02:13,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:02:13,636 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:02:13,636 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:02:13,637 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2019-12-07 14:02:13,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/24261c805/fd5fd1f9dd6b47bcb6c9cf8d6c31e2fd/FLAG3ffa10e79 [2019-12-07 14:02:14,107 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:02:14,107 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2019-12-07 14:02:14,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/24261c805/fd5fd1f9dd6b47bcb6c9cf8d6c31e2fd/FLAG3ffa10e79 [2019-12-07 14:02:14,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/data/24261c805/fd5fd1f9dd6b47bcb6c9cf8d6c31e2fd [2019-12-07 14:02:14,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:02:14,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:02:14,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:02:14,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:02:14,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:02:14,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14, skipping insertion in model container [2019-12-07 14:02:14,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:02:14,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:02:14,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:02:14,726 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 14:02:14,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:02:14,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:02:14,781 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:02:14,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:02:14,842 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:02:14,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14 WrapperNode [2019-12-07 14:02:14,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:02:14,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:02:14,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:02:14,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:02:14,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:02:14,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:02:14,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:02:14,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:02:14,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... [2019-12-07 14:02:14,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:02:14,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:02:14,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:02:14,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:02:14,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:02:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:02:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 14:02:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:02:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:02:15,434 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:02:15,434 INFO L287 CfgBuilder]: Removed 118 assume(true) statements. [2019-12-07 14:02:15,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:02:15 BoogieIcfgContainer [2019-12-07 14:02:15,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:02:15,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:02:15,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:02:15,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:02:15,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:02:14" (1/3) ... [2019-12-07 14:02:15,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a766d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:02:15, skipping insertion in model container [2019-12-07 14:02:15,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:14" (2/3) ... [2019-12-07 14:02:15,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a766d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:02:15, skipping insertion in model container [2019-12-07 14:02:15,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:02:15" (3/3) ... [2019-12-07 14:02:15,440 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2019-12-07 14:02:15,447 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:02:15,452 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 14:02:15,460 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 14:02:15,477 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:02:15,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:02:15,477 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:02:15,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:02:15,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:02:15,477 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:02:15,477 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:02:15,477 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:02:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2019-12-07 14:02:15,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 14:02:15,492 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:15,493 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:15,493 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:15,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:15,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1607383533, now seen corresponding path program 1 times [2019-12-07 14:02:15,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:15,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8142924] [2019-12-07 14:02:15,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:15,630 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:02:15,634 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:15,645 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:15,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8142924] [2019-12-07 14:02:15,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:15,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:02:15,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907234985] [2019-12-07 14:02:15,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:02:15,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:15,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:02:15,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:02:15,664 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2019-12-07 14:02:15,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:15,684 INFO L93 Difference]: Finished difference Result 175 states and 264 transitions. [2019-12-07 14:02:15,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:02:15,685 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 14:02:15,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:15,693 INFO L225 Difference]: With dead ends: 175 [2019-12-07 14:02:15,694 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 14:02:15,696 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:02:15,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 14:02:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-12-07 14:02:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-07 14:02:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2019-12-07 14:02:15,725 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2019-12-07 14:02:15,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:15,726 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2019-12-07 14:02:15,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:02:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2019-12-07 14:02:15,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 14:02:15,727 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:15,727 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:15,928 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:02:15,929 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:15,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:15,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1734754371, now seen corresponding path program 1 times [2019-12-07 14:02:15,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:15,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605866030] [2019-12-07 14:02:15,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:16,197 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:02:16,199 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:16,212 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:16,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605866030] [2019-12-07 14:02:16,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:16,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:02:16,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527398362] [2019-12-07 14:02:16,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:02:16,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:16,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:02:16,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:02:16,222 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 4 states. [2019-12-07 14:02:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:16,233 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2019-12-07 14:02:16,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:02:16,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 14:02:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:16,234 INFO L225 Difference]: With dead ends: 87 [2019-12-07 14:02:16,234 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 14:02:16,235 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:02:16,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 14:02:16,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 14:02:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 14:02:16,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-12-07 14:02:16,239 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2019-12-07 14:02:16,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:16,239 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-12-07 14:02:16,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:02:16,240 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-12-07 14:02:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 14:02:16,240 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:16,240 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:16,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:02:16,442 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:16,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1107356745, now seen corresponding path program 1 times [2019-12-07 14:02:16,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:16,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766119103] [2019-12-07 14:02:16,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:16,612 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:02:16,613 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:16,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:16,621 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:16,628 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766119103] [2019-12-07 14:02:16,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:16,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:02:16,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483208661] [2019-12-07 14:02:16,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:02:16,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:16,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:02:16,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:02:16,630 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 4 states. [2019-12-07 14:02:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:16,666 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2019-12-07 14:02:16,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:02:16,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 14:02:16,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:16,667 INFO L225 Difference]: With dead ends: 71 [2019-12-07 14:02:16,667 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 14:02:16,668 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:02:16,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 14:02:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 14:02:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 14:02:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-12-07 14:02:16,672 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2019-12-07 14:02:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:16,673 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-12-07 14:02:16,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:02:16,673 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-12-07 14:02:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 14:02:16,674 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:16,674 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:16,874 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:02:16,875 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:16,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:16,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1414852999, now seen corresponding path program 1 times [2019-12-07 14:02:16,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:16,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760795907] [2019-12-07 14:02:16,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:17,104 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:02:17,105 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:17,111 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:17,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760795907] [2019-12-07 14:02:17,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:17,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:02:17,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070001382] [2019-12-07 14:02:17,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:02:17,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:17,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:02:17,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:02:17,116 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 3 states. [2019-12-07 14:02:17,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:17,159 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2019-12-07 14:02:17,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:02:17,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 14:02:17,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:17,160 INFO L225 Difference]: With dead ends: 93 [2019-12-07 14:02:17,161 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 14:02:17,161 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:02:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 14:02:17,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2019-12-07 14:02:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-12-07 14:02:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2019-12-07 14:02:17,170 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2019-12-07 14:02:17,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:17,170 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2019-12-07 14:02:17,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:02:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2019-12-07 14:02:17,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 14:02:17,172 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:17,172 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:17,372 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:02:17,374 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:17,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1390046811, now seen corresponding path program 1 times [2019-12-07 14:02:17,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:17,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177856525] [2019-12-07 14:02:17,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:17,535 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:02:17,537 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:17,552 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:17,560 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177856525] [2019-12-07 14:02:17,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:17,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 14:02:17,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981535325] [2019-12-07 14:02:17,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:02:17,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:17,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:02:17,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:02:17,562 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand 5 states. [2019-12-07 14:02:17,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:17,637 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2019-12-07 14:02:17,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:02:17,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 14:02:17,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:17,639 INFO L225 Difference]: With dead ends: 271 [2019-12-07 14:02:17,639 INFO L226 Difference]: Without dead ends: 219 [2019-12-07 14:02:17,640 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:02:17,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-12-07 14:02:17,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2019-12-07 14:02:17,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-12-07 14:02:17,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2019-12-07 14:02:17,652 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2019-12-07 14:02:17,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:17,652 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2019-12-07 14:02:17,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:02:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2019-12-07 14:02:17,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 14:02:17,653 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:17,653 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:17,854 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 14:02:17,855 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:17,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:17,855 INFO L82 PathProgramCache]: Analyzing trace with hash 272516125, now seen corresponding path program 1 times [2019-12-07 14:02:17,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:17,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892513292] [2019-12-07 14:02:17,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:17,988 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:02:17,990 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:18,004 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:18,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892513292] [2019-12-07 14:02:18,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:18,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:02:18,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35108938] [2019-12-07 14:02:18,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:02:18,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:18,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:02:18,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:02:18,009 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand 5 states. [2019-12-07 14:02:18,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:18,144 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2019-12-07 14:02:18,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:02:18,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 14:02:18,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:18,147 INFO L225 Difference]: With dead ends: 376 [2019-12-07 14:02:18,147 INFO L226 Difference]: Without dead ends: 280 [2019-12-07 14:02:18,148 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:02:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-07 14:02:18,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2019-12-07 14:02:18,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 14:02:18,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2019-12-07 14:02:18,164 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2019-12-07 14:02:18,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:18,165 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2019-12-07 14:02:18,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:02:18,165 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2019-12-07 14:02:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 14:02:18,166 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:18,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:18,367 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 14:02:18,368 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:18,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:18,369 INFO L82 PathProgramCache]: Analyzing trace with hash -824557763, now seen corresponding path program 1 times [2019-12-07 14:02:18,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:18,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859950295] [2019-12-07 14:02:18,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:18,608 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:02:18,609 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:18,623 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:18,626 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859950295] [2019-12-07 14:02:18,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:18,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:02:18,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498810222] [2019-12-07 14:02:18,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:02:18,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:18,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:02:18,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:02:18,627 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand 5 states. [2019-12-07 14:02:18,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:18,663 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2019-12-07 14:02:18,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:02:18,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-07 14:02:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:18,664 INFO L225 Difference]: With dead ends: 273 [2019-12-07 14:02:18,664 INFO L226 Difference]: Without dead ends: 178 [2019-12-07 14:02:18,665 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:02:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-12-07 14:02:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2019-12-07 14:02:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-12-07 14:02:18,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2019-12-07 14:02:18,676 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2019-12-07 14:02:18,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:18,677 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2019-12-07 14:02:18,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:02:18,677 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2019-12-07 14:02:18,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 14:02:18,678 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:18,678 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:18,879 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 14:02:18,879 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:18,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:18,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1835675013, now seen corresponding path program 1 times [2019-12-07 14:02:18,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:18,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039543028] [2019-12-07 14:02:18,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:19,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:02:19,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:19,014 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:19,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039543028] [2019-12-07 14:02:19,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:19,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 14:02:19,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105993024] [2019-12-07 14:02:19,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:02:19,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:19,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:02:19,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:02:19,027 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand 6 states. [2019-12-07 14:02:19,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:19,054 INFO L93 Difference]: Finished difference Result 291 states and 395 transitions. [2019-12-07 14:02:19,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:02:19,054 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-12-07 14:02:19,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:19,055 INFO L225 Difference]: With dead ends: 291 [2019-12-07 14:02:19,055 INFO L226 Difference]: Without dead ends: 190 [2019-12-07 14:02:19,056 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:02:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-12-07 14:02:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 112. [2019-12-07 14:02:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-12-07 14:02:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2019-12-07 14:02:19,064 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2019-12-07 14:02:19,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:19,065 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2019-12-07 14:02:19,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:02:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2019-12-07 14:02:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 14:02:19,065 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:19,065 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:19,266 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 14:02:19,267 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:19,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:19,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1438223929, now seen corresponding path program 1 times [2019-12-07 14:02:19,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:19,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106766359] [2019-12-07 14:02:19,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:19,405 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:02:19,406 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:19,411 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:19,418 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106766359] [2019-12-07 14:02:19,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:19,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 14:02:19,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361889393] [2019-12-07 14:02:19,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:02:19,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:19,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:02:19,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:02:19,419 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand 4 states. [2019-12-07 14:02:19,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:19,458 INFO L93 Difference]: Finished difference Result 350 states and 475 transitions. [2019-12-07 14:02:19,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:02:19,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-07 14:02:19,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:19,461 INFO L225 Difference]: With dead ends: 350 [2019-12-07 14:02:19,461 INFO L226 Difference]: Without dead ends: 245 [2019-12-07 14:02:19,461 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:02:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-12-07 14:02:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 195. [2019-12-07 14:02:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-12-07 14:02:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 262 transitions. [2019-12-07 14:02:19,479 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 262 transitions. Word has length 35 [2019-12-07 14:02:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:19,479 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 262 transitions. [2019-12-07 14:02:19,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:02:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 262 transitions. [2019-12-07 14:02:19,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 14:02:19,480 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:19,480 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:19,680 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 14:02:19,681 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:19,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1113565433, now seen corresponding path program 1 times [2019-12-07 14:02:19,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:19,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208213877] [2019-12-07 14:02:19,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:19,772 INFO L264 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:02:19,773 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:19,791 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:19,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208213877] [2019-12-07 14:02:19,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:19,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 14:02:19,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810827064] [2019-12-07 14:02:19,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 14:02:19,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:19,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 14:02:19,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:02:19,821 INFO L87 Difference]: Start difference. First operand 195 states and 262 transitions. Second operand 10 states. [2019-12-07 14:02:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:20,171 INFO L93 Difference]: Finished difference Result 793 states and 1045 transitions. [2019-12-07 14:02:20,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 14:02:20,172 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2019-12-07 14:02:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:20,175 INFO L225 Difference]: With dead ends: 793 [2019-12-07 14:02:20,175 INFO L226 Difference]: Without dead ends: 605 [2019-12-07 14:02:20,175 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-12-07 14:02:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2019-12-07 14:02:20,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 195. [2019-12-07 14:02:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-12-07 14:02:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2019-12-07 14:02:20,192 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 36 [2019-12-07 14:02:20,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:20,192 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2019-12-07 14:02:20,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 14:02:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2019-12-07 14:02:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 14:02:20,193 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:20,193 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:20,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 14:02:20,395 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:20,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:20,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1527108990, now seen corresponding path program 1 times [2019-12-07 14:02:20,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:20,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234305128] [2019-12-07 14:02:20,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/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 14:02:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:20,553 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:02:20,554 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:20,559 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:20,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234305128] [2019-12-07 14:02:20,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:20,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:02:20,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147874325] [2019-12-07 14:02:20,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:02:20,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:02:20,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:02:20,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:02:20,563 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand 3 states. [2019-12-07 14:02:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:20,614 INFO L93 Difference]: Finished difference Result 319 states and 420 transitions. [2019-12-07 14:02:20,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:02:20,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-12-07 14:02:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:20,617 INFO L225 Difference]: With dead ends: 319 [2019-12-07 14:02:20,617 INFO L226 Difference]: Without dead ends: 317 [2019-12-07 14:02:20,617 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:02:20,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-12-07 14:02:20,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 235. [2019-12-07 14:02:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-12-07 14:02:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 316 transitions. [2019-12-07 14:02:20,633 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 316 transitions. Word has length 51 [2019-12-07 14:02:20,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:20,634 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 316 transitions. [2019-12-07 14:02:20,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:02:20,634 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 316 transitions. [2019-12-07 14:02:20,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 14:02:20,634 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:20,634 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:02:20,835 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 14:02:20,836 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:02:20,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:20,837 INFO L82 PathProgramCache]: Analyzing trace with hash 338659975, now seen corresponding path program 1 times [2019-12-07 14:02:20,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:02:20,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394511946] [2019-12-07 14:02:20,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 14:02:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:02:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:02:23,299 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:02:23,299 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:02:23,500 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 14:02:23,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:02:23 BoogieIcfgContainer [2019-12-07 14:02:23,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:02:23,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:02:23,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:02:23,602 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:02:23,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:02:15" (3/4) ... [2019-12-07 14:02:23,604 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:02:23,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a469db47-8b92-460c-98b2-466b27a41fad/bin/utaipan/witness.graphml [2019-12-07 14:02:23,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:02:23,700 INFO L168 Benchmark]: Toolchain (without parser) took 9229.28 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 292.0 MB). Free memory was 947.0 MB in the beginning and 1.3 GB in the end (delta: -324.0 MB). Peak memory consumption was 372.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:23,700 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:02:23,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:23,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:23,700 INFO L168 Benchmark]: Boogie Preprocessor took 34.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:02:23,701 INFO L168 Benchmark]: RCFGBuilder took 513.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:23,701 INFO L168 Benchmark]: TraceAbstraction took 8165.68 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 779.0 MB in the end (delta: 227.7 MB). Peak memory consumption was 311.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:23,701 INFO L168 Benchmark]: Witness Printer took 96.83 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 102.2 MB). Free memory was 779.0 MB in the beginning and 1.3 GB in the end (delta: -492.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:23,702 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 371.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 513.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8165.68 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 779.0 MB in the end (delta: 227.7 MB). Peak memory consumption was 311.6 MB. Max. memory is 11.5 GB. * Witness Printer took 96.83 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 102.2 MB). Free memory was 779.0 MB in the beginning and 1.3 GB in the end (delta: -492.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 844]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L486] int pumpRunning = 0; [L487] int systemActive = 1; [L666] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L850] int waterLevel = 1; [L851] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L734] int retValue_acc ; [L737] retValue_acc = 1 [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L671] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L412] int splverifierCounter ; [L413] int tmp ; [L414] int tmp___0 ; [L415] int tmp___1 ; [L416] int tmp___2 ; [L419] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L421] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] COND TRUE waterLevel < 2 [L869] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___2) [L660] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L501] COND TRUE \read(systemActive) [L523] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L526] COND TRUE ! pumpRunning [L638] int retValue_acc ; [L639] int tmp ; [L640] int tmp___0 ; [L930] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L933] COND FALSE !(waterLevel < 2) [L937] retValue_acc = 0 [L938] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] tmp = isHighWaterSensorDry() [L646] COND FALSE !(\read(tmp)) [L649] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] retValue_acc = tmp___0 [L652] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] tmp = isHighWaterLevel() [L530] COND TRUE \read(tmp) [L557] int tmp ; [L582] int retValue_acc ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] retValue_acc = isMethaneLevelCritical() [L588] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp = isMethaneAlarm() [L563] COND FALSE !(\read(tmp)) [L551] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L676] int tmp ; [L677] int tmp___0 ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L681] tmp = isMethaneLevelCritical() [L683] COND FALSE !(\read(tmp)) [L699] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L423] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND FALSE !(\read(methaneLevelCritical)) [L883] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___2) [L660] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L494] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L501] COND TRUE \read(systemActive) [L523] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L526] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] int tmp ; [L677] int tmp___0 ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] COND FALSE !(\read(methAndRunningLastTime)) [L693] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L421] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___2) [L660] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L501] COND TRUE \read(systemActive) [L523] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L526] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L676] int tmp ; [L677] int tmp___0 ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L688] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L844] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 3 error locations. Result: UNSAFE, OverallTime: 8.0s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 874 SDtfs, 1215 SDslu, 1920 SDs, 0 SdLazy, 221 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 689 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=11, 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, 11 MinimizatonAttempts, 986 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 38856 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2181 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28/28 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...