./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.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_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/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 49ee68200af8723d15a4fe21e3a4e6e289306e92 ............................................................................................................................................ 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_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/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 49ee68200af8723d15a4fe21e3a4e6e289306e92 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:09:12,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:09:12,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:09:12,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:09:12,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:09:12,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:09:12,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:09:12,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:09:12,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:09:12,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:09:12,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:09:12,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:09:12,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:09:12,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:09:12,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:09:12,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:09:12,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:09:12,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:09:12,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:09:12,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:09:12,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:09:12,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:09:12,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:09:12,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:09:12,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:09:12,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:09:12,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:09:12,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:09:12,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:09:12,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:09:12,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:09:12,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:09:12,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:09:12,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:09:12,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:09:12,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:09:12,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:09:12,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:09:12,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:09:12,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:09:12,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:09:12,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:09:12,937 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:09:12,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:09:12,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:09:12,939 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:09:12,939 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:09:12,939 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:09:12,939 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:09:12,939 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:09:12,940 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:09:12,940 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:09:12,940 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:09:12,940 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:09:12,941 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:09:12,941 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:09:12,941 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:09:12,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:09:12,942 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:09:12,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:09:12,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:09:12,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:09:12,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:09:12,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:09:12,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:09:12,943 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:09:12,943 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:09:12,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:09:12,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:09:12,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:09:12,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:09:12,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:09:12,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:09:12,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:09:12,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:09:12,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:09:12,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:09:12,946 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:09:12,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:09:12,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:09:12,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:09:12,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:09:12,947 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_6dcef389-39c9-4052-8fdf-1c6fc447cf85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49ee68200af8723d15a4fe21e3a4e6e289306e92 [2020-11-22 13:09:13,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:09:13,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:09:13,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:09:13,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:09:13,206 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:09:13,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2020-11-22 13:09:13,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/2c07b6ba9/039e2fa9c79240588172c87c5ba8658b/FLAGfdd779fd6 [2020-11-22 13:09:13,748 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:09:13,749 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2020-11-22 13:09:13,760 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/2c07b6ba9/039e2fa9c79240588172c87c5ba8658b/FLAGfdd779fd6 [2020-11-22 13:09:14,076 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/2c07b6ba9/039e2fa9c79240588172c87c5ba8658b [2020-11-22 13:09:14,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:09:14,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:09:14,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:14,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:09:14,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:09:14,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:14" (1/1) ... [2020-11-22 13:09:14,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec44616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:14, skipping insertion in model container [2020-11-22 13:09:14,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:14" (1/1) ... [2020-11-22 13:09:14,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:09:14,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:14,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:14,459 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:09:14,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b4c7277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:14, skipping insertion in model container [2020-11-22 13:09:14,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:14,461 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:09:14,463 INFO L168 Benchmark]: Toolchain (without parser) took 381.08 ms. Allocated memory is still 86.0 MB. Free memory was 53.6 MB in the beginning and 60.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:14,464 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:14,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.52 ms. Allocated memory is still 86.0 MB. Free memory was 53.4 MB in the beginning and 60.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:14,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.52 ms. Allocated memory is still 86.0 MB. Free memory was 53.4 MB in the beginning and 60.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:09:16,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:09:16,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:09:16,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:09:16,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:09:16,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:09:16,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:09:16,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:09:16,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:09:16,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:09:16,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:09:16,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:09:16,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:09:16,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:09:16,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:09:16,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:09:16,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:09:16,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:09:16,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:09:16,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:09:16,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:09:16,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:09:16,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:09:16,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:09:16,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:09:16,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:09:16,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:09:16,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:09:16,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:09:16,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:09:16,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:09:16,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:09:16,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:09:16,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:09:16,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:09:16,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:09:16,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:09:16,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:09:16,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:09:16,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:09:16,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:09:16,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:09:16,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:09:16,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:09:16,852 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:09:16,852 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:09:16,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:09:16,852 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:09:16,853 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:09:16,853 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:09:16,853 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:09:16,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:09:16,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:09:16,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:09:16,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:09:16,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:09:16,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:09:16,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:09:16,856 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:09:16,856 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:09:16,856 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:09:16,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:09:16,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:09:16,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:09:16,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:09:16,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:09:16,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:09:16,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:09:16,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:09:16,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:09:16,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:09:16,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:09:16,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:09:16,860 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:09:16,860 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:09:16,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:09:16,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:09:16,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:09:16,861 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_6dcef389-39c9-4052-8fdf-1c6fc447cf85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49ee68200af8723d15a4fe21e3a4e6e289306e92 [2020-11-22 13:09:17,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:09:17,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:09:17,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:09:17,321 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:09:17,322 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:09:17,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2020-11-22 13:09:17,402 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/f41efbcbf/e2e78e0b84134141aa9fa03cf1ab5fbc/FLAG4f6504682 [2020-11-22 13:09:17,990 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:09:17,990 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2020-11-22 13:09:18,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/f41efbcbf/e2e78e0b84134141aa9fa03cf1ab5fbc/FLAG4f6504682 [2020-11-22 13:09:18,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/data/f41efbcbf/e2e78e0b84134141aa9fa03cf1ab5fbc [2020-11-22 13:09:18,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:09:18,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:09:18,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:18,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:09:18,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:09:18,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:18,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171b95e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18, skipping insertion in model container [2020-11-22 13:09:18,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:18,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:09:18,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:18,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:18,735 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:09:18,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:18,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:18,849 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:09:18,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:18,964 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:09:18,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18 WrapperNode [2020-11-22 13:09:18,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:18,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:18,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:09:18,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:09:18,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:19,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:09:19,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:09:19,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:09:19,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... [2020-11-22 13:09:19,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:09:19,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:09:19,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:09:19,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:09:19,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:09:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:09:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:09:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:09:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:09:21,512 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:09:21,513 INFO L298 CfgBuilder]: Removed 102 assume(true) statements. [2020-11-22 13:09:21,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:21 BoogieIcfgContainer [2020-11-22 13:09:21,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:09:21,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:09:21,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:09:21,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:09:21,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:18" (1/3) ... [2020-11-22 13:09:21,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f657a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:21, skipping insertion in model container [2020-11-22 13:09:21,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:18" (2/3) ... [2020-11-22 13:09:21,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f657a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:21, skipping insertion in model container [2020-11-22 13:09:21,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:21" (3/3) ... [2020-11-22 13:09:21,524 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-11-22 13:09:21,537 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:09:21,541 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:09:21,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:09:21,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:09:21,593 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:09:21,593 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:09:21,594 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:09:21,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:09:21,594 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:09:21,594 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:09:21,594 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:09:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-11-22 13:09:21,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:09:21,613 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:21,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:21,614 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:21,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:21,619 INFO L82 PathProgramCache]: Analyzing trace with hash 2080133685, now seen corresponding path program 1 times [2020-11-22 13:09:21,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:21,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092853038] [2020-11-22 13:09:21,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:21,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:09:21,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:21,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:21,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092853038] [2020-11-22 13:09:21,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:21,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:09:21,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397045713] [2020-11-22 13:09:21,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:09:21,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:21,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:09:21,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:09:21,928 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2020-11-22 13:09:21,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:21,952 INFO L93 Difference]: Finished difference Result 153 states and 230 transitions. [2020-11-22 13:09:21,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:09:21,953 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 13:09:21,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:21,968 INFO L225 Difference]: With dead ends: 153 [2020-11-22 13:09:21,968 INFO L226 Difference]: Without dead ends: 74 [2020-11-22 13:09:21,971 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 13:09:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-22 13:09:22,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-22 13:09:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-22 13:09:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-11-22 13:09:22,008 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2020-11-22 13:09:22,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:22,009 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-11-22 13:09:22,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:09:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-11-22 13:09:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:09:22,010 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:22,010 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 13:09:22,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:09:22,228 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:22,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:22,229 INFO L82 PathProgramCache]: Analyzing trace with hash 220788147, now seen corresponding path program 1 times [2020-11-22 13:09:22,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:22,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203810189] [2020-11-22 13:09:22,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:22,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:22,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:22,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:22,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:22,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:22,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203810189] [2020-11-22 13:09:22,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:22,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:09:22,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547420474] [2020-11-22 13:09:22,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:22,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:22,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:22,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:22,494 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 4 states. [2020-11-22 13:09:22,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:22,510 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2020-11-22 13:09:22,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:22,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:09:22,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:22,512 INFO L225 Difference]: With dead ends: 74 [2020-11-22 13:09:22,512 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:09:22,513 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 13:09:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:09:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:09:22,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:09:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-22 13:09:22,518 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2020-11-22 13:09:22,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:22,518 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-22 13:09:22,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:22,518 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-22 13:09:22,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:09:22,519 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:22,519 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 13:09:22,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:09:22,720 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:22,721 INFO L82 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2020-11-22 13:09:22,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:22,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379183755] [2020-11-22 13:09:22,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:22,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:22,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:22,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:22,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379183755] [2020-11-22 13:09:22,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:22,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:09:22,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413283778] [2020-11-22 13:09:22,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:22,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:22,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:22,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:22,948 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 4 states. [2020-11-22 13:09:22,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:22,956 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2020-11-22 13:09:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:22,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 13:09:22,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:22,958 INFO L225 Difference]: With dead ends: 62 [2020-11-22 13:09:22,958 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:09:22,959 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 13:09:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:09:22,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:09:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:09:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2020-11-22 13:09:22,964 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2020-11-22 13:09:22,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:22,965 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2020-11-22 13:09:22,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2020-11-22 13:09:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-22 13:09:22,966 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:22,966 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] [2020-11-22 13:09:23,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:09:23,191 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:23,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:23,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2020-11-22 13:09:23,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:23,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143075255] [2020-11-22 13:09:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:23,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:23,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:23,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:23,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:23,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143075255] [2020-11-22 13:09:23,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:23,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:09:23,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085142939] [2020-11-22 13:09:23,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:23,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:23,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:23,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:23,407 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2020-11-22 13:09:23,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:23,468 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2020-11-22 13:09:23,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:23,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-22 13:09:23,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:23,470 INFO L225 Difference]: With dead ends: 83 [2020-11-22 13:09:23,470 INFO L226 Difference]: Without dead ends: 55 [2020-11-22 13:09:23,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-22 13:09:23,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-11-22 13:09:23,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-22 13:09:23,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2020-11-22 13:09:23,479 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2020-11-22 13:09:23,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:23,480 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2020-11-22 13:09:23,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:23,480 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2020-11-22 13:09:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 13:09:23,481 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:23,481 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] [2020-11-22 13:09:23,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:09:23,698 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:23,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:23,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2020-11-22 13:09:23,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:23,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643940249] [2020-11-22 13:09:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:23,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:23,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:23,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:24,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643940249] [2020-11-22 13:09:24,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:24,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:09:24,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022868534] [2020-11-22 13:09:24,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:09:24,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:24,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:09:24,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:09:24,023 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2020-11-22 13:09:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:24,100 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2020-11-22 13:09:24,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:09:24,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-22 13:09:24,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:24,109 INFO L225 Difference]: With dead ends: 139 [2020-11-22 13:09:24,109 INFO L226 Difference]: Without dead ends: 92 [2020-11-22 13:09:24,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:09:24,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-22 13:09:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2020-11-22 13:09:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 13:09:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-11-22 13:09:24,123 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2020-11-22 13:09:24,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:24,124 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-11-22 13:09:24,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:09:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-11-22 13:09:24,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 13:09:24,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:24,125 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] [2020-11-22 13:09:24,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:09:24,338 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:24,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:24,338 INFO L82 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2020-11-22 13:09:24,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:24,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328667546] [2020-11-22 13:09:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:24,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:24,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:24,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:24,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:24,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328667546] [2020-11-22 13:09:24,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:24,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:09:24,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317877174] [2020-11-22 13:09:24,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:09:24,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:24,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:09:24,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:09:24,597 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2020-11-22 13:09:24,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:24,727 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2020-11-22 13:09:24,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:09:24,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-22 13:09:24,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:24,729 INFO L225 Difference]: With dead ends: 270 [2020-11-22 13:09:24,729 INFO L226 Difference]: Without dead ends: 220 [2020-11-22 13:09:24,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:09:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-11-22 13:09:24,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 100. [2020-11-22 13:09:24,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-22 13:09:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2020-11-22 13:09:24,749 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 29 [2020-11-22 13:09:24,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:24,750 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2020-11-22 13:09:24,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:09:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2020-11-22 13:09:24,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:09:24,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:24,751 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] [2020-11-22 13:09:24,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:09:24,958 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:24,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:24,959 INFO L82 PathProgramCache]: Analyzing trace with hash -863305781, now seen corresponding path program 1 times [2020-11-22 13:09:24,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:24,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269887939] [2020-11-22 13:09:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:25,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:25,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:25,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:25,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269887939] [2020-11-22 13:09:25,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:25,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:09:25,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187525564] [2020-11-22 13:09:25,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:09:25,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:25,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:09:25,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:09:25,236 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand 5 states. [2020-11-22 13:09:25,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:25,416 INFO L93 Difference]: Finished difference Result 280 states and 386 transitions. [2020-11-22 13:09:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:09:25,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:09:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:25,419 INFO L225 Difference]: With dead ends: 280 [2020-11-22 13:09:25,419 INFO L226 Difference]: Without dead ends: 278 [2020-11-22 13:09:25,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:09:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-22 13:09:25,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2020-11-22 13:09:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-22 13:09:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2020-11-22 13:09:25,439 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 30 [2020-11-22 13:09:25,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:25,439 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2020-11-22 13:09:25,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:09:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2020-11-22 13:09:25,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:09:25,441 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:25,441 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] [2020-11-22 13:09:25,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:09:25,659 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:25,660 INFO L82 PathProgramCache]: Analyzing trace with hash 376123462, now seen corresponding path program 1 times [2020-11-22 13:09:25,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:25,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027767809] [2020-11-22 13:09:25,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:25,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:09:25,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:25,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:25,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:25,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027767809] [2020-11-22 13:09:25,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:25,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:09:25,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208660981] [2020-11-22 13:09:25,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:09:25,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:25,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:09:25,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:09:25,889 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand 6 states. [2020-11-22 13:09:25,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:25,947 INFO L93 Difference]: Finished difference Result 276 states and 374 transitions. [2020-11-22 13:09:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:09:25,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-11-22 13:09:25,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:25,949 INFO L225 Difference]: With dead ends: 276 [2020-11-22 13:09:25,949 INFO L226 Difference]: Without dead ends: 182 [2020-11-22 13:09:25,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:09:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-11-22 13:09:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 104. [2020-11-22 13:09:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-22 13:09:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2020-11-22 13:09:25,978 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 30 [2020-11-22 13:09:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:25,979 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2020-11-22 13:09:25,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:09:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2020-11-22 13:09:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:09:25,981 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:25,982 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] [2020-11-22 13:09:26,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:09:26,197 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:26,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:26,198 INFO L82 PathProgramCache]: Analyzing trace with hash 634288900, now seen corresponding path program 1 times [2020-11-22 13:09:26,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:26,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821605566] [2020-11-22 13:09:26,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:26,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:26,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:26,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:26,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821605566] [2020-11-22 13:09:26,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:26,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:09:26,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849583029] [2020-11-22 13:09:26,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:26,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:26,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:26,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:26,406 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand 4 states. [2020-11-22 13:09:26,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:26,488 INFO L93 Difference]: Finished difference Result 334 states and 452 transitions. [2020-11-22 13:09:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:09:26,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-11-22 13:09:26,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:26,491 INFO L225 Difference]: With dead ends: 334 [2020-11-22 13:09:26,491 INFO L226 Difference]: Without dead ends: 236 [2020-11-22 13:09:26,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:26,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-11-22 13:09:26,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 186. [2020-11-22 13:09:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-22 13:09:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 249 transitions. [2020-11-22 13:09:26,528 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 249 transitions. Word has length 30 [2020-11-22 13:09:26,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:26,528 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 249 transitions. [2020-11-22 13:09:26,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:26,528 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 249 transitions. [2020-11-22 13:09:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:09:26,537 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:26,538 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 13:09:26,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:09:26,757 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:26,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1373527294, now seen corresponding path program 1 times [2020-11-22 13:09:26,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:26,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848328113] [2020-11-22 13:09:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:27,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:29,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:29,212 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:09:29,213 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:09:29,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:09:29,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:29 BoogieIcfgContainer [2020-11-22 13:09:29,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:09:29,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:09:29,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:09:29,595 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:09:29,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:21" (3/4) ... [2020-11-22 13:09:29,597 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:09:29,734 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6dcef389-39c9-4052-8fdf-1c6fc447cf85/bin/utaipan/witness.graphml [2020-11-22 13:09:29,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:09:29,736 INFO L168 Benchmark]: Toolchain (without parser) took 11458.36 ms. Allocated memory was 50.3 MB in the beginning and 94.4 MB in the end (delta: 44.0 MB). Free memory was 26.3 MB in the beginning and 67.1 MB in the end (delta: -40.8 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:29,737 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:29,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.89 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 36.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:29,738 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.24 ms. Allocated memory is still 62.9 MB. Free memory was 36.3 MB in the beginning and 33.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:29,738 INFO L168 Benchmark]: Boogie Preprocessor took 52.73 ms. Allocated memory is still 62.9 MB. Free memory was 33.4 MB in the beginning and 31.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:29,738 INFO L168 Benchmark]: RCFGBuilder took 2419.13 ms. Allocated memory is still 62.9 MB. Free memory was 31.1 MB in the beginning and 25.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:29,739 INFO L168 Benchmark]: TraceAbstraction took 8076.08 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 24.9 MB in the beginning and 43.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:29,739 INFO L168 Benchmark]: Witness Printer took 139.91 ms. Allocated memory is still 94.4 MB. Free memory was 43.0 MB in the beginning and 67.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:29,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.89 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 36.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.24 ms. Allocated memory is still 62.9 MB. Free memory was 36.3 MB in the beginning and 33.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.73 ms. Allocated memory is still 62.9 MB. Free memory was 33.4 MB in the beginning and 31.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2419.13 ms. Allocated memory is still 62.9 MB. Free memory was 31.1 MB in the beginning and 25.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8076.08 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 24.9 MB in the beginning and 43.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Witness Printer took 139.91 ms. Allocated memory is still 94.4 MB. Free memory was 43.0 MB in the beginning and 67.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L758] int retValue_acc ; [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L676] int retValue_acc ; [L679] retValue_acc = 1 [L680] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L583] int splverifierCounter ; [L584] int tmp ; [L585] int tmp___0 ; [L586] int tmp___1 ; [L587] int tmp___2 ; [L590] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L592] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] tmp = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L610] tmp___0 = __VERIFIER_nondet_int() [L612] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] COND FALSE !(\read(methaneLevelCritical)) [L841] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L620] tmp___2 = __VERIFIER_nondet_int() [L622] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) [L463] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L888] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L891] COND FALSE !(waterLevel < 2) [L895] retValue_acc = 0 [L896] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L491] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] int tmp ; [L783] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] tmp = isMethaneLevelCritical() [L789] COND TRUE \read(tmp) [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L791] tmp___0 = isPumpRunning() [L793] 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_product33.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, 81 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 583 SDtfs, 758 SDslu, 925 SDs, 0 SdLazy, 111 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 464 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 21627 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1818 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...