./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.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_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 75ad40de7ac44b78584ba916fa204e981921222d ...................................................................................................................................... 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_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 75ad40de7ac44b78584ba916fa204e981921222d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:13:40,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:13:40,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:13:40,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:13:40,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:13:40,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:13:40,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:13:40,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:13:40,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:13:40,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:13:40,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:13:40,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:13:40,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:13:40,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:13:40,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:13:40,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:13:40,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:13:40,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:13:40,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:13:40,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:13:40,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:13:40,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:13:40,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:13:40,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:13:40,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:13:40,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:13:40,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:13:40,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:13:40,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:13:40,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:13:40,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:13:40,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:13:40,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:13:40,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:13:40,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:13:40,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:13:40,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:13:40,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:13:40,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:13:40,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:13:40,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:13:40,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:13:40,706 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:13:40,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:13:40,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:13:40,707 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:13:40,707 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:13:40,708 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:13:40,708 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:13:40,708 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:13:40,708 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:13:40,708 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:13:40,708 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:13:40,708 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:13:40,708 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:13:40,709 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:13:40,709 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:13:40,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:13:40,709 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:13:40,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:13:40,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:13:40,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:13:40,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:13:40,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:13:40,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:13:40,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:13:40,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:13:40,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:13:40,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:13:40,711 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:13:40,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:13:40,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:13:40,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:13:40,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:13:40,712 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_57375933-7562-4055-8337-d641113e7586/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 -> 75ad40de7ac44b78584ba916fa204e981921222d [2019-12-07 12:13:40,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:13:40,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:13:40,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:13:40,824 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:13:40,824 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:13:40,824 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-12-07 12:13:40,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/dbf544661/dc1c444df3bd4d0aa1076a6a6e88e6c7/FLAG1f9e1c55e [2019-12-07 12:13:41,193 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:13:41,193 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-12-07 12:13:41,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/dbf544661/dc1c444df3bd4d0aa1076a6a6e88e6c7/FLAG1f9e1c55e [2019-12-07 12:13:41,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/dbf544661/dc1c444df3bd4d0aa1076a6a6e88e6c7 [2019-12-07 12:13:41,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:13:41,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:13:41,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:41,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:13:41,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:13:41,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:41" (1/1) ... [2019-12-07 12:13:41,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:41, skipping insertion in model container [2019-12-07 12:13:41,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:41" (1/1) ... [2019-12-07 12:13:41,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:13:41,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:13:41,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:41,475 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 12:13:41,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c2b6f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:41, skipping insertion in model container [2019-12-07 12:13:41,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:41,476 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 12:13:41,478 INFO L168 Benchmark]: Toolchain (without parser) took 265.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:41,479 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:41,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:41,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 589]: 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 12:13:42,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:13:42,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:13:42,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:13:42,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:13:42,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:13:42,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:13:42,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:13:42,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:13:42,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:13:42,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:13:42,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:13:42,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:13:42,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:13:42,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:13:42,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:13:42,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:13:42,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:13:42,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:13:42,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:13:42,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:13:42,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:13:42,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:13:42,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:13:42,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:13:42,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:13:42,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:13:42,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:13:42,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:13:42,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:13:42,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:13:42,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:13:42,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:13:42,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:13:42,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:13:42,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:13:42,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:13:42,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:13:42,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:13:42,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:13:42,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:13:42,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:13:42,642 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:13:42,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:13:42,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:13:42,643 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:13:42,643 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:13:42,643 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:13:42,643 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:13:42,643 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:13:42,644 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:13:42,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:13:42,644 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:13:42,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:13:42,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:13:42,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:13:42,646 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:13:42,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:13:42,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:13:42,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:13:42,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:13:42,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:13:42,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:13:42,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:13:42,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:13:42,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:13:42,647 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:13:42,647 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:13:42,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:13:42,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:13:42,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:13:42,647 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_57375933-7562-4055-8337-d641113e7586/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 -> 75ad40de7ac44b78584ba916fa204e981921222d [2019-12-07 12:13:42,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:13:42,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:13:42,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:13:42,823 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:13:42,823 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:13:42,824 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-12-07 12:13:42,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/e0fdfbe02/22e213ca576b4019b0d3f610d9493cee/FLAG6a51d91aa [2019-12-07 12:13:43,218 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:13:43,219 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-12-07 12:13:43,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/e0fdfbe02/22e213ca576b4019b0d3f610d9493cee/FLAG6a51d91aa [2019-12-07 12:13:43,236 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/data/e0fdfbe02/22e213ca576b4019b0d3f610d9493cee [2019-12-07 12:13:43,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:13:43,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:13:43,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:43,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:13:43,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:13:43,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43, skipping insertion in model container [2019-12-07 12:13:43,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:13:43,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:13:43,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:43,544 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:13:43,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:13:43,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:43,596 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:13:43,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:43,655 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:13:43,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43 WrapperNode [2019-12-07 12:13:43,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:43,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:13:43,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:13:43,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:13:43,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:13:43,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:13:43,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:13:43,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:13:43,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... [2019-12-07 12:13:43,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:13:43,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:13:43,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:13:43,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:13:43,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 12:13:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:13:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 12:13:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:13:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:13:44,226 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:13:44,227 INFO L287 CfgBuilder]: Removed 106 assume(true) statements. [2019-12-07 12:13:44,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:44 BoogieIcfgContainer [2019-12-07 12:13:44,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:13:44,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:13:44,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:13:44,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:13:44,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:13:43" (1/3) ... [2019-12-07 12:13:44,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2564cf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:13:44, skipping insertion in model container [2019-12-07 12:13:44,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:43" (2/3) ... [2019-12-07 12:13:44,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2564cf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:13:44, skipping insertion in model container [2019-12-07 12:13:44,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:44" (3/3) ... [2019-12-07 12:13:44,235 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2019-12-07 12:13:44,244 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:13:44,251 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 12:13:44,259 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 12:13:44,276 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:13:44,276 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:13:44,277 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:13:44,277 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:13:44,277 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:13:44,277 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:13:44,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:13:44,277 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:13:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-12-07 12:13:44,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:13:44,293 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:44,294 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 12:13:44,294 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:44,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:44,298 INFO L82 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2019-12-07 12:13:44,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:13:44,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778674008] [2019-12-07 12:13:44,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 12:13:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:44,447 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:13:44,451 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:44,461 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 12:13:44,462 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:13:44,465 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 12:13:44,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778674008] [2019-12-07 12:13:44,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:13:44,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:13:44,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600051857] [2019-12-07 12:13:44,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:13:44,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:13:44,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:13:44,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:13:44,480 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2019-12-07 12:13:44,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:44,499 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2019-12-07 12:13:44,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:13:44,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 12:13:44,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:44,508 INFO L225 Difference]: With dead ends: 166 [2019-12-07 12:13:44,509 INFO L226 Difference]: Without dead ends: 82 [2019-12-07 12:13:44,511 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 12:13:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-12-07 12:13:44,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-12-07 12:13:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-12-07 12:13:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2019-12-07 12:13:44,540 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2019-12-07 12:13:44,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:44,541 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2019-12-07 12:13:44,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:13:44,541 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2019-12-07 12:13:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 12:13:44,542 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:44,542 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 12:13:44,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:13:44,743 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:44,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:44,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2019-12-07 12:13:44,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:13:44,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541873168] [2019-12-07 12:13:44,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 12:13:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:44,952 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:13:44,954 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:44,969 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 12:13:44,970 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:13:44,978 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 12:13:44,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541873168] [2019-12-07 12:13:44,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:13:44,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:13:44,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505982380] [2019-12-07 12:13:44,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:13:44,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:13:44,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:13:44,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:13:44,981 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 4 states. [2019-12-07 12:13:44,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:44,994 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-12-07 12:13:44,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:13:44,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 12:13:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:44,995 INFO L225 Difference]: With dead ends: 82 [2019-12-07 12:13:44,995 INFO L226 Difference]: Without dead ends: 38 [2019-12-07 12:13:44,996 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 12:13:44,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-07 12:13:45,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-12-07 12:13:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 12:13:45,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-12-07 12:13:45,002 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-12-07 12:13:45,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:45,002 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-12-07 12:13:45,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:13:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-12-07 12:13:45,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:13:45,003 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:45,003 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 12:13:45,204 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:13:45,205 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:45,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:45,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2019-12-07 12:13:45,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:13:45,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284107612] [2019-12-07 12:13:45,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 12:13:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:45,429 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:13:45,430 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:45,438 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 12:13:45,438 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:13:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:13:45,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284107612] [2019-12-07 12:13:45,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:13:45,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 12:13:45,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910110540] [2019-12-07 12:13:45,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:13:45,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:13:45,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:13:45,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:13:45,447 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 4 states. [2019-12-07 12:13:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:45,463 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2019-12-07 12:13:45,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:13:45,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 12:13:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:45,465 INFO L225 Difference]: With dead ends: 127 [2019-12-07 12:13:45,465 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 12:13:45,466 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 12:13:45,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 12:13:45,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2019-12-07 12:13:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-12-07 12:13:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2019-12-07 12:13:45,473 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2019-12-07 12:13:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:45,474 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2019-12-07 12:13:45,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:13:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2019-12-07 12:13:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:13:45,474 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:45,475 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:13:45,675 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:13:45,675 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:45,676 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2019-12-07 12:13:45,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:13:45,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58719466] [2019-12-07 12:13:45,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 12:13:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:45,820 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:13:45,821 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:45,826 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 12:13:45,826 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:13:45,828 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 12:13:45,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58719466] [2019-12-07 12:13:45,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:13:45,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 12:13:45,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261216971] [2019-12-07 12:13:45,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:13:45,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:13:45,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:13:45,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:13:45,830 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2019-12-07 12:13:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:45,879 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2019-12-07 12:13:45,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:13:45,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 12:13:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:45,880 INFO L225 Difference]: With dead ends: 135 [2019-12-07 12:13:45,881 INFO L226 Difference]: Without dead ends: 82 [2019-12-07 12:13:45,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:13:45,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-12-07 12:13:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2019-12-07 12:13:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-07 12:13:45,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2019-12-07 12:13:45,889 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2019-12-07 12:13:45,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:45,890 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2019-12-07 12:13:45,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:13:45,890 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2019-12-07 12:13:45,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 12:13:45,891 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:45,891 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 12:13:46,091 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:13:46,093 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:46,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:46,093 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2019-12-07 12:13:46,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:13:46,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698201256] [2019-12-07 12:13:46,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 12:13:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:46,243 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:13:46,244 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:46,260 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 12:13:46,260 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:13:46,281 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 12:13:46,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698201256] [2019-12-07 12:13:46,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:13:46,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 12:13:46,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908575138] [2019-12-07 12:13:46,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:13:46,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:13:46,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:13:46,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:13:46,283 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 8 states. [2019-12-07 12:13:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:46,560 INFO L93 Difference]: Finished difference Result 840 states and 1240 transitions. [2019-12-07 12:13:46,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 12:13:46,561 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 12:13:46,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:46,565 INFO L225 Difference]: With dead ends: 840 [2019-12-07 12:13:46,565 INFO L226 Difference]: Without dead ends: 766 [2019-12-07 12:13:46,566 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 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 12:13:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2019-12-07 12:13:46,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 209. [2019-12-07 12:13:46,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-12-07 12:13:46,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2019-12-07 12:13:46,594 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 27 [2019-12-07 12:13:46,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:46,594 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2019-12-07 12:13:46,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:13:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2019-12-07 12:13:46,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 12:13:46,595 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:46,595 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 12:13:46,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:13:46,797 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:46,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:46,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2019-12-07 12:13:46,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:13:46,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546979097] [2019-12-07 12:13:46,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/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 12:13:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:49,136 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 12:13:49,136 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:13:49,336 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 12:13:49,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:13:49 BoogieIcfgContainer [2019-12-07 12:13:49,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:13:49,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:13:49,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:13:49,435 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:13:49,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:44" (3/4) ... [2019-12-07 12:13:49,436 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:13:49,491 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_57375933-7562-4055-8337-d641113e7586/bin/utaipan/witness.graphml [2019-12-07 12:13:49,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:13:49,492 INFO L168 Benchmark]: Toolchain (without parser) took 6253.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -212.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:49,493 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 12:13:49,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:49,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.69 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:49,493 INFO L168 Benchmark]: Boogie Preprocessor took 28.86 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 12:13:49,494 INFO L168 Benchmark]: RCFGBuilder took 499.67 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:49,494 INFO L168 Benchmark]: TraceAbstraction took 5205.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -133.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:49,494 INFO L168 Benchmark]: Witness Printer took 56.84 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:49,496 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 416.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.69 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 499.67 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5205.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -133.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 56.84 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] int retValue_acc ; [L401] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L276] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L283] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L135] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] __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, 86 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 788 SDslu, 761 SDs, 0 SdLazy, 147 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred 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, 595 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 12713 SizeOfPredicates, 6 NumberOfNonLiveVariables, 924 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...