./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product34.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_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 f18aab99c70cc7d44332259818cc5069ce850e66 ...................................................................................................................................... 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_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 f18aab99c70cc7d44332259818cc5069ce850e66 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:57:53,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:57:53,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:57:53,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:57:53,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:57:53,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:57:53,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:57:53,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:57:53,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:57:53,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:57:53,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:57:53,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:57:53,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:57:53,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:57:53,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:57:53,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:57:53,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:57:53,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:57:53,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:57:53,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:57:53,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:57:53,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:57:53,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:57:53,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:57:53,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:57:53,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:57:53,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:57:53,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:57:53,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:57:53,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:57:53,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:57:53,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:57:53,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:57:53,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:57:53,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:57:53,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:57:53,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:57:53,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:57:53,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:57:53,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:57:53,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:57:53,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:57:53,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:57:53,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:57:53,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:57:53,687 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:57:53,687 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:57:53,688 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:57:53,688 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:57:53,688 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:57:53,688 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:57:53,688 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:57:53,688 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:57:53,689 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:57:53,689 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:57:53,689 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:57:53,689 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:57:53,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:57:53,690 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:57:53,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:57:53,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:57:53,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:57:53,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:57:53,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:57:53,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:57:53,691 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:57:53,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:57:53,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:57:53,692 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:57:53,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:57:53,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:57:53,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:57:53,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:57:53,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:57:53,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:57:53,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:57:53,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:57:53,693 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:57:53,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:57:53,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:57:53,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:57:53,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:57:53,694 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_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 -> f18aab99c70cc7d44332259818cc5069ce850e66 [2019-12-07 20:57:53,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:57:53,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:57:53,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:57:53,813 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:57:53,814 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:57:53,814 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2019-12-07 20:57:53,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/b87d5922b/13889ed6f7b64c2a9d2792904676b0d6/FLAG8c2d2d3e9 [2019-12-07 20:57:54,220 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:57:54,221 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2019-12-07 20:57:54,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/b87d5922b/13889ed6f7b64c2a9d2792904676b0d6/FLAG8c2d2d3e9 [2019-12-07 20:57:54,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/b87d5922b/13889ed6f7b64c2a9d2792904676b0d6 [2019-12-07 20:57:54,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:57:54,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:57:54,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:57:54,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:57:54,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:57:54,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:57:54" (1/1) ... [2019-12-07 20:57:54,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c28c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:54, skipping insertion in model container [2019-12-07 20:57:54,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:57:54" (1/1) ... [2019-12-07 20:57:54,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:57:54,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:57:54,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:57:54,503 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 20:57:54,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f23a4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:54, skipping insertion in model container [2019-12-07 20:57:54,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:57:54,504 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:57:54,505 INFO L168 Benchmark]: Toolchain (without parser) took 260.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:57:54,506 INFO L168 Benchmark]: CDTParser took 0.13 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 20:57:54,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:57:54,508 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 357]: 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 20:57:55,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:57:55,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:57:55,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:57:55,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:57:55,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:57:55,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:57:55,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:57:55,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:57:55,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:57:55,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:57:55,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:57:55,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:57:55,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:57:55,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:57:55,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:57:55,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:57:55,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:57:55,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:57:55,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:57:55,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:57:55,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:57:55,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:57:55,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:57:55,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:57:55,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:57:55,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:57:55,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:57:55,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:57:55,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:57:55,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:57:55,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:57:55,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:57:55,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:57:55,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:57:55,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:57:55,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:57:55,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:57:55,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:57:55,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:57:55,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:57:55,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:57:55,653 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:57:55,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:57:55,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:57:55,654 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:57:55,654 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:57:55,654 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:57:55,654 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:57:55,654 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:57:55,654 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:57:55,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:57:55,655 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:57:55,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:57:55,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:57:55,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:57:55,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:57:55,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:57:55,656 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:57:55,656 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:57:55,656 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:57:55,656 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:57:55,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:57:55,657 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:57:55,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:57:55,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:57:55,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:57:55,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:57:55,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:57:55,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:57:55,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:57:55,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:57:55,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:57:55,658 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:57:55,658 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:57:55,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:57:55,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:57:55,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:57:55,659 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_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 -> f18aab99c70cc7d44332259818cc5069ce850e66 [2019-12-07 20:57:55,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:57:55,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:57:55,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:57:55,837 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:57:55,837 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:57:55,838 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2019-12-07 20:57:55,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/e90c57a93/ba747bf967074c86b0055edf6bfb9e74/FLAGbf83efb4c [2019-12-07 20:57:56,404 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:57:56,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2019-12-07 20:57:56,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/e90c57a93/ba747bf967074c86b0055edf6bfb9e74/FLAGbf83efb4c [2019-12-07 20:57:56,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/data/e90c57a93/ba747bf967074c86b0055edf6bfb9e74 [2019-12-07 20:57:56,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:57:56,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:57:56,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:57:56,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:57:56,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:57:56,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:57:56" (1/1) ... [2019-12-07 20:57:56,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:56, skipping insertion in model container [2019-12-07 20:57:56,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:57:56" (1/1) ... [2019-12-07 20:57:56,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:57:56,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:57:57,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:57:57,134 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:57:57,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:57:57,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:57:57,186 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:57:57,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:57:57,248 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:57:57,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57 WrapperNode [2019-12-07 20:57:57,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:57:57,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:57:57,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:57:57,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:57:57,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:57:57,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:57:57,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:57:57,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:57:57,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... [2019-12-07 20:57:57,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:57:57,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:57:57,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:57:57,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:57:57,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 20:57:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:57:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:57:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:57:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:57:57,806 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:57:57,806 INFO L287 CfgBuilder]: Removed 100 assume(true) statements. [2019-12-07 20:57:57,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:57:57 BoogieIcfgContainer [2019-12-07 20:57:57,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:57:57,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:57:57,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:57:57,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:57:57,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:57:56" (1/3) ... [2019-12-07 20:57:57,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319e54c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:57:57, skipping insertion in model container [2019-12-07 20:57:57,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:57:57" (2/3) ... [2019-12-07 20:57:57,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319e54c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:57:57, skipping insertion in model container [2019-12-07 20:57:57,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:57:57" (3/3) ... [2019-12-07 20:57:57,813 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2019-12-07 20:57:57,820 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:57:57,826 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:57:57,838 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:57:57,859 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:57:57,859 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:57:57,860 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:57:57,860 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:57:57,860 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:57:57,860 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:57:57,860 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:57:57,860 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:57:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-12-07 20:57:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 20:57:57,876 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:57:57,877 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 20:57:57,877 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:57:57,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:57:57,881 INFO L82 PathProgramCache]: Analyzing trace with hash -160768028, now seen corresponding path program 1 times [2019-12-07 20:57:57,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:57:57,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523007394] [2019-12-07 20:57:57,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 20:57:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:57:58,043 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:57:58,047 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:57:58,058 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 20:57:58,058 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:57:58,062 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 20:57:58,062 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523007394] [2019-12-07 20:57:58,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:57:58,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:57:58,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804624755] [2019-12-07 20:57:58,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:57:58,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:57:58,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:57:58,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:57:58,078 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 2 states. [2019-12-07 20:57:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:57:58,097 INFO L93 Difference]: Finished difference Result 157 states and 240 transitions. [2019-12-07 20:57:58,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:57:58,099 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 20:57:58,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:57:58,110 INFO L225 Difference]: With dead ends: 157 [2019-12-07 20:57:58,110 INFO L226 Difference]: Without dead ends: 78 [2019-12-07 20:57:58,113 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 20:57:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-12-07 20:57:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2019-12-07 20:57:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 20:57:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2019-12-07 20:57:58,147 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2019-12-07 20:57:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:57:58,148 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2019-12-07 20:57:58,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:57:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2019-12-07 20:57:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:57:58,149 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:57:58,149 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 20:57:58,349 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:57:58,350 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:57:58,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:57:58,351 INFO L82 PathProgramCache]: Analyzing trace with hash -379603997, now seen corresponding path program 1 times [2019-12-07 20:57:58,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:57:58,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100276598] [2019-12-07 20:57:58,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 20:57:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:57:58,617 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:57:58,618 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:57:58,630 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 20:57:58,630 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:57:58,638 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 20:57:58,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100276598] [2019-12-07 20:57:58,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:57:58,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:57:58,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090012799] [2019-12-07 20:57:58,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:57:58,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:57:58,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:57:58,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:57:58,640 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 4 states. [2019-12-07 20:57:58,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:57:58,650 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2019-12-07 20:57:58,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:57:58,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 20:57:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:57:58,652 INFO L225 Difference]: With dead ends: 78 [2019-12-07 20:57:58,652 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 20:57:58,653 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 20:57:58,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 20:57:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 20:57:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 20:57:58,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-12-07 20:57:58,657 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2019-12-07 20:57:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:57:58,657 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-12-07 20:57:58,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:57:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-12-07 20:57:58,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:57:58,658 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:57:58,658 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 20:57:58,858 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:57:58,859 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:57:58,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:57:58,859 INFO L82 PathProgramCache]: Analyzing trace with hash -301457865, now seen corresponding path program 1 times [2019-12-07 20:57:58,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:57:58,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997457788] [2019-12-07 20:57:58,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 20:57:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:57:58,974 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:57:58,975 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:57:58,984 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 20:57:58,984 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:57:58,991 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 20:57:58,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997457788] [2019-12-07 20:57:58,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:57:58,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:57:58,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571434693] [2019-12-07 20:57:58,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:57:58,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:57:58,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:57:58,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:57:58,993 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2019-12-07 20:57:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:57:59,029 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2019-12-07 20:57:59,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:57:59,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 20:57:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:57:59,030 INFO L225 Difference]: With dead ends: 65 [2019-12-07 20:57:59,030 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 20:57:59,031 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 20:57:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 20:57:59,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 20:57:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 20:57:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2019-12-07 20:57:59,037 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2019-12-07 20:57:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:57:59,037 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2019-12-07 20:57:59,037 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:57:59,037 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2019-12-07 20:57:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 20:57:59,038 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:57:59,038 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 20:57:59,239 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:57:59,240 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:57:59,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:57:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash -608954119, now seen corresponding path program 1 times [2019-12-07 20:57:59,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:57:59,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898099944] [2019-12-07 20:57:59,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 20:57:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:57:59,437 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:57:59,439 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:57:59,445 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 20:57:59,446 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:57:59,448 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 20:57:59,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898099944] [2019-12-07 20:57:59,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:57:59,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:57:59,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981009603] [2019-12-07 20:57:59,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:57:59,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:57:59,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:57:59,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:57:59,450 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2019-12-07 20:57:59,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:57:59,493 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2019-12-07 20:57:59,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:57:59,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 20:57:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:57:59,495 INFO L225 Difference]: With dead ends: 87 [2019-12-07 20:57:59,495 INFO L226 Difference]: Without dead ends: 58 [2019-12-07 20:57:59,496 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:57:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-07 20:57:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-12-07 20:57:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 20:57:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2019-12-07 20:57:59,502 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2019-12-07 20:57:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:57:59,502 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2019-12-07 20:57:59,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:57:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2019-12-07 20:57:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 20:57:59,503 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:57:59,503 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, 1, 1, 1, 1, 1] [2019-12-07 20:57:59,703 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:57:59,705 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:57:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:57:59,706 INFO L82 PathProgramCache]: Analyzing trace with hash -584147931, now seen corresponding path program 1 times [2019-12-07 20:57:59,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:57:59,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219031569] [2019-12-07 20:57:59,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/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 20:57:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:57:59,869 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:57:59,870 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:57:59,886 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 20:57:59,886 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:57:59,894 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 20:57:59,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219031569] [2019-12-07 20:57:59,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:57:59,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 20:57:59,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261216971] [2019-12-07 20:57:59,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:57:59,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:57:59,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:57:59,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:57:59,895 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2019-12-07 20:57:59,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:57:59,963 INFO L93 Difference]: Finished difference Result 254 states and 372 transitions. [2019-12-07 20:57:59,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 20:57:59,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 20:57:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:57:59,965 INFO L225 Difference]: With dead ends: 254 [2019-12-07 20:57:59,965 INFO L226 Difference]: Without dead ends: 205 [2019-12-07 20:57:59,965 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 20:57:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-12-07 20:57:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 97. [2019-12-07 20:57:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 20:57:59,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2019-12-07 20:57:59,975 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 31 [2019-12-07 20:57:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:57:59,976 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2019-12-07 20:57:59,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:57:59,976 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2019-12-07 20:57:59,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:57:59,977 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:57:59,977 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, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:00,177 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:58:00,178 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:00,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:00,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1078415005, now seen corresponding path program 1 times [2019-12-07 20:58:00,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:58:00,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573909404] [2019-12-07 20:58:00,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 20:58:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:58:00,337 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:58:00,339 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:58:00,353 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 20:58:00,354 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:58:00,357 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 20:58:00,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573909404] [2019-12-07 20:58:00,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:58:00,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:58:00,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599467545] [2019-12-07 20:58:00,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:58:00,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:58:00,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:58:00,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:58:00,359 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand 5 states. [2019-12-07 20:58:00,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:58:00,464 INFO L93 Difference]: Finished difference Result 346 states and 493 transitions. [2019-12-07 20:58:00,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 20:58:00,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 20:58:00,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:58:00,466 INFO L225 Difference]: With dead ends: 346 [2019-12-07 20:58:00,467 INFO L226 Difference]: Without dead ends: 256 [2019-12-07 20:58:00,467 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 20:58:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-12-07 20:58:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 96. [2019-12-07 20:58:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-12-07 20:58:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2019-12-07 20:58:00,483 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 133 transitions. Word has length 32 [2019-12-07 20:58:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:58:00,484 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 133 transitions. [2019-12-07 20:58:00,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:58:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 133 transitions. [2019-12-07 20:58:00,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:58:00,485 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:58:00,486 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, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:00,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:58:00,687 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:00,688 INFO L82 PathProgramCache]: Analyzing trace with hash 144951296, now seen corresponding path program 1 times [2019-12-07 20:58:00,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:58:00,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180938292] [2019-12-07 20:58:00,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 20:58:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:58:00,898 INFO L264 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:58:00,900 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:58:00,911 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 20:58:00,911 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:58:00,913 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 20:58:00,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180938292] [2019-12-07 20:58:00,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:58:00,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:58:00,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620133798] [2019-12-07 20:58:00,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:58:00,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:58:00,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:58:00,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:58:00,914 INFO L87 Difference]: Start difference. First operand 96 states and 133 transitions. Second operand 5 states. [2019-12-07 20:58:00,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:58:00,952 INFO L93 Difference]: Finished difference Result 245 states and 340 transitions. [2019-12-07 20:58:00,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:58:00,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 20:58:00,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:58:00,954 INFO L225 Difference]: With dead ends: 245 [2019-12-07 20:58:00,954 INFO L226 Difference]: Without dead ends: 156 [2019-12-07 20:58:00,954 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:58:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-12-07 20:58:00,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 102. [2019-12-07 20:58:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 20:58:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2019-12-07 20:58:00,968 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2019-12-07 20:58:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:58:00,968 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2019-12-07 20:58:00,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:58:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2019-12-07 20:58:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:58:00,969 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:58:00,969 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, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:01,170 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 20:58:01,171 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:01,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:01,172 INFO L82 PathProgramCache]: Analyzing trace with hash 846015874, now seen corresponding path program 1 times [2019-12-07 20:58:01,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:58:01,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085796412] [2019-12-07 20:58:01,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 20:58:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:58:01,295 INFO L264 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:58:01,297 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:58:01,304 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 20:58:01,304 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:58:01,314 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 20:58:01,314 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085796412] [2019-12-07 20:58:01,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:58:01,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 20:58:01,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773795113] [2019-12-07 20:58:01,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:58:01,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:58:01,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:58:01,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:58:01,315 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 6 states. [2019-12-07 20:58:01,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:58:01,344 INFO L93 Difference]: Finished difference Result 279 states and 379 transitions. [2019-12-07 20:58:01,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:58:01,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 20:58:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:58:01,345 INFO L225 Difference]: With dead ends: 279 [2019-12-07 20:58:01,345 INFO L226 Difference]: Without dead ends: 184 [2019-12-07 20:58:01,346 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:58:01,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-12-07 20:58:01,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 106. [2019-12-07 20:58:01,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-12-07 20:58:01,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2019-12-07 20:58:01,354 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2019-12-07 20:58:01,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:58:01,354 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2019-12-07 20:58:01,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:58:01,354 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2019-12-07 20:58:01,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:58:01,355 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:58:01,355 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, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:01,555 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 20:58:01,557 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:01,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:01,557 INFO L82 PathProgramCache]: Analyzing trace with hash 259209860, now seen corresponding path program 1 times [2019-12-07 20:58:01,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:58:01,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722471760] [2019-12-07 20:58:01,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 20:58:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:58:01,686 INFO L264 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:58:01,688 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:58:01,692 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 20:58:01,692 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:58:01,698 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 20:58:01,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722471760] [2019-12-07 20:58:01,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:58:01,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 20:58:01,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950453376] [2019-12-07 20:58:01,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:58:01,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:58:01,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:58:01,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:58:01,700 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 4 states. [2019-12-07 20:58:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:58:01,732 INFO L93 Difference]: Finished difference Result 338 states and 459 transitions. [2019-12-07 20:58:01,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:58:01,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-07 20:58:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:58:01,733 INFO L225 Difference]: With dead ends: 338 [2019-12-07 20:58:01,733 INFO L226 Difference]: Without dead ends: 239 [2019-12-07 20:58:01,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 20:58:01,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-12-07 20:58:01,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 189. [2019-12-07 20:58:01,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-12-07 20:58:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 254 transitions. [2019-12-07 20:58:01,748 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 254 transitions. Word has length 32 [2019-12-07 20:58:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:58:01,748 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 254 transitions. [2019-12-07 20:58:01,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:58:01,748 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 254 transitions. [2019-12-07 20:58:01,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 20:58:01,750 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:58:01,750 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:01,950 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 20:58:01,950 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:01,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:01,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1203693628, now seen corresponding path program 1 times [2019-12-07 20:58:01,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:58:01,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15980034] [2019-12-07 20:58:01,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 20:58:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:58:02,040 INFO L264 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:58:02,041 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:58:02,046 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 20:58:02,046 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:58:02,048 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 20:58:02,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15980034] [2019-12-07 20:58:02,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:58:02,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:58:02,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834505254] [2019-12-07 20:58:02,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:58:02,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:58:02,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:58:02,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:58:02,049 INFO L87 Difference]: Start difference. First operand 189 states and 254 transitions. Second operand 3 states. [2019-12-07 20:58:02,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:58:02,103 INFO L93 Difference]: Finished difference Result 307 states and 412 transitions. [2019-12-07 20:58:02,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:58:02,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-07 20:58:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:58:02,105 INFO L225 Difference]: With dead ends: 307 [2019-12-07 20:58:02,105 INFO L226 Difference]: Without dead ends: 305 [2019-12-07 20:58:02,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:58:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2019-12-07 20:58:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 239. [2019-12-07 20:58:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-12-07 20:58:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 328 transitions. [2019-12-07 20:58:02,119 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 328 transitions. Word has length 33 [2019-12-07 20:58:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:58:02,119 INFO L462 AbstractCegarLoop]: Abstraction has 239 states and 328 transitions. [2019-12-07 20:58:02,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:58:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 328 transitions. [2019-12-07 20:58:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 20:58:02,120 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:58:02,120 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:02,320 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 20:58:02,322 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:02,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:02,322 INFO L82 PathProgramCache]: Analyzing trace with hash -389004008, now seen corresponding path program 1 times [2019-12-07 20:58:02,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:58:02,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778524736] [2019-12-07 20:58:02,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 20:58:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:58:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:58:03,774 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:58:03,775 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:58:03,975 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 20:58:04,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:58:04 BoogieIcfgContainer [2019-12-07 20:58:04,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:58:04,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:58:04,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:58:04,086 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:58:04,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:57:57" (3/4) ... [2019-12-07 20:58:04,088 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:58:04,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7c7d98b9-ceb3-4b59-80d5-ca7400821c06/bin/utaipan/witness.graphml [2019-12-07 20:58:04,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:58:04,155 INFO L168 Benchmark]: Toolchain (without parser) took 7283.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 952.4 MB in the beginning and 927.7 MB in the end (delta: 24.7 MB). Peak memory consumption was 234.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:04,155 INFO L168 Benchmark]: CDTParser took 0.18 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 20:58:04,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:04,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.74 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:04,156 INFO L168 Benchmark]: Boogie Preprocessor took 28.04 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 20:58:04,156 INFO L168 Benchmark]: RCFGBuilder took 487.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:04,156 INFO L168 Benchmark]: TraceAbstraction took 6277.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.0 GB in the beginning and 950.5 MB in the end (delta: 77.0 MB). Peak memory consumption was 163.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:04,156 INFO L168 Benchmark]: Witness Printer took 67.70 ms. Allocated memory is still 1.2 GB. Free memory was 950.5 MB in the beginning and 927.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:04,158 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 376.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.74 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.04 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 487.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6277.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.0 GB in the beginning and 950.5 MB in the end (delta: 77.0 MB). Peak memory consumption was 163.6 MB. Max. memory is 11.5 GB. * Witness Printer took 67.70 ms. Allocated memory is still 1.2 GB. Free memory was 950.5 MB in the beginning and 927.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 249]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L255] int methAndRunningLastTime ; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L320] int retValue_acc ; [L323] retValue_acc = 1 [L324] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L260] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L706] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L714] tmp = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L181] COND FALSE !(\read(methaneLevelCritical)) [L184] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L920] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L772] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L779] COND TRUE \read(systemActive) [L801] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L804] COND TRUE ! pumpRunning [L898] int retValue_acc ; [L899] int tmp ; [L900] int tmp___0 ; [L231] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND FALSE !(waterLevel < 2) [L238] retValue_acc = 0 [L239] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L904] tmp = isHighWaterSensorDry() [L906] COND FALSE !(\read(tmp)) [L909] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L911] retValue_acc = tmp___0 [L912] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] tmp = isHighWaterLevel() [L808] COND TRUE \read(tmp) [L829] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L265] int tmp ; [L266] int tmp___0 ; [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L277] COND FALSE !(\read(methAndRunningLastTime)) [L282] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L706] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L708] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L920] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L772] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L779] COND TRUE \read(systemActive) [L801] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L804] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L265] int tmp ; [L266] int tmp___0 ; [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L277] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L249] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.1s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 656 SDtfs, 758 SDslu, 1037 SDs, 0 SdLazy, 120 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 552 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 518 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 27968 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1930 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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...