./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.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_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 ...................................................................................................................................... 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_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:54:51,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:54:51,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:54:51,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:54:51,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:54:51,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:54:51,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:54:51,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:54:51,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:54:51,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:54:51,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:54:51,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:54:51,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:54:51,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:54:51,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:54:51,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:54:51,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:54:51,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:54:51,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:54:51,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:54:51,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:54:51,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:54:51,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:54:51,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:54:51,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:54:51,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:54:51,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:54:51,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:54:51,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:54:51,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:54:51,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:54:51,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:54:51,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:54:51,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:54:51,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:54:51,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:54:51,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:54:51,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:54:51,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:54:51,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:54:51,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:54:51,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:54:51,608 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:54:51,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:54:51,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:54:51,610 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:54:51,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:54:51,610 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:54:51,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:54:51,610 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:54:51,610 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:54:51,611 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:54:51,611 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:54:51,611 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:54:51,611 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:54:51,611 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:54:51,612 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:54:51,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:54:51,612 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:54:51,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:54:51,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:54:51,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:54:51,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:54:51,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:54:51,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:54:51,614 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:54:51,614 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:54:51,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:54:51,614 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:54:51,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:54:51,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:54:51,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:54:51,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:54:51,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:54:51,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:54:51,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:54:51,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:54:51,615 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:54:51,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:54:51,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:54:51,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:54:51,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:54:51,616 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_2d80b136-a91c-4571-8148-ed035e122e90/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 -> 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 [2019-12-07 19:54:51,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:54:51,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:54:51,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:54:51,739 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:54:51,739 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:54:51,740 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-12-07 19:54:51,783 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/108c34817/f13c1ef8644d42c381d939d066cb5b88/FLAG11cad63fb [2019-12-07 19:54:52,216 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:54:52,217 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-12-07 19:54:52,224 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/108c34817/f13c1ef8644d42c381d939d066cb5b88/FLAG11cad63fb [2019-12-07 19:54:52,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/108c34817/f13c1ef8644d42c381d939d066cb5b88 [2019-12-07 19:54:52,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:54:52,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:54:52,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:54:52,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:54:52,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:54:52,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:54:52" (1/1) ... [2019-12-07 19:54:52,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:52, skipping insertion in model container [2019-12-07 19:54:52,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:54:52" (1/1) ... [2019-12-07 19:54:52,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:54:52,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:54:52,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:54:52,493 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 19:54:52,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@45a21e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:52, skipping insertion in model container [2019-12-07 19:54:52,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:54:52,494 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 19:54:52,495 INFO L168 Benchmark]: Toolchain (without parser) took 259.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:54:52,496 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:54:52,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:54:52,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -151.8 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: 173]: 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 19:54:53,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:54:53,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:54:53,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:54:53,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:54:53,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:54:53,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:54:53,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:54:53,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:54:53,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:54:53,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:54:53,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:54:53,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:54:53,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:54:53,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:54:53,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:54:53,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:54:53,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:54:53,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:54:53,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:54:53,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:54:53,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:54:53,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:54:53,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:54:53,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:54:53,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:54:53,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:54:53,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:54:53,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:54:53,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:54:53,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:54:53,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:54:53,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:54:53,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:54:53,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:54:53,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:54:53,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:54:53,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:54:53,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:54:53,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:54:53,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:54:53,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:54:53,711 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:54:53,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:54:53,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:54:53,712 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:54:53,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:54:53,712 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:54:53,713 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:54:53,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:54:53,713 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:54:53,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:54:53,714 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:54:53,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:54:53,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:54:53,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:54:53,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:54:53,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:54:53,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:54:53,715 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:54:53,715 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:54:53,715 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:54:53,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:54:53,716 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:54:53,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:54:53,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:54:53,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:54:53,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:54:53,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:54:53,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:54:53,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:54:53,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:54:53,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:54:53,717 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:54:53,717 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:54:53,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:54:53,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:54:53,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:54:53,718 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_2d80b136-a91c-4571-8148-ed035e122e90/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 -> 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 [2019-12-07 19:54:53,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:54:53,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:54:53,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:54:53,900 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:54:53,900 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:54:53,900 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-12-07 19:54:53,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/f699c2a38/1dfb3cd443644d6a817e8c649bc8d015/FLAGe9e1ee96f [2019-12-07 19:54:54,327 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:54:54,328 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-12-07 19:54:54,337 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/f699c2a38/1dfb3cd443644d6a817e8c649bc8d015/FLAGe9e1ee96f [2019-12-07 19:54:54,346 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/data/f699c2a38/1dfb3cd443644d6a817e8c649bc8d015 [2019-12-07 19:54:54,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:54:54,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:54:54,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:54:54,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:54:54,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:54:54,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54, skipping insertion in model container [2019-12-07 19:54:54,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:54:54,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:54:54,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:54:54,614 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 19:54:54,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:54:54,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:54:54,666 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:54:54,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:54:54,727 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:54:54,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54 WrapperNode [2019-12-07 19:54:54,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:54:54,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:54:54,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:54:54,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:54:54,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:54:54,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:54:54,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:54:54,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:54:54,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... [2019-12-07 19:54:54,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:54:54,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:54:54,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:54:54,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:54:54,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 19:54:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:54:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 19:54:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:54:54,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:54:55,357 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:54:55,357 INFO L287 CfgBuilder]: Removed 166 assume(true) statements. [2019-12-07 19:54:55,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:54:55 BoogieIcfgContainer [2019-12-07 19:54:55,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:54:55,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:54:55,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:54:55,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:54:55,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:54:54" (1/3) ... [2019-12-07 19:54:55,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336c3374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:54:55, skipping insertion in model container [2019-12-07 19:54:55,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:54:54" (2/3) ... [2019-12-07 19:54:55,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336c3374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:54:55, skipping insertion in model container [2019-12-07 19:54:55,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:54:55" (3/3) ... [2019-12-07 19:54:55,365 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2019-12-07 19:54:55,371 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:54:55,377 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 19:54:55,385 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 19:54:55,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:54:55,404 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:54:55,404 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:54:55,404 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:54:55,404 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:54:55,404 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:54:55,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:54:55,405 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:54:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-07 19:54:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 19:54:55,423 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:54:55,424 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 19:54:55,424 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:54:55,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:54:55,428 INFO L82 PathProgramCache]: Analyzing trace with hash 946560340, now seen corresponding path program 1 times [2019-12-07 19:54:55,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:54:55,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599825129] [2019-12-07 19:54:55,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 19:54:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:54:55,587 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:54:55,590 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:54:55,600 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 19:54:55,601 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:54:55,604 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 19:54:55,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599825129] [2019-12-07 19:54:55,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:54:55,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:54:55,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439664351] [2019-12-07 19:54:55,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:54:55,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:54:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:54:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:54:55,620 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-07 19:54:55,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:54:55,641 INFO L93 Difference]: Finished difference Result 220 states and 329 transitions. [2019-12-07 19:54:55,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:54:55,642 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 19:54:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:54:55,650 INFO L225 Difference]: With dead ends: 220 [2019-12-07 19:54:55,650 INFO L226 Difference]: Without dead ends: 109 [2019-12-07 19:54:55,653 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 19:54:55,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-07 19:54:55,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-07 19:54:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 19:54:55,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2019-12-07 19:54:55,684 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2019-12-07 19:54:55,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:54:55,684 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2019-12-07 19:54:55,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:54:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2019-12-07 19:54:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 19:54:55,685 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:54:55,685 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 19:54:55,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:54:55,886 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:54:55,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:54:55,886 INFO L82 PathProgramCache]: Analyzing trace with hash 35529587, now seen corresponding path program 1 times [2019-12-07 19:54:55,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:54:55,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55357761] [2019-12-07 19:54:55,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 19:54:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:54:56,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:54:56,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:54:56,019 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 19:54:56,019 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:54:56,028 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 19:54:56,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55357761] [2019-12-07 19:54:56,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:54:56,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 19:54:56,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729426061] [2019-12-07 19:54:56,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:54:56,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:54:56,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:54:56,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:54:56,031 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 4 states. [2019-12-07 19:54:56,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:54:56,045 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2019-12-07 19:54:56,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:54:56,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 19:54:56,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:54:56,046 INFO L225 Difference]: With dead ends: 109 [2019-12-07 19:54:56,047 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 19:54:56,048 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 19:54:56,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 19:54:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 19:54:56,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 19:54:56,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-12-07 19:54:56,054 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2019-12-07 19:54:56,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:54:56,054 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-12-07 19:54:56,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:54:56,055 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-12-07 19:54:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 19:54:56,056 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:54:56,056 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 19:54:56,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:54:56,257 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:54:56,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:54:56,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2019-12-07 19:54:56,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:54:56,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796801816] [2019-12-07 19:54:56,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 19:54:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:54:56,482 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:54:56,483 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:54:56,492 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 19:54:56,493 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:54:56,499 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 19:54:56,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796801816] [2019-12-07 19:54:56,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:54:56,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:54:56,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45436206] [2019-12-07 19:54:56,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:54:56,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:54:56,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:54:56,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:54:56,501 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 4 states. [2019-12-07 19:54:56,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:54:56,520 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2019-12-07 19:54:56,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:54:56,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 19:54:56,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:54:56,521 INFO L225 Difference]: With dead ends: 154 [2019-12-07 19:54:56,521 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 19:54:56,522 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 19:54:56,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 19:54:56,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2019-12-07 19:54:56,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 19:54:56,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2019-12-07 19:54:56,530 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2019-12-07 19:54:56,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:54:56,530 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2019-12-07 19:54:56,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:54:56,531 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2019-12-07 19:54:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 19:54:56,531 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:54:56,531 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:54:56,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 19:54:56,733 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:54:56,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:54:56,734 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2019-12-07 19:54:56,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:54:56,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310012116] [2019-12-07 19:54:56,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 19:54:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:54:56,978 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:54:56,979 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:54:56,994 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 19:54:56,994 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:54:57,022 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 19:54:57,022 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310012116] [2019-12-07 19:54:57,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:54:57,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 19:54:57,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156343334] [2019-12-07 19:54:57,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 19:54:57,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:54:57,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 19:54:57,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 19:54:57,024 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 8 states. [2019-12-07 19:54:57,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:54:57,302 INFO L93 Difference]: Finished difference Result 762 states and 1164 transitions. [2019-12-07 19:54:57,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 19:54:57,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-12-07 19:54:57,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:54:57,308 INFO L225 Difference]: With dead ends: 762 [2019-12-07 19:54:57,308 INFO L226 Difference]: Without dead ends: 700 [2019-12-07 19:54:57,310 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 19:54:57,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2019-12-07 19:54:57,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 178. [2019-12-07 19:54:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-12-07 19:54:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2019-12-07 19:54:57,345 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 26 [2019-12-07 19:54:57,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:54:57,345 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2019-12-07 19:54:57,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 19:54:57,346 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2019-12-07 19:54:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 19:54:57,348 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:54:57,348 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 19:54:57,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 19:54:57,549 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:54:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:54:57,550 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2019-12-07 19:54:57,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:54:57,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783695843] [2019-12-07 19:54:57,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/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 19:54:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:54:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:54:58,821 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 19:54:58,821 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:54:59,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 19:54:59,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:54:59 BoogieIcfgContainer [2019-12-07 19:54:59,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:54:59,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:54:59,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:54:59,087 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:54:59,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:54:55" (3/4) ... [2019-12-07 19:54:59,089 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 19:54:59,142 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2d80b136-a91c-4571-8148-ed035e122e90/bin/utaipan/witness.graphml [2019-12-07 19:54:59,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:54:59,144 INFO L168 Benchmark]: Toolchain (without parser) took 4795.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.9 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -212.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:54:59,144 INFO L168 Benchmark]: CDTParser took 0.17 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 19:54:59,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:54:59,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.38 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 19:54:59,145 INFO L168 Benchmark]: Boogie Preprocessor took 31.79 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:54:59,145 INFO L168 Benchmark]: RCFGBuilder took 552.64 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: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:54:59,145 INFO L168 Benchmark]: TraceAbstraction took 3726.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -160.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:54:59,145 INFO L168 Benchmark]: Witness Printer took 56.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:54:59,147 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.38 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 31.79 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 552.64 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: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3726.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -160.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 56.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int retValue_acc ; [L942] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L526] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] COND TRUE \read(systemActive) [L648] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] COND FALSE !(\read(pumpRunning)) [L622] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 858 SDslu, 991 SDs, 0 SdLazy, 143 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 567 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 10843 SizeOfPredicates, 6 NumberOfNonLiveVariables, 735 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...