./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_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_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 858ae6ce02a6182d965089435301193a306a5587 ............................................................................................................................................ 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_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 858ae6ce02a6182d965089435301193a306a5587 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:08:12,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:12,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:12,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:12,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:12,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:12,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:12,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:12,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:12,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:12,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:12,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:12,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:12,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:12,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:12,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:12,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:12,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:12,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:12,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:12,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:12,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:12,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:12,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:12,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:12,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:12,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:12,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:12,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:12,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:12,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:12,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:12,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:12,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:12,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:12,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:12,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:12,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:12,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:12,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:12,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:12,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:12,536 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:12,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:12,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:12,537 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:12,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:12,538 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:12,538 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:12,538 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:12,539 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:12,539 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:12,540 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:12,540 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:12,540 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:12,541 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:12,541 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:12,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:12,542 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:12,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:12,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:12,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:12,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:12,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:12,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:12,543 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:12,544 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:12,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:12,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:12,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:12,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:12,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:12,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:12,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:12,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:12,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:12,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:12,547 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:12,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:12,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:12,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:12,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:12,548 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_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 858ae6ce02a6182d965089435301193a306a5587 [2020-11-22 13:08:12,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:12,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:12,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:12,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:12,824 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:12,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-22 13:08:12,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/bcf60080c/50e693c273aa489199b898141f1bc2d1/FLAG3baea5781 [2020-11-22 13:08:13,440 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:13,441 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-22 13:08:13,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/bcf60080c/50e693c273aa489199b898141f1bc2d1/FLAG3baea5781 [2020-11-22 13:08:13,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/bcf60080c/50e693c273aa489199b898141f1bc2d1 [2020-11-22 13:08:13,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:13,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:13,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:13,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:13,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:13,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:13" (1/1) ... [2020-11-22 13:08:13,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76268cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:13, skipping insertion in model container [2020-11-22 13:08:13,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:13" (1/1) ... [2020-11-22 13:08:13,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:13,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:14,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:14,200 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 13:08:14,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2bfccbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:14, skipping insertion in model container [2020-11-22 13:08:14,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:14,203 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:08:14,207 INFO L168 Benchmark]: Toolchain (without parser) took 445.30 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.7 MB in the beginning and 72.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:14,209 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 81.8 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 42.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:14,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.87 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.5 MB in the beginning and 72.5 MB in the end (delta: -24.0 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:14,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 81.8 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 42.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 436.87 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.5 MB in the beginning and 72.5 MB in the end (delta: -24.0 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: 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 13:08:16,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:16,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:16,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:16,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:16,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:16,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:16,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:16,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:16,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:16,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:16,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:16,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:16,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:16,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:16,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:16,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:16,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:16,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:16,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:16,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:16,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:16,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:16,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:16,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:16,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:16,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:16,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:16,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:16,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:16,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:16,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:16,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:16,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:16,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:16,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:16,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:16,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:16,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:16,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:16,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:16,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:16,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:16,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:16,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:16,470 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:16,471 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:16,471 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:16,471 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:16,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:16,472 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:16,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:16,474 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:16,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:16,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:16,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:16,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:16,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:16,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:16,476 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:16,476 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:16,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:16,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:16,477 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:16,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:16,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:16,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:16,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:16,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:16,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:16,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:16,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:16,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:16,479 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:16,479 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:16,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:16,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:16,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:16,480 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_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 858ae6ce02a6182d965089435301193a306a5587 [2020-11-22 13:08:16,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:16,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:16,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:16,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:16,921 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:16,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-22 13:08:16,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/879ff8ea6/9b67f0a3196044838c8a9ff672987dea/FLAGeeb8ac6b0 [2020-11-22 13:08:17,566 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:17,566 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-22 13:08:17,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/879ff8ea6/9b67f0a3196044838c8a9ff672987dea/FLAGeeb8ac6b0 [2020-11-22 13:08:18,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/data/879ff8ea6/9b67f0a3196044838c8a9ff672987dea [2020-11-22 13:08:18,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:18,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:18,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:18,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:18,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:18,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d20687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18, skipping insertion in model container [2020-11-22 13:08:18,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:18,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:18,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:18,400 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:08:18,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:18,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:18,513 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:18,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:18,628 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:18,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18 WrapperNode [2020-11-22 13:08:18,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:18,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:18,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:18,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:18,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:18,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:18,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:18,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:18,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:18,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:18,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:18,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:18,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 13:08:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:08:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:21,297 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:21,297 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-22 13:08:21,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:21 BoogieIcfgContainer [2020-11-22 13:08:21,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:21,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:21,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:21,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:21,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:18" (1/3) ... [2020-11-22 13:08:21,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:21, skipping insertion in model container [2020-11-22 13:08:21,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (2/3) ... [2020-11-22 13:08:21,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:21, skipping insertion in model container [2020-11-22 13:08:21,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:21" (3/3) ... [2020-11-22 13:08:21,323 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-11-22 13:08:21,333 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:21,337 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:08:21,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:08:21,398 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:21,401 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:21,401 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:21,401 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:21,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:21,402 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:21,402 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:21,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:21,417 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-11-22 13:08:21,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:08:21,423 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:21,424 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 13:08:21,424 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:21,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:21,430 INFO L82 PathProgramCache]: Analyzing trace with hash 339537202, now seen corresponding path program 1 times [2020-11-22 13:08:21,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:21,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041642221] [2020-11-22 13:08:21,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 13:08:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:21,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:08:21,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:21,715 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 13:08:21,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:21,727 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 13:08:21,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041642221] [2020-11-22 13:08:21,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:21,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:08:21,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498459061] [2020-11-22 13:08:21,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:21,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:21,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:21,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:21,747 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2020-11-22 13:08:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:21,773 INFO L93 Difference]: Finished difference Result 164 states and 249 transitions. [2020-11-22 13:08:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:21,774 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:08:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:21,786 INFO L225 Difference]: With dead ends: 164 [2020-11-22 13:08:21,786 INFO L226 Difference]: Without dead ends: 80 [2020-11-22 13:08:21,789 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 13:08:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-22 13:08:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-22 13:08:21,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-22 13:08:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2020-11-22 13:08:21,845 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2020-11-22 13:08:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:21,845 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2020-11-22 13:08:21,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-11-22 13:08:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:08:21,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:21,847 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 13:08:22,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:08:22,071 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:22,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:22,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1884723747, now seen corresponding path program 1 times [2020-11-22 13:08:22,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:22,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676487378] [2020-11-22 13:08:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 13:08:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:22,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:08:22,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:22,355 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 13:08:22,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:22,374 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 13:08:22,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676487378] [2020-11-22 13:08:22,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:22,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:08:22,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770108908] [2020-11-22 13:08:22,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:08:22,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:22,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:08:22,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:08:22,378 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 4 states. [2020-11-22 13:08:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:22,393 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2020-11-22 13:08:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:08:22,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:08:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:22,395 INFO L225 Difference]: With dead ends: 80 [2020-11-22 13:08:22,395 INFO L226 Difference]: Without dead ends: 38 [2020-11-22 13:08:22,397 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 13:08:22,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-22 13:08:22,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-22 13:08:22,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-22 13:08:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-11-22 13:08:22,402 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-11-22 13:08:22,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:22,403 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-11-22 13:08:22,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:08:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-11-22 13:08:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:08:22,404 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:22,404 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 13:08:22,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:08:22,618 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:22,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:22,619 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2020-11-22 13:08:22,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:22,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484997718] [2020-11-22 13:08:22,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 13:08:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:22,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:08:22,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:22,826 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 13:08:22,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:22,841 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 13:08:22,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484997718] [2020-11-22 13:08:22,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:22,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:08:22,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861416053] [2020-11-22 13:08:22,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:08:22,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:22,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:08:22,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:08:22,843 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 4 states. [2020-11-22 13:08:22,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:22,868 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2020-11-22 13:08:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:08:22,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:08:22,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:22,870 INFO L225 Difference]: With dead ends: 124 [2020-11-22 13:08:22,870 INFO L226 Difference]: Without dead ends: 93 [2020-11-22 13:08:22,871 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 13:08:22,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-22 13:08:22,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2020-11-22 13:08:22,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-22 13:08:22,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2020-11-22 13:08:22,883 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 24 [2020-11-22 13:08:22,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:22,883 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2020-11-22 13:08:22,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:08:22,883 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2020-11-22 13:08:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:08:22,884 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:22,884 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 13:08:23,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:08:23,085 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:23,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:23,086 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2020-11-22 13:08:23,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:23,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732522743] [2020-11-22 13:08:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 13:08:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:23,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:08:23,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:23,282 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 13:08:23,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:23,285 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 13:08:23,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732522743] [2020-11-22 13:08:23,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:23,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:08:23,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666166916] [2020-11-22 13:08:23,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:08:23,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:23,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:08:23,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:08:23,287 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand 3 states. [2020-11-22 13:08:23,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:23,354 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2020-11-22 13:08:23,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:08:23,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 13:08:23,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:23,356 INFO L225 Difference]: With dead ends: 131 [2020-11-22 13:08:23,356 INFO L226 Difference]: Without dead ends: 80 [2020-11-22 13:08:23,357 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 13:08:23,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-22 13:08:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2020-11-22 13:08:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-22 13:08:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-11-22 13:08:23,369 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 25 [2020-11-22 13:08:23,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:23,370 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-11-22 13:08:23,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:08:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-11-22 13:08:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 13:08:23,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:23,371 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 13:08:23,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:08:23,572 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:23,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:23,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2020-11-22 13:08:23,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:23,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142022528] [2020-11-22 13:08:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 13:08:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:23,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:08:23,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:23,839 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 13:08:23,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:23,852 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 13:08:23,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142022528] [2020-11-22 13:08:23,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:23,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:08:23,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177446469] [2020-11-22 13:08:23,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:08:23,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:23,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:08:23,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:08:23,855 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 5 states. [2020-11-22 13:08:23,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:23,976 INFO L93 Difference]: Finished difference Result 361 states and 530 transitions. [2020-11-22 13:08:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:08:23,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-22 13:08:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:23,979 INFO L225 Difference]: With dead ends: 361 [2020-11-22 13:08:23,980 INFO L226 Difference]: Without dead ends: 290 [2020-11-22 13:08:23,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:08:23,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-22 13:08:24,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 138. [2020-11-22 13:08:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-22 13:08:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 195 transitions. [2020-11-22 13:08:24,005 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 195 transitions. Word has length 27 [2020-11-22 13:08:24,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:24,006 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 195 transitions. [2020-11-22 13:08:24,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:08:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 195 transitions. [2020-11-22 13:08:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 13:08:24,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:24,008 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 13:08:24,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:08:24,224 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:24,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:24,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2020-11-22 13:08:24,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:24,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387369746] [2020-11-22 13:08:24,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/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 13:08:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:24,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:08:24,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:24,465 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 13:08:24,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:24,469 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 13:08:24,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387369746] [2020-11-22 13:08:24,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:24,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:08:24,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399215438] [2020-11-22 13:08:24,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:08:24,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:24,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:08:24,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:08:24,471 INFO L87 Difference]: Start difference. First operand 138 states and 195 transitions. Second operand 5 states. [2020-11-22 13:08:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:24,669 INFO L93 Difference]: Finished difference Result 499 states and 711 transitions. [2020-11-22 13:08:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:08:24,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-22 13:08:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:24,672 INFO L225 Difference]: With dead ends: 499 [2020-11-22 13:08:24,672 INFO L226 Difference]: Without dead ends: 368 [2020-11-22 13:08:24,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:08:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-11-22 13:08:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 136. [2020-11-22 13:08:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-22 13:08:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2020-11-22 13:08:24,713 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 28 [2020-11-22 13:08:24,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:24,713 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2020-11-22 13:08:24,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:08:24,714 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2020-11-22 13:08:24,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:08:24,721 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:24,721 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, 1, 1, 1, 1] [2020-11-22 13:08:24,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:08:24,938 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:24,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:24,939 INFO L82 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2020-11-22 13:08:24,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:24,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041306998] [2020-11-22 13:08:24,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:25,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:08:25,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:25,164 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 13:08:25,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:25,173 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 13:08:25,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041306998] [2020-11-22 13:08:25,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:25,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:08:25,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718061640] [2020-11-22 13:08:25,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:08:25,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:25,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:08:25,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:08:25,176 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand 5 states. [2020-11-22 13:08:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:25,254 INFO L93 Difference]: Finished difference Result 401 states and 556 transitions. [2020-11-22 13:08:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:08:25,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 13:08:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:25,257 INFO L225 Difference]: With dead ends: 401 [2020-11-22 13:08:25,257 INFO L226 Difference]: Without dead ends: 272 [2020-11-22 13:08:25,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:08:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-22 13:08:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 142. [2020-11-22 13:08:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-22 13:08:25,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2020-11-22 13:08:25,279 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 32 [2020-11-22 13:08:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:25,280 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-22 13:08:25,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:08:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2020-11-22 13:08:25,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:08:25,283 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:25,284 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, 1, 1, 1, 1] [2020-11-22 13:08:25,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:08:25,496 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:25,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:25,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2020-11-22 13:08:25,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:25,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311555792] [2020-11-22 13:08:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:25,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:08:25,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:25,732 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 13:08:25,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:25,757 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 13:08:25,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311555792] [2020-11-22 13:08:25,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:25,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:08:25,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845847564] [2020-11-22 13:08:25,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:08:25,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:25,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:08:25,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:08:25,759 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand 6 states. [2020-11-22 13:08:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:25,847 INFO L93 Difference]: Finished difference Result 435 states and 595 transitions. [2020-11-22 13:08:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:08:25,848 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-22 13:08:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:25,851 INFO L225 Difference]: With dead ends: 435 [2020-11-22 13:08:25,851 INFO L226 Difference]: Without dead ends: 300 [2020-11-22 13:08:25,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:08:25,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-11-22 13:08:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 146. [2020-11-22 13:08:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-22 13:08:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2020-11-22 13:08:25,875 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 32 [2020-11-22 13:08:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:25,876 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2020-11-22 13:08:25,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:08:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2020-11-22 13:08:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:08:25,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:25,877 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, 1, 1, 1, 1] [2020-11-22 13:08:26,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:08:26,097 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:26,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:26,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2020-11-22 13:08:26,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:26,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857081810] [2020-11-22 13:08:26,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:26,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:08:26,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:26,314 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 13:08:26,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:26,333 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 13:08:26,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857081810] [2020-11-22 13:08:26,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:26,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:08:26,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129790999] [2020-11-22 13:08:26,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:08:26,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:26,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:08:26,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:08:26,336 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand 4 states. [2020-11-22 13:08:26,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:26,440 INFO L93 Difference]: Finished difference Result 496 states and 679 transitions. [2020-11-22 13:08:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:08:26,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-22 13:08:26,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:26,443 INFO L225 Difference]: With dead ends: 496 [2020-11-22 13:08:26,443 INFO L226 Difference]: Without dead ends: 357 [2020-11-22 13:08:26,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 13:08:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-11-22 13:08:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 269. [2020-11-22 13:08:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-11-22 13:08:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 364 transitions. [2020-11-22 13:08:26,485 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 364 transitions. Word has length 32 [2020-11-22 13:08:26,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:26,486 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 364 transitions. [2020-11-22 13:08:26,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:08:26,486 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 364 transitions. [2020-11-22 13:08:26,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 13:08:26,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:26,488 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, 1, 1, 1, 1, 1] [2020-11-22 13:08:26,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:08:26,701 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:26,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:26,702 INFO L82 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2020-11-22 13:08:26,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:26,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675397816] [2020-11-22 13:08:26,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:26,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:08:26,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:26,903 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 13:08:26,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:26,906 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 13:08:26,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675397816] [2020-11-22 13:08:26,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:26,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:08:26,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449632308] [2020-11-22 13:08:26,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:08:26,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:26,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:08:26,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:08:26,908 INFO L87 Difference]: Start difference. First operand 269 states and 364 transitions. Second operand 3 states. [2020-11-22 13:08:27,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:27,007 INFO L93 Difference]: Finished difference Result 419 states and 564 transitions. [2020-11-22 13:08:27,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:08:27,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-22 13:08:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:27,012 INFO L225 Difference]: With dead ends: 419 [2020-11-22 13:08:27,013 INFO L226 Difference]: Without dead ends: 417 [2020-11-22 13:08:27,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 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 13:08:27,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-11-22 13:08:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 323. [2020-11-22 13:08:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-11-22 13:08:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 444 transitions. [2020-11-22 13:08:27,062 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 444 transitions. Word has length 33 [2020-11-22 13:08:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:27,063 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 444 transitions. [2020-11-22 13:08:27,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:08:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 444 transitions. [2020-11-22 13:08:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-22 13:08:27,065 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:27,065 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:27,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:08:27,282 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:27,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:27,283 INFO L82 PathProgramCache]: Analyzing trace with hash 828573398, now seen corresponding path program 1 times [2020-11-22 13:08:27,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:27,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767103667] [2020-11-22 13:08:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:28,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:30,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:30,607 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:08:30,607 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:30,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 13:08:30,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:30 BoogieIcfgContainer [2020-11-22 13:08:30,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:30,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:30,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:30,995 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:30,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:21" (3/4) ... [2020-11-22 13:08:30,997 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:08:31,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1ed06294-1219-4cb3-b4c4-0ff9a53a4a7a/bin/utaipan/witness.graphml [2020-11-22 13:08:31,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:31,159 INFO L168 Benchmark]: Toolchain (without parser) took 13146.61 ms. Allocated memory was 75.5 MB in the beginning and 123.7 MB in the end (delta: 48.2 MB). Free memory was 53.8 MB in the beginning and 58.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:31,160 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:31,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.78 ms. Allocated memory is still 75.5 MB. Free memory was 53.7 MB in the beginning and 43.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:31,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.41 ms. Allocated memory is still 75.5 MB. Free memory was 43.7 MB in the beginning and 40.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:31,161 INFO L168 Benchmark]: Boogie Preprocessor took 78.27 ms. Allocated memory is still 75.5 MB. Free memory was 40.7 MB in the beginning and 38.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:31,161 INFO L168 Benchmark]: RCFGBuilder took 2498.33 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 38.1 MB in the beginning and 73.3 MB in the end (delta: -35.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:31,162 INFO L168 Benchmark]: TraceAbstraction took 9693.30 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 72.7 MB in the beginning and 79.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 62.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:31,162 INFO L168 Benchmark]: Witness Printer took 163.09 ms. Allocated memory is still 123.7 MB. Free memory was 79.9 MB in the beginning and 58.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:31,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 615.78 ms. Allocated memory is still 75.5 MB. Free memory was 53.7 MB in the beginning and 43.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.41 ms. Allocated memory is still 75.5 MB. Free memory was 43.7 MB in the beginning and 40.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.27 ms. Allocated memory is still 75.5 MB. Free memory was 40.7 MB in the beginning and 38.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2498.33 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 38.1 MB in the beginning and 73.3 MB in the end (delta: -35.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9693.30 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 72.7 MB in the beginning and 79.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 62.8 MB. Max. memory is 16.1 GB. * Witness Printer took 163.09 ms. Allocated memory is still 123.7 MB. Free memory was 79.9 MB in the beginning and 58.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L418] int pumpRunning = 0; [L419] int systemActive = 1; [L657] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L725] int retValue_acc ; [L728] retValue_acc = 1 [L729] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int splverifierCounter ; [L591] int tmp ; [L592] int tmp___0 ; [L593] int tmp___1 ; [L594] int tmp___2 ; [L597] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] tmp = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L871] COND FALSE !(\read(methaneLevelCritical)) [L874] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] COND TRUE ! pumpRunning [L552] int retValue_acc ; [L553] int tmp ; [L554] int tmp___0 ; [L921] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L924] COND FALSE !(waterLevel < 2) [L928] retValue_acc = 0 [L929] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp = isHighWaterSensorDry() [L560] COND FALSE !(\read(tmp)) [L563] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L565] retValue_acc = tmp___0 [L566] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] tmp = isHighWaterLevel() [L462] COND TRUE \read(tmp) [L483] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L679] COND FALSE !(\read(methAndRunningLastTime)) [L684] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L607] tmp = __VERIFIER_nondet_int() [L609] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L426] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L847] COND TRUE waterLevel > 0 [L848] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L458] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L679] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 719 SDtfs, 859 SDslu, 1260 SDs, 0 SdLazy, 130 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 887 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 27730 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2048 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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...