./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.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_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/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 609efdf4f988170ff745a87fec8ed7ede6211079 ............................................................................................................................................ 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_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/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 609efdf4f988170ff745a87fec8ed7ede6211079 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:41:44,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:44,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:44,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:44,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:44,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:44,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:44,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:44,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:44,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:44,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:44,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:44,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:44,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:44,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:44,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:44,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:44,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:44,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:44,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:44,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:44,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:44,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:44,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:44,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:44,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:44,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:44,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:45,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:45,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:45,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:45,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:45,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:45,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:45,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:45,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:45,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:45,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:45,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:45,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:45,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:45,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:41:45,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:45,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:45,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:45,043 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:45,043 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:45,043 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:45,044 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:41:45,044 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:45,044 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:45,044 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:41:45,046 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:41:45,046 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:45,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:41:45,047 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:41:45,047 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:41:45,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:45,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:41:45,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:41:45,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:41:45,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:45,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:41:45,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:45,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:41:45,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:41:45,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:41:45,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:41:45,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:45,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:41:45,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:45,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:45,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:45,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:45,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:45,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:45,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:41:45,055 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:41:45,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:41:45,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:41:45,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:45,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:45,057 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_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 609efdf4f988170ff745a87fec8ed7ede6211079 [2020-11-28 07:41:45,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:45,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:45,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:45,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:45,343 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:45,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-28 07:41:45,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/8d4966736/609407a20c054f14ac674a402045229c/FLAG574d52c10 [2020-11-28 07:41:46,014 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:46,015 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-28 07:41:46,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/8d4966736/609407a20c054f14ac674a402045229c/FLAG574d52c10 [2020-11-28 07:41:46,279 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/8d4966736/609407a20c054f14ac674a402045229c [2020-11-28 07:41:46,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:46,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:46,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:46,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:46,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:46,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:46" (1/1) ... [2020-11-28 07:41:46,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23022493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:46, skipping insertion in model container [2020-11-28 07:41:46,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:46" (1/1) ... [2020-11-28 07:41:46,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:46,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:46,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:46,784 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-28 07:41:46,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6068c58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:46, skipping insertion in model container [2020-11-28 07:41:46,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:46,788 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:41:46,791 INFO L168 Benchmark]: Toolchain (without parser) took 505.46 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 55.6 MB in the beginning and 83.6 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:46,792 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 88.1 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:46,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.51 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 55.6 MB in the beginning and 83.6 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:46,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 88.1 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.51 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 55.6 MB in the beginning and 83.6 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 498]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:41:49,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:49,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:49,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:49,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:49,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:49,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:49,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:49,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:49,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:49,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:49,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:49,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:49,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:49,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:49,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:49,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:49,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:49,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:49,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:49,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:49,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:49,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:49,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:49,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:49,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:49,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:49,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:49,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:49,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:49,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:49,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:49,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:49,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:49,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:49,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:49,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:49,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:49,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:49,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:49,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:49,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:41:49,223 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:49,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:49,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:49,226 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:49,226 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:49,226 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:49,227 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:49,227 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:49,227 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:49,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:49,230 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:41:49,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:41:49,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:49,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:41:49,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:49,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:41:49,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:41:49,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:41:49,232 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:41:49,232 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:41:49,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:41:49,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:49,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:41:49,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:49,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:41:49,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:49,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:49,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:49,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:49,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:49,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:41:49,235 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:41:49,235 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:41:49,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:41:49,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:49,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:49,236 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_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 609efdf4f988170ff745a87fec8ed7ede6211079 [2020-11-28 07:41:49,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:49,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:49,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:49,709 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:49,710 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:49,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-28 07:41:49,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/4229b8f68/1a6ea0b7863d45bda32897bb8b2adcf4/FLAGa238ae841 [2020-11-28 07:41:50,405 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:50,405 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-28 07:41:50,430 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/4229b8f68/1a6ea0b7863d45bda32897bb8b2adcf4/FLAGa238ae841 [2020-11-28 07:41:50,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/data/4229b8f68/1a6ea0b7863d45bda32897bb8b2adcf4 [2020-11-28 07:41:50,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:50,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:50,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:50,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:50,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:50,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:50" (1/1) ... [2020-11-28 07:41:50,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bc7a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:50, skipping insertion in model container [2020-11-28 07:41:50,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:50" (1/1) ... [2020-11-28 07:41:50,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:50,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:51,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:51,070 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:41:51,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:51,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:51,240 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:41:51,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:51,380 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:41:51,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51 WrapperNode [2020-11-28 07:41:51,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:51,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:51,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:41:51,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:41:51,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:51,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:41:51,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:41:51,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:41:51,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... [2020-11-28 07:41:51,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:41:51,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:41:51,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:41:51,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:41:51,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:41:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:41:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:41:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:41:54,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:54,216 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-11-28 07:41:54,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:54 BoogieIcfgContainer [2020-11-28 07:41:54,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:54,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:54,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:54,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:54,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:41:50" (1/3) ... [2020-11-28 07:41:54,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbc44cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:54, skipping insertion in model container [2020-11-28 07:41:54,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:51" (2/3) ... [2020-11-28 07:41:54,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbc44cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:54, skipping insertion in model container [2020-11-28 07:41:54,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:54" (3/3) ... [2020-11-28 07:41:54,228 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-11-28 07:41:54,242 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:54,247 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 07:41:54,260 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 07:41:54,292 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:54,292 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:41:54,292 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:54,293 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:54,293 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:54,293 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:54,293 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:54,293 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-28 07:41:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 07:41:54,316 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:54,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:54,317 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:54,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:54,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1818462071, now seen corresponding path program 1 times [2020-11-28 07:41:54,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:54,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688318868] [2020-11-28 07:41:54,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:54,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:41:54,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:41:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:54,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:41:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:54,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688318868] [2020-11-28 07:41:54,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:54,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:41:54,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630698408] [2020-11-28 07:41:54,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:41:54,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:41:54,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:41:54,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:41:54,634 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-28 07:41:54,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:54,670 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-28 07:41:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:41:54,673 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 07:41:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:54,687 INFO L225 Difference]: With dead ends: 223 [2020-11-28 07:41:54,687 INFO L226 Difference]: Without dead ends: 109 [2020-11-28 07:41:54,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:41:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-28 07:41:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-28 07:41:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-28 07:41:54,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-28 07:41:54,745 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-28 07:41:54,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:54,745 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-28 07:41:54,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:41:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-28 07:41:54,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 07:41:54,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:54,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:54,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:41:54,960 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:54,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:54,961 INFO L82 PathProgramCache]: Analyzing trace with hash 907431318, now seen corresponding path program 1 times [2020-11-28 07:41:54,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:54,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791973804] [2020-11-28 07:41:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:55,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:41:55,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:41:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:55,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:41:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:55,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791973804] [2020-11-28 07:41:55,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:55,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:41:55,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014644507] [2020-11-28 07:41:55,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:55,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:41:55,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:55,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:55,212 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 4 states. [2020-11-28 07:41:55,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:55,237 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-28 07:41:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:55,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-28 07:41:55,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:55,241 INFO L225 Difference]: With dead ends: 109 [2020-11-28 07:41:55,241 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 07:41:55,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 07:41:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 07:41:55,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 07:41:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-28 07:41:55,253 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-28 07:41:55,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:55,253 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-28 07:41:55,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:55,254 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-28 07:41:55,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:41:55,254 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:55,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:55,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:41:55,455 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:55,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:55,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-11-28 07:41:55,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:55,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028848176] [2020-11-28 07:41:55,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:55,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:41:55,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:41:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:55,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:41:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:55,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028848176] [2020-11-28 07:41:55,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:55,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:41:55,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546735613] [2020-11-28 07:41:55,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:55,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:41:55,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:55,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:55,661 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 4 states. [2020-11-28 07:41:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:55,738 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2020-11-28 07:41:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:55,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-28 07:41:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:55,740 INFO L225 Difference]: With dead ends: 154 [2020-11-28 07:41:55,740 INFO L226 Difference]: Without dead ends: 113 [2020-11-28 07:41:55,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-28 07:41:55,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2020-11-28 07:41:55,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 07:41:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-28 07:41:55,761 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2020-11-28 07:41:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:55,762 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-28 07:41:55,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:55,762 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-28 07:41:55,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 07:41:55,764 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:55,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:55,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:41:55,980 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:55,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:55,980 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-11-28 07:41:55,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:55,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095296015] [2020-11-28 07:41:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:56,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:41:56,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:41:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:56,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:41:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:56,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095296015] [2020-11-28 07:41:56,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:56,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-28 07:41:56,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421352091] [2020-11-28 07:41:56,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:41:56,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:41:56,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:41:56,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:41:56,255 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 8 states. [2020-11-28 07:41:56,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:56,676 INFO L93 Difference]: Finished difference Result 762 states and 1164 transitions. [2020-11-28 07:41:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 07:41:56,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-11-28 07:41:56,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:56,682 INFO L225 Difference]: With dead ends: 762 [2020-11-28 07:41:56,682 INFO L226 Difference]: Without dead ends: 700 [2020-11-28 07:41:56,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-28 07:41:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-11-28 07:41:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 178. [2020-11-28 07:41:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-28 07:41:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2020-11-28 07:41:56,748 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 26 [2020-11-28 07:41:56,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:56,748 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2020-11-28 07:41:56,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:41:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2020-11-28 07:41:56,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 07:41:56,756 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:56,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:56,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:41:56,980 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:56,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:56,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-11-28 07:41:56,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:56,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324305883] [2020-11-28 07:41:56,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:58,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:59,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:59,923 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:41:59,923 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:42:00,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 07:42:00,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:42:00 BoogieIcfgContainer [2020-11-28 07:42:00,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:42:00,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:42:00,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:42:00,297 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:42:00,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:54" (3/4) ... [2020-11-28 07:42:00,300 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:42:00,414 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cc3c2ca6-800b-43bc-85aa-9a531eadcb09/bin/utaipan/witness.graphml [2020-11-28 07:42:00,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:42:00,419 INFO L168 Benchmark]: Toolchain (without parser) took 9741.42 ms. Allocated memory was 52.4 MB in the beginning and 104.9 MB in the end (delta: 52.4 MB). Free memory was 28.0 MB in the beginning and 65.3 MB in the end (delta: -37.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:00,420 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 34.0 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:42:00,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.81 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 27.9 MB in the beginning and 35.6 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:00,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.38 ms. Allocated memory is still 67.1 MB. Free memory was 35.4 MB in the beginning and 31.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:00,423 INFO L168 Benchmark]: Boogie Preprocessor took 90.41 ms. Allocated memory is still 67.1 MB. Free memory was 31.9 MB in the beginning and 47.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:00,423 INFO L168 Benchmark]: RCFGBuilder took 2618.77 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 58.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:00,427 INFO L168 Benchmark]: TraceAbstraction took 6075.06 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 57.3 MB in the beginning and 75.8 MB in the end (delta: -18.5 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:00,427 INFO L168 Benchmark]: Witness Printer took 118.38 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 65.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:00,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 34.0 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 703.81 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 27.9 MB in the beginning and 35.6 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 124.38 ms. Allocated memory is still 67.1 MB. Free memory was 35.4 MB in the beginning and 31.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.41 ms. Allocated memory is still 67.1 MB. Free memory was 31.9 MB in the beginning and 47.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2618.77 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 58.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6075.06 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 57.3 MB in the beginning and 75.8 MB in the end (delta: -18.5 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. * Witness Printer took 118.38 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 65.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L371] int cleanupTimeShifts = 4; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] int retValue_acc ; [L448] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int retValue_acc ; [L954] retValue_acc = 1 [L955] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L454] tmp = valid_product() [L456] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] int splverifierCounter ; [L269] int tmp ; [L270] int tmp___0 ; [L271] int tmp___1 ; [L272] int tmp___2 ; [L275] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L277] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L279] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L285] tmp = __VERIFIER_nondet_int() [L287] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] COND TRUE waterLevel < 2 [L855] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L295] tmp___0 = __VERIFIER_nondet_int() [L297] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] tmp___2 = __VERIFIER_nondet_int() [L307] COND TRUE \read(tmp___2) [L259] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L70] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND TRUE \read(systemActive) [L125] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) [L99] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L102] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L344] tmp = isMethaneLevelCritical() [L346] COND FALSE !(\read(tmp)) [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L350] tmp___0 = getWaterLevel() [L352] COND TRUE tmp___0 == 2 [L177] int retValue_acc ; [L180] retValue_acc = pumpRunning [L181] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] tmp___1 = isPumpRunning() [L356] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product24.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 1191 SDslu, 766 SDs, 0 SdLazy, 116 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 567 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 8750 SizeOfPredicates, 6 NumberOfNonLiveVariables, 793 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...