./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.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_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc ............................................................................................................................................ 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_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:08:50,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:50,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:50,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:50,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:50,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:50,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:50,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:50,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:50,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:50,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:50,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:50,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:50,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:50,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:50,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:50,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:50,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:50,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:50,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:50,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:50,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:50,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:50,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:50,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:50,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:50,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:50,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:50,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:50,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:50,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:50,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:50,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:50,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:50,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:50,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:50,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:50,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:50,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:50,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:50,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:50,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:50,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:50,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:50,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:50,477 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:50,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:50,478 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:50,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:50,479 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:50,479 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:50,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:50,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:50,480 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:50,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:50,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:50,481 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:50,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:50,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:50,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:50,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:50,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:50,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:50,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:50,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:50,484 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:50,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:50,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:50,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:50,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:50,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:50,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:50,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:50,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:50,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:50,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:50,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:50,487 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:50,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:50,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:50,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:50,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:50,488 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_60cadcc8-475e-4063-851d-9e0617a1cba0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc [2020-11-22 13:08:50,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:50,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:50,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:50,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:50,757 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:50,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-22 13:08:50,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/83effeefc/223d37190d5645c6bb72dcbf275e15e8/FLAG14627a2fb [2020-11-22 13:08:51,386 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:51,386 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-22 13:08:51,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/83effeefc/223d37190d5645c6bb72dcbf275e15e8/FLAG14627a2fb [2020-11-22 13:08:51,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/83effeefc/223d37190d5645c6bb72dcbf275e15e8 [2020-11-22 13:08:51,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:51,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:51,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:51,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:51,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:51,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:51" (1/1) ... [2020-11-22 13:08:51,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33764639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:51, skipping insertion in model container [2020-11-22 13:08:51,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:51" (1/1) ... [2020-11-22 13:08:51,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:51,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:52,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:52,145 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 13:08:52,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@383cc993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52, skipping insertion in model container [2020-11-22 13:08:52,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:52,146 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:08:52,148 INFO L168 Benchmark]: Toolchain (without parser) took 480.45 ms. Allocated memory is still 81.8 MB. Free memory was 50.6 MB in the beginning and 55.9 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:52,149 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 81.8 MB. Free memory is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:52,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.13 ms. Allocated memory is still 81.8 MB. Free memory was 50.4 MB in the beginning and 55.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:52,152 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 is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.13 ms. Allocated memory is still 81.8 MB. Free memory was 50.4 MB in the beginning and 55.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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 13:08:54,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:54,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:54,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:54,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:54,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:54,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:54,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:54,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:54,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:54,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:54,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:54,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:54,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:54,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:54,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:54,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:54,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:54,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:54,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:54,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:54,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:54,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:54,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:54,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:54,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:54,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:54,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:54,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:54,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:54,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:54,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:54,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:54,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:54,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:54,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:54,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:54,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:54,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:54,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:54,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:54,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:54,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:54,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:54,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:54,507 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:54,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:54,507 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:54,507 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:54,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:54,508 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:54,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:54,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:54,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:54,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:54,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:54,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:54,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:54,510 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:54,510 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:54,510 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:54,511 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:54,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:54,511 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:54,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:54,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:54,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:54,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:54,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:54,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:54,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:54,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:54,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:54,527 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:54,527 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:54,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:54,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:54,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:54,528 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_60cadcc8-475e-4063-851d-9e0617a1cba0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc [2020-11-22 13:08:54,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:54,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:54,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:54,898 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:54,899 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:54,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-22 13:08:54,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/f8b5c1b70/1bc4c4a79b524880bea34338bb7d6b2d/FLAGaad896b04 [2020-11-22 13:08:55,637 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:55,637 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-22 13:08:55,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/f8b5c1b70/1bc4c4a79b524880bea34338bb7d6b2d/FLAGaad896b04 [2020-11-22 13:08:55,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/data/f8b5c1b70/1bc4c4a79b524880bea34338bb7d6b2d [2020-11-22 13:08:55,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:55,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:55,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:55,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:55,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:55,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:55" (1/1) ... [2020-11-22 13:08:55,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac90662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:55, skipping insertion in model container [2020-11-22 13:08:55,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:55" (1/1) ... [2020-11-22 13:08:55,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:56,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:56,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:56,436 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:08:56,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:56,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:56,517 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:56,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:56,645 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:56,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56 WrapperNode [2020-11-22 13:08:56,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:56,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:56,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:56,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:56,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:56,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:56,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:56,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:56,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... [2020-11-22 13:08:56,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:56,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:56,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:56,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:56,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 13:08:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:08:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:59,536 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:59,537 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-22 13:08:59,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:59 BoogieIcfgContainer [2020-11-22 13:08:59,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:59,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:59,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:59,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:59,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:55" (1/3) ... [2020-11-22 13:08:59,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fa9050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:59, skipping insertion in model container [2020-11-22 13:08:59,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56" (2/3) ... [2020-11-22 13:08:59,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fa9050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:59, skipping insertion in model container [2020-11-22 13:08:59,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:59" (3/3) ... [2020-11-22 13:08:59,546 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-11-22 13:08:59,556 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:59,560 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:08:59,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:08:59,595 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:59,595 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:59,595 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:59,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:59,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:59,596 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:59,596 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:59,596 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-22 13:08:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:08:59,616 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:59,617 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 13:08:59,617 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:59,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:59,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1335483370, now seen corresponding path program 1 times [2020-11-22 13:08:59,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:59,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560380869] [2020-11-22 13:08:59,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 13:08:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:59,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:08:59,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:59,882 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 13:08:59,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:59,887 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 13:08:59,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560380869] [2020-11-22 13:08:59,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:59,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:08:59,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28561079] [2020-11-22 13:08:59,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:59,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:59,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:59,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:59,909 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-22 13:08:59,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:59,940 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-22 13:08:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:59,941 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:08:59,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:59,952 INFO L225 Difference]: With dead ends: 223 [2020-11-22 13:08:59,952 INFO L226 Difference]: Without dead ends: 109 [2020-11-22 13:08:59,955 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 13:08:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-22 13:08:59,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-22 13:08:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-22 13:08:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-22 13:08:59,998 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-22 13:08:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:59,998 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-22 13:08:59,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-22 13:09:00,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:09:00,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:00,000 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 13:09:00,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:09:00,215 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:00,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:00,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2048453173, now seen corresponding path program 1 times [2020-11-22 13:09:00,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:00,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921432781] [2020-11-22 13:09:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 13:09:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:00,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:00,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:00,481 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 13:09:00,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:00,501 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 13:09:00,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921432781] [2020-11-22 13:09:00,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:00,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:09:00,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009192626] [2020-11-22 13:09:00,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:00,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:00,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:00,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:00,505 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 4 states. [2020-11-22 13:09:00,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:00,530 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-22 13:09:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:00,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:09:00,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:00,536 INFO L225 Difference]: With dead ends: 109 [2020-11-22 13:09:00,536 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 13:09:00,538 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 13:09:00,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 13:09:00,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 13:09:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 13:09:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-22 13:09:00,551 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-22 13:09:00,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:00,555 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-22 13:09:00,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:00,556 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-22 13:09:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:09:00,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:00,560 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 13:09:00,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:09:00,783 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:00,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:00,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2020-11-22 13:09:00,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:00,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868325175] [2020-11-22 13:09:00,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 13:09:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:00,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:00,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:01,013 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 13:09:01,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:01,026 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 13:09:01,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868325175] [2020-11-22 13:09:01,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:01,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:09:01,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533376189] [2020-11-22 13:09:01,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:01,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:01,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:01,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:01,029 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 4 states. [2020-11-22 13:09:01,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:01,070 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2020-11-22 13:09:01,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:09:01,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:09:01,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:01,074 INFO L225 Difference]: With dead ends: 154 [2020-11-22 13:09:01,074 INFO L226 Difference]: Without dead ends: 113 [2020-11-22 13:09:01,075 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 13:09:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-22 13:09:01,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2020-11-22 13:09:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-22 13:09:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-22 13:09:01,093 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2020-11-22 13:09:01,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:01,094 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-22 13:09:01,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-22 13:09:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:09:01,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:01,096 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] [2020-11-22 13:09:01,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:09:01,309 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:01,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:01,309 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2020-11-22 13:09:01,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:01,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460991068] [2020-11-22 13:09:01,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 13:09:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:01,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:01,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:01,641 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 13:09:01,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:01,678 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 13:09:01,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460991068] [2020-11-22 13:09:01,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:01,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:09:01,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096461978] [2020-11-22 13:09:01,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:09:01,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:01,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:09:01,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:09:01,681 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 8 states. [2020-11-22 13:09:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:02,097 INFO L93 Difference]: Finished difference Result 762 states and 1164 transitions. [2020-11-22 13:09:02,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:09:02,098 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-11-22 13:09:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:02,104 INFO L225 Difference]: With dead ends: 762 [2020-11-22 13:09:02,104 INFO L226 Difference]: Without dead ends: 700 [2020-11-22 13:09:02,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:09:02,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-11-22 13:09:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 178. [2020-11-22 13:09:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-22 13:09:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2020-11-22 13:09:02,158 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 26 [2020-11-22 13:09:02,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:02,158 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2020-11-22 13:09:02,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:09:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2020-11-22 13:09:02,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 13:09:02,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:02,166 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 13:09:02,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:09:02,366 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:02,367 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2020-11-22 13:09:02,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:02,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412992366] [2020-11-22 13:09:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/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 13:09:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:03,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:05,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:05,306 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:09:05,307 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:09:05,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:09:05,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:05 BoogieIcfgContainer [2020-11-22 13:09:05,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:09:05,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:09:05,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:09:05,630 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:09:05,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:59" (3/4) ... [2020-11-22 13:09:05,634 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:09:05,723 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_60cadcc8-475e-4063-851d-9e0617a1cba0/bin/utaipan/witness.graphml [2020-11-22 13:09:05,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:09:05,726 INFO L168 Benchmark]: Toolchain (without parser) took 9796.29 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 42.9 MB in the beginning and 63.0 MB in the end (delta: -20.2 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:05,726 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:05,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.06 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 27.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:05,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.06 ms. Allocated memory is still 62.9 MB. Free memory was 27.9 MB in the beginning and 44.0 MB in the end (delta: -16.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:05,728 INFO L168 Benchmark]: Boogie Preprocessor took 58.14 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 41.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:05,728 INFO L168 Benchmark]: RCFGBuilder took 2741.58 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 41.3 MB in the beginning and 37.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:05,729 INFO L168 Benchmark]: TraceAbstraction took 6089.68 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 36.7 MB in the beginning and 31.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:05,729 INFO L168 Benchmark]: Witness Printer took 93.72 ms. Allocated memory is still 94.4 MB. Free memory was 31.5 MB in the beginning and 63.0 MB in the end (delta: -31.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:05,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 716.06 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 27.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.06 ms. Allocated memory is still 62.9 MB. Free memory was 27.9 MB in the beginning and 44.0 MB in the end (delta: -16.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.14 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 41.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2741.58 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 41.3 MB in the beginning and 37.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6089.68 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 36.7 MB in the beginning and 31.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * Witness Printer took 93.72 ms. Allocated memory is still 94.4 MB. Free memory was 31.5 MB in the beginning and 63.0 MB in the end (delta: -31.6 MB). Peak memory consumption was 3.6 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L179] int pumpRunning = 0; [L180] int systemActive = 1; [L440] int cleanupTimeShifts = 4; [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int retValue_acc ; [L517] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] int splverifierCounter ; [L375] int tmp ; [L376] int tmp___0 ; [L377] int tmp___1 ; [L378] int tmp___2 ; [L381] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L383] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L385] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L391] tmp = __VERIFIER_nondet_int() [L393] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L401] tmp___0 = __VERIFIER_nondet_int() [L403] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] tmp___2 = __VERIFIER_nondet_int() [L413] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L193] COND TRUE \read(systemActive) [L241] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L244] COND FALSE !(\read(pumpRunning)) [L215] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L218] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L141] int tmp ; [L142] int tmp___0 ; [L143] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] tmp = isMethaneLevelCritical() [L149] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L153] tmp___0 = getWaterLevel() [L155] COND TRUE tmp___0 == 2 [L293] int retValue_acc ; [L296] retValue_acc = pumpRunning [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] tmp___1 = isPumpRunning() [L159] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product23.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 1160 SDslu, 768 SDs, 0 SdLazy, 116 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 567 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 10843 SizeOfPredicates, 6 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...