./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.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_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 59866f864e0ec5bf7736536ea91554085144fb1d ...................................................................................................................................... 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_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 59866f864e0ec5bf7736536ea91554085144fb1d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 19:09:00,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:09:00,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:09:00,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:09:00,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:09:00,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:09:00,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:09:00,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:09:00,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:09:00,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:09:00,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:09:00,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:09:00,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:09:00,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:09:00,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:09:00,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:09:00,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:09:00,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:09:00,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:09:00,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:09:00,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:09:00,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:09:00,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:09:00,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:09:00,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:09:00,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:09:00,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:09:00,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:09:00,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:09:00,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:09:00,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:09:00,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:09:00,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:09:00,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:09:00,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:09:00,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:09:00,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:09:00,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:09:00,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:09:00,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:09:00,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:09:00,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:09:00,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:09:00,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:09:00,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:09:00,320 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:09:00,321 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:09:00,321 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:09:00,321 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:09:00,322 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:09:00,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:09:00,322 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:09:00,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:09:00,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:09:00,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:09:00,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:09:00,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:09:00,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:09:00,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:09:00,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:09:00,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:09:00,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:09:00,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:09:00,324 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:09:00,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:09:00,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:09:00,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:09:00,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:09:00,325 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_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 -> 59866f864e0ec5bf7736536ea91554085144fb1d [2019-12-07 19:09:00,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:09:00,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:09:00,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:09:00,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:09:00,439 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:09:00,440 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2019-12-07 19:09:00,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/e32bbc6f7/6124e16b55e14d04b153995628f007b6/FLAG9a369697e [2019-12-07 19:09:00,934 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:09:00,935 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2019-12-07 19:09:00,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/e32bbc6f7/6124e16b55e14d04b153995628f007b6/FLAG9a369697e [2019-12-07 19:09:00,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/e32bbc6f7/6124e16b55e14d04b153995628f007b6 [2019-12-07 19:09:00,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:09:00,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:09:00,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:09:00,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:09:00,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:09:00,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:09:00" (1/1) ... [2019-12-07 19:09:00,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:00, skipping insertion in model container [2019-12-07 19:09:00,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:09:00" (1/1) ... [2019-12-07 19:09:00,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:09:00,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:09:01,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:09:01,216 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 19:09:01,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a565353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:01, skipping insertion in model container [2019-12-07 19:09:01,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:09:01,217 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 19:09:01,219 INFO L168 Benchmark]: Toolchain (without parser) took 263.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:01,220 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:09:01,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:01,222 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 244]: 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 19:09:02,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:09:02,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:09:02,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:09:02,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:09:02,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:09:02,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:09:02,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:09:02,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:09:02,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:09:02,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:09:02,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:09:02,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:09:02,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:09:02,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:09:02,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:09:02,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:09:02,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:09:02,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:09:02,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:09:02,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:09:02,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:09:02,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:09:02,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:09:02,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:09:02,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:09:02,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:09:02,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:09:02,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:09:02,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:09:02,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:09:02,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:09:02,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:09:02,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:09:02,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:09:02,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:09:02,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:09:02,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:09:02,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:09:02,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:09:02,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:09:02,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:09:02,409 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:09:02,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:09:02,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:09:02,410 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:09:02,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:09:02,410 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:09:02,410 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:09:02,411 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:09:02,411 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:09:02,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:09:02,411 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:09:02,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:09:02,412 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:09:02,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:09:02,413 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:09:02,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:09:02,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:09:02,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:09:02,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:09:02,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:09:02,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:09:02,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:09:02,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:09:02,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:09:02,414 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:09:02,414 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:09:02,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:09:02,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:09:02,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:09:02,415 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_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 -> 59866f864e0ec5bf7736536ea91554085144fb1d [2019-12-07 19:09:02,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:09:02,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:09:02,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:09:02,596 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:09:02,597 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:09:02,597 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2019-12-07 19:09:02,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/e780131c1/db215e80e0a04c8791af2d84f137d5de/FLAGaa6f88ec4 [2019-12-07 19:09:03,095 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:09:03,095 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2019-12-07 19:09:03,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/e780131c1/db215e80e0a04c8791af2d84f137d5de/FLAGaa6f88ec4 [2019-12-07 19:09:03,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/data/e780131c1/db215e80e0a04c8791af2d84f137d5de [2019-12-07 19:09:03,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:09:03,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:09:03,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:09:03,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:09:03,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:09:03,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:09:03" (1/1) ... [2019-12-07 19:09:03,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:03, skipping insertion in model container [2019-12-07 19:09:03,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:09:03" (1/1) ... [2019-12-07 19:09:03,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:09:03,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:09:03,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:09:03,894 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 19:09:03,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:09:03,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:09:03,943 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:09:03,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:09:04,002 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:09:04,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04 WrapperNode [2019-12-07 19:09:04,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:09:04,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:09:04,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:09:04,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:09:04,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:09:04,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:09:04,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:09:04,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:09:04,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... [2019-12-07 19:09:04,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:09:04,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:09:04,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:09:04,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:09:04,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:09:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 19:09:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:09:04,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:09:04,623 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:09:04,623 INFO L287 CfgBuilder]: Removed 114 assume(true) statements. [2019-12-07 19:09:04,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:09:04 BoogieIcfgContainer [2019-12-07 19:09:04,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:09:04,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:09:04,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:09:04,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:09:04,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:09:03" (1/3) ... [2019-12-07 19:09:04,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a02dec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:09:04, skipping insertion in model container [2019-12-07 19:09:04,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:09:04" (2/3) ... [2019-12-07 19:09:04,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a02dec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:09:04, skipping insertion in model container [2019-12-07 19:09:04,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:09:04" (3/3) ... [2019-12-07 19:09:04,632 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2019-12-07 19:09:04,641 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:09:04,647 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 19:09:04,657 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 19:09:04,674 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:09:04,674 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:09:04,674 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:09:04,674 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:09:04,674 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:09:04,674 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:09:04,674 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:09:04,674 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:09:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-12-07 19:09:04,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 19:09:04,690 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:04,691 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:04,691 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:04,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:04,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1847621448, now seen corresponding path program 1 times [2019-12-07 19:09:04,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:04,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999381966] [2019-12-07 19:09:04,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:04,842 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:09:04,846 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:04,856 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 19:09:04,856 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:04,859 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 19:09:04,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999381966] [2019-12-07 19:09:04,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:09:04,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:09:04,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144502425] [2019-12-07 19:09:04,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:09:04,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:04,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:09:04,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:09:04,875 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-12-07 19:09:04,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:04,897 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2019-12-07 19:09:04,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:09:04,898 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 19:09:04,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:04,909 INFO L225 Difference]: With dead ends: 168 [2019-12-07 19:09:04,909 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 19:09:04,912 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:09:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 19:09:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-12-07 19:09:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-07 19:09:04,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-12-07 19:09:04,944 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2019-12-07 19:09:04,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:04,944 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-12-07 19:09:04,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:09:04,944 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-12-07 19:09:04,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 19:09:04,945 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:04,945 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:05,145 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:09:05,146 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:05,147 INFO L82 PathProgramCache]: Analyzing trace with hash 800864551, now seen corresponding path program 1 times [2019-12-07 19:09:05,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:05,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407989075] [2019-12-07 19:09:05,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:05,281 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:09:05,283 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:05,297 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 19:09:05,297 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:05,306 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 19:09:05,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407989075] [2019-12-07 19:09:05,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:09:05,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 19:09:05,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102038168] [2019-12-07 19:09:05,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:09:05,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:05,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:09:05,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:09:05,309 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 4 states. [2019-12-07 19:09:05,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:05,319 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-12-07 19:09:05,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:09:05,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 19:09:05,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:05,320 INFO L225 Difference]: With dead ends: 83 [2019-12-07 19:09:05,320 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 19:09:05,321 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:09:05,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 19:09:05,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 19:09:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 19:09:05,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-12-07 19:09:05,325 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2019-12-07 19:09:05,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:05,326 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-12-07 19:09:05,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:09:05,326 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-12-07 19:09:05,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 19:09:05,326 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:05,327 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:05,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:09:05,527 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:05,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:05,528 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2019-12-07 19:09:05,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:05,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649369198] [2019-12-07 19:09:05,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:05,638 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:09:05,640 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:05,649 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 19:09:05,649 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:05,657 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 19:09:05,658 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649369198] [2019-12-07 19:09:05,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:09:05,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:09:05,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829867415] [2019-12-07 19:09:05,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:09:05,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:05,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:09:05,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:09:05,660 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 4 states. [2019-12-07 19:09:05,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:05,668 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2019-12-07 19:09:05,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:09:05,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 19:09:05,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:05,670 INFO L225 Difference]: With dead ends: 68 [2019-12-07 19:09:05,670 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 19:09:05,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:09:05,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 19:09:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 19:09:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 19:09:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2019-12-07 19:09:05,676 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2019-12-07 19:09:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:05,677 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2019-12-07 19:09:05,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:09:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2019-12-07 19:09:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 19:09:05,678 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:05,678 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:05,878 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 19:09:05,879 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:05,879 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2019-12-07 19:09:05,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:05,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500337998] [2019-12-07 19:09:05,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:05,983 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:09:05,984 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:05,989 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 19:09:05,989 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:05,991 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 19:09:05,992 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500337998] [2019-12-07 19:09:05,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:09:05,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 19:09:05,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566686066] [2019-12-07 19:09:05,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:09:05,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:05,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:09:05,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:09:05,993 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2019-12-07 19:09:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:06,045 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-12-07 19:09:06,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:09:06,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 19:09:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:06,047 INFO L225 Difference]: With dead ends: 89 [2019-12-07 19:09:06,047 INFO L226 Difference]: Without dead ends: 58 [2019-12-07 19:09:06,047 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:09:06,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-07 19:09:06,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-12-07 19:09:06,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 19:09:06,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-12-07 19:09:06,055 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2019-12-07 19:09:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:06,055 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-12-07 19:09:06,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:09:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-12-07 19:09:06,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 19:09:06,057 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:06,057 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:06,257 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 19:09:06,258 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:06,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2019-12-07 19:09:06,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:06,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045878860] [2019-12-07 19:09:06,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:06,438 INFO L264 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:09:06,439 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:06,454 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 19:09:06,454 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:06,478 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 19:09:06,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045878860] [2019-12-07 19:09:06,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:09:06,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 19:09:06,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773704531] [2019-12-07 19:09:06,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 19:09:06,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:06,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 19:09:06,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 19:09:06,480 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 8 states. [2019-12-07 19:09:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:06,676 INFO L93 Difference]: Finished difference Result 390 states and 569 transitions. [2019-12-07 19:09:06,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 19:09:06,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-12-07 19:09:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:06,680 INFO L225 Difference]: With dead ends: 390 [2019-12-07 19:09:06,680 INFO L226 Difference]: Without dead ends: 340 [2019-12-07 19:09:06,681 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 19:09:06,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-12-07 19:09:06,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2019-12-07 19:09:06,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 19:09:06,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2019-12-07 19:09:06,705 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 29 [2019-12-07 19:09:06,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:06,705 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2019-12-07 19:09:06,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 19:09:06,706 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2019-12-07 19:09:06,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 19:09:06,708 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:06,708 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:06,908 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 19:09:06,909 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:06,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:06,910 INFO L82 PathProgramCache]: Analyzing trace with hash -130752981, now seen corresponding path program 1 times [2019-12-07 19:09:06,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:06,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802711270] [2019-12-07 19:09:06,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:07,040 INFO L264 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:09:07,042 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 19:09:07,065 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:07,069 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 19:09:07,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802711270] [2019-12-07 19:09:07,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:09:07,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 19:09:07,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627880275] [2019-12-07 19:09:07,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:09:07,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:07,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:09:07,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:09:07,071 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand 5 states. [2019-12-07 19:09:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:07,109 INFO L93 Difference]: Finished difference Result 388 states and 531 transitions. [2019-12-07 19:09:07,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:09:07,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-12-07 19:09:07,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:07,111 INFO L225 Difference]: With dead ends: 388 [2019-12-07 19:09:07,111 INFO L226 Difference]: Without dead ends: 254 [2019-12-07 19:09:07,112 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 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 19:09:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-07 19:09:07,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 149. [2019-12-07 19:09:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-12-07 19:09:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2019-12-07 19:09:07,124 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 47 [2019-12-07 19:09:07,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:07,124 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2019-12-07 19:09:07,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:09:07,124 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2019-12-07 19:09:07,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 19:09:07,125 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:07,125 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:07,326 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 19:09:07,326 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:07,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:07,327 INFO L82 PathProgramCache]: Analyzing trace with hash -640226071, now seen corresponding path program 1 times [2019-12-07 19:09:07,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:07,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111211629] [2019-12-07 19:09:07,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:07,467 INFO L264 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:09:07,468 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:07,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 19:09:07,477 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 19:09:07,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111211629] [2019-12-07 19:09:07,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:09:07,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 19:09:07,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897841282] [2019-12-07 19:09:07,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:09:07,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:07,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:09:07,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:09:07,488 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand 6 states. [2019-12-07 19:09:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:07,519 INFO L93 Difference]: Finished difference Result 337 states and 458 transitions. [2019-12-07 19:09:07,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 19:09:07,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-12-07 19:09:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:07,520 INFO L225 Difference]: With dead ends: 337 [2019-12-07 19:09:07,520 INFO L226 Difference]: Without dead ends: 194 [2019-12-07 19:09:07,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 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 19:09:07,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-12-07 19:09:07,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2019-12-07 19:09:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-07 19:09:07,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2019-12-07 19:09:07,529 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 47 [2019-12-07 19:09:07,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:07,530 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2019-12-07 19:09:07,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 19:09:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2019-12-07 19:09:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 19:09:07,530 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:07,531 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:07,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 19:09:07,732 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:07,732 INFO L82 PathProgramCache]: Analyzing trace with hash -445753367, now seen corresponding path program 1 times [2019-12-07 19:09:07,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:07,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106669517] [2019-12-07 19:09:07,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:07,852 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 19:09:07,853 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 19:09:07,873 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:07,900 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 19:09:07,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106669517] [2019-12-07 19:09:07,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [739548730] [2019-12-07 19:09:07,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 19:09:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:07,997 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 19:09:07,998 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 19:09:08,009 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 19:09:08,015 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569584163] [2019-12-07 19:09:08,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:09:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:09:08,103 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 19:09:08,105 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:09:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 19:09:08,117 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:09:08,125 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 19:09:08,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 19:09:08,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 19:09:08,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821507233] [2019-12-07 19:09:08,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 19:09:08,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:09:08,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 19:09:08,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 19:09:08,127 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand 10 states. [2019-12-07 19:09:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:09:08,624 INFO L93 Difference]: Finished difference Result 751 states and 1038 transitions. [2019-12-07 19:09:08,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 19:09:08,624 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2019-12-07 19:09:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:09:08,627 INFO L225 Difference]: With dead ends: 751 [2019-12-07 19:09:08,627 INFO L226 Difference]: Without dead ends: 657 [2019-12-07 19:09:08,628 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 270 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 19:09:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2019-12-07 19:09:08,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 223. [2019-12-07 19:09:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-12-07 19:09:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 304 transitions. [2019-12-07 19:09:08,644 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 304 transitions. Word has length 48 [2019-12-07 19:09:08,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:09:08,644 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 304 transitions. [2019-12-07 19:09:08,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 19:09:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 304 transitions. [2019-12-07 19:09:08,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 19:09:08,645 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:09:08,645 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:09:09,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:09:09,247 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:09:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:09:09,248 INFO L82 PathProgramCache]: Analyzing trace with hash -2129580319, now seen corresponding path program 2 times [2019-12-07 19:09:09,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:09:09,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682172096] [2019-12-07 19:09:09,249 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/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 19:09:09,960 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 19:09:09,960 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 19:09:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:09:10,753 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 19:09:10,753 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:09:10,954 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 19:09:11,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:09:11 BoogieIcfgContainer [2019-12-07 19:09:11,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:09:11,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:09:11,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:09:11,072 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:09:11,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:09:04" (3/4) ... [2019-12-07 19:09:11,074 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 19:09:11,171 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9a24e189-95f0-4ece-b184-a4130fe69cfe/bin/utaipan/witness.graphml [2019-12-07 19:09:11,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:09:11,172 INFO L168 Benchmark]: Toolchain (without parser) took 7550.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 953.7 MB in the beginning and 799.1 MB in the end (delta: 154.6 MB). Peak memory consumption was 341.3 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:11,172 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:09:11,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -117.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:11,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:09:11,173 INFO L168 Benchmark]: Boogie Preprocessor took 28.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:09:11,173 INFO L168 Benchmark]: RCFGBuilder took 551.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:11,174 INFO L168 Benchmark]: TraceAbstraction took 6445.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 994.4 MB in the beginning and 829.4 MB in the end (delta: 165.0 MB). Peak memory consumption was 248.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:11,174 INFO L168 Benchmark]: Witness Printer took 99.62 ms. Allocated memory is still 1.2 GB. Free memory was 829.4 MB in the beginning and 799.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:11,175 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -117.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 551.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6445.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 994.4 MB in the beginning and 829.4 MB in the end (delta: 165.0 MB). Peak memory consumption was 248.4 MB. Max. memory is 11.5 GB. * Witness Printer took 99.62 ms. Allocated memory is still 1.2 GB. Free memory was 829.4 MB in the beginning and 799.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 211]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L822] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L198] int retValue_acc ; [L201] retValue_acc = 1 [L202] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L585] int splverifierCounter ; [L586] int tmp ; [L587] int tmp___0 ; [L588] int tmp___1 ; [L589] int tmp___2 ; [L592] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L659] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L691] COND TRUE ! pumpRunning [L803] int retValue_acc ; [L804] int tmp ; [L805] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] tmp = isHighWaterSensorDry() [L811] COND FALSE !(\read(tmp)) [L814] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] retValue_acc = tmp___0 [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) [L722] int tmp ; [L747] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] retValue_acc = isMethaneLevelCritical() [L753] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp = isMethaneAlarm() [L728] COND FALSE !(\read(tmp)) [L716] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L144] int tmp ; [L145] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L594] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L596] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L659] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L691] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L144] int tmp ; [L145] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L659] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L691] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L144] int tmp ; [L145] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L149] tmp = getWaterLevel() [L151] COND TRUE tmp == 0 [L758] int retValue_acc ; [L761] retValue_acc = pumpRunning [L762] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] tmp___0 = isPumpRunning() [L155] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L211] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 632 SDtfs, 1492 SDslu, 1329 SDs, 0 SdLazy, 275 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 702 GetRequests, 643 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 812 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 77701 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2002 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 86/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...