./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a503d744e1f87de1c9c505a18eb69768c300bcf ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a503d744e1f87de1c9c505a18eb69768c300bcf ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-22 12:58:42,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:42,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:42,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:42,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:42,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:42,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:42,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:42,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:42,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:42,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:42,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:42,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:42,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:42,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:42,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:42,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:42,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:42,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:42,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:42,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:42,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:42,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:42,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:42,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:42,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:42,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:42,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:42,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:42,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:42,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:42,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:42,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:42,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:42,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:42,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:42,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:42,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:42,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:42,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:42,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:42,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:58:42,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:42,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:42,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:42,420 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:42,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:42,421 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:42,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:58:42,421 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:42,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:42,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:58:42,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:58:42,422 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:42,422 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:58:42,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:58:42,423 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:58:42,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:42,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:42,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:58:42,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:42,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:42,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:42,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:42,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:42,425 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:42,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:42,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:42,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:42,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:42,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:42,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:42,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:42,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:42,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:42,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:42,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:42,428 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:58:42,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:58:42,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:42,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:42,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:42,430 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a503d744e1f87de1c9c505a18eb69768c300bcf [2020-11-22 12:58:42,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:42,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:42,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:42,686 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:42,692 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:42,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-11-22 12:58:42,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/a95bae143/38a91f5dc6e1418d8b5bfb8d751a75ea/FLAG9f69e833d [2020-11-22 12:58:43,226 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:43,227 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-11-22 12:58:43,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/a95bae143/38a91f5dc6e1418d8b5bfb8d751a75ea/FLAG9f69e833d [2020-11-22 12:58:43,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/a95bae143/38a91f5dc6e1418d8b5bfb8d751a75ea [2020-11-22 12:58:43,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:43,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:43,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:43,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:43,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:43,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:43" (1/1) ... [2020-11-22 12:58:43,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ed2f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:43, skipping insertion in model container [2020-11-22 12:58:43,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:43" (1/1) ... [2020-11-22 12:58:43,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:43,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:43,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:43,987 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) [2020-11-22 12:58:43,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15a00954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:43, skipping insertion in model container [2020-11-22 12:58:43,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:43,989 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:58:43,991 INFO L168 Benchmark]: Toolchain (without parser) took 379.51 ms. Allocated memory is still 90.2 MB. Free memory was 60.9 MB in the beginning and 64.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:43,991 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:43,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.18 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 64.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:43,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 371.18 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 64.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 591]: 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 0.2.0-a4ecdab [2020-11-22 12:58:46,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:46,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:46,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:46,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:46,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:46,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:46,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:46,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:46,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:46,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:46,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:46,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:46,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:46,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:46,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:46,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:46,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:46,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:46,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:46,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:46,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:46,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:46,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:46,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:46,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:46,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:46,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:46,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:46,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:46,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:46,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:46,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:46,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:46,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:46,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:46,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:46,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:46,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:46,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:46,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:46,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:58:46,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:46,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:46,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:46,248 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:46,248 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:46,248 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:46,249 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:46,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:46,249 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:46,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:46,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:46,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:46,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:46,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:46,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:46,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:46,253 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:46,253 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:58:46,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:58:46,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:46,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:46,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:46,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:46,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:46,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:58:46,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:46,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:46,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:46,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:46,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:46,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:46,257 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:58:46,258 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:58:46,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:46,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:46,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:46,258 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a503d744e1f87de1c9c505a18eb69768c300bcf [2020-11-22 12:58:46,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:46,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:46,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:46,653 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:46,655 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:46,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-11-22 12:58:46,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/9e8a57aa0/e0bca8b4db3341f2894d524dfcf3c6b2/FLAG5b66c657c [2020-11-22 12:58:47,282 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:47,282 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-11-22 12:58:47,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/9e8a57aa0/e0bca8b4db3341f2894d524dfcf3c6b2/FLAG5b66c657c [2020-11-22 12:58:47,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/data/9e8a57aa0/e0bca8b4db3341f2894d524dfcf3c6b2 [2020-11-22 12:58:47,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:47,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:47,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:47,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:47,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:47,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2bca0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47, skipping insertion in model container [2020-11-22 12:58:47,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:47,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:47,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:47,967 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:58:47,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:48,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:48,037 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:48,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:48,142 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:48,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48 WrapperNode [2020-11-22 12:58:48,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:48,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:48,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:48,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:48,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:48,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:48,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:48,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:48,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... [2020-11-22 12:58:48,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:48,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:48,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:48,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:48,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/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 [2020-11-22 12:58:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:58:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:48,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:50,569 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:50,569 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-22 12:58:50,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:50 BoogieIcfgContainer [2020-11-22 12:58:50,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:50,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:50,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:50,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:50,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:47" (1/3) ... [2020-11-22 12:58:50,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272dee1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:50, skipping insertion in model container [2020-11-22 12:58:50,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:48" (2/3) ... [2020-11-22 12:58:50,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272dee1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:50, skipping insertion in model container [2020-11-22 12:58:50,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:50" (3/3) ... [2020-11-22 12:58:50,580 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-11-22 12:58:50,593 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:50,597 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:58:50,608 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:58:50,644 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:50,644 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:50,644 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:50,645 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:50,645 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:50,645 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:50,645 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:50,645 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-11-22 12:58:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:58:50,676 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:50,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:50,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:50,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:50,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1398271785, now seen corresponding path program 1 times [2020-11-22 12:58:50,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:50,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357586668] [2020-11-22 12:58:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/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 [2020-11-22 12:58:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:50,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:58:50,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:50,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:50,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357586668] [2020-11-22 12:58:50,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:50,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:58:50,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378575669] [2020-11-22 12:58:50,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:50,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:50,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:50,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:50,959 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2020-11-22 12:58:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:50,984 INFO L93 Difference]: Finished difference Result 169 states and 254 transitions. [2020-11-22 12:58:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:50,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:58:50,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:50,994 INFO L225 Difference]: With dead ends: 169 [2020-11-22 12:58:50,995 INFO L226 Difference]: Without dead ends: 82 [2020-11-22 12:58:50,998 INFO L677 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 [2020-11-22 12:58:51,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-22 12:58:51,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-11-22 12:58:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-22 12:58:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2020-11-22 12:58:51,036 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2020-11-22 12:58:51,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:51,036 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2020-11-22 12:58:51,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2020-11-22 12:58:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:58:51,038 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:51,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:51,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:58:51,251 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:51,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:51,252 INFO L82 PathProgramCache]: Analyzing trace with hash 706705125, now seen corresponding path program 1 times [2020-11-22 12:58:51,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:51,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124928977] [2020-11-22 12:58:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/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 [2020-11-22 12:58:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:51,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:58:51,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:51,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:51,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124928977] [2020-11-22 12:58:51,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:51,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:58:51,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188357938] [2020-11-22 12:58:51,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:58:51,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:51,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:58:51,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:58:51,477 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 4 states. [2020-11-22 12:58:51,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:51,504 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2020-11-22 12:58:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:58:51,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:58:51,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:51,508 INFO L225 Difference]: With dead ends: 82 [2020-11-22 12:58:51,508 INFO L226 Difference]: Without dead ends: 38 [2020-11-22 12:58:51,509 INFO L677 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 [2020-11-22 12:58:51,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-22 12:58:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-22 12:58:51,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-22 12:58:51,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-11-22 12:58:51,521 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-11-22 12:58:51,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:51,524 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-11-22 12:58:51,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:58:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-11-22 12:58:51,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:58:51,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:51,525 INFO L422 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] [2020-11-22 12:58:51,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:58:51,726 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:51,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:51,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2020-11-22 12:58:51,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:51,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114226392] [2020-11-22 12:58:51,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/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 [2020-11-22 12:58:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:51,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:58:51,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:51,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:51,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114226392] [2020-11-22 12:58:51,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:51,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:58:51,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396836137] [2020-11-22 12:58:51,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:58:51,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:51,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:58:51,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:58:51,994 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 4 states. [2020-11-22 12:58:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:52,051 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2020-11-22 12:58:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:58:52,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:58:52,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:52,056 INFO L225 Difference]: With dead ends: 127 [2020-11-22 12:58:52,057 INFO L226 Difference]: Without dead ends: 95 [2020-11-22 12:58:52,057 INFO L677 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 [2020-11-22 12:58:52,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-22 12:58:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2020-11-22 12:58:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-22 12:58:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2020-11-22 12:58:52,072 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2020-11-22 12:58:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:52,073 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2020-11-22 12:58:52,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:58:52,073 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2020-11-22 12:58:52,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:58:52,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:52,074 INFO L422 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] [2020-11-22 12:58:52,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:58:52,275 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:52,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:52,276 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2020-11-22 12:58:52,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:52,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894833267] [2020-11-22 12:58:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/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 [2020-11-22 12:58:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:52,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:58:52,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:52,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:52,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:52,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894833267] [2020-11-22 12:58:52,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:52,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:58:52,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860259653] [2020-11-22 12:58:52,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:58:52,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:52,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:58:52,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:58:52,540 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2020-11-22 12:58:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:52,637 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2020-11-22 12:58:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:58:52,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 12:58:52,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:52,639 INFO L225 Difference]: With dead ends: 135 [2020-11-22 12:58:52,639 INFO L226 Difference]: Without dead ends: 82 [2020-11-22 12:58:52,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:58:52,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-22 12:58:52,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2020-11-22 12:58:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-22 12:58:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2020-11-22 12:58:52,660 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2020-11-22 12:58:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:52,661 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2020-11-22 12:58:52,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:58:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2020-11-22 12:58:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 12:58:52,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:52,662 INFO L422 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] [2020-11-22 12:58:52,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:58:52,891 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:52,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:52,892 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2020-11-22 12:58:52,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:52,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119719897] [2020-11-22 12:58:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/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 [2020-11-22 12:58:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:53,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:58:53,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:53,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:53,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119719897] [2020-11-22 12:58:53,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:53,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 12:58:53,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482497673] [2020-11-22 12:58:53,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:58:53,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:53,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:58:53,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:58:53,132 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 8 states. [2020-11-22 12:58:53,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:53,621 INFO L93 Difference]: Finished difference Result 840 states and 1240 transitions. [2020-11-22 12:58:53,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 12:58:53,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-11-22 12:58:53,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:53,636 INFO L225 Difference]: With dead ends: 840 [2020-11-22 12:58:53,638 INFO L226 Difference]: Without dead ends: 766 [2020-11-22 12:58:53,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 12:58:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-11-22 12:58:53,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 209. [2020-11-22 12:58:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-22 12:58:53,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2020-11-22 12:58:53,726 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 27 [2020-11-22 12:58:53,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:53,726 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2020-11-22 12:58:53,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:58:53,726 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2020-11-22 12:58:53,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 12:58:53,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:53,732 INFO L422 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] [2020-11-22 12:58:53,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:58:53,952 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:53,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:53,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2020-11-22 12:58:53,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:53,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288029358] [2020-11-22 12:58:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/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 [2020-11-22 12:58:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:55,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:56,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:56,568 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:58:56,568 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:58:56,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:58:56,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:56 BoogieIcfgContainer [2020-11-22 12:58:56,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:56,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:56,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:56,944 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:56,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:50" (3/4) ... [2020-11-22 12:58:56,946 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:58:57,034 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6c51602-4266-4004-b48e-e18099d4325d/bin/utaipan/witness.graphml [2020-11-22 12:58:57,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:57,039 INFO L168 Benchmark]: Toolchain (without parser) took 9459.46 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 48.5 MB in the beginning and 59.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:57,040 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:57,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.11 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 33.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:57,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.99 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 30.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:57,041 INFO L168 Benchmark]: Boogie Preprocessor took 81.60 ms. Allocated memory is still 67.1 MB. Free memory was 30.7 MB in the beginning and 28.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:57,041 INFO L168 Benchmark]: RCFGBuilder took 2256.53 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 28.1 MB in the beginning and 55.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:57,042 INFO L168 Benchmark]: TraceAbstraction took 6358.61 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 55.0 MB in the beginning and 70.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:57,042 INFO L168 Benchmark]: Witness Printer took 93.88 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 59.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:57,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 564.11 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 33.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.99 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 30.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.60 ms. Allocated memory is still 67.1 MB. Free memory was 30.7 MB in the beginning and 28.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2256.53 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 28.1 MB in the beginning and 55.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6358.61 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 55.0 MB in the beginning and 70.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * Witness Printer took 93.88 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 59.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L402] int retValue_acc ; [L403] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L137] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 798 SDslu, 790 SDs, 0 SdLazy, 149 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 595 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 12713 SizeOfPredicates, 6 NumberOfNonLiveVariables, 994 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...