./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product01.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_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/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 0df1047e1b3c0d0ab9fe327b9db1c0dbac786684 ............................................................................................................................................ 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_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/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 0df1047e1b3c0d0ab9fe327b9db1c0dbac786684 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:07:49,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:49,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:49,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:49,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:49,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:49,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:49,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:49,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:49,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:49,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:49,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:49,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:49,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:49,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:49,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:49,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:49,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:49,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:49,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:49,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:49,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:49,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:49,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:49,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:49,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:49,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:49,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:49,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:49,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:49,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:49,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:49,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:49,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:49,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:49,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:49,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:49,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:49,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:49,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:49,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:49,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:07:49,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:49,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:49,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:49,307 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:49,307 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:49,307 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:49,308 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:07:49,308 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:49,308 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:49,308 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:07:49,309 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:07:49,309 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:49,309 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:07:49,309 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:07:49,310 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:07:49,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:49,310 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:49,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:49,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:49,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:49,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:49,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:49,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:49,312 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:49,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:49,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:49,313 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:49,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:49,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:49,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:49,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:49,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:49,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:49,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:49,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:49,315 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:07:49,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:07:49,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:49,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:49,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:49,316 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_df319543-0e43-406b-8617-a47c0cfed829/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0df1047e1b3c0d0ab9fe327b9db1c0dbac786684 [2020-11-22 13:07:49,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:49,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:49,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:49,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:49,610 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:49,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c [2020-11-22 13:07:49,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/d7d370f5b/f20866dbddcb4985a3baa120dfe391e8/FLAGb8028cdc6 [2020-11-22 13:07:50,144 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:50,145 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c [2020-11-22 13:07:50,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/d7d370f5b/f20866dbddcb4985a3baa120dfe391e8/FLAGb8028cdc6 [2020-11-22 13:07:50,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/d7d370f5b/f20866dbddcb4985a3baa120dfe391e8 [2020-11-22 13:07:50,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:50,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:50,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:50,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:50,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:50,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:50" (1/1) ... [2020-11-22 13:07:50,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2f56d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:50, skipping insertion in model container [2020-11-22 13:07:50,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:50" (1/1) ... [2020-11-22 13:07:50,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:50,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:50,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:50,852 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 13:07:50,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40b0b75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:50, skipping insertion in model container [2020-11-22 13:07:50,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:50,853 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:07:50,855 INFO L168 Benchmark]: Toolchain (without parser) took 355.26 ms. Allocated memory is still 98.6 MB. Free memory was 61.1 MB in the beginning and 72.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:50,856 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 98.6 MB. Free memory is still 78.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:50,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.69 ms. Allocated memory is still 98.6 MB. Free memory was 60.9 MB in the beginning and 72.1 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:50,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 98.6 MB. Free memory is still 78.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.69 ms. Allocated memory is still 98.6 MB. Free memory was 60.9 MB in the beginning and 72.1 MB in the end (delta: -11.3 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: 513]: 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 13:07:53,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:53,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:53,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:53,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:53,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:53,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:53,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:53,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:53,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:53,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:53,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:53,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:53,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:53,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:53,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:53,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:53,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:53,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:53,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:53,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:53,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:53,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:53,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:53,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:53,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:53,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:53,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:53,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:53,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:53,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:53,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:53,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:53,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:53,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:53,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:53,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:53,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:53,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:53,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:53,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:53,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:07:53,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:53,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:53,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:53,265 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:53,265 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:53,266 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:53,266 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:53,266 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:53,266 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:53,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:53,269 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:53,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:53,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:53,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:53,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:53,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:53,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:53,270 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:07:53,270 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:07:53,270 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:53,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:53,271 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:53,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:53,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:53,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:07:53,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:53,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:53,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:53,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:53,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:53,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:53,273 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:07:53,273 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:07:53,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:53,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:53,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:53,274 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_df319543-0e43-406b-8617-a47c0cfed829/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0df1047e1b3c0d0ab9fe327b9db1c0dbac786684 [2020-11-22 13:07:53,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:53,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:53,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:53,664 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:53,665 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:53,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c [2020-11-22 13:07:53,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/22e54a062/f5ed44ba6db2440185dce20404a0c27c/FLAG2236ab355 [2020-11-22 13:07:54,408 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:54,409 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c [2020-11-22 13:07:54,422 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/22e54a062/f5ed44ba6db2440185dce20404a0c27c/FLAG2236ab355 [2020-11-22 13:07:54,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/data/22e54a062/f5ed44ba6db2440185dce20404a0c27c [2020-11-22 13:07:54,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:54,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:54,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:54,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:54,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:54,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:54" (1/1) ... [2020-11-22 13:07:54,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6406a454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54, skipping insertion in model container [2020-11-22 13:07:54,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:54" (1/1) ... [2020-11-22 13:07:54,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:54,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:55,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:55,107 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:07:55,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:55,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:55,231 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:55,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:55,342 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:55,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55 WrapperNode [2020-11-22 13:07:55,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:55,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:55,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:55,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:55,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:55,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:55,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:55,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:55,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... [2020-11-22 13:07:55,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:55,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:55,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:55,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:55,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/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 13:07:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:07:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:57,924 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:07:57,925 INFO L298 CfgBuilder]: Removed 78 assume(true) statements. [2020-11-22 13:07:57,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:57 BoogieIcfgContainer [2020-11-22 13:07:57,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:07:57,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:07:57,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:07:57,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:07:57,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:54" (1/3) ... [2020-11-22 13:07:57,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f80ce80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:57, skipping insertion in model container [2020-11-22 13:07:57,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:55" (2/3) ... [2020-11-22 13:07:57,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f80ce80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:57, skipping insertion in model container [2020-11-22 13:07:57,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:57" (3/3) ... [2020-11-22 13:07:57,934 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-11-22 13:07:57,944 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:07:57,949 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:07:57,960 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:07:57,998 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:07:57,998 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:07:57,999 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:07:57,999 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:07:57,999 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:07:57,999 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:07:57,999 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:07:57,999 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:07:58,012 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-11-22 13:07:58,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:07:58,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:58,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:58,019 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:58,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:58,024 INFO L82 PathProgramCache]: Analyzing trace with hash 485436412, now seen corresponding path program 1 times [2020-11-22 13:07:58,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:58,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048974591] [2020-11-22 13:07:58,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/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 13:07:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:58,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:07:58,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:58,311 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 13:07:58,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:58,319 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 13:07:58,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048974591] [2020-11-22 13:07:58,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:58,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:07:58,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849020713] [2020-11-22 13:07:58,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:07:58,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:58,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:07:58,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:58,343 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2020-11-22 13:07:58,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:58,384 INFO L93 Difference]: Finished difference Result 123 states and 182 transitions. [2020-11-22 13:07:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:07:58,387 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:07:58,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:58,399 INFO L225 Difference]: With dead ends: 123 [2020-11-22 13:07:58,400 INFO L226 Difference]: Without dead ends: 59 [2020-11-22 13:07:58,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-22 13:07:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-22 13:07:58,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-22 13:07:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2020-11-22 13:07:58,449 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2020-11-22 13:07:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:58,450 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2020-11-22 13:07:58,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:07:58,450 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2020-11-22 13:07:58,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:07:58,451 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:58,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:58,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:07:58,672 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:58,673 INFO L82 PathProgramCache]: Analyzing trace with hash -425594341, now seen corresponding path program 1 times [2020-11-22 13:07:58,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:58,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264654263] [2020-11-22 13:07:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/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 13:07:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:58,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:07:58,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:58,895 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 13:07:58,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:58,906 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 13:07:58,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264654263] [2020-11-22 13:07:58,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:58,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:07:58,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910933585] [2020-11-22 13:07:58,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:58,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:58,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:58,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:58,909 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand 4 states. [2020-11-22 13:07:58,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:58,927 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2020-11-22 13:07:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:58,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:07:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:58,930 INFO L225 Difference]: With dead ends: 59 [2020-11-22 13:07:58,930 INFO L226 Difference]: Without dead ends: 29 [2020-11-22 13:07:58,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-22 13:07:58,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-22 13:07:58,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-22 13:07:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-11-22 13:07:58,943 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 19 [2020-11-22 13:07:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:58,944 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-11-22 13:07:58,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-11-22 13:07:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:07:58,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:58,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:59,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:07:59,164 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:59,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:59,165 INFO L82 PathProgramCache]: Analyzing trace with hash 274878546, now seen corresponding path program 1 times [2020-11-22 13:07:59,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:59,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556032950] [2020-11-22 13:07:59,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/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 13:07:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:59,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:07:59,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:59,380 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 13:07:59,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:59,418 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 13:07:59,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556032950] [2020-11-22 13:07:59,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:59,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:07:59,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754861567] [2020-11-22 13:07:59,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:07:59,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:59,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:07:59,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:59,420 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 8 states. [2020-11-22 13:07:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:59,811 INFO L93 Difference]: Finished difference Result 244 states and 381 transitions. [2020-11-22 13:07:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:07:59,815 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-11-22 13:07:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:59,818 INFO L225 Difference]: With dead ends: 244 [2020-11-22 13:07:59,818 INFO L226 Difference]: Without dead ends: 221 [2020-11-22 13:07:59,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:07:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-11-22 13:07:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 66. [2020-11-22 13:07:59,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-22 13:07:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2020-11-22 13:07:59,847 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 24 [2020-11-22 13:07:59,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:59,847 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2020-11-22 13:07:59,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:07:59,847 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2020-11-22 13:07:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:07:59,850 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:59,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:00,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:08:00,067 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:00,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:00,068 INFO L82 PathProgramCache]: Analyzing trace with hash -2143629616, now seen corresponding path program 1 times [2020-11-22 13:08:00,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:00,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326563809] [2020-11-22 13:08:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/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 13:08:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:01,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:02,641 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:02,783 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:08:02,784 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:03,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:08:03,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:03 BoogieIcfgContainer [2020-11-22 13:08:03,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:03,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:03,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:03,123 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:03,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:57" (3/4) ... [2020-11-22 13:08:03,125 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:08:03,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_df319543-0e43-406b-8617-a47c0cfed829/bin/utaipan/witness.graphml [2020-11-22 13:08:03,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:03,215 INFO L168 Benchmark]: Toolchain (without parser) took 8502.92 ms. Allocated memory was 50.3 MB in the beginning and 90.2 MB in the end (delta: 39.8 MB). Free memory was 25.7 MB in the beginning and 62.5 MB in the end (delta: -36.7 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:03,216 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 31.9 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:03,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.42 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 25.6 MB in the beginning and 33.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:03,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.72 ms. Allocated memory is still 65.0 MB. Free memory was 33.3 MB in the beginning and 46.7 MB in the end (delta: -13.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:03,217 INFO L168 Benchmark]: Boogie Preprocessor took 68.29 ms. Allocated memory is still 65.0 MB. Free memory was 46.7 MB in the beginning and 44.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:03,218 INFO L168 Benchmark]: RCFGBuilder took 2444.73 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 28.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:03,218 INFO L168 Benchmark]: TraceAbstraction took 5193.80 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 28.2 MB in the beginning and 31.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:03,219 INFO L168 Benchmark]: Witness Printer took 90.96 ms. Allocated memory is still 90.2 MB. Free memory was 31.5 MB in the beginning and 62.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:03,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 31.9 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.42 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 25.6 MB in the beginning and 33.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.72 ms. Allocated memory is still 65.0 MB. Free memory was 33.3 MB in the beginning and 46.7 MB in the end (delta: -13.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.29 ms. Allocated memory is still 65.0 MB. Free memory was 46.7 MB in the beginning and 44.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2444.73 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 28.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5193.80 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 28.2 MB in the beginning and 31.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * Witness Printer took 90.96 ms. Allocated memory is still 90.2 MB. Free memory was 31.5 MB in the beginning and 62.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L309] int cleanupTimeShifts = 4; [L405] int waterLevel = 1; [L406] int methaneLevelCritical = 0; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] int retValue_acc ; [L383] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L255] int retValue_acc ; [L258] retValue_acc = 1 [L259] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L389] tmp = valid_product() [L391] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L162] int splverifierCounter ; [L163] int tmp ; [L164] int tmp___0 ; [L165] int tmp___1 ; [L166] int tmp___2 ; [L169] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L171] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L173] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L179] tmp = __VERIFIER_nondet_int() [L181] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE waterLevel < 2 [L424] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] tmp___0 = __VERIFIER_nondet_int() [L191] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L199] tmp___2 = __VERIFIER_nondet_int() [L201] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L58] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L65] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L444] int retValue_acc ; [L447] retValue_acc = methaneLevelCritical [L448] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] tmp = isMethaneLevelCritical() [L275] COND FALSE !(\read(tmp)) [L476] int retValue_acc ; [L479] retValue_acc = waterLevel [L480] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L279] tmp___0 = getWaterLevel() [L281] COND TRUE tmp___0 == 2 [L113] int retValue_acc ; [L116] retValue_acc = pumpRunning [L117] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L283] tmp___1 = isPumpRunning() [L285] 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_product01.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, 66 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 186 SDtfs, 404 SDslu, 396 SDs, 0 SdLazy, 86 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 155 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 6384 SizeOfPredicates, 5 NumberOfNonLiveVariables, 589 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...