./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product59.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_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 8a74a11a5d5c8fe8b4adcf5c10f76ddbc8ce0734 ...................................................................................................................................... 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_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 8a74a11a5d5c8fe8b4adcf5c10f76ddbc8ce0734 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:33:46,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:33:46,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:33:46,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:33:46,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:33:46,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:33:46,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:33:46,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:33:46,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:33:46,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:33:46,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:33:46,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:33:46,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:33:46,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:33:46,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:33:46,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:33:46,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:33:46,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:33:46,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:33:46,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:33:46,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:33:46,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:33:46,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:33:46,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:33:46,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:33:46,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:33:46,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:33:47,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:33:47,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:33:47,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:33:47,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:33:47,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:33:47,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:33:47,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:33:47,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:33:47,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:33:47,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:33:47,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:33:47,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:33:47,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:33:47,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:33:47,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:33:47,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:33:47,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:33:47,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:33:47,016 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:33:47,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:33:47,016 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:33:47,016 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:33:47,016 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:33:47,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:33:47,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:33:47,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:33:47,017 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:33:47,017 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:33:47,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:33:47,017 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:33:47,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:33:47,018 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:33:47,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:33:47,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:33:47,019 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:33:47,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:33:47,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:33:47,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:33:47,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:33:47,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:33:47,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:33:47,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:33:47,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:33:47,020 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:33:47,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:33:47,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:33:47,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:33:47,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:33:47,021 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_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 -> 8a74a11a5d5c8fe8b4adcf5c10f76ddbc8ce0734 [2019-12-07 13:33:47,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:33:47,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:33:47,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:33:47,134 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:33:47,134 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:33:47,135 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product59.cil.c [2019-12-07 13:33:47,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/157f77d49/0ac4867ffa2646db89edaae53fd953d9/FLAG6098477b0 [2019-12-07 13:33:47,579 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:33:47,579 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/sv-benchmarks/c/product-lines/minepump_spec2_product59.cil.c [2019-12-07 13:33:47,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/157f77d49/0ac4867ffa2646db89edaae53fd953d9/FLAG6098477b0 [2019-12-07 13:33:47,963 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/157f77d49/0ac4867ffa2646db89edaae53fd953d9 [2019-12-07 13:33:47,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:33:47,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:33:47,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:33:47,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:33:47,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:33:47,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:33:47" (1/1) ... [2019-12-07 13:33:47,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@739ea90f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:47, skipping insertion in model container [2019-12-07 13:33:47,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:33:47" (1/1) ... [2019-12-07 13:33:47,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:33:48,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:33:48,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:33:48,237 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 13:33:48,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41fa9ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:48, skipping insertion in model container [2019-12-07 13:33:48,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:33:48,237 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 13:33:48,239 INFO L168 Benchmark]: Toolchain (without parser) took 272.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -146.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:33:48,240 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:33:48,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:33:48,242 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 563]: 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 13:33:49,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:33:49,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:33:49,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:33:49,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:33:49,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:33:49,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:33:49,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:33:49,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:33:49,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:33:49,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:33:49,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:33:49,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:33:49,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:33:49,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:33:49,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:33:49,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:33:49,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:33:49,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:33:49,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:33:49,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:33:49,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:33:49,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:33:49,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:33:49,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:33:49,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:33:49,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:33:49,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:33:49,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:33:49,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:33:49,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:33:49,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:33:49,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:33:49,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:33:49,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:33:49,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:33:49,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:33:49,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:33:49,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:33:49,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:33:49,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:33:49,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:33:49,463 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:33:49,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:33:49,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:33:49,464 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:33:49,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:33:49,464 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:33:49,465 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:33:49,465 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:33:49,465 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:33:49,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:33:49,466 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:33:49,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:33:49,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:33:49,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:33:49,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:33:49,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:33:49,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:33:49,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:33:49,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:33:49,467 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:33:49,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:33:49,467 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:33:49,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:33:49,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:33:49,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:33:49,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:33:49,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:33:49,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:33:49,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:33:49,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:33:49,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:33:49,469 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:33:49,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:33:49,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:33:49,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:33:49,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:33:49,469 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_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 -> 8a74a11a5d5c8fe8b4adcf5c10f76ddbc8ce0734 [2019-12-07 13:33:49,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:33:49,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:33:49,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:33:49,641 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:33:49,641 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:33:49,641 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product59.cil.c [2019-12-07 13:33:49,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/376147042/ee81a94dfed346c6a4f5a99f5ae1c05b/FLAGc9be1eb99 [2019-12-07 13:33:50,151 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:33:50,152 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/sv-benchmarks/c/product-lines/minepump_spec2_product59.cil.c [2019-12-07 13:33:50,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/376147042/ee81a94dfed346c6a4f5a99f5ae1c05b/FLAGc9be1eb99 [2019-12-07 13:33:50,174 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/data/376147042/ee81a94dfed346c6a4f5a99f5ae1c05b [2019-12-07 13:33:50,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:33:50,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:33:50,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:33:50,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:33:50,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:33:50,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50, skipping insertion in model container [2019-12-07 13:33:50,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:33:50,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:33:50,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:33:50,451 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 13:33:50,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:33:50,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:33:50,518 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:33:50,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:33:50,582 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:33:50,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50 WrapperNode [2019-12-07 13:33:50,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:33:50,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:33:50,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:33:50,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:33:50,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:33:50,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:33:50,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:33:50,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:33:50,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... [2019-12-07 13:33:50,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:33:50,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:33:50,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:33:50,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:33:50,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:33:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 13:33:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:33:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:33:51,336 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:33:51,336 INFO L287 CfgBuilder]: Removed 198 assume(true) statements. [2019-12-07 13:33:51,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:33:51 BoogieIcfgContainer [2019-12-07 13:33:51,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:33:51,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:33:51,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:33:51,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:33:51,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:33:50" (1/3) ... [2019-12-07 13:33:51,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e63ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:33:51, skipping insertion in model container [2019-12-07 13:33:51,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:50" (2/3) ... [2019-12-07 13:33:51,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e63ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:33:51, skipping insertion in model container [2019-12-07 13:33:51,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:33:51" (3/3) ... [2019-12-07 13:33:51,342 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product59.cil.c [2019-12-07 13:33:51,349 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:33:51,355 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 13:33:51,363 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 13:33:51,381 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:33:51,381 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:33:51,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:33:51,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:33:51,381 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:33:51,381 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:33:51,381 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:33:51,381 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:33:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-12-07 13:33:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 13:33:51,399 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:51,399 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 13:33:51,400 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:51,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:51,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1941296929, now seen corresponding path program 1 times [2019-12-07 13:33:51,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:51,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262294868] [2019-12-07 13:33:51,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:51,564 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:33:51,568 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:51,579 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 13:33:51,580 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:51,584 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 13:33:51,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262294868] [2019-12-07 13:33:51,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:51,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:33:51,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418426802] [2019-12-07 13:33:51,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:33:51,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:51,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:33:51,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:33:51,600 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 2 states. [2019-12-07 13:33:51,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:51,630 INFO L93 Difference]: Finished difference Result 275 states and 414 transitions. [2019-12-07 13:33:51,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:33:51,631 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 13:33:51,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:51,642 INFO L225 Difference]: With dead ends: 275 [2019-12-07 13:33:51,642 INFO L226 Difference]: Without dead ends: 137 [2019-12-07 13:33:51,646 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 13:33:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-12-07 13:33:51,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-12-07 13:33:51,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-12-07 13:33:51,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 199 transitions. [2019-12-07 13:33:51,684 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 199 transitions. Word has length 18 [2019-12-07 13:33:51,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:51,685 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 199 transitions. [2019-12-07 13:33:51,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:33:51,685 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 199 transitions. [2019-12-07 13:33:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 13:33:51,686 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:51,686 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 13:33:51,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:33:51,887 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:51,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:51,888 INFO L82 PathProgramCache]: Analyzing trace with hash 530190787, now seen corresponding path program 1 times [2019-12-07 13:33:51,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:51,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289744467] [2019-12-07 13:33:51,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:52,140 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:33:52,142 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:52,156 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 13:33:52,156 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:33:52,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289744467] [2019-12-07 13:33:52,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:52,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:33:52,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082191256] [2019-12-07 13:33:52,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:33:52,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:52,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:33:52,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:33:52,167 INFO L87 Difference]: Start difference. First operand 137 states and 199 transitions. Second operand 4 states. [2019-12-07 13:33:52,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:52,179 INFO L93 Difference]: Finished difference Result 137 states and 199 transitions. [2019-12-07 13:33:52,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:33:52,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 13:33:52,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:52,181 INFO L225 Difference]: With dead ends: 137 [2019-12-07 13:33:52,181 INFO L226 Difference]: Without dead ends: 57 [2019-12-07 13:33:52,182 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 13:33:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-12-07 13:33:52,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-12-07 13:33:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 13:33:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2019-12-07 13:33:52,187 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2019-12-07 13:33:52,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:52,187 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2019-12-07 13:33:52,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:33:52,187 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-12-07 13:33:52,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 13:33:52,188 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:52,188 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 13:33:52,388 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:33:52,389 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:52,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:52,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1901621695, now seen corresponding path program 1 times [2019-12-07 13:33:52,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:52,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488602156] [2019-12-07 13:33:52,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:52,503 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:33:52,505 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:52,513 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 13:33:52,513 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:52,520 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 13:33:52,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488602156] [2019-12-07 13:33:52,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:52,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 13:33:52,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656897036] [2019-12-07 13:33:52,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:33:52,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:52,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:33:52,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:33:52,522 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 4 states. [2019-12-07 13:33:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:52,541 INFO L93 Difference]: Finished difference Result 181 states and 268 transitions. [2019-12-07 13:33:52,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:33:52,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 13:33:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:52,543 INFO L225 Difference]: With dead ends: 181 [2019-12-07 13:33:52,543 INFO L226 Difference]: Without dead ends: 131 [2019-12-07 13:33:52,543 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 13:33:52,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-12-07 13:33:52,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 77. [2019-12-07 13:33:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 13:33:52,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2019-12-07 13:33:52,552 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 24 [2019-12-07 13:33:52,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:52,553 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2019-12-07 13:33:52,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:33:52,553 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2019-12-07 13:33:52,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 13:33:52,554 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:52,554 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:33:52,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:33:52,755 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:52,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:52,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1082042232, now seen corresponding path program 1 times [2019-12-07 13:33:52,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:52,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94350862] [2019-12-07 13:33:52,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:52,908 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:33:52,909 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:52,915 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 13:33:52,915 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:52,917 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 13:33:52,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94350862] [2019-12-07 13:33:52,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:52,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:33:52,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384165213] [2019-12-07 13:33:52,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:33:52,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:52,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:33:52,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:33:52,919 INFO L87 Difference]: Start difference. First operand 77 states and 113 transitions. Second operand 3 states. [2019-12-07 13:33:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:52,971 INFO L93 Difference]: Finished difference Result 169 states and 251 transitions. [2019-12-07 13:33:52,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:33:52,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 13:33:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:52,973 INFO L225 Difference]: With dead ends: 169 [2019-12-07 13:33:52,973 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 13:33:52,973 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 13:33:52,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 13:33:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-12-07 13:33:52,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 13:33:52,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2019-12-07 13:33:52,982 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 26 [2019-12-07 13:33:52,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:52,982 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2019-12-07 13:33:52,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:33:52,983 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2019-12-07 13:33:52,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 13:33:52,983 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:52,983 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] [2019-12-07 13:33:53,184 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:33:53,185 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:53,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:53,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2071837624, now seen corresponding path program 1 times [2019-12-07 13:33:53,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:53,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472033905] [2019-12-07 13:33:53,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:53,331 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:33:53,332 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:53,343 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 13:33:53,344 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:53,349 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 13:33:53,350 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472033905] [2019-12-07 13:33:53,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:53,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 13:33:53,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116454974] [2019-12-07 13:33:53,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:33:53,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:53,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:33:53,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:33:53,351 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand 5 states. [2019-12-07 13:33:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:53,457 INFO L93 Difference]: Finished difference Result 484 states and 705 transitions. [2019-12-07 13:33:53,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:33:53,458 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 13:33:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:53,460 INFO L225 Difference]: With dead ends: 484 [2019-12-07 13:33:53,460 INFO L226 Difference]: Without dead ends: 394 [2019-12-07 13:33:53,461 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:33:53,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-12-07 13:33:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 176. [2019-12-07 13:33:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-12-07 13:33:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 249 transitions. [2019-12-07 13:33:53,485 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 249 transitions. Word has length 27 [2019-12-07 13:33:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:53,486 INFO L462 AbstractCegarLoop]: Abstraction has 176 states and 249 transitions. [2019-12-07 13:33:53,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:33:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 249 transitions. [2019-12-07 13:33:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 13:33:53,487 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:53,487 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] [2019-12-07 13:33:53,688 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 13:33:53,689 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:53,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:53,690 INFO L82 PathProgramCache]: Analyzing trace with hash 788984512, now seen corresponding path program 1 times [2019-12-07 13:33:53,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:53,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314503335] [2019-12-07 13:33:53,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:53,831 INFO L264 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:33:53,833 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:53,857 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 13:33:53,857 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:53,860 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 13:33:53,861 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314503335] [2019-12-07 13:33:53,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:53,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 13:33:53,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681992337] [2019-12-07 13:33:53,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:33:53,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:53,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:33:53,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:33:53,862 INFO L87 Difference]: Start difference. First operand 176 states and 249 transitions. Second operand 5 states. [2019-12-07 13:33:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:54,013 INFO L93 Difference]: Finished difference Result 659 states and 937 transitions. [2019-12-07 13:33:54,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:33:54,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-12-07 13:33:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:54,015 INFO L225 Difference]: With dead ends: 659 [2019-12-07 13:33:54,015 INFO L226 Difference]: Without dead ends: 490 [2019-12-07 13:33:54,016 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:33:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-12-07 13:33:54,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 174. [2019-12-07 13:33:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-12-07 13:33:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 243 transitions. [2019-12-07 13:33:54,033 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 243 transitions. Word has length 28 [2019-12-07 13:33:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:54,033 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 243 transitions. [2019-12-07 13:33:54,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:33:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 243 transitions. [2019-12-07 13:33:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 13:33:54,035 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:54,035 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 13:33:54,236 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 13:33:54,237 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:54,238 INFO L82 PathProgramCache]: Analyzing trace with hash -782080822, now seen corresponding path program 1 times [2019-12-07 13:33:54,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:54,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051998347] [2019-12-07 13:33:54,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:54,452 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:33:54,454 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:54,461 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 13:33:54,461 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:54,470 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 13:33:54,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051998347] [2019-12-07 13:33:54,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:54,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 13:33:54,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546180250] [2019-12-07 13:33:54,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:33:54,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:54,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:33:54,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:33:54,471 INFO L87 Difference]: Start difference. First operand 174 states and 243 transitions. Second operand 6 states. [2019-12-07 13:33:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:54,530 INFO L93 Difference]: Finished difference Result 659 states and 923 transitions. [2019-12-07 13:33:54,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:33:54,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-12-07 13:33:54,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:54,533 INFO L225 Difference]: With dead ends: 659 [2019-12-07 13:33:54,533 INFO L226 Difference]: Without dead ends: 492 [2019-12-07 13:33:54,534 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 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 13:33:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-12-07 13:33:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 182. [2019-12-07 13:33:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-12-07 13:33:54,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 251 transitions. [2019-12-07 13:33:54,548 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 251 transitions. Word has length 36 [2019-12-07 13:33:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:54,548 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 251 transitions. [2019-12-07 13:33:54,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:33:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 251 transitions. [2019-12-07 13:33:54,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 13:33:54,549 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:54,549 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 13:33:54,749 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 13:33:54,750 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:54,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:54,751 INFO L82 PathProgramCache]: Analyzing trace with hash 229036428, now seen corresponding path program 1 times [2019-12-07 13:33:54,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:54,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271508454] [2019-12-07 13:33:54,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:54,905 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:33:54,907 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:54,919 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 13:33:54,919 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:54,922 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 13:33:54,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271508454] [2019-12-07 13:33:54,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:54,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 13:33:54,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90675202] [2019-12-07 13:33:54,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:33:54,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:54,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:33:54,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:33:54,923 INFO L87 Difference]: Start difference. First operand 182 states and 251 transitions. Second operand 5 states. [2019-12-07 13:33:54,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:54,984 INFO L93 Difference]: Finished difference Result 519 states and 713 transitions. [2019-12-07 13:33:54,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:33:54,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-12-07 13:33:54,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:54,987 INFO L225 Difference]: With dead ends: 519 [2019-12-07 13:33:54,987 INFO L226 Difference]: Without dead ends: 344 [2019-12-07 13:33:54,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 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 13:33:54,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2019-12-07 13:33:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 194. [2019-12-07 13:33:55,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-12-07 13:33:55,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 263 transitions. [2019-12-07 13:33:55,008 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 263 transitions. Word has length 36 [2019-12-07 13:33:55,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:55,008 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 263 transitions. [2019-12-07 13:33:55,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:33:55,009 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2019-12-07 13:33:55,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 13:33:55,009 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:55,010 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 13:33:55,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 13:33:55,210 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:55,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:55,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1803149176, now seen corresponding path program 1 times [2019-12-07 13:33:55,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:55,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656789036] [2019-12-07 13:33:55,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:55,332 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:33:55,333 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:55,339 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 13:33:55,339 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:55,348 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 13:33:55,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656789036] [2019-12-07 13:33:55,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:55,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 13:33:55,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356633084] [2019-12-07 13:33:55,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:33:55,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:55,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:33:55,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:33:55,349 INFO L87 Difference]: Start difference. First operand 194 states and 263 transitions. Second operand 4 states. [2019-12-07 13:33:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:55,403 INFO L93 Difference]: Finished difference Result 616 states and 839 transitions. [2019-12-07 13:33:55,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:33:55,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-07 13:33:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:55,405 INFO L225 Difference]: With dead ends: 616 [2019-12-07 13:33:55,405 INFO L226 Difference]: Without dead ends: 429 [2019-12-07 13:33:55,406 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 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 13:33:55,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2019-12-07 13:33:55,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 339. [2019-12-07 13:33:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2019-12-07 13:33:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 456 transitions. [2019-12-07 13:33:55,427 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 456 transitions. Word has length 36 [2019-12-07 13:33:55,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:55,427 INFO L462 AbstractCegarLoop]: Abstraction has 339 states and 456 transitions. [2019-12-07 13:33:55,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:33:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 456 transitions. [2019-12-07 13:33:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-07 13:33:55,428 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:55,428 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, 1] [2019-12-07 13:33:55,628 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 13:33:55,629 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:55,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:55,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1017339336, now seen corresponding path program 1 times [2019-12-07 13:33:55,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:55,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674790798] [2019-12-07 13:33:55,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:55,805 INFO L264 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:33:55,806 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:55,826 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 13:33:55,826 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:55,857 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 13:33:55,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674790798] [2019-12-07 13:33:55,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:55,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 13:33:55,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903678335] [2019-12-07 13:33:55,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 13:33:55,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:55,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 13:33:55,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:33:55,859 INFO L87 Difference]: Start difference. First operand 339 states and 456 transitions. Second operand 10 states. [2019-12-07 13:33:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:56,263 INFO L93 Difference]: Finished difference Result 1407 states and 1869 transitions. [2019-12-07 13:33:56,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 13:33:56,263 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2019-12-07 13:33:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:56,267 INFO L225 Difference]: With dead ends: 1407 [2019-12-07 13:33:56,267 INFO L226 Difference]: Without dead ends: 1075 [2019-12-07 13:33:56,268 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 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 13:33:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2019-12-07 13:33:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 339. [2019-12-07 13:33:56,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2019-12-07 13:33:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 448 transitions. [2019-12-07 13:33:56,304 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 448 transitions. Word has length 37 [2019-12-07 13:33:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:56,305 INFO L462 AbstractCegarLoop]: Abstraction has 339 states and 448 transitions. [2019-12-07 13:33:56,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 13:33:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 448 transitions. [2019-12-07 13:33:56,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 13:33:56,306 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:56,306 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:33:56,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 13:33:56,507 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:56,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:56,507 INFO L82 PathProgramCache]: Analyzing trace with hash -9909279, now seen corresponding path program 1 times [2019-12-07 13:33:56,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:56,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351406547] [2019-12-07 13:33:56,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/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 13:33:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:56,628 INFO L264 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:33:56,630 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:33:56,655 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:56,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:33:56,676 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:33:56,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351406547] [2019-12-07 13:33:56,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [654791380] [2019-12-07 13:33:56,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:33:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:56,797 INFO L264 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:33:56,799 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:56,815 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 13:33:56,815 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:56,820 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 13:33:56,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:33:56,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2019-12-07 13:33:56,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917374980] [2019-12-07 13:33:56,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:33:56,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:56,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:33:56,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:33:56,822 INFO L87 Difference]: Start difference. First operand 339 states and 448 transitions. Second operand 3 states. [2019-12-07 13:33:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:56,930 INFO L93 Difference]: Finished difference Result 559 states and 736 transitions. [2019-12-07 13:33:56,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:33:56,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-12-07 13:33:56,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:56,933 INFO L225 Difference]: With dead ends: 559 [2019-12-07 13:33:56,933 INFO L226 Difference]: Without dead ends: 557 [2019-12-07 13:33:56,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:33:56,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-12-07 13:33:56,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 391. [2019-12-07 13:33:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-12-07 13:33:56,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 525 transitions. [2019-12-07 13:33:56,980 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 525 transitions. Word has length 58 [2019-12-07 13:33:56,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:56,980 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 525 transitions. [2019-12-07 13:33:56,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:33:56,980 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 525 transitions. [2019-12-07 13:33:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-12-07 13:33:56,981 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:56,982 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:33:57,382 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2019-12-07 13:33:57,383 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:57,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:57,384 INFO L82 PathProgramCache]: Analyzing trace with hash -592648286, now seen corresponding path program 1 times [2019-12-07 13:33:57,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:57,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456608043] [2019-12-07 13:33:57,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 13:33:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:57,531 INFO L264 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:33:57,533 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-12-07 13:33:57,556 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:57,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:33:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-12-07 13:33:57,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456608043] [2019-12-07 13:33:57,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1624223023] [2019-12-07 13:33:57,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:33:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:57,771 INFO L264 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 13:33:57,772 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-12-07 13:33:57,784 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:57,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:33:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-12-07 13:33:57,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385039375] [2019-12-07 13:33:57,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:33:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:57,921 INFO L264 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 13:33:57,923 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:57,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:33:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:33:57,980 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:57,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:33:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 13:33:58,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2019-12-07 13:33:58,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5, 5, 8] total 14 [2019-12-07 13:33:58,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116251189] [2019-12-07 13:33:58,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:33:58,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:58,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:33:58,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-12-07 13:33:58,019 INFO L87 Difference]: Start difference. First operand 391 states and 525 transitions. Second operand 8 states. [2019-12-07 13:33:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:58,698 INFO L93 Difference]: Finished difference Result 3382 states and 4517 transitions. [2019-12-07 13:33:58,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 13:33:58,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2019-12-07 13:33:58,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:58,709 INFO L225 Difference]: With dead ends: 3382 [2019-12-07 13:33:58,709 INFO L226 Difference]: Without dead ends: 2998 [2019-12-07 13:33:58,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 481 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2019-12-07 13:33:58,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2019-12-07 13:33:58,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 785. [2019-12-07 13:33:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-12-07 13:33:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1098 transitions. [2019-12-07 13:33:58,776 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1098 transitions. Word has length 82 [2019-12-07 13:33:58,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:58,776 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 1098 transitions. [2019-12-07 13:33:58,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:33:58,777 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1098 transitions. [2019-12-07 13:33:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-12-07 13:33:58,778 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:58,778 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:33:59,379 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:33:59,380 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:59,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:59,381 INFO L82 PathProgramCache]: Analyzing trace with hash -987015072, now seen corresponding path program 1 times [2019-12-07 13:33:59,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:59,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57844628] [2019-12-07 13:33:59,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2019-12-07 13:33:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:33:59,553 INFO L264 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:33:59,554 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:33:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-12-07 13:33:59,572 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:33:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-12-07 13:33:59,589 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57844628] [2019-12-07 13:33:59,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:33:59,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 13:33:59,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998398490] [2019-12-07 13:33:59,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:33:59,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:33:59,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:33:59,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:33:59,590 INFO L87 Difference]: Start difference. First operand 785 states and 1098 transitions. Second operand 8 states. [2019-12-07 13:33:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:33:59,709 INFO L93 Difference]: Finished difference Result 1828 states and 2498 transitions. [2019-12-07 13:33:59,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:33:59,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2019-12-07 13:33:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:33:59,713 INFO L225 Difference]: With dead ends: 1828 [2019-12-07 13:33:59,713 INFO L226 Difference]: Without dead ends: 1050 [2019-12-07 13:33:59,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:33:59,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2019-12-07 13:33:59,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 466. [2019-12-07 13:33:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-12-07 13:33:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 631 transitions. [2019-12-07 13:33:59,775 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 631 transitions. Word has length 82 [2019-12-07 13:33:59,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:33:59,775 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 631 transitions. [2019-12-07 13:33:59,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:33:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 631 transitions. [2019-12-07 13:33:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-12-07 13:33:59,776 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:33:59,776 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:33:59,976 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2019-12-07 13:33:59,977 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:33:59,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:33:59,977 INFO L82 PathProgramCache]: Analyzing trace with hash 967457070, now seen corresponding path program 1 times [2019-12-07 13:33:59,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:33:59,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086811190] [2019-12-07 13:33:59,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2019-12-07 13:34:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:34:00,076 INFO L264 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:34:00,077 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:34:00,088 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-12-07 13:34:00,088 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:34:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-12-07 13:34:00,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086811190] [2019-12-07 13:34:00,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [503497599] [2019-12-07 13:34:00,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:34:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:34:00,204 INFO L264 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:34:00,205 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:34:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-12-07 13:34:00,209 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:34:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-12-07 13:34:00,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:34:00,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 6 [2019-12-07 13:34:00,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837844536] [2019-12-07 13:34:00,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:34:00,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:34:00,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:34:00,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:34:00,217 INFO L87 Difference]: Start difference. First operand 466 states and 631 transitions. Second operand 3 states. [2019-12-07 13:34:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:34:00,405 INFO L93 Difference]: Finished difference Result 769 states and 1026 transitions. [2019-12-07 13:34:00,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:34:00,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2019-12-07 13:34:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:34:00,406 INFO L225 Difference]: With dead ends: 769 [2019-12-07 13:34:00,406 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:34:00,406 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:34:00,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:34:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:34:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:34:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:34:00,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2019-12-07 13:34:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:34:00,407 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:34:00,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:34:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:34:00,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:34:00,808 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3,19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:34:00,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:34:01,960 WARN L192 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 314 DAG size of output: 298 [2019-12-07 13:34:02,176 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 169 [2019-12-07 13:34:02,488 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2019-12-07 13:34:04,121 WARN L192 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 383 DAG size of output: 362 [2019-12-07 13:34:04,871 WARN L192 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 288 [2019-12-07 13:34:05,432 WARN L192 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 186 [2019-12-07 13:34:06,386 WARN L192 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 291 [2019-12-07 13:34:07,658 WARN L192 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 377 DAG size of output: 353 [2019-12-07 13:34:09,288 WARN L192 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 362 DAG size of output: 342 [2019-12-07 13:34:09,467 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 155 [2019-12-07 13:34:11,562 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 385 DAG size of output: 361 [2019-12-07 13:34:16,500 WARN L192 SmtUtils]: Spent 4.94 s on a formula simplification. DAG size of input: 296 DAG size of output: 36 [2019-12-07 13:34:18,661 WARN L192 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 168 DAG size of output: 15 [2019-12-07 13:34:21,227 WARN L192 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 206 DAG size of output: 31 [2019-12-07 13:34:27,930 WARN L192 SmtUtils]: Spent 6.69 s on a formula simplification. DAG size of input: 360 DAG size of output: 26 [2019-12-07 13:34:28,178 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2019-12-07 13:34:32,587 WARN L192 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 286 DAG size of output: 36 [2019-12-07 13:34:32,902 WARN L192 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 31 [2019-12-07 13:34:33,102 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 22 [2019-12-07 13:34:35,696 WARN L192 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 185 DAG size of output: 14 [2019-12-07 13:34:36,017 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 28 [2019-12-07 13:34:41,130 WARN L192 SmtUtils]: Spent 5.11 s on a formula simplification. DAG size of input: 291 DAG size of output: 28 [2019-12-07 13:34:46,856 WARN L192 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 352 DAG size of output: 30 [2019-12-07 13:34:53,364 WARN L192 SmtUtils]: Spent 6.49 s on a formula simplification. DAG size of input: 341 DAG size of output: 24 [2019-12-07 13:34:55,161 WARN L192 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 154 DAG size of output: 29 [2019-12-07 13:35:02,847 WARN L192 SmtUtils]: Spent 7.68 s on a formula simplification. DAG size of input: 358 DAG size of output: 25 [2019-12-07 13:35:02,850 INFO L242 CegarLoopResult]: At program point L68-3(lines 67 86) the Hoare annotation is: false [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L242 CegarLoopResult]: At program point L367(lines 362 369) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) (bvadd ~systemActive~0 (_ bv4294967295 32))) (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967295 32))) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32))) [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point L334(lines 334 347) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point L104(lines 104 112) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point L104-1(lines 104 112) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point L104-2(lines 104 112) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point L104-3(lines 104 112) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point L104-4(lines 104 112) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L246 CegarLoopResult]: For program point L104-5(lines 104 112) no Hoare annotation was computed. [2019-12-07 13:35:02,850 INFO L242 CegarLoopResult]: At program point L271(lines 256 274) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (= ULTIMATE.start_isLowWaterLevel_~tmp~4 (_ bv0 32))) (.cse2 (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (or (not (= ~waterLevel~0 (_ bv1 32))) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)))) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~1 (_ bv4294967295 32))))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 .cse4 .cse5) (and .cse0 .cse1 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse2 .cse3 .cse4 .cse5))) [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L271-1(lines 256 274) the Hoare annotation is: false [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L271-2(lines 256 274) the Hoare annotation is: false [2019-12-07 13:35:02,851 INFO L246 CegarLoopResult]: For program point L932(lines 932 936) no Hoare annotation was computed. [2019-12-07 13:35:02,851 INFO L246 CegarLoopResult]: For program point L305(lines 304 351) no Hoare annotation was computed. [2019-12-07 13:35:02,851 INFO L246 CegarLoopResult]: For program point L306(lines 306 310) no Hoare annotation was computed. [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L75(lines 75 81) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse1) (and .cse0 .cse2 .cse1) (and (not (= ~systemActive~0 (_ bv0 32))) .cse2 .cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))))) [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L75-1(lines 75 81) the Hoare annotation is: false [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L75-2(lines 75 81) the Hoare annotation is: false [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L1000(lines 995 1003) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse2 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse3) (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3))) [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L1000-1(lines 995 1003) the Hoare annotation is: false [2019-12-07 13:35:02,851 INFO L242 CegarLoopResult]: At program point L1000-2(lines 995 1003) the Hoare annotation is: false [2019-12-07 13:35:02,851 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-12-07 13:35:02,851 INFO L246 CegarLoopResult]: For program point L340(lines 340 346) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L242 CegarLoopResult]: At program point L340-1(lines 68 74) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse5 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse3 .cse5 .cse2) (and .cse4 .cse1 .cse5 .cse2))) [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L44-1(line 44) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L44-2(line 44) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L378(lines 378 395) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L242 CegarLoopResult]: At program point L378-1(lines 1 1003) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~6)) (.cse3 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse2 (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32)) .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse3 .cse4 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (and .cse5 .cse1 .cse2 .cse6 .cse3 .cse4))) [2019-12-07 13:35:02,852 INFO L242 CegarLoopResult]: At program point L411-2(lines 411 425) the Hoare annotation is: false [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L378-2(lines 378 395) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L279(lines 279 285) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L242 CegarLoopResult]: At program point L378-3(lines 1 1003) the Hoare annotation is: false [2019-12-07 13:35:02,852 INFO L242 CegarLoopResult]: At program point L279-1(lines 279 285) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse1) (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1))) [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L246(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L378-4(lines 378 395) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L242 CegarLoopResult]: At program point L378-5(lines 1 1003) the Hoare annotation is: false [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L246-2(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L246-3(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,852 INFO L246 CegarLoopResult]: For program point L246-5(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-6(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-8(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-9(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-11(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-12(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-14(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-15(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L246-17(lines 246 250) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L908(lines 908 912) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L908-3(lines 908 912) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L908-6(lines 908 912) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L314(lines 314 320) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L242 CegarLoopResult]: At program point L314-1(lines 314 320) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~6)) (.cse3 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse2 (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32)) .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse3 .cse4 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (and .cse5 .cse1 .cse2 .cse6 .cse3 .cse4))) [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L415(lines 415 419) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L382(lines 382 392) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L415-1(lines 68 74) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L382-2(lines 382 392) no Hoare annotation was computed. [2019-12-07 13:35:02,853 INFO L246 CegarLoopResult]: For program point L382-4(lines 382 392) no Hoare annotation was computed. [2019-12-07 13:35:02,854 INFO L246 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2019-12-07 13:35:02,854 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:35:02,854 INFO L246 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2019-12-07 13:35:02,854 INFO L246 CegarLoopResult]: For program point L383-4(lines 383 389) no Hoare annotation was computed. [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945(lines 940 948) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-1(lines 940 948) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and .cse0 .cse1 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32)) .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 .cse2))) [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-2(lines 940 948) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (not (= ~systemActive~0 (_ bv0 32))) .cse0 .cse1 .cse2 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (and .cse0 .cse3 .cse1 .cse2) (and .cse3 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32)) .cse2))) [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-3(lines 940 948) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-4(lines 940 948) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-5(lines 940 948) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-6(lines 940 948) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-7(lines 940 948) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L945-8(lines 940 948) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L252(lines 237 255) the Hoare annotation is: false [2019-12-07 13:35:02,854 INFO L242 CegarLoopResult]: At program point L252-1(lines 237 255) the Hoare annotation is: (let ((.cse4 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse5 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6 .cse7 .cse3) (and .cse0 .cse1 .cse6 .cse2 .cse7 .cse3))) [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L252-2(lines 237 255) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L252-3(lines 237 255) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L252-4(lines 237 255) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L252-5(lines 237 255) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L352(lines 303 353) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L188(lines 181 191) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L188-1(lines 181 191) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and .cse0 .cse1 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32)) .cse2 .cse3 (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv1 32))) (and .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3))) [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L188-2(lines 181 191) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L188-3(lines 181 191) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L188-4(lines 181 191) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L188-5(lines 181 191) the Hoare annotation is: false [2019-12-07 13:35:02,855 INFO L246 CegarLoopResult]: For program point L486(lines 486 493) no Hoare annotation was computed. [2019-12-07 13:35:02,855 INFO L249 CegarLoopResult]: At program point L486-1(lines 486 493) the Hoare annotation is: true [2019-12-07 13:35:02,855 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L522(lines 1 1003) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) (bvadd ~systemActive~0 (_ bv4294967295 32))) (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967295 32))) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32))) [2019-12-07 13:35:02,855 INFO L246 CegarLoopResult]: For program point L324(lines 324 330) no Hoare annotation was computed. [2019-12-07 13:35:02,855 INFO L242 CegarLoopResult]: At program point L324-1(lines 324 330) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse5 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse2 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse0 .cse5 .cse2 .cse3) (and .cse4 .cse6 .cse1 .cse3))) [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L126(lines 126 143) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L126-1(lines 126 143) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L126-2(lines 126 143) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L985(lines 985 991) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L985-1(lines 985 991) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L985-2(lines 985 991) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L985-3(lines 985 991) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L985-4(lines 985 991) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L985-5(lines 985 991) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L920(lines 920 924) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L242 CegarLoopResult]: At program point L459(lines 455 461) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) (bvadd ~systemActive~0 (_ bv4294967295 32))) (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967295 32))) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32))) [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L163(lines 163 169) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L130(lines 130 138) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L163-2(lines 163 169) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L130-1(lines 130 138) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L130-2(lines 130 138) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L163-4(lines 163 169) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L163-6(lines 163 169) no Hoare annotation was computed. [2019-12-07 13:35:02,856 INFO L246 CegarLoopResult]: For program point L163-8(lines 163 169) no Hoare annotation was computed. [2019-12-07 13:35:02,857 INFO L246 CegarLoopResult]: For program point L163-10(lines 163 169) no Hoare annotation was computed. [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L197(lines 192 200) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L197-1(lines 192 200) the Hoare annotation is: false [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L197-2(lines 192 200) the Hoare annotation is: false [2019-12-07 13:35:02,857 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L990(lines 981 994) the Hoare annotation is: false [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L990-1(lines 981 994) the Hoare annotation is: (let ((.cse5 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse6 .cse3) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse6 .cse3 .cse4))) [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L990-2(lines 981 994) the Hoare annotation is: false [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L990-3(lines 981 994) the Hoare annotation is: false [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L990-4(lines 981 994) the Hoare annotation is: false [2019-12-07 13:35:02,857 INFO L242 CegarLoopResult]: At program point L990-5(lines 981 994) the Hoare annotation is: false [2019-12-07 13:35:02,857 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-12-07 13:35:02,857 INFO L249 CegarLoopResult]: At program point L495(lines 476 498) the Hoare annotation is: true [2019-12-07 13:35:02,857 INFO L246 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2019-12-07 13:35:02,857 INFO L246 CegarLoopResult]: For program point L265-2(lines 265 269) no Hoare annotation was computed. [2019-12-07 13:35:02,857 INFO L246 CegarLoopResult]: For program point L265-3(lines 265 269) no Hoare annotation was computed. [2019-12-07 13:35:02,857 INFO L246 CegarLoopResult]: For program point L100(lines 100 117) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L265-5(lines 265 269) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L100-1(lines 100 117) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L265-6(lines 265 269) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L100-2(lines 100 117) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L100-3(lines 100 117) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L265-8(lines 265 269) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L100-4(lines 100 117) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L100-5(lines 100 117) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L242 CegarLoopResult]: At program point L530(lines 525 533) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) (bvadd ~systemActive~0 (_ bv4294967295 32))) (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967295 32))) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32))) [2019-12-07 13:35:02,858 INFO L242 CegarLoopResult]: At program point L68(lines 67 86) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse1 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse5 .cse3 .cse2) (and .cse4 .cse5 .cse1 .cse2))) [2019-12-07 13:35:02,858 INFO L246 CegarLoopResult]: For program point L68-1(lines 68 74) no Hoare annotation was computed. [2019-12-07 13:35:02,858 INFO L242 CegarLoopResult]: At program point L68-2(lines 67 86) the Hoare annotation is: false [2019-12-07 13:35:02,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:35:02 BoogieIcfgContainer [2019-12-07 13:35:02,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:35:02,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:35:02,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:35:02,883 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:35:02,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:33:51" (3/4) ... [2019-12-07 13:35:02,885 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:35:02,898 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-12-07 13:35:02,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-12-07 13:35:02,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 13:35:02,901 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 13:35:02,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 13:35:02,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:35:02,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:35:02,923 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((((!(systemActive == 0bv32) && \result == 0bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((\result == 0bv32 && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) [2019-12-07 13:35:02,923 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((((!(systemActive == 0bv32) && \result == 0bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((\result == 0bv32 && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) [2019-12-07 13:35:02,924 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(systemActive == 0bv32) && \result == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || (((\result == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-12-07 13:35:02,924 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(systemActive == 0bv32) && !(waterLevel == 0bv32)) && \result == 0bv32) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) || ((((!(systemActive == 0bv32) && !(waterLevel == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) [2019-12-07 13:35:02,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32)) || ((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || ((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2019-12-07 13:35:02,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && 0bv32 == \result) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-12-07 13:35:02,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(systemActive == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && (!(waterLevel == 1bv32) || \result == 0bv32)) && splverifierCounter == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) || ((((((!(systemActive == 0bv32) && tmp == 0bv32) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (!(waterLevel == 1bv32) || \result == 0bv32)) && splverifierCounter == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) [2019-12-07 13:35:02,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && splverifierCounter == 0bv32)) || (((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && splverifierCounter == 0bv32) [2019-12-07 13:35:02,927 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && splverifierCounter == 0bv32) || (((((!(systemActive == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2019-12-07 13:35:02,927 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) || (((((!(systemActive == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2019-12-07 13:35:02,969 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1b899a82-d3e8-4205-b3e3-11b2ffdddf77/bin/utaipan/witness.graphml [2019-12-07 13:35:02,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:35:02,970 INFO L168 Benchmark]: Toolchain (without parser) took 72793.14 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 684.2 MB). Free memory was 948.4 MB in the beginning and 1.3 GB in the end (delta: -344.9 MB). Peak memory consumption was 339.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:02,970 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:35:02,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:02,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:02,971 INFO L168 Benchmark]: Boogie Preprocessor took 35.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:02,971 INFO L168 Benchmark]: RCFGBuilder took 671.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:02,971 INFO L168 Benchmark]: TraceAbstraction took 71544.19 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 553.1 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -295.8 MB). Peak memory consumption was 963.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:02,971 INFO L168 Benchmark]: Witness Printer took 86.76 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:02,973 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 404.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 671.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 71544.19 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 553.1 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -295.8 MB). Peak memory consumption was 963.2 MB. Max. memory is 11.5 GB. * Witness Printer took 86.76 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((((!(systemActive == 0bv32) && \result == 0bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((\result == 0bv32 && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && 0bv32 == \result) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && splverifierCounter == 0bv32)) || (((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(systemActive, 4294967295bv32)) && 0bv32 == ~bvadd64(waterLevel, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) || ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || (((!(systemActive == 0bv32) && methaneLevelCritical == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && splverifierCounter == 0bv32)) || (((!(systemActive == 0bv32) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && !~bvslt32(waterLevel, 2bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(systemActive, 4294967295bv32)) && 0bv32 == ~bvadd64(waterLevel, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 256]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && (!(waterLevel == 1bv32) || \result == 0bv32)) && splverifierCounter == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) || ((((((!(systemActive == 0bv32) && tmp == 0bv32) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (!(waterLevel == 1bv32) || \result == 0bv32)) && splverifierCounter == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 256]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 256]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((((!(systemActive == 0bv32) && \result == 0bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((\result == 0bv32 && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && 0bv32 == tmp) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) || (((((!(systemActive == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 303]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 995]: Loop Invariant Derived loop invariant: ((((!(systemActive == 0bv32) && !(waterLevel == 0bv32)) && \result == 0bv32) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) || ((((!(systemActive == 0bv32) && !(waterLevel == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) || ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 995]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 995]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: (((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && splverifierCounter == 0bv32) || (((((!(systemActive == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 362]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(systemActive, 4294967295bv32)) && 0bv32 == ~bvadd64(waterLevel, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 476]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: (((((!(systemActive == 0bv32) && \result == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || (((\result == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (((((!(systemActive == 0bv32) && methaneLevelCritical == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && splverifierCounter == 0bv32)) || (((!(systemActive == 0bv32) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && !~bvslt32(waterLevel, 2bv32)) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(systemActive, 4294967295bv32)) && 0bv32 == ~bvadd64(waterLevel, 4294967295bv32)) && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) || ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || (((!(systemActive == 0bv32) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32)) || ((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || ((((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) || ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || (((!(systemActive == 0bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 0bv32) && splverifierCounter == 0bv32)) || (((!(systemActive == 0bv32) && !(waterLevel == 0bv32)) && 0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32)) && splverifierCounter == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 141 locations, 3 error locations. Result: SAFE, OverallTime: 9.4s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 62.0s, HoareTripleCheckerStatistics: 1790 SDtfs, 3213 SDslu, 4341 SDs, 0 SdLazy, 473 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1812 GetRequests, 1719 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=785occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 4839 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 57 PreInvPairs, 183 NumberOfFragments, 940 HoareAnnotationTreeSize, 57 FomulaSimplifications, 52796659 FormulaSimplificationTreeSizeReduction, 10.7s HoareSimplificationTime, 57 FomulaSimplificationsInter, 36936274 FormulaSimplificationTreeSizeReductionInter, 51.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1758 ConstructedInterpolants, 0 QuantifiedInterpolants, 236505 SizeOfPredicates, 43 NumberOfNonLiveVariables, 4023 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 36 InterpolantComputations, 27 PerfectInterpolantSequences, 636/684 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 correct! Received shutdown request...