./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.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_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 c4608a8062f27af1fb75c6b614ba3695c40f562a ...................................................................................................................................... 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_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 c4608a8062f27af1fb75c6b614ba3695c40f562a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:02:55,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:02:55,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:02:55,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:02:55,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:02:55,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:02:55,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:02:55,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:02:55,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:02:55,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:02:55,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:02:55,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:02:55,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:02:55,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:02:55,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:02:55,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:02:55,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:02:55,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:02:55,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:02:55,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:02:55,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:02:55,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:02:55,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:02:55,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:02:55,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:02:55,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:02:55,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:02:55,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:02:55,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:02:55,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:02:55,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:02:55,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:02:55,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:02:55,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:02:55,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:02:55,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:02:55,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:02:55,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:02:55,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:02:55,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:02:55,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:02:55,265 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:02:55,277 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:02:55,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:02:55,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:02:55,278 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:02:55,278 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:02:55,278 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:02:55,279 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:02:55,279 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:02:55,279 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:02:55,279 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:02:55,279 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:02:55,279 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:02:55,279 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:02:55,280 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:02:55,280 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:02:55,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:02:55,280 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:02:55,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:02:55,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:02:55,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:02:55,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:02:55,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:02:55,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:02:55,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:02:55,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:02:55,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:02:55,282 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:02:55,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:02:55,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:02:55,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:02:55,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:02:55,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:02:55,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:02:55,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:02:55,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:02:55,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:02:55,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:02:55,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:02:55,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:02:55,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:02:55,285 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_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 -> c4608a8062f27af1fb75c6b614ba3695c40f562a [2019-12-07 15:02:55,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:02:55,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:02:55,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:02:55,395 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:02:55,395 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:02:55,396 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2019-12-07 15:02:55,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/5b7d58608/8693efbe9bc44d3e82a94f53536f11c0/FLAGe976d66e6 [2019-12-07 15:02:55,878 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:02:55,878 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2019-12-07 15:02:55,885 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/5b7d58608/8693efbe9bc44d3e82a94f53536f11c0/FLAGe976d66e6 [2019-12-07 15:02:55,894 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/5b7d58608/8693efbe9bc44d3e82a94f53536f11c0 [2019-12-07 15:02:55,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:02:55,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:02:55,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:55,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:02:55,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:02:55,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:55" (1/1) ... [2019-12-07 15:02:55,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:55, skipping insertion in model container [2019-12-07 15:02:55,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:55" (1/1) ... [2019-12-07 15:02:55,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:02:55,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:02:56,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:56,149 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 15:02:56,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2875f99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:56, skipping insertion in model container [2019-12-07 15:02:56,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:56,149 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 15:02:56,151 INFO L168 Benchmark]: Toolchain (without parser) took 253.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:02:56,152 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:02:56,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:02:56,153 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 301]: 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 15:02:57,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:02:57,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:02:57,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:02:57,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:02:57,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:02:57,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:02:57,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:02:57,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:02:57,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:02:57,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:02:57,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:02:57,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:02:57,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:02:57,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:02:57,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:02:57,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:02:57,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:02:57,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:02:57,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:02:57,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:02:57,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:02:57,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:02:57,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:02:57,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:02:57,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:02:57,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:02:57,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:02:57,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:02:57,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:02:57,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:02:57,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:02:57,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:02:57,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:02:57,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:02:57,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:02:57,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:02:57,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:02:57,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:02:57,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:02:57,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:02:57,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 15:02:57,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:02:57,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:02:57,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:02:57,382 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:02:57,382 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:02:57,382 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:02:57,383 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:02:57,383 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:02:57,383 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:02:57,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:02:57,383 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:02:57,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:02:57,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:02:57,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:02:57,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:02:57,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:02:57,384 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:02:57,385 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:02:57,385 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:02:57,385 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:02:57,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:02:57,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:02:57,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:02:57,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:02:57,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:02:57,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:02:57,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:02:57,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:02:57,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:02:57,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:02:57,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:02:57,386 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:02:57,387 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:02:57,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:02:57,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:02:57,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:02:57,387 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_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 -> c4608a8062f27af1fb75c6b614ba3695c40f562a [2019-12-07 15:02:57,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:02:57,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:02:57,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:02:57,563 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:02:57,563 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:02:57,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2019-12-07 15:02:57,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/e97abe4fb/36cdea299e914aa4834ae55cd65240f5/FLAG114466fb2 [2019-12-07 15:02:58,092 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:02:58,093 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2019-12-07 15:02:58,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/e97abe4fb/36cdea299e914aa4834ae55cd65240f5/FLAG114466fb2 [2019-12-07 15:02:58,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/data/e97abe4fb/36cdea299e914aa4834ae55cd65240f5 [2019-12-07 15:02:58,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:02:58,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:02:58,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:58,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:02:58,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:02:58,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58, skipping insertion in model container [2019-12-07 15:02:58,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:02:58,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:02:58,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:58,367 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:02:58,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:02:58,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:58,416 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:02:58,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:58,478 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:02:58,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58 WrapperNode [2019-12-07 15:02:58,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:58,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:02:58,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:02:58,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:02:58,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:02:58,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:02:58,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:02:58,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:02:58,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... [2019-12-07 15:02:58,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:02:58,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:02:58,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:02:58,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:02:58,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 15:02:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:02:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 15:02:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:02:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:02:59,047 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:02:59,047 INFO L287 CfgBuilder]: Removed 104 assume(true) statements. [2019-12-07 15:02:59,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:02:59 BoogieIcfgContainer [2019-12-07 15:02:59,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:02:59,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:02:59,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:02:59,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:02:59,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:02:58" (1/3) ... [2019-12-07 15:02:59,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfb4962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:02:59, skipping insertion in model container [2019-12-07 15:02:59,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:58" (2/3) ... [2019-12-07 15:02:59,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfb4962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:02:59, skipping insertion in model container [2019-12-07 15:02:59,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:02:59" (3/3) ... [2019-12-07 15:02:59,053 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2019-12-07 15:02:59,060 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:02:59,065 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 15:02:59,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 15:02:59,090 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:02:59,090 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:02:59,090 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:02:59,090 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:02:59,090 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:02:59,090 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:02:59,091 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:02:59,091 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:02:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2019-12-07 15:02:59,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 15:02:59,106 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:02:59,107 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:02:59,107 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:02:59,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:02:59,111 INFO L82 PathProgramCache]: Analyzing trace with hash 928665618, now seen corresponding path program 1 times [2019-12-07 15:02:59,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:02:59,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755166937] [2019-12-07 15:02:59,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 15:02:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:02:59,254 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:02:59,258 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:02:59,268 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 15:02:59,268 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:02:59,272 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 15:02:59,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755166937] [2019-12-07 15:02:59,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:02:59,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:02:59,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060621889] [2019-12-07 15:02:59,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:02:59,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:02:59,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:02:59,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:02:59,287 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2019-12-07 15:02:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:02:59,306 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2019-12-07 15:02:59,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:02:59,307 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 15:02:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:02:59,315 INFO L225 Difference]: With dead ends: 156 [2019-12-07 15:02:59,315 INFO L226 Difference]: Without dead ends: 77 [2019-12-07 15:02:59,318 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:02:59,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-12-07 15:02:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-12-07 15:02:59,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 15:02:59,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2019-12-07 15:02:59,346 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2019-12-07 15:02:59,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:02:59,346 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-12-07 15:02:59,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:02:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2019-12-07 15:02:59,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 15:02:59,347 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:02:59,348 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:02:59,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:02:59,549 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:02:59,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:02:59,550 INFO L82 PathProgramCache]: Analyzing trace with hash 674916017, now seen corresponding path program 1 times [2019-12-07 15:02:59,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:02:59,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739675343] [2019-12-07 15:02:59,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 15:02:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:02:59,726 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:02:59,727 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:02:59,741 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 15:02:59,741 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:02:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:02:59,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739675343] [2019-12-07 15:02:59,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:02:59,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 15:02:59,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036569636] [2019-12-07 15:02:59,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:02:59,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:02:59,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:02:59,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:02:59,753 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 4 states. [2019-12-07 15:02:59,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:02:59,763 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2019-12-07 15:02:59,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:02:59,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 15:02:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:02:59,764 INFO L225 Difference]: With dead ends: 77 [2019-12-07 15:02:59,764 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 15:02:59,765 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:02:59,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 15:02:59,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-07 15:02:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 15:02:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2019-12-07 15:02:59,769 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2019-12-07 15:02:59,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:02:59,769 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2019-12-07 15:02:59,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:02:59,770 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2019-12-07 15:02:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 15:02:59,770 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:02:59,770 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:02:59,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:02:59,972 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:02:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:02:59,973 INFO L82 PathProgramCache]: Analyzing trace with hash 492093711, now seen corresponding path program 1 times [2019-12-07 15:02:59,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:02:59,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848347122] [2019-12-07 15:02:59,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 15:03:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:00,166 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:03:00,167 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:00,174 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 15:03:00,174 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:00,180 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 15:03:00,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848347122] [2019-12-07 15:03:00,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:00,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 15:03:00,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139348297] [2019-12-07 15:03:00,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:03:00,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:00,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:03:00,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:03:00,182 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 4 states. [2019-12-07 15:03:00,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:00,229 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2019-12-07 15:03:00,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:03:00,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 15:03:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:00,231 INFO L225 Difference]: With dead ends: 64 [2019-12-07 15:03:00,231 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 15:03:00,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:03:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 15:03:00,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-07 15:03:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 15:03:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2019-12-07 15:03:00,238 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2019-12-07 15:03:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:00,238 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2019-12-07 15:03:00,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:03:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2019-12-07 15:03:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 15:03:00,239 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:00,239 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:00,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:03:00,440 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:00,441 INFO L82 PathProgramCache]: Analyzing trace with hash -147058101, now seen corresponding path program 1 times [2019-12-07 15:03:00,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:00,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458750609] [2019-12-07 15:03:00,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 15:03:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:00,621 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:03:00,622 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:00,638 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 15:03:00,639 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:00,663 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 15:03:00,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458750609] [2019-12-07 15:03:00,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:00,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 15:03:00,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992194208] [2019-12-07 15:03:00,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:03:00,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:00,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:03:00,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:03:00,665 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 8 states. [2019-12-07 15:03:00,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:00,919 INFO L93 Difference]: Finished difference Result 340 states and 509 transitions. [2019-12-07 15:03:00,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 15:03:00,920 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 15:03:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:00,922 INFO L225 Difference]: With dead ends: 340 [2019-12-07 15:03:00,922 INFO L226 Difference]: Without dead ends: 311 [2019-12-07 15:03:00,923 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 15:03:00,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2019-12-07 15:03:00,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 84. [2019-12-07 15:03:00,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-12-07 15:03:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2019-12-07 15:03:00,936 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 25 [2019-12-07 15:03:00,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:00,936 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2019-12-07 15:03:00,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:03:00,936 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2019-12-07 15:03:00,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 15:03:00,938 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:00,938 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:01,138 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:03:01,139 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:01,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:01,140 INFO L82 PathProgramCache]: Analyzing trace with hash -2106367091, now seen corresponding path program 1 times [2019-12-07 15:03:01,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:01,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618745526] [2019-12-07 15:03:01,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/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 15:03:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:02,755 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 15:03:02,756 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:03:02,956 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 15:03:03,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:03:03 BoogieIcfgContainer [2019-12-07 15:03:03,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:03:03,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:03:03,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:03:03,064 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:03:03,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:02:59" (3/4) ... [2019-12-07 15:03:03,066 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:03:03,136 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1b56e938-3ebf-4e1f-98d3-ff3c72520ea3/bin/utaipan/witness.graphml [2019-12-07 15:03:03,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:03:03,137 INFO L168 Benchmark]: Toolchain (without parser) took 5023.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 953.7 MB in the beginning and 810.8 MB in the end (delta: 143.0 MB). Peak memory consumption was 281.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:03,137 INFO L168 Benchmark]: CDTParser took 0.12 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 15:03:03,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -166.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:03,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:03,138 INFO L168 Benchmark]: Boogie Preprocessor took 28.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:03,138 INFO L168 Benchmark]: RCFGBuilder took 497.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:03,139 INFO L168 Benchmark]: TraceAbstraction took 4014.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 821.2 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:03,139 INFO L168 Benchmark]: Witness Printer took 72.13 ms. Allocated memory is still 1.2 GB. Free memory was 821.2 MB in the beginning and 810.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:03,140 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 365.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -166.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 497.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4014.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 821.2 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. * Witness Printer took 72.13 ms. Allocated memory is still 1.2 GB. Free memory was 821.2 MB in the beginning and 810.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 643]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L184] int waterLevel = 1; [L185] int methaneLevelCritical = 0; [L442] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] int splverifierCounter ; [L833] int tmp ; [L834] int tmp___0 ; [L835] int tmp___1 ; [L836] int tmp___2 ; [L839] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L841] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L849] tmp = __VERIFIER_nondet_int() [L851] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L202] COND TRUE waterLevel < 2 [L203] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] tmp___0 = __VERIFIER_nondet_int() [L861] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] tmp___2 = __VERIFIER_nondet_int() [L871] COND TRUE \read(tmp___2) [L826] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L660] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] COND TRUE \read(systemActive) [L689] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] int tmp ; [L900] int tmp___0 ; [L901] int tmp___1 ; [L223] int retValue_acc ; [L226] retValue_acc = methaneLevelCritical [L227] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] tmp = isMethaneLevelCritical() [L907] COND FALSE !(\read(tmp)) [L255] int retValue_acc ; [L258] retValue_acc = waterLevel [L259] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L911] tmp___0 = getWaterLevel() [L913] COND TRUE tmp___0 == 2 [L759] int retValue_acc ; [L762] retValue_acc = pumpRunning [L763] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] tmp___1 = isPumpRunning() [L917] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 81 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 283 SDtfs, 642 SDslu, 505 SDs, 0 SdLazy, 103 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=4, 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, 4 MinimizatonAttempts, 227 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 8246 SizeOfPredicates, 6 NumberOfNonLiveVariables, 736 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...