./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.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_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 ...................................................................................................................................... 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_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:45:30,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:45:30,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:45:30,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:45:30,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:45:30,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:45:30,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:45:30,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:45:30,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:45:30,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:45:30,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:45:30,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:45:30,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:45:30,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:45:30,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:45:30,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:45:30,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:45:30,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:45:30,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:45:30,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:45:30,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:45:30,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:45:30,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:45:30,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:45:30,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:45:30,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:45:30,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:45:30,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:45:30,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:45:30,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:45:30,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:45:30,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:45:30,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:45:30,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:45:30,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:45:30,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:45:30,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:45:30,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:45:30,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:45:30,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:45:30,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:45:30,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:45:30,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:45:30,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:45:30,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:45:30,408 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:45:30,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:45:30,408 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:45:30,408 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:45:30,409 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:45:30,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:45:30,409 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:45:30,409 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:45:30,409 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:45:30,410 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:45:30,410 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:45:30,410 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:45:30,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:45:30,411 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:45:30,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:45:30,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:45:30,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:45:30,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:45:30,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:45:30,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:45:30,412 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:45:30,412 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:45:30,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:45:30,413 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:45:30,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:45:30,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:45:30,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:45:30,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:45:30,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:45:30,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:45:30,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:45:30,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:45:30,414 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:45:30,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:45:30,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:45:30,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:45:30,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:45:30,415 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_ba01221f-7d06-493b-9836-e2178a9984fd/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 -> 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 [2019-12-07 14:45:30,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:45:30,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:45:30,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:45:30,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:45:30,531 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:45:30,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2019-12-07 14:45:30,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/f3e36c80a/2c8e12c320874061b816377a15bee88b/FLAG06945dad7 [2019-12-07 14:45:31,012 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:45:31,012 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2019-12-07 14:45:31,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/f3e36c80a/2c8e12c320874061b816377a15bee88b/FLAG06945dad7 [2019-12-07 14:45:31,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/f3e36c80a/2c8e12c320874061b816377a15bee88b [2019-12-07 14:45:31,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:45:31,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:45:31,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:45:31,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:45:31,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:45:31,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:45:31" (1/1) ... [2019-12-07 14:45:31,037 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 02:45:31, skipping insertion in model container [2019-12-07 14:45:31,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:45:31" (1/1) ... [2019-12-07 14:45:31,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:45:31,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:45:31,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:45:31,281 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 14:45:31,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22158c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:31, skipping insertion in model container [2019-12-07 14:45:31,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:45:31,282 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 14:45:31,283 INFO L168 Benchmark]: Toolchain (without parser) took 250.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:45:31,284 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:45:31,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:45:31,285 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 960.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 469]: 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 14:45:32,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:45:32,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:45:32,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:45:32,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:45:32,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:45:32,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:45:32,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:45:32,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:45:32,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:45:32,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:45:32,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:45:32,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:45:32,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:45:32,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:45:32,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:45:32,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:45:32,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:45:32,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:45:32,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:45:32,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:45:32,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:45:32,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:45:32,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:45:32,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:45:32,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:45:32,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:45:32,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:45:32,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:45:32,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:45:32,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:45:32,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:45:32,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:45:32,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:45:32,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:45:32,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:45:32,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:45:32,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:45:32,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:45:32,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:45:32,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:45:32,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:45:32,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:45:32,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:45:32,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:45:32,494 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:45:32,494 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:45:32,494 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:45:32,494 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:45:32,494 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:45:32,494 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:45:32,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:45:32,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:45:32,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:45:32,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:45:32,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:45:32,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:45:32,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:45:32,496 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:45:32,496 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:45:32,496 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:45:32,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:45:32,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:45:32,497 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:45:32,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:45:32,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:45:32,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:45:32,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:45:32,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:45:32,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:45:32,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:45:32,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:45:32,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:45:32,498 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:45:32,498 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:45:32,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:45:32,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:45:32,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:45:32,499 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_ba01221f-7d06-493b-9836-e2178a9984fd/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 -> 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 [2019-12-07 14:45:32,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:45:32,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:45:32,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:45:32,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:45:32,710 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:45:32,710 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2019-12-07 14:45:32,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/6266151b1/5a90e6ee336548efa6dca4d534c0f9c5/FLAG1dd5865ad [2019-12-07 14:45:33,213 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:45:33,213 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2019-12-07 14:45:33,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/6266151b1/5a90e6ee336548efa6dca4d534c0f9c5/FLAG1dd5865ad [2019-12-07 14:45:33,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/data/6266151b1/5a90e6ee336548efa6dca4d534c0f9c5 [2019-12-07 14:45:33,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:45:33,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:45:33,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:45:33,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:45:33,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:45:33,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,238 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 02:45:33, skipping insertion in model container [2019-12-07 14:45:33,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:45:33,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:45:33,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:45:33,496 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 14:45:33,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:45:33,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:45:33,547 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:45:33,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:45:33,612 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:45:33,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33 WrapperNode [2019-12-07 14:45:33,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:45:33,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:45:33,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:45:33,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:45:33,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:45:33,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:45:33,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:45:33,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:45:33,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... [2019-12-07 14:45:33,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:45:33,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:45:33,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:45:33,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:45:33,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 14:45:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:45:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 14:45:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:45:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:45:34,186 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:45:34,186 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-12-07 14:45:34,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:45:34 BoogieIcfgContainer [2019-12-07 14:45:34,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:45:34,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:45:34,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:45:34,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:45:34,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:45:33" (1/3) ... [2019-12-07 14:45:34,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a6e0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:45:34, skipping insertion in model container [2019-12-07 14:45:34,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:45:33" (2/3) ... [2019-12-07 14:45:34,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a6e0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:45:34, skipping insertion in model container [2019-12-07 14:45:34,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:45:34" (3/3) ... [2019-12-07 14:45:34,192 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2019-12-07 14:45:34,199 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:45:34,204 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 14:45:34,212 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 14:45:34,228 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:45:34,228 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:45:34,229 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:45:34,229 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:45:34,229 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:45:34,229 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:45:34,229 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:45:34,229 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:45:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-12-07 14:45:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 14:45:34,244 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:34,244 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:45:34,244 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:34,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:34,248 INFO L82 PathProgramCache]: Analyzing trace with hash -502845476, now seen corresponding path program 1 times [2019-12-07 14:45:34,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:34,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432203854] [2019-12-07 14:45:34,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 14:45:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:34,393 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:45:34,397 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:34,407 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 14:45:34,407 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:34,411 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 14:45:34,411 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432203854] [2019-12-07 14:45:34,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:34,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:45:34,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496520681] [2019-12-07 14:45:34,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:45:34,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:34,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:45:34,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:45:34,426 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2019-12-07 14:45:34,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:34,448 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2019-12-07 14:45:34,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:45:34,449 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 14:45:34,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:34,457 INFO L225 Difference]: With dead ends: 154 [2019-12-07 14:45:34,457 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 14:45:34,460 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 14:45:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 14:45:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-12-07 14:45:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 14:45:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2019-12-07 14:45:34,492 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2019-12-07 14:45:34,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:34,492 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2019-12-07 14:45:34,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:45:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2019-12-07 14:45:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 14:45:34,493 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:34,493 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:45:34,694 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:45:34,694 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:34,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:34,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1549602373, now seen corresponding path program 1 times [2019-12-07 14:45:34,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:34,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862369469] [2019-12-07 14:45:34,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 14:45:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:34,835 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:45:34,837 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:34,849 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 14:45:34,849 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:45:34,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862369469] [2019-12-07 14:45:34,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:34,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:45:34,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32658249] [2019-12-07 14:45:34,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:45:34,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:34,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:45:34,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:45:34,861 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 4 states. [2019-12-07 14:45:34,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:34,871 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2019-12-07 14:45:34,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:45:34,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 14:45:34,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:34,872 INFO L225 Difference]: With dead ends: 76 [2019-12-07 14:45:34,872 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 14:45:34,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 14:45:34,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 14:45:34,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 14:45:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 14:45:34,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-12-07 14:45:34,877 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2019-12-07 14:45:34,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:34,877 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-12-07 14:45:34,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:45:34,878 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-12-07 14:45:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 14:45:34,878 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:34,878 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] [2019-12-07 14:45:35,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:45:35,080 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:35,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:35,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2019-12-07 14:45:35,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:35,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090012799] [2019-12-07 14:45:35,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 14:45:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:35,263 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:45:35,265 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:35,273 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 14:45:35,274 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:35,281 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 14:45:35,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090012799] [2019-12-07 14:45:35,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:35,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:45:35,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390169386] [2019-12-07 14:45:35,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:45:35,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:35,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:45:35,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:45:35,284 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2019-12-07 14:45:35,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:35,332 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2019-12-07 14:45:35,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:45:35,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 14:45:35,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:35,334 INFO L225 Difference]: With dead ends: 119 [2019-12-07 14:45:35,335 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 14:45:35,335 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 14:45:35,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 14:45:35,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2019-12-07 14:45:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 14:45:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2019-12-07 14:45:35,345 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2019-12-07 14:45:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:35,346 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2019-12-07 14:45:35,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:45:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2019-12-07 14:45:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 14:45:35,347 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:35,347 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] [2019-12-07 14:45:35,547 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:45:35,548 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:35,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:35,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2019-12-07 14:45:35,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:35,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175692535] [2019-12-07 14:45:35,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 14:45:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:35,649 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:45:35,650 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:35,655 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 14:45:35,655 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:35,657 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 14:45:35,657 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175692535] [2019-12-07 14:45:35,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:35,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:45:35,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817378100] [2019-12-07 14:45:35,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:45:35,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:35,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:45:35,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:45:35,659 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2019-12-07 14:45:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:35,706 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2019-12-07 14:45:35,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:45:35,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 14:45:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:35,707 INFO L225 Difference]: With dead ends: 125 [2019-12-07 14:45:35,707 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 14:45:35,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 14:45:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 14:45:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2019-12-07 14:45:35,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 14:45:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-12-07 14:45:35,716 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2019-12-07 14:45:35,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:35,716 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 14:45:35,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:45:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-12-07 14:45:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 14:45:35,717 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:35,717 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:45:35,918 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:45:35,919 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:35,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:35,919 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2019-12-07 14:45:35,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:35,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430472412] [2019-12-07 14:45:35,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 14:45:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:36,131 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:45:36,133 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:45:36,149 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:36,156 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 14:45:36,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430472412] [2019-12-07 14:45:36,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:36,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 14:45:36,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384048925] [2019-12-07 14:45:36,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:45:36,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:36,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:45:36,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:45:36,158 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 5 states. [2019-12-07 14:45:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:36,223 INFO L93 Difference]: Finished difference Result 354 states and 517 transitions. [2019-12-07 14:45:36,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:45:36,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 14:45:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:36,225 INFO L225 Difference]: With dead ends: 354 [2019-12-07 14:45:36,225 INFO L226 Difference]: Without dead ends: 286 [2019-12-07 14:45:36,226 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:45:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2019-12-07 14:45:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 134. [2019-12-07 14:45:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-12-07 14:45:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 188 transitions. [2019-12-07 14:45:36,240 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 188 transitions. Word has length 25 [2019-12-07 14:45:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:36,240 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 188 transitions. [2019-12-07 14:45:36,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:45:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 188 transitions. [2019-12-07 14:45:36,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 14:45:36,241 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:36,241 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 14:45:36,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 14:45:36,442 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:36,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:36,443 INFO L82 PathProgramCache]: Analyzing trace with hash 740712497, now seen corresponding path program 1 times [2019-12-07 14:45:36,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:36,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506157153] [2019-12-07 14:45:36,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/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 14:45:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:36,618 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:45:36,619 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:36,634 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 14:45:36,634 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:36,636 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 14:45:36,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506157153] [2019-12-07 14:45:36,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:36,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:45:36,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930559833] [2019-12-07 14:45:36,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:45:36,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:36,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:45:36,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:45:36,638 INFO L87 Difference]: Start difference. First operand 134 states and 188 transitions. Second operand 5 states. [2019-12-07 14:45:36,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:36,760 INFO L93 Difference]: Finished difference Result 368 states and 521 transitions. [2019-12-07 14:45:36,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:45:36,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 14:45:36,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:36,762 INFO L225 Difference]: With dead ends: 368 [2019-12-07 14:45:36,762 INFO L226 Difference]: Without dead ends: 366 [2019-12-07 14:45:36,763 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:45:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-12-07 14:45:36,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 134. [2019-12-07 14:45:36,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-12-07 14:45:36,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 186 transitions. [2019-12-07 14:45:36,788 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 186 transitions. Word has length 26 [2019-12-07 14:45:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:36,788 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 186 transitions. [2019-12-07 14:45:36,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:45:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 186 transitions. [2019-12-07 14:45:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 14:45:36,789 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:36,789 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:45:36,990 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 14:45:36,990 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:36,991 INFO L82 PathProgramCache]: Analyzing trace with hash 2030628178, now seen corresponding path program 1 times [2019-12-07 14:45:36,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:36,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573909404] [2019-12-07 14:45:36,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 14:45:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:37,151 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:45:37,152 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:37,164 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 14:45:37,164 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:37,167 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 14:45:37,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573909404] [2019-12-07 14:45:37,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:37,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:45:37,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599467545] [2019-12-07 14:45:37,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:45:37,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:37,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:45:37,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:45:37,168 INFO L87 Difference]: Start difference. First operand 134 states and 186 transitions. Second operand 5 states. [2019-12-07 14:45:37,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:37,219 INFO L93 Difference]: Finished difference Result 398 states and 551 transitions. [2019-12-07 14:45:37,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:45:37,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 14:45:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:37,221 INFO L225 Difference]: With dead ends: 398 [2019-12-07 14:45:37,221 INFO L226 Difference]: Without dead ends: 270 [2019-12-07 14:45:37,223 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:45:37,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2019-12-07 14:45:37,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 140. [2019-12-07 14:45:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 14:45:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 192 transitions. [2019-12-07 14:45:37,239 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 192 transitions. Word has length 30 [2019-12-07 14:45:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:37,239 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 192 transitions. [2019-12-07 14:45:37,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:45:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 192 transitions. [2019-12-07 14:45:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 14:45:37,241 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:37,241 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:45:37,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 14:45:37,442 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:37,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:37,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1637601168, now seen corresponding path program 1 times [2019-12-07 14:45:37,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:37,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533273096] [2019-12-07 14:45:37,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 14:45:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:37,577 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:45:37,578 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:37,587 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 14:45:37,587 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:37,598 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 14:45:37,598 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533273096] [2019-12-07 14:45:37,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:37,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 14:45:37,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146066124] [2019-12-07 14:45:37,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:45:37,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:37,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:45:37,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:45:37,599 INFO L87 Difference]: Start difference. First operand 140 states and 192 transitions. Second operand 6 states. [2019-12-07 14:45:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:37,636 INFO L93 Difference]: Finished difference Result 432 states and 590 transitions. [2019-12-07 14:45:37,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:45:37,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-12-07 14:45:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:37,638 INFO L225 Difference]: With dead ends: 432 [2019-12-07 14:45:37,639 INFO L226 Difference]: Without dead ends: 298 [2019-12-07 14:45:37,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:45:37,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-12-07 14:45:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 144. [2019-12-07 14:45:37,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 14:45:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 196 transitions. [2019-12-07 14:45:37,655 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 196 transitions. Word has length 30 [2019-12-07 14:45:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:37,655 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 196 transitions. [2019-12-07 14:45:37,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:45:37,655 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 196 transitions. [2019-12-07 14:45:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 14:45:37,656 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:37,656 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:45:37,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 14:45:37,857 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:37,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:37,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1895766606, now seen corresponding path program 1 times [2019-12-07 14:45:37,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:37,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154978779] [2019-12-07 14:45:37,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 14:45:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:45:37,953 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:45:37,954 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:45:37,958 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 14:45:37,959 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:45:37,967 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 14:45:37,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154978779] [2019-12-07 14:45:37,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:45:37,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 14:45:37,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382248290] [2019-12-07 14:45:37,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:45:37,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:45:37,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:45:37,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:45:37,968 INFO L87 Difference]: Start difference. First operand 144 states and 196 transitions. Second operand 4 states. [2019-12-07 14:45:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:45:38,010 INFO L93 Difference]: Finished difference Result 492 states and 672 transitions. [2019-12-07 14:45:38,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:45:38,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-07 14:45:38,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:45:38,012 INFO L225 Difference]: With dead ends: 492 [2019-12-07 14:45:38,012 INFO L226 Difference]: Without dead ends: 354 [2019-12-07 14:45:38,013 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 14:45:38,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-12-07 14:45:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 266. [2019-12-07 14:45:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-12-07 14:45:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 359 transitions. [2019-12-07 14:45:38,030 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 359 transitions. Word has length 30 [2019-12-07 14:45:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:45:38,030 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 359 transitions. [2019-12-07 14:45:38,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:45:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 359 transitions. [2019-12-07 14:45:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 14:45:38,031 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:45:38,031 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:45:38,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 14:45:38,232 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:45:38,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:45:38,233 INFO L82 PathProgramCache]: Analyzing trace with hash -112049588, now seen corresponding path program 1 times [2019-12-07 14:45:38,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:45:38,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211887059] [2019-12-07 14:45:38,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 14:45:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:45:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:45:39,811 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:45:39,811 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:45:40,011 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 14:45:40,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:45:40 BoogieIcfgContainer [2019-12-07 14:45:40,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:45:40,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:45:40,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:45:40,099 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:45:40,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:45:34" (3/4) ... [2019-12-07 14:45:40,101 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:45:40,155 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ba01221f-7d06-493b-9836-e2178a9984fd/bin/utaipan/witness.graphml [2019-12-07 14:45:40,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:45:40,156 INFO L168 Benchmark]: Toolchain (without parser) took 6922.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.2 MB). Free memory was 952.4 MB in the beginning and 973.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 188.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:45:40,156 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 14:45:40,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:45:40,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.29 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 14:45:40,157 INFO L168 Benchmark]: Boogie Preprocessor took 29.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:45:40,157 INFO L168 Benchmark]: RCFGBuilder took 500.73 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: 74.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:45:40,157 INFO L168 Benchmark]: TraceAbstraction took 5910.69 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.0 GB in the beginning and 988.1 MB in the end (delta: 41.2 MB). Peak memory consumption was 115.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:45:40,157 INFO L168 Benchmark]: Witness Printer took 55.68 ms. Allocated memory is still 1.2 GB. Free memory was 988.1 MB in the beginning and 973.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:45:40,159 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 379.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.29 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 29.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 500.73 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: 74.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5910.69 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.0 GB in the beginning and 988.1 MB in the end (delta: 41.2 MB). Peak memory consumption was 115.6 MB. Max. memory is 11.5 GB. * Witness Printer took 55.68 ms. Allocated memory is still 1.2 GB. Free memory was 988.1 MB in the beginning and 973.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L610] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L833] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] int retValue_acc ; [L907] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] int retValue_acc ; [L435] retValue_acc = 1 [L436] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L269] COND FALSE !(\read(methaneLevelCritical)) [L272] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) [L231] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L68] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L75] COND TRUE \read(systemActive) [L97] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L100] COND TRUE ! pumpRunning [L194] int retValue_acc ; [L195] int tmp ; [L196] int tmp___0 ; [L319] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L322] COND FALSE !(waterLevel < 2) [L326] retValue_acc = 0 [L327] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] tmp = isHighWaterSensorDry() [L202] COND FALSE !(\read(tmp)) [L205] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L207] retValue_acc = tmp___0 [L208] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L102] tmp = isHighWaterLevel() [L104] COND TRUE \read(tmp) [L125] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L808] int tmp ; [L809] int tmp___0 ; [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L813] tmp = isMethaneLevelCritical() [L815] COND TRUE \read(tmp) [L149] int retValue_acc ; [L152] retValue_acc = pumpRunning [L153] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L817] tmp___0 = isPumpRunning() [L819] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 633 SDtfs, 955 SDslu, 1090 SDs, 0 SdLazy, 121 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 792 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 17502 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1685 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...