./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.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_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c ...................................................................................................................................... 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_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:53:40,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:53:40,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:53:40,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:53:40,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:53:40,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:53:40,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:53:40,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:53:40,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:53:40,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:53:40,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:53:40,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:53:40,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:53:40,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:53:40,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:53:40,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:53:40,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:53:40,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:53:40,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:53:40,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:53:40,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:53:40,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:53:40,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:53:40,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:53:40,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:53:40,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:53:40,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:53:40,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:53:40,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:53:40,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:53:40,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:53:40,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:53:40,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:53:40,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:53:40,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:53:40,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:53:40,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:53:40,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:53:40,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:53:40,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:53:40,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:53:40,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:53:40,678 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:53:40,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:53:40,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:53:40,680 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:53:40,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:53:40,680 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:53:40,680 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:53:40,680 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:53:40,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:53:40,681 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:53:40,681 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:53:40,681 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:53:40,681 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:53:40,681 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:53:40,682 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:53:40,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:53:40,682 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:53:40,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:53:40,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:53:40,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:53:40,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:53:40,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:53:40,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:53:40,684 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:53:40,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:53:40,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:53:40,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:53:40,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:53:40,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:53:40,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:53:40,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:53:40,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:53:40,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:53:40,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:53:40,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:53:40,686 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:53:40,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:53:40,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:53:40,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:53:40,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:53:40,687 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_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 -> 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c [2019-12-07 21:53:40,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:53:40,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:53:40,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:53:40,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:53:40,807 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:53:40,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2019-12-07 21:53:40,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/046aef754/f9c769dd064a40db8a3d08c4e285f19b/FLAG9f1ccd8b9 [2019-12-07 21:53:41,193 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:53:41,194 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2019-12-07 21:53:41,203 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/046aef754/f9c769dd064a40db8a3d08c4e285f19b/FLAG9f1ccd8b9 [2019-12-07 21:53:41,212 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/046aef754/f9c769dd064a40db8a3d08c4e285f19b [2019-12-07 21:53:41,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:53:41,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:53:41,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:53:41,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:53:41,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:53:41,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:53:41" (1/1) ... [2019-12-07 21:53:41,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:41, skipping insertion in model container [2019-12-07 21:53:41,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:53:41" (1/1) ... [2019-12-07 21:53:41,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:53:41,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:53:41,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:53:41,492 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 21:53:41,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9dd783b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:41, skipping insertion in model container [2019-12-07 21:53:41,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:53:41,493 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 21:53:41,496 INFO L168 Benchmark]: Toolchain (without parser) took 279.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -140.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 21:53:41,496 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:53:41,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:53:41,498 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 226]: 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 21:53:42,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:53:42,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:53:42,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:53:42,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:53:42,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:53:42,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:53:42,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:53:42,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:53:42,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:53:42,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:53:42,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:53:42,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:53:42,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:53:42,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:53:42,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:53:42,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:53:42,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:53:42,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:53:42,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:53:42,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:53:42,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:53:42,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:53:42,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:53:42,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:53:42,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:53:42,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:53:42,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:53:42,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:53:42,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:53:42,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:53:42,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:53:42,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:53:42,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:53:42,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:53:42,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:53:42,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:53:42,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:53:42,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:53:42,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:53:42,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:53:42,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:53:42,710 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:53:42,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:53:42,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:53:42,711 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:53:42,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:53:42,711 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:53:42,712 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:53:42,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:53:42,712 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:53:42,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:53:42,712 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:53:42,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:53:42,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:53:42,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:53:42,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:53:42,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:53:42,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:53:42,714 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:53:42,714 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:53:42,714 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:53:42,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:53:42,714 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:53:42,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:53:42,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:53:42,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:53:42,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:53:42,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:53:42,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:53:42,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:53:42,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:53:42,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:53:42,715 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:53:42,716 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:53:42,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:53:42,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:53:42,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:53:42,716 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_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 -> 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c [2019-12-07 21:53:42,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:53:42,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:53:42,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:53:42,887 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:53:42,887 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:53:42,888 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2019-12-07 21:53:42,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/281b09e29/e44736dfd9bd4a30bbdba60c18dae5f2/FLAGcd22df4b3 [2019-12-07 21:53:43,300 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:53:43,301 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2019-12-07 21:53:43,310 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/281b09e29/e44736dfd9bd4a30bbdba60c18dae5f2/FLAGcd22df4b3 [2019-12-07 21:53:43,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/data/281b09e29/e44736dfd9bd4a30bbdba60c18dae5f2 [2019-12-07 21:53:43,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:53:43,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:53:43,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:53:43,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:53:43,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:53:43,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:53:43" (1/1) ... [2019-12-07 21:53:43,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b897a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:43, skipping insertion in model container [2019-12-07 21:53:43,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:53:43" (1/1) ... [2019-12-07 21:53:43,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:53:43,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:53:43,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:53:43,975 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 21:53:43,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:53:44,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:53:44,039 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:53:44,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:53:44,114 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:53:44,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44 WrapperNode [2019-12-07 21:53:44,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:53:44,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:53:44,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:53:44,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:53:44,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:53:44,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:53:44,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:53:44,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:53:44,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... [2019-12-07 21:53:44,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:53:44,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:53:44,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:53:44,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:53:44,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 21:53:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:53:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 21:53:44,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:53:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:53:44,914 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:53:44,914 INFO L287 CfgBuilder]: Removed 286 assume(true) statements. [2019-12-07 21:53:44,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:53:44 BoogieIcfgContainer [2019-12-07 21:53:44,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:53:44,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:53:44,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:53:44,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:53:44,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:53:43" (1/3) ... [2019-12-07 21:53:44,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3446c2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:53:44, skipping insertion in model container [2019-12-07 21:53:44,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:53:44" (2/3) ... [2019-12-07 21:53:44,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3446c2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:53:44, skipping insertion in model container [2019-12-07 21:53:44,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:53:44" (3/3) ... [2019-12-07 21:53:44,920 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2019-12-07 21:53:44,927 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:53:44,932 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 21:53:44,939 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 21:53:44,955 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:53:44,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:53:44,956 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:53:44,956 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:53:44,956 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:53:44,956 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:53:44,956 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:53:44,956 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:53:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-12-07 21:53:44,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 21:53:44,980 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:53:44,981 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 21:53:44,981 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:53:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:53:44,985 INFO L82 PathProgramCache]: Analyzing trace with hash -477478196, now seen corresponding path program 1 times [2019-12-07 21:53:44,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:53:44,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278386186] [2019-12-07 21:53:44,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 21:53:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:53:45,131 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:53:45,135 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:53:45,146 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 21:53:45,147 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:53:45,151 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 21:53:45,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278386186] [2019-12-07 21:53:45,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:53:45,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:53:45,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975710602] [2019-12-07 21:53:45,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:53:45,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:53:45,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:53:45,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:53:45,167 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-12-07 21:53:45,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:53:45,202 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2019-12-07 21:53:45,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:53:45,204 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 21:53:45,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:53:45,215 INFO L225 Difference]: With dead ends: 388 [2019-12-07 21:53:45,215 INFO L226 Difference]: Without dead ends: 193 [2019-12-07 21:53:45,219 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 21:53:45,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-12-07 21:53:45,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-12-07 21:53:45,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-12-07 21:53:45,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2019-12-07 21:53:45,262 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2019-12-07 21:53:45,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:53:45,262 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2019-12-07 21:53:45,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:53:45,262 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2019-12-07 21:53:45,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 21:53:45,264 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:53:45,264 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 21:53:45,465 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:53:45,465 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:53:45,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:53:45,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1388508949, now seen corresponding path program 1 times [2019-12-07 21:53:45,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:53:45,467 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58286081] [2019-12-07 21:53:45,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 21:53:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:53:45,668 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:53:45,669 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:53:45,682 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 21:53:45,682 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:53:45,690 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 21:53:45,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58286081] [2019-12-07 21:53:45,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:53:45,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:53:45,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698544778] [2019-12-07 21:53:45,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:53:45,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:53:45,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:53:45,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:53:45,693 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 4 states. [2019-12-07 21:53:45,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:53:45,707 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2019-12-07 21:53:45,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:53:45,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 21:53:45,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:53:45,709 INFO L225 Difference]: With dead ends: 193 [2019-12-07 21:53:45,709 INFO L226 Difference]: Without dead ends: 75 [2019-12-07 21:53:45,710 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 21:53:45,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-12-07 21:53:45,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-12-07 21:53:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-12-07 21:53:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2019-12-07 21:53:45,716 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2019-12-07 21:53:45,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:53:45,716 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2019-12-07 21:53:45,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:53:45,716 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2019-12-07 21:53:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 21:53:45,717 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:53:45,717 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 21:53:45,918 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:53:45,918 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:53:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:53:45,919 INFO L82 PathProgramCache]: Analyzing trace with hash -521457096, now seen corresponding path program 1 times [2019-12-07 21:53:45,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:53:45,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572792100] [2019-12-07 21:53:45,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 21:53:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:53:46,119 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:53:46,121 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:53:46,136 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 21:53:46,136 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:53:46,148 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 21:53:46,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572792100] [2019-12-07 21:53:46,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:53:46,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 21:53:46,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180016485] [2019-12-07 21:53:46,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:53:46,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:53:46,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:53:46,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:53:46,151 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 4 states. [2019-12-07 21:53:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:53:46,179 INFO L93 Difference]: Finished difference Result 238 states and 358 transitions. [2019-12-07 21:53:46,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:53:46,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 21:53:46,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:53:46,181 INFO L225 Difference]: With dead ends: 238 [2019-12-07 21:53:46,181 INFO L226 Difference]: Without dead ends: 169 [2019-12-07 21:53:46,182 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 21:53:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-12-07 21:53:46,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 96. [2019-12-07 21:53:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-12-07 21:53:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2019-12-07 21:53:46,197 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2019-12-07 21:53:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:53:46,197 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2019-12-07 21:53:46,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:53:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2019-12-07 21:53:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 21:53:46,199 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:53:46,199 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] [2019-12-07 21:53:46,399 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:53:46,400 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:53:46,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:53:46,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1870578463, now seen corresponding path program 1 times [2019-12-07 21:53:46,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:53:46,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510500330] [2019-12-07 21:53:46,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 21:53:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:53:46,551 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:53:46,552 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:53:46,557 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 21:53:46,557 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:53:46,559 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 21:53:46,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510500330] [2019-12-07 21:53:46,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:53:46,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 21:53:46,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129474545] [2019-12-07 21:53:46,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:53:46,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:53:46,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:53:46,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:53:46,560 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand 3 states. [2019-12-07 21:53:46,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:53:46,629 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2019-12-07 21:53:46,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:53:46,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-07 21:53:46,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:53:46,631 INFO L225 Difference]: With dead ends: 197 [2019-12-07 21:53:46,631 INFO L226 Difference]: Without dead ends: 107 [2019-12-07 21:53:46,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 21:53:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-12-07 21:53:46,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2019-12-07 21:53:46,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-12-07 21:53:46,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2019-12-07 21:53:46,643 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2019-12-07 21:53:46,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:53:46,643 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2019-12-07 21:53:46,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:53:46,643 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2019-12-07 21:53:46,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 21:53:46,644 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:53:46,644 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] [2019-12-07 21:53:46,845 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 21:53:46,845 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:53:46,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:53:46,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1382032589, now seen corresponding path program 1 times [2019-12-07 21:53:46,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:53:46,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954917094] [2019-12-07 21:53:46,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 21:53:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:53:46,949 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:53:46,950 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:53:46,965 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 21:53:46,966 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:53:46,989 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 21:53:46,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954917094] [2019-12-07 21:53:46,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:53:46,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 21:53:46,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836591123] [2019-12-07 21:53:46,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 21:53:46,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:53:46,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 21:53:46,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 21:53:46,990 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand 8 states. [2019-12-07 21:53:47,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:53:47,358 INFO L93 Difference]: Finished difference Result 1171 states and 1714 transitions. [2019-12-07 21:53:47,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 21:53:47,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 21:53:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:53:47,363 INFO L225 Difference]: With dead ends: 1171 [2019-12-07 21:53:47,363 INFO L226 Difference]: Without dead ends: 1072 [2019-12-07 21:53:47,364 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 21:53:47,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2019-12-07 21:53:47,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 261. [2019-12-07 21:53:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-12-07 21:53:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 368 transitions. [2019-12-07 21:53:47,389 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 368 transitions. Word has length 27 [2019-12-07 21:53:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:53:47,389 INFO L462 AbstractCegarLoop]: Abstraction has 261 states and 368 transitions. [2019-12-07 21:53:47,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 21:53:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 368 transitions. [2019-12-07 21:53:47,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 21:53:47,390 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:53:47,390 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] [2019-12-07 21:53:47,590 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 21:53:47,591 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:53:47,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:53:47,591 INFO L82 PathProgramCache]: Analyzing trace with hash -318231153, now seen corresponding path program 1 times [2019-12-07 21:53:47,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:53:47,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208453863] [2019-12-07 21:53:47,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/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 21:53:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:53:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:53:49,233 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:53:49,233 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:53:49,433 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 21:53:49,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:53:49 BoogieIcfgContainer [2019-12-07 21:53:49,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:53:49,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:53:49,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:53:49,496 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:53:49,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:53:44" (3/4) ... [2019-12-07 21:53:49,497 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:53:49,553 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aeb84f23-c7dd-4c86-89dc-26a3afd897fc/bin/utaipan/witness.graphml [2019-12-07 21:53:49,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:53:49,554 INFO L168 Benchmark]: Toolchain (without parser) took 5846.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -117.3 MB). Peak memory consumption was 88.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:53:49,555 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:53:49,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:53:49,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.65 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 21:53:49,555 INFO L168 Benchmark]: Boogie Preprocessor took 41.97 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:53:49,556 INFO L168 Benchmark]: RCFGBuilder took 705.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.4 MB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:53:49,556 INFO L168 Benchmark]: TraceAbstraction took 4579.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 979.4 MB in the beginning and 1.1 GB in the end (delta: -97.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:53:49,556 INFO L168 Benchmark]: Witness Printer took 57.83 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: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:53:49,558 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 406.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.65 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. * Boogie Preprocessor took 41.97 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 705.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.4 MB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4579.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 979.4 MB in the beginning and 1.1 GB in the end (delta: -97.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 57.83 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: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L640] int retValue_acc ; [L641] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L675] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L682] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 197 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 744 SDtfs, 1811 SDslu, 1149 SDs, 0 SdLazy, 197 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 886 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 13137 SizeOfPredicates, 6 NumberOfNonLiveVariables, 926 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...