./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1610387a50b580a3de8e20f991e711af2b541458 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1610387a50b580a3de8e20f991e711af2b541458 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 10:24:47,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:24:47,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:24:47,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:24:47,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:24:47,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:24:47,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:24:47,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:24:47,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:24:47,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:24:47,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:24:47,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:24:47,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:24:47,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:24:47,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:24:47,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:24:47,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:24:47,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:24:47,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:24:47,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:24:47,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:24:47,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:24:47,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:24:47,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:24:47,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:24:47,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:24:47,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:24:47,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:24:47,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:24:47,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:24:47,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:24:47,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:24:47,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:24:47,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:24:47,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:24:47,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:24:47,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:24:47,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:24:47,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:24:47,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:24:47,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:24:47,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 10:24:47,637 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:24:47,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:24:47,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:24:47,638 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:24:47,638 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:24:47,639 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:24:47,639 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:24:47,639 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:24:47,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:24:47,639 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:24:47,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:24:47,640 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:24:47,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:24:47,640 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:24:47,640 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:24:47,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:24:47,641 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:24:47,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:24:47,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:24:47,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:24:47,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:24:47,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:24:47,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:24:47,642 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:24:47,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:24:47,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:24:47,643 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:24:47,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:24:47,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:24:47,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:24:47,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:24:47,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:24:47,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:24:47,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:24:47,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:24:47,644 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:24:47,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:24:47,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:24:47,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:24:47,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:24:47,645 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_225918fb-29b3-4d75-aee1-37d070bf76cb/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(__VERIFIER_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 -> 1610387a50b580a3de8e20f991e711af2b541458 [2019-12-07 10:24:47,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:24:47,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:24:47,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:24:47,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:24:47,760 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:24:47,760 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 10:24:47,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/e622fe006/86fa63fee61644f98189beaf66270da7/FLAG5e09495e3 [2019-12-07 10:24:48,168 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:24:48,169 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 10:24:48,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/e622fe006/86fa63fee61644f98189beaf66270da7/FLAG5e09495e3 [2019-12-07 10:24:48,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/e622fe006/86fa63fee61644f98189beaf66270da7 [2019-12-07 10:24:48,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:24:48,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:24:48,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:24:48,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:24:48,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:24:48,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:24:48" (1/1) ... [2019-12-07 10:24:48,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:48, skipping insertion in model container [2019-12-07 10:24:48,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:24:48" (1/1) ... [2019-12-07 10:24:48,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:24:48,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:24:48,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:24:48,438 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) [2019-12-07 10:24:48,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@505fd5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:48, skipping insertion in model container [2019-12-07 10:24:48,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:24:48,439 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:24:48,441 INFO L168 Benchmark]: Toolchain (without parser) took 251.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:24:48,441 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:24:48,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:24:48,443 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 417]: 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 0.1.25-f470102 [2019-12-07 10:24:49,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:24:49,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:24:49,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:24:49,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:24:49,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:24:49,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:24:49,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:24:49,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:24:49,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:24:49,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:24:49,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:24:49,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:24:49,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:24:49,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:24:49,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:24:49,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:24:49,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:24:49,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:24:49,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:24:49,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:24:49,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:24:49,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:24:49,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:24:49,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:24:49,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:24:49,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:24:49,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:24:49,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:24:49,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:24:49,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:24:49,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:24:49,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:24:49,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:24:49,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:24:49,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:24:49,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:24:49,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:24:49,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:24:49,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:24:49,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:24:49,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 10:24:49,617 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:24:49,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:24:49,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:24:49,617 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:24:49,618 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:24:49,618 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:24:49,618 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:24:49,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:24:49,618 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:24:49,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:24:49,619 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:24:49,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:24:49,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:24:49,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:24:49,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:24:49,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:24:49,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:24:49,620 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:24:49,620 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:24:49,620 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:24:49,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:24:49,620 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:24:49,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:24:49,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:24:49,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:24:49,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:24:49,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:24:49,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:24:49,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:24:49,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:24:49,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:24:49,621 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:24:49,622 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:24:49,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:24:49,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:24:49,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:24:49,622 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_225918fb-29b3-4d75-aee1-37d070bf76cb/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(__VERIFIER_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 -> 1610387a50b580a3de8e20f991e711af2b541458 [2019-12-07 10:24:49,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:24:49,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:24:49,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:24:49,819 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:24:49,819 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:24:49,819 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 10:24:49,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/a6018ed9c/11a502171ab443be8768258ea0eb2e33/FLAG929ee697d [2019-12-07 10:24:50,340 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:24:50,340 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 10:24:50,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/a6018ed9c/11a502171ab443be8768258ea0eb2e33/FLAG929ee697d [2019-12-07 10:24:50,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/data/a6018ed9c/11a502171ab443be8768258ea0eb2e33 [2019-12-07 10:24:50,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:24:50,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:24:50,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:24:50,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:24:50,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:24:50,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50, skipping insertion in model container [2019-12-07 10:24:50,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:24:50,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:24:50,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:24:50,630 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:24:50,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:24:50,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:24:50,685 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:24:50,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:24:50,755 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:24:50,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50 WrapperNode [2019-12-07 10:24:50,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:24:50,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:24:50,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:24:50,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:24:50,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:24:50,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:24:50,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:24:50,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:24:50,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... [2019-12-07 10:24:50,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:24:50,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:24:50,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:24:50,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:24:50,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/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 [2019-12-07 10:24:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:24:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 10:24:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:24:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:24:51,330 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:24:51,330 INFO L287 CfgBuilder]: Removed 106 assume(true) statements. [2019-12-07 10:24:51,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:24:51 BoogieIcfgContainer [2019-12-07 10:24:51,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:24:51,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:24:51,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:24:51,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:24:51,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:24:50" (1/3) ... [2019-12-07 10:24:51,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f41db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:24:51, skipping insertion in model container [2019-12-07 10:24:51,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:24:50" (2/3) ... [2019-12-07 10:24:51,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f41db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:24:51, skipping insertion in model container [2019-12-07 10:24:51,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:24:51" (3/3) ... [2019-12-07 10:24:51,338 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2019-12-07 10:24:51,347 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:24:51,354 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 10:24:51,364 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 10:24:51,386 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:24:51,386 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:24:51,386 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:24:51,387 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:24:51,387 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:24:51,387 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:24:51,387 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:24:51,387 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:24:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-12-07 10:24:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 10:24:51,403 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:24:51,404 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:24:51,404 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:24:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:24:51,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1047706522, now seen corresponding path program 1 times [2019-12-07 10:24:51,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:24:51,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18342587] [2019-12-07 10:24:51,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/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 [2019-12-07 10:24:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:24:51,572 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 10:24:51,576 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:24:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:51,586 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:24:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:51,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18342587] [2019-12-07 10:24:51,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:24:51,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 10:24:51,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667485449] [2019-12-07 10:24:51,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 10:24:51,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:24:51,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 10:24:51,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:24:51,611 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2019-12-07 10:24:51,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:24:51,633 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2019-12-07 10:24:51,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 10:24:51,635 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 10:24:51,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:24:51,644 INFO L225 Difference]: With dead ends: 160 [2019-12-07 10:24:51,644 INFO L226 Difference]: Without dead ends: 79 [2019-12-07 10:24:51,647 INFO L630 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 [2019-12-07 10:24:51,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-12-07 10:24:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-12-07 10:24:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-12-07 10:24:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2019-12-07 10:24:51,680 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2019-12-07 10:24:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:24:51,680 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2019-12-07 10:24:51,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 10:24:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2019-12-07 10:24:51,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 10:24:51,682 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:24:51,682 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:24:51,882 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:24:51,883 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:24:51,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:24:51,885 INFO L82 PathProgramCache]: Analyzing trace with hash 136675769, now seen corresponding path program 1 times [2019-12-07 10:24:51,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:24:51,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316226607] [2019-12-07 10:24:51,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/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 [2019-12-07 10:24:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:24:52,026 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:24:52,028 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:24:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:52,042 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:24:52,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:52,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316226607] [2019-12-07 10:24:52,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:24:52,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:24:52,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067123237] [2019-12-07 10:24:52,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:24:52,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:24:52,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:24:52,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:24:52,053 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 4 states. [2019-12-07 10:24:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:24:52,065 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2019-12-07 10:24:52,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:24:52,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 10:24:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:24:52,067 INFO L225 Difference]: With dead ends: 79 [2019-12-07 10:24:52,067 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 10:24:52,068 INFO L630 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 [2019-12-07 10:24:52,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 10:24:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 10:24:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 10:24:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-12-07 10:24:52,073 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2019-12-07 10:24:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:24:52,073 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-12-07 10:24:52,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:24:52,073 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-12-07 10:24:52,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 10:24:52,074 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:24:52,074 INFO L410 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] [2019-12-07 10:24:52,275 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:24:52,276 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:24:52,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:24:52,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1444562447, now seen corresponding path program 1 times [2019-12-07 10:24:52,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:24:52,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766269351] [2019-12-07 10:24:52,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/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 [2019-12-07 10:24:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:24:52,432 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:24:52,433 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:24:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:52,441 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:24:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:52,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766269351] [2019-12-07 10:24:52,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:24:52,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 10:24:52,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491758808] [2019-12-07 10:24:52,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:24:52,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:24:52,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:24:52,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:24:52,450 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 4 states. [2019-12-07 10:24:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:24:52,468 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2019-12-07 10:24:52,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:24:52,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 10:24:52,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:24:52,470 INFO L225 Difference]: With dead ends: 124 [2019-12-07 10:24:52,470 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 10:24:52,471 INFO L630 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 [2019-12-07 10:24:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 10:24:52,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2019-12-07 10:24:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 10:24:52,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-12-07 10:24:52,481 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2019-12-07 10:24:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:24:52,481 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-12-07 10:24:52,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:24:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-12-07 10:24:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 10:24:52,483 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:24:52,483 INFO L410 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] [2019-12-07 10:24:52,683 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:24:52,684 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:24:52,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:24:52,684 INFO L82 PathProgramCache]: Analyzing trace with hash -685298349, now seen corresponding path program 1 times [2019-12-07 10:24:52,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:24:52,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814282173] [2019-12-07 10:24:52,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/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 [2019-12-07 10:24:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:24:52,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:24:52,841 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:24:52,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:52,858 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:24:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:24:52,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814282173] [2019-12-07 10:24:52,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:24:52,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 10:24:52,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615372477] [2019-12-07 10:24:52,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:24:52,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:24:52,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:24:52,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:24:52,885 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 8 states. [2019-12-07 10:24:53,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:24:53,153 INFO L93 Difference]: Finished difference Result 602 states and 924 transitions. [2019-12-07 10:24:53,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 10:24:53,154 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 10:24:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:24:53,157 INFO L225 Difference]: With dead ends: 602 [2019-12-07 10:24:53,157 INFO L226 Difference]: Without dead ends: 550 [2019-12-07 10:24:53,158 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 10:24:53,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-12-07 10:24:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 148. [2019-12-07 10:24:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 10:24:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 214 transitions. [2019-12-07 10:24:53,178 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 214 transitions. Word has length 25 [2019-12-07 10:24:53,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:24:53,179 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 214 transitions. [2019-12-07 10:24:53,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:24:53,179 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 214 transitions. [2019-12-07 10:24:53,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 10:24:53,180 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:24:53,180 INFO L410 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] [2019-12-07 10:24:53,381 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 10:24:53,382 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:24:53,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:24:53,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1650359957, now seen corresponding path program 1 times [2019-12-07 10:24:53,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:24:53,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479621528] [2019-12-07 10:24:53,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/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 [2019-12-07 10:24:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:24:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:24:54,575 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 10:24:54,576 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:24:54,776 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 10:24:54,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:24:54 BoogieIcfgContainer [2019-12-07 10:24:54,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:24:54,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:24:54,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:24:54,868 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:24:54,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:24:51" (3/4) ... [2019-12-07 10:24:54,869 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:24:54,919 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_225918fb-29b3-4d75-aee1-37d070bf76cb/bin/utaipan/witness.graphml [2019-12-07 10:24:54,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:24:54,921 INFO L168 Benchmark]: Toolchain (without parser) took 4560.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -238.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:24:54,921 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:24:54,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:24:54,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:24:54,922 INFO L168 Benchmark]: Boogie Preprocessor took 34.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:24:54,922 INFO L168 Benchmark]: RCFGBuilder took 496.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:24:54,922 INFO L168 Benchmark]: TraceAbstraction took 3534.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -149.4 MB). Peak memory consumption was 228.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:24:54,922 INFO L168 Benchmark]: Witness Printer took 52.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:24:54,924 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 395.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 496.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3534.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -149.4 MB). Peak memory consumption was 228.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L917] int retValue_acc ; [L918] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] COND TRUE \read(systemActive) [L157] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 301 SDtfs, 591 SDslu, 721 SDs, 0 SdLazy, 126 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 437 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 10339 SizeOfPredicates, 6 NumberOfNonLiveVariables, 734 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...