./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.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_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/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 bde924d16b17f34a4892c0a089b602f0bd3cd51c ............................................................................................................................................ 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_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/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 bde924d16b17f34a4892c0a089b602f0bd3cd51c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:57:22,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:57:22,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:57:22,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:57:22,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:57:22,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:57:22,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:57:22,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:57:22,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:57:22,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:57:22,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:57:22,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:57:22,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:57:22,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:57:22,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:57:22,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:57:22,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:57:22,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:57:22,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:57:22,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:57:22,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:57:22,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:57:22,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:57:22,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:57:22,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:57:22,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:57:22,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:57:22,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:57:22,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:57:22,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:57:22,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:57:22,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:57:22,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:57:22,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:57:22,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:57:22,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:57:22,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:57:22,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:57:22,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:57:22,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:57:22,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:57:22,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:57:22,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:57:22,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:57:22,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:57:22,593 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:57:22,594 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:57:22,594 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:57:22,594 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:57:22,594 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:57:22,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:57:22,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:57:22,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:57:22,596 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:57:22,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:57:22,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:57:22,597 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:57:22,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:57:22,598 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:57:22,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:57:22,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:57:22,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:57:22,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:57:22,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:57:22,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:57:22,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:57:22,600 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:57:22,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:57:22,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:57:22,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:57:22,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:57:22,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:57:22,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:57:22,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:22,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:57:22,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:57:22,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:57:22,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:57:22,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:57:22,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:57:22,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:57:22,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:57:22,604 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_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde924d16b17f34a4892c0a089b602f0bd3cd51c [2020-11-22 12:57:22,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:57:22,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:57:22,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:57:22,946 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:57:22,947 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:57:22,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2020-11-22 12:57:23,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/35cb95e95/b582fe8424be425a8bcd6a22bfd0fd4a/FLAG484d8f7e1 [2020-11-22 12:57:23,578 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:57:23,579 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2020-11-22 12:57:23,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/35cb95e95/b582fe8424be425a8bcd6a22bfd0fd4a/FLAG484d8f7e1 [2020-11-22 12:57:23,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/35cb95e95/b582fe8424be425a8bcd6a22bfd0fd4a [2020-11-22 12:57:23,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:57:23,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:57:23,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:23,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:57:23,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:57:23,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:23" (1/1) ... [2020-11-22 12:57:23,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a468ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:23, skipping insertion in model container [2020-11-22 12:57:23,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:23" (1/1) ... [2020-11-22 12:57:23,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:57:24,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:57:24,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:24,401 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 12:57:24,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b24d85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:24, skipping insertion in model container [2020-11-22 12:57:24,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:24,403 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:57:24,406 INFO L168 Benchmark]: Toolchain (without parser) took 470.87 ms. Allocated memory is still 98.6 MB. Free memory was 62.1 MB in the beginning and 72.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:24,406 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:24,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.83 ms. Allocated memory is still 98.6 MB. Free memory was 61.8 MB in the beginning and 72.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:24,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 458.83 ms. Allocated memory is still 98.6 MB. Free memory was 61.8 MB in the beginning and 72.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 613]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:57:26,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:57:26,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:57:26,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:57:26,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:57:26,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:57:26,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:57:26,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:57:26,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:57:26,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:57:26,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:57:26,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:57:26,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:57:26,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:57:26,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:57:26,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:57:26,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:57:26,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:57:26,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:57:26,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:57:26,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:57:26,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:57:26,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:57:26,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:57:26,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:57:26,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:57:26,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:57:26,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:57:26,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:57:26,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:57:26,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:57:26,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:57:26,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:57:26,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:57:26,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:57:26,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:57:26,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:57:26,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:57:26,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:57:26,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:57:26,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:57:26,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:57:26,829 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:57:26,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:57:26,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:57:26,832 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:57:26,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:57:26,832 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:57:26,833 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:57:26,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:57:26,833 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:57:26,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:57:26,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:57:26,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:57:26,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:57:26,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:57:26,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:57:26,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:57:26,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:57:26,837 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:57:26,838 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:57:26,838 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:57:26,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:57:26,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:57:26,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:57:26,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:57:26,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:57:26,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:57:26,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:57:26,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:26,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:57:26,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:57:26,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:57:26,841 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:57:26,841 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:57:26,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:57:26,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:57:26,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:57:26,842 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_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde924d16b17f34a4892c0a089b602f0bd3cd51c [2020-11-22 12:57:27,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:57:27,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:57:27,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:57:27,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:57:27,321 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:57:27,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2020-11-22 12:57:27,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/fcb9d4b16/d08d4e09bec34cdaa3d3fa581c92237a/FLAGfb4742302 [2020-11-22 12:57:28,026 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:57:28,026 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2020-11-22 12:57:28,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/fcb9d4b16/d08d4e09bec34cdaa3d3fa581c92237a/FLAGfb4742302 [2020-11-22 12:57:28,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/data/fcb9d4b16/d08d4e09bec34cdaa3d3fa581c92237a [2020-11-22 12:57:28,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:57:28,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:57:28,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:28,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:57:28,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:57:28,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:28" (1/1) ... [2020-11-22 12:57:28,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2873b496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:28, skipping insertion in model container [2020-11-22 12:57:28,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:28" (1/1) ... [2020-11-22 12:57:28,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:57:28,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:57:28,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:28,775 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:57:28,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:57:28,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:28,870 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:57:28,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:29,021 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:57:29,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29 WrapperNode [2020-11-22 12:57:29,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:29,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:29,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:57:29,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:57:29,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:29,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:57:29,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:57:29,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:57:29,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... [2020-11-22 12:57:29,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:57:29,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:57:29,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:57:29,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:57:29,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:57:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:57:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:57:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:57:31,881 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:57:31,881 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-22 12:57:31,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:31 BoogieIcfgContainer [2020-11-22 12:57:31,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:57:31,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:57:31,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:57:31,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:57:31,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:57:28" (1/3) ... [2020-11-22 12:57:31,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c2b27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:31, skipping insertion in model container [2020-11-22 12:57:31,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:29" (2/3) ... [2020-11-22 12:57:31,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c2b27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:31, skipping insertion in model container [2020-11-22 12:57:31,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:31" (3/3) ... [2020-11-22 12:57:31,895 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-11-22 12:57:31,907 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:57:31,912 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:57:31,924 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:57:31,951 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:57:31,951 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:57:31,951 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:57:31,952 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:57:31,952 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:57:31,952 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:57:31,952 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:57:31,952 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:57:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-11-22 12:57:31,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:57:31,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:31,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:31,975 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:31,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:31,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1013956240, now seen corresponding path program 1 times [2020-11-22 12:57:31,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:31,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775330797] [2020-11-22 12:57:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:32,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:57:32,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:32,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:32,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775330797] [2020-11-22 12:57:32,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:32,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:57:32,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795903955] [2020-11-22 12:57:32,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:57:32,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:32,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:57:32,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:57:32,284 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 2 states. [2020-11-22 12:57:32,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:32,316 INFO L93 Difference]: Finished difference Result 235 states and 356 transitions. [2020-11-22 12:57:32,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:57:32,317 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 12:57:32,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:32,328 INFO L225 Difference]: With dead ends: 235 [2020-11-22 12:57:32,328 INFO L226 Difference]: Without dead ends: 115 [2020-11-22 12:57:32,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:57:32,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-22 12:57:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-22 12:57:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-22 12:57:32,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-11-22 12:57:32,382 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2020-11-22 12:57:32,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:32,382 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-11-22 12:57:32,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:57:32,383 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-11-22 12:57:32,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 12:57:32,384 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:32,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:32,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:57:32,602 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:32,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2060713137, now seen corresponding path program 1 times [2020-11-22 12:57:32,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:32,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909007974] [2020-11-22 12:57:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:32,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:57:32,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:32,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:32,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:32,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909007974] [2020-11-22 12:57:32,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:32,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:57:32,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675590092] [2020-11-22 12:57:32,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:57:32,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:32,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:57:32,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:32,884 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2020-11-22 12:57:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:32,907 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2020-11-22 12:57:32,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:57:32,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 12:57:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:32,912 INFO L225 Difference]: With dead ends: 115 [2020-11-22 12:57:32,913 INFO L226 Difference]: Without dead ends: 49 [2020-11-22 12:57:32,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-22 12:57:32,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-22 12:57:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-22 12:57:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2020-11-22 12:57:32,931 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2020-11-22 12:57:32,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:32,933 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2020-11-22 12:57:32,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:57:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2020-11-22 12:57:32,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 12:57:32,937 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:32,937 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] [2020-11-22 12:57:33,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:57:33,154 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:33,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:33,155 INFO L82 PathProgramCache]: Analyzing trace with hash -2061312917, now seen corresponding path program 1 times [2020-11-22 12:57:33,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:33,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54404970] [2020-11-22 12:57:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:33,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:57:33,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:33,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:33,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54404970] [2020-11-22 12:57:33,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:33,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:57:33,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297268022] [2020-11-22 12:57:33,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:57:33,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:33,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:57:33,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:33,391 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 4 states. [2020-11-22 12:57:33,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:33,453 INFO L93 Difference]: Finished difference Result 158 states and 235 transitions. [2020-11-22 12:57:33,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:57:33,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 12:57:33,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:33,455 INFO L225 Difference]: With dead ends: 158 [2020-11-22 12:57:33,455 INFO L226 Difference]: Without dead ends: 115 [2020-11-22 12:57:33,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:33,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-22 12:57:33,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 68. [2020-11-22 12:57:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-22 12:57:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2020-11-22 12:57:33,474 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2020-11-22 12:57:33,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:33,474 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2020-11-22 12:57:33,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:57:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2020-11-22 12:57:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:57:33,476 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:33,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:33,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:57:33,691 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:33,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1499976397, now seen corresponding path program 1 times [2020-11-22 12:57:33,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:33,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732341824] [2020-11-22 12:57:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:33,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:57:33,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:33,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:33,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732341824] [2020-11-22 12:57:33,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:33,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:57:33,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240351932] [2020-11-22 12:57:33,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:57:33,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:33,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:57:33,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:33,933 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand 3 states. [2020-11-22 12:57:34,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:34,029 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2020-11-22 12:57:34,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:57:34,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-22 12:57:34,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:34,030 INFO L225 Difference]: With dead ends: 151 [2020-11-22 12:57:34,030 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 12:57:34,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:34,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 12:57:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2020-11-22 12:57:34,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-22 12:57:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2020-11-22 12:57:34,043 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2020-11-22 12:57:34,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:34,044 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2020-11-22 12:57:34,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:57:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2020-11-22 12:57:34,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:57:34,045 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:34,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:34,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:57:34,246 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:34,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2020-11-22 12:57:34,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:34,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240994207] [2020-11-22 12:57:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:34,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:57:34,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:34,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:34,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240994207] [2020-11-22 12:57:34,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:34,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:57:34,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914491463] [2020-11-22 12:57:34,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:57:34,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:34,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:57:34,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:57:34,472 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 5 states. [2020-11-22 12:57:34,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:34,609 INFO L93 Difference]: Finished difference Result 445 states and 650 transitions. [2020-11-22 12:57:34,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:57:34,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-22 12:57:34,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:34,614 INFO L225 Difference]: With dead ends: 445 [2020-11-22 12:57:34,614 INFO L226 Difference]: Without dead ends: 364 [2020-11-22 12:57:34,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:57:34,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-11-22 12:57:34,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 160. [2020-11-22 12:57:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-22 12:57:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 226 transitions. [2020-11-22 12:57:34,662 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 226 transitions. Word has length 25 [2020-11-22 12:57:34,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:34,663 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 226 transitions. [2020-11-22 12:57:34,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:57:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 226 transitions. [2020-11-22 12:57:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 12:57:34,668 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:34,668 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 12:57:34,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:57:34,881 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:34,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:34,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1475071754, now seen corresponding path program 1 times [2020-11-22 12:57:34,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:34,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248979627] [2020-11-22 12:57:34,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:35,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:57:35,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:35,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:35,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248979627] [2020-11-22 12:57:35,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:35,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:57:35,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671340199] [2020-11-22 12:57:35,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:57:35,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:35,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:57:35,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:57:35,084 INFO L87 Difference]: Start difference. First operand 160 states and 226 transitions. Second operand 5 states. [2020-11-22 12:57:35,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:35,332 INFO L93 Difference]: Finished difference Result 448 states and 637 transitions. [2020-11-22 12:57:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:57:35,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-22 12:57:35,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:35,336 INFO L225 Difference]: With dead ends: 448 [2020-11-22 12:57:35,336 INFO L226 Difference]: Without dead ends: 446 [2020-11-22 12:57:35,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:57:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-11-22 12:57:35,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 160. [2020-11-22 12:57:35,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-22 12:57:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 224 transitions. [2020-11-22 12:57:35,367 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 224 transitions. Word has length 26 [2020-11-22 12:57:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:35,367 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 224 transitions. [2020-11-22 12:57:35,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:57:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 224 transitions. [2020-11-22 12:57:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 12:57:35,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:35,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:35,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:57:35,584 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:35,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:35,585 INFO L82 PathProgramCache]: Analyzing trace with hash 317568404, now seen corresponding path program 1 times [2020-11-22 12:57:35,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:35,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216235211] [2020-11-22 12:57:35,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:35,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:57:35,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:35,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:35,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216235211] [2020-11-22 12:57:35,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:35,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:57:35,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111029799] [2020-11-22 12:57:35,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:57:35,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:35,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:57:35,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:57:35,795 INFO L87 Difference]: Start difference. First operand 160 states and 224 transitions. Second operand 5 states. [2020-11-22 12:57:35,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:35,892 INFO L93 Difference]: Finished difference Result 476 states and 660 transitions. [2020-11-22 12:57:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:57:35,893 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 12:57:35,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:35,895 INFO L225 Difference]: With dead ends: 476 [2020-11-22 12:57:35,896 INFO L226 Difference]: Without dead ends: 322 [2020-11-22 12:57:35,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:57:35,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-11-22 12:57:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 172. [2020-11-22 12:57:35,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-22 12:57:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 236 transitions. [2020-11-22 12:57:35,941 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 236 transitions. Word has length 31 [2020-11-22 12:57:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:35,945 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 236 transitions. [2020-11-22 12:57:35,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:57:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 236 transitions. [2020-11-22 12:57:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 12:57:35,948 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:35,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:36,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:57:36,169 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:36,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:36,170 INFO L82 PathProgramCache]: Analyzing trace with hash -75458606, now seen corresponding path program 1 times [2020-11-22 12:57:36,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:36,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44702690] [2020-11-22 12:57:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:36,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:57:36,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:36,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:36,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:36,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44702690] [2020-11-22 12:57:36,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:36,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:57:36,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644523726] [2020-11-22 12:57:36,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:57:36,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:36,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:57:36,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:57:36,380 INFO L87 Difference]: Start difference. First operand 172 states and 236 transitions. Second operand 6 states. [2020-11-22 12:57:36,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:36,484 INFO L93 Difference]: Finished difference Result 510 states and 694 transitions. [2020-11-22 12:57:36,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:57:36,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-22 12:57:36,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:36,487 INFO L225 Difference]: With dead ends: 510 [2020-11-22 12:57:36,487 INFO L226 Difference]: Without dead ends: 344 [2020-11-22 12:57:36,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:57:36,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-11-22 12:57:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 180. [2020-11-22 12:57:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-22 12:57:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 244 transitions. [2020-11-22 12:57:36,515 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 244 transitions. Word has length 31 [2020-11-22 12:57:36,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:36,515 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 244 transitions. [2020-11-22 12:57:36,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:57:36,516 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 244 transitions. [2020-11-22 12:57:36,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 12:57:36,516 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:36,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:36,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:57:36,730 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:36,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:36,732 INFO L82 PathProgramCache]: Analyzing trace with hash 182706832, now seen corresponding path program 1 times [2020-11-22 12:57:36,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:36,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376495346] [2020-11-22 12:57:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:36,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:57:36,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:37,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:37,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376495346] [2020-11-22 12:57:37,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:37,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:57:37,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795672254] [2020-11-22 12:57:37,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:57:37,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:37,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:57:37,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:37,019 INFO L87 Difference]: Start difference. First operand 180 states and 244 transitions. Second operand 4 states. [2020-11-22 12:57:37,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:37,120 INFO L93 Difference]: Finished difference Result 588 states and 800 transitions. [2020-11-22 12:57:37,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:57:37,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-22 12:57:37,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:37,123 INFO L225 Difference]: With dead ends: 588 [2020-11-22 12:57:37,123 INFO L226 Difference]: Without dead ends: 414 [2020-11-22 12:57:37,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:37,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-11-22 12:57:37,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 324. [2020-11-22 12:57:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-11-22 12:57:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 435 transitions. [2020-11-22 12:57:37,173 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 435 transitions. Word has length 31 [2020-11-22 12:57:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:37,173 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 435 transitions. [2020-11-22 12:57:37,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:57:37,173 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 435 transitions. [2020-11-22 12:57:37,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:57:37,174 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:37,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:37,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:57:37,390 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:37,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:37,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1930053038, now seen corresponding path program 1 times [2020-11-22 12:57:37,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:37,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558488380] [2020-11-22 12:57:37,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:57:38,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:57:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:57:39,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:57:40,042 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:57:40,042 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:57:40,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 12:57:40,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:57:40 BoogieIcfgContainer [2020-11-22 12:57:40,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:57:40,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:57:40,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:57:40,412 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:57:40,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:31" (3/4) ... [2020-11-22 12:57:40,414 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:57:40,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d73cd75f-c61c-4283-8d6f-0b1a54b5f789/bin/utaipan/witness.graphml [2020-11-22 12:57:40,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:57:40,526 INFO L168 Benchmark]: Toolchain (without parser) took 12208.20 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 27.3 MB in the beginning and 38.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:40,527 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 33.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:40,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.04 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.1 MB in the beginning and 31.8 MB in the end (delta: -4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:40,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.09 ms. Allocated memory is still 65.0 MB. Free memory was 31.8 MB in the beginning and 47.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:40,528 INFO L168 Benchmark]: Boogie Preprocessor took 96.35 ms. Allocated memory is still 65.0 MB. Free memory was 47.9 MB in the beginning and 45.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:40,529 INFO L168 Benchmark]: RCFGBuilder took 2631.60 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 45.0 MB in the beginning and 65.0 MB in the end (delta: -20.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:40,529 INFO L168 Benchmark]: TraceAbstraction took 8523.89 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 51.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:40,529 INFO L168 Benchmark]: Witness Printer took 110.83 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 38.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:40,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 33.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 703.04 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.1 MB in the beginning and 31.8 MB in the end (delta: -4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 132.09 ms. Allocated memory is still 65.0 MB. Free memory was 31.8 MB in the beginning and 47.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.35 ms. Allocated memory is still 65.0 MB. Free memory was 47.9 MB in the beginning and 45.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2631.60 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 45.0 MB in the beginning and 65.0 MB in the end (delta: -20.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8523.89 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 51.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * Witness Printer took 110.83 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 38.5 MB in the end (delta: 13.0 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: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L460] int cleanupTimeShifts = 4; [L754] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L977] int retValue_acc ; [L980] retValue_acc = 1 [L981] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] tmp = valid_product() [L545] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] int splverifierCounter ; [L393] int tmp ; [L394] int tmp___0 ; [L395] int tmp___1 ; [L396] int tmp___2 ; [L399] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L401] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L403] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] tmp = __VERIFIER_nondet_int() [L411] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L419] tmp___0 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L80] COND FALSE !(\read(methaneLevelCritical)) [L83] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L429] tmp___2 = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp___2) [L376] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L168] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L175] COND TRUE \read(systemActive) [L223] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L226] COND FALSE !(\read(pumpRunning)) [L197] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] COND TRUE ! pumpRunning [L320] int retValue_acc ; [L321] int tmp ; [L322] int tmp___0 ; [L130] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L133] COND FALSE !(waterLevel < 2) [L137] retValue_acc = 0 [L138] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L326] tmp = isHighWaterSensorDry() [L328] COND FALSE !(\read(tmp)) [L331] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L333] retValue_acc = tmp___0 [L334] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L202] tmp = isHighWaterLevel() [L204] COND TRUE \read(tmp) [L251] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L560] int tmp ; [L561] int tmp___0 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] tmp = isMethaneLevelCritical() [L567] COND TRUE \read(tmp) [L275] int retValue_acc ; [L278] retValue_acc = pumpRunning [L279] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L569] tmp___0 = isPumpRunning() [L571] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product52.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 890 SDtfs, 1305 SDslu, 1446 SDs, 0 SdLazy, 170 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 943 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 18358 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1815 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...