./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.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_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 ............................................................................................................................................ 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_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-28 07:37:43,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:37:43,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:37:43,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:37:43,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:37:43,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:37:43,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:37:43,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:37:43,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:37:43,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:37:43,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:37:43,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:37:43,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:37:43,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:37:43,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:37:43,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:37:43,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:37:43,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:37:43,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:37:43,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:37:43,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:37:43,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:37:43,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:37:43,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:37:43,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:37:43,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:37:43,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:37:43,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:37:43,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:37:43,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:37:43,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:37:43,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:37:43,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:37:43,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:37:43,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:37:43,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:37:43,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:37:43,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:37:43,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:37:43,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:37:43,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:37:43,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:37:43,674 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:37:43,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:37:43,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:37:43,678 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:37:43,678 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:37:43,678 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:37:43,678 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:37:43,678 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:37:43,679 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:37:43,679 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:37:43,680 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:37:43,680 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:37:43,680 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:37:43,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:37:43,680 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:37:43,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:37:43,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:37:43,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:37:43,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:37:43,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:37:43,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:37:43,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:37:43,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:37:43,683 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:37:43,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:37:43,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:37:43,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:37:43,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:37:43,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:37:43,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:37:43,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:37:43,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:43,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:37:43,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:37:43,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:37:43,686 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:37:43,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:37:43,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:37:43,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:37:43,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:37:43,687 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_b093828e-a960-46d3-afab-15065cf507de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 [2020-11-28 07:37:43,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:37:44,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:37:44,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:37:44,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:37:44,028 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:37:44,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-28 07:37:44,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/f95e6e15b/6d5eaf3a48804b86b49c9840bc3fbd55/FLAG3d5a0c474 [2020-11-28 07:37:44,635 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:37:44,636 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-28 07:37:44,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/f95e6e15b/6d5eaf3a48804b86b49c9840bc3fbd55/FLAG3d5a0c474 [2020-11-28 07:37:44,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/f95e6e15b/6d5eaf3a48804b86b49c9840bc3fbd55 [2020-11-28 07:37:44,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:37:44,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:37:44,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:44,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:37:44,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:37:44,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:44" (1/1) ... [2020-11-28 07:37:44,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fb5a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:44, skipping insertion in model container [2020-11-28 07:37:44,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:44" (1/1) ... [2020-11-28 07:37:44,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:37:45,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:45,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:45,409 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) [2020-11-28 07:37:45,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79232fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:45, skipping insertion in model container [2020-11-28 07:37:45,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:45,410 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:37:45,418 INFO L168 Benchmark]: Toolchain (without parser) took 435.89 ms. Allocated memory is still 96.5 MB. Free memory was 58.8 MB in the beginning and 70.4 MB in the end (delta: -11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:45,419 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 76.5 MB in the beginning and 76.4 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:45,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.45 ms. Allocated memory is still 96.5 MB. Free memory was 58.6 MB in the beginning and 70.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:45,423 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 76.5 MB in the beginning and 76.4 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 432.45 ms. Allocated memory is still 96.5 MB. Free memory was 58.6 MB in the beginning and 70.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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 [2020-11-28 07:37:47,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:37:47,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:37:47,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:37:47,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:37:47,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:37:47,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:37:47,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:37:47,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:37:47,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:37:47,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:37:47,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:37:47,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:37:47,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:37:47,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:37:47,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:37:47,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:37:47,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:37:47,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:37:47,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:37:47,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:37:47,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:37:47,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:37:47,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:37:47,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:37:47,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:37:47,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:37:47,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:37:47,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:37:47,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:37:47,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:37:47,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:37:47,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:37:47,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:37:47,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:37:47,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:37:47,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:37:47,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:37:47,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:37:47,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:37:47,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:37:47,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:37:47,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:37:47,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:37:47,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:37:47,818 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:37:47,818 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:37:47,818 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:37:47,818 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:37:47,819 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:37:47,819 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:37:47,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:37:47,820 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:37:47,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:37:47,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:37:47,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:37:47,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:37:47,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:37:47,821 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:37:47,821 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:37:47,822 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:37:47,822 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:37:47,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:37:47,822 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:37:47,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:37:47,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:37:47,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:37:47,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:37:47,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:37:47,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:47,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:37:47,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:37:47,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:37:47,825 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:37:47,825 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:37:47,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:37:47,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:37:47,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:37:47,826 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_b093828e-a960-46d3-afab-15065cf507de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 [2020-11-28 07:37:48,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:37:48,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:37:48,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:37:48,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:37:48,214 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:37:48,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-28 07:37:48,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/d6dc8d948/d759755c006a4e53ae4645466b4fa55e/FLAGc4203cebb [2020-11-28 07:37:48,876 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:37:48,877 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-28 07:37:48,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/d6dc8d948/d759755c006a4e53ae4645466b4fa55e/FLAGc4203cebb [2020-11-28 07:37:49,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/data/d6dc8d948/d759755c006a4e53ae4645466b4fa55e [2020-11-28 07:37:49,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:37:49,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:37:49,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:49,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:37:49,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:37:49,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:49" (1/1) ... [2020-11-28 07:37:49,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4986d9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:49, skipping insertion in model container [2020-11-28 07:37:49,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:49" (1/1) ... [2020-11-28 07:37:49,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:37:49,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:49,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:49,698 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:37:49,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:49,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:49,859 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:37:49,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:50,001 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:37:50,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50 WrapperNode [2020-11-28 07:37:50,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:50,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:50,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:37:50,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:37:50,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:50,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:37:50,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:37:50,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:37:50,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... [2020-11-28 07:37:50,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:37:50,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:37:50,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:37:50,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:37:50,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 [2020-11-28 07:37:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:37:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:37:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:37:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:37:52,653 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:37:52,653 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-28 07:37:52,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:52 BoogieIcfgContainer [2020-11-28 07:37:52,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:37:52,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:37:52,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:37:52,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:37:52,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:37:49" (1/3) ... [2020-11-28 07:37:52,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ba5700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:52, skipping insertion in model container [2020-11-28 07:37:52,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:50" (2/3) ... [2020-11-28 07:37:52,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ba5700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:52, skipping insertion in model container [2020-11-28 07:37:52,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:52" (3/3) ... [2020-11-28 07:37:52,663 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-11-28 07:37:52,674 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:37:52,679 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 07:37:52,690 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 07:37:52,713 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:37:52,713 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:37:52,713 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:37:52,714 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:37:52,714 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:37:52,714 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:37:52,714 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:37:52,714 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:37:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-28 07:37:52,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 07:37:52,738 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:52,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:52,739 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:52,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:52,746 INFO L82 PathProgramCache]: Analyzing trace with hash 444924915, now seen corresponding path program 1 times [2020-11-28 07:37:52,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:52,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193601596] [2020-11-28 07:37:52,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 [2020-11-28 07:37:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:53,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:37:53,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:53,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:37:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:53,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193601596] [2020-11-28 07:37:53,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:53,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:37:53,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289683892] [2020-11-28 07:37:53,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:37:53,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:37:53,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:37:53,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:37:53,093 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-11-28 07:37:53,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:53,130 INFO L93 Difference]: Finished difference Result 159 states and 236 transitions. [2020-11-28 07:37:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:37:53,132 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 07:37:53,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:53,145 INFO L225 Difference]: With dead ends: 159 [2020-11-28 07:37:53,145 INFO L226 Difference]: Without dead ends: 77 [2020-11-28 07:37:53,150 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 [2020-11-28 07:37:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-28 07:37:53,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-28 07:37:53,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-28 07:37:53,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-28 07:37:53,189 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2020-11-28 07:37:53,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:53,190 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-28 07:37:53,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:37:53,190 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2020-11-28 07:37:53,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 07:37:53,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:53,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:53,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:37:53,408 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:53,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:53,409 INFO L82 PathProgramCache]: Analyzing trace with hash -466105838, now seen corresponding path program 1 times [2020-11-28 07:37:53,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:53,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178673211] [2020-11-28 07:37:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 [2020-11-28 07:37:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:53,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:37:53,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:53,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:37:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:53,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178673211] [2020-11-28 07:37:53,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:53,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:37:53,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125536974] [2020-11-28 07:37:53,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:37:53,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:37:53,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:37:53,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:37:53,666 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 4 states. [2020-11-28 07:37:53,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:53,688 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2020-11-28 07:37:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:53,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-28 07:37:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:53,694 INFO L225 Difference]: With dead ends: 77 [2020-11-28 07:37:53,694 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 07:37:53,696 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 [2020-11-28 07:37:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 07:37:53,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 07:37:53,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 07:37:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-28 07:37:53,706 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-28 07:37:53,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:53,706 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-28 07:37:53,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:37:53,706 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-28 07:37:53,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:37:53,713 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:53,713 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] [2020-11-28 07:37:53,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:37:53,915 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:53,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:53,916 INFO L82 PathProgramCache]: Analyzing trace with hash -163835793, now seen corresponding path program 1 times [2020-11-28 07:37:53,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:53,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239873568] [2020-11-28 07:37:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 [2020-11-28 07:37:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:54,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:37:54,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:54,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:37:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:54,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239873568] [2020-11-28 07:37:54,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:54,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-28 07:37:54,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212106330] [2020-11-28 07:37:54,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:37:54,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:37:54,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:37:54,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:37:54,143 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 4 states. [2020-11-28 07:37:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:54,158 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2020-11-28 07:37:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:54,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-28 07:37:54,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:54,161 INFO L225 Difference]: With dead ends: 64 [2020-11-28 07:37:54,161 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 07:37:54,162 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 [2020-11-28 07:37:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 07:37:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 07:37:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 07:37:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2020-11-28 07:37:54,172 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2020-11-28 07:37:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:54,172 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2020-11-28 07:37:54,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:37:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2020-11-28 07:37:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:37:54,175 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:54,175 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] [2020-11-28 07:37:54,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:37:54,387 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:54,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:54,388 INFO L82 PathProgramCache]: Analyzing trace with hash 993963754, now seen corresponding path program 1 times [2020-11-28 07:37:54,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:54,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371364146] [2020-11-28 07:37:54,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 [2020-11-28 07:37:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:54,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:37:54,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:54,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:37:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:54,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371364146] [2020-11-28 07:37:54,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:54,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-28 07:37:54,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508726379] [2020-11-28 07:37:54,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:37:54,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:37:54,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:37:54,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:37:54,679 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 8 states. [2020-11-28 07:37:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:55,142 INFO L93 Difference]: Finished difference Result 340 states and 509 transitions. [2020-11-28 07:37:55,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 07:37:55,143 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-28 07:37:55,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:55,146 INFO L225 Difference]: With dead ends: 340 [2020-11-28 07:37:55,147 INFO L226 Difference]: Without dead ends: 311 [2020-11-28 07:37:55,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-28 07:37:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-11-28 07:37:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 84. [2020-11-28 07:37:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-28 07:37:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2020-11-28 07:37:55,182 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 25 [2020-11-28 07:37:55,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:55,183 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2020-11-28 07:37:55,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:37:55,183 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2020-11-28 07:37:55,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 07:37:55,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:55,185 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] [2020-11-28 07:37:55,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:37:55,399 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:55,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:55,399 INFO L82 PathProgramCache]: Analyzing trace with hash -965345236, now seen corresponding path program 1 times [2020-11-28 07:37:55,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:55,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262307971] [2020-11-28 07:37:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/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 [2020-11-28 07:37:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:56,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:58,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:58,230 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:37:58,230 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:37:58,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 07:37:58,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:37:58 BoogieIcfgContainer [2020-11-28 07:37:58,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:37:58,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:37:58,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:37:58,604 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:37:58,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:52" (3/4) ... [2020-11-28 07:37:58,608 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:37:58,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b093828e-a960-46d3-afab-15065cf507de/bin/utaipan/witness.graphml [2020-11-28 07:37:58,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:37:58,700 INFO L168 Benchmark]: Toolchain (without parser) took 9500.87 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 26.2 MB in the beginning and 45.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:58,700 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:58,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.15 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.0 MB in the beginning and 31.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:58,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.24 ms. Allocated memory is still 65.0 MB. Free memory was 30.8 MB in the beginning and 46.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:58,702 INFO L168 Benchmark]: Boogie Preprocessor took 73.50 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 43.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:58,703 INFO L168 Benchmark]: RCFGBuilder took 2489.12 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 43.6 MB in the beginning and 52.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:58,703 INFO L168 Benchmark]: TraceAbstraction took 5946.41 ms. Allocated memory is still 79.7 MB. Free memory was 52.7 MB in the beginning and 56.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:58,704 INFO L168 Benchmark]: Witness Printer took 93.58 ms. Allocated memory is still 79.7 MB. Free memory was 56.1 MB in the beginning and 45.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:58,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 801.15 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.0 MB in the beginning and 31.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.24 ms. Allocated memory is still 65.0 MB. Free memory was 30.8 MB in the beginning and 46.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.50 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 43.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2489.12 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 43.6 MB in the beginning and 52.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5946.41 ms. Allocated memory is still 79.7 MB. Free memory was 52.7 MB in the beginning and 56.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 93.58 ms. Allocated memory is still 79.7 MB. Free memory was 56.1 MB in the beginning and 45.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L584] int pumpRunning = 0; [L585] int systemActive = 1; [L737] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L814] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L820] tmp = valid_product() [L822] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int splverifierCounter ; [L517] int tmp ; [L518] int tmp___0 ; [L519] int tmp___1 ; [L520] int tmp___2 ; [L523] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] tmp = __VERIFIER_nondet_int() [L535] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L543] tmp___0 = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L553] tmp___2 = __VERIFIER_nondet_int() [L555] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] COND TRUE \read(systemActive) [L621] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L624] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L878] tmp = isMethaneLevelCritical() [L880] COND FALSE !(\read(tmp)) [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L884] tmp___0 = getWaterLevel() [L886] COND TRUE tmp___0 == 2 [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L888] tmp___1 = isPumpRunning() [L890] 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_product17.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, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 283 SDtfs, 683 SDslu, 413 SDs, 0 SdLazy, 93 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 227 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 10339 SizeOfPredicates, 6 NumberOfNonLiveVariables, 790 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...