./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:41:04,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:41:04,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:41:04,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:41:04,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:41:04,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:41:04,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:41:04,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:41:04,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:41:04,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:41:04,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:41:04,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:41:04,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:41:04,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:41:04,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:41:04,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:41:04,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:41:04,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:41:04,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:41:04,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:41:04,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:41:04,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:41:04,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:41:04,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:41:04,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:41:04,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:41:04,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:41:04,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:41:04,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:41:04,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:41:04,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:41:04,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:41:04,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:41:04,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:41:04,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:41:04,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:41:04,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:41:04,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:41:04,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:41:04,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:41:04,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:41:04,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:41:04,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:41:04,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:41:04,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:41:04,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:41:04,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:41:04,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:41:04,759 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:41:04,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:41:04,759 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:41:04,760 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:41:04,761 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:41:04,761 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:41:04,761 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:41:04,761 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:41:04,762 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:41:04,762 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:41:04,762 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:41:04,762 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:41:04,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:41:04,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:41:04,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:41:04,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:41:04,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:41:04,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:41:04,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:41:04,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:41:04,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:41:04,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:41:04,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:41:04,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:04,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:41:04,768 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:41:04,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:41:04,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:41:04,768 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:41:04,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:41:04,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:41:04,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:41:04,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 [2022-11-19 06:41:05,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:41:05,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:41:05,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:41:05,180 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:41:05,181 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:41:05,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-19 06:41:05,272 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/17953caf4/182bc0b35d8c4c82bc46213379a4e9d2/FLAGa8bb8e059 [2022-11-19 06:41:05,978 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:41:05,979 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-19 06:41:05,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/17953caf4/182bc0b35d8c4c82bc46213379a4e9d2/FLAGa8bb8e059 [2022-11-19 06:41:06,282 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/17953caf4/182bc0b35d8c4c82bc46213379a4e9d2 [2022-11-19 06:41:06,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:41:06,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:41:06,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:06,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:41:06,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:41:06,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1785a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06, skipping insertion in model container [2022-11-19 06:41:06,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:41:06,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:41:06,583 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-19 06:41:06,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:06,666 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:41:06,678 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-19 06:41:06,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:06,768 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:41:06,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06 WrapperNode [2022-11-19 06:41:06,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:06,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:06,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:41:06,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:41:06,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,853 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 268 [2022-11-19 06:41:06,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:06,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:41:06,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:41:06,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:41:06,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:41:06,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:41:06,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:41:06,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:41:06,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (1/1) ... [2022-11-19 06:41:06,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:06,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:41:06,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:41:06,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:41:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:41:07,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:41:07,148 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:41:07,151 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:41:07,804 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:41:08,114 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:41:08,114 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:41:08,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:08 BoogieIcfgContainer [2022-11-19 06:41:08,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:41:08,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:41:08,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:41:08,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:41:08,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:41:06" (1/3) ... [2022-11-19 06:41:08,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b08c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:08, skipping insertion in model container [2022-11-19 06:41:08,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:06" (2/3) ... [2022-11-19 06:41:08,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b08c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:08, skipping insertion in model container [2022-11-19 06:41:08,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:08" (3/3) ... [2022-11-19 06:41:08,130 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Rrobin.c [2022-11-19 06:41:08,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:41:08,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:41:08,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:41:08,258 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3af002ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:41:08,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:41:08,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:41:08,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:08,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:41:08,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:08,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:08,291 INFO L85 PathProgramCache]: Analyzing trace with hash 5576331, now seen corresponding path program 1 times [2022-11-19 06:41:08,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:41:08,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560169133] [2022-11-19 06:41:08,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:08,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:41:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:41:08,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:41:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:41:08,863 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:41:08,865 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:41:08,867 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:41:08,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:41:08,876 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:41:08,882 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:41:08,914 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:41:08,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:41:08 BoogieIcfgContainer [2022-11-19 06:41:08,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:41:08,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:41:08,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:41:08,930 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:41:08,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:08" (3/4) ... [2022-11-19 06:41:08,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:41:08,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:41:08,940 INFO L158 Benchmark]: Toolchain (without parser) took 2653.45ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 64.4MB in the beginning and 58.8MB in the end (delta: 5.7MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-19 06:41:08,941 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:41:08,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.56ms. Allocated memory is still 96.5MB. Free memory was 64.2MB in the beginning and 68.7MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:41:08,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.02ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 65.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:41:08,946 INFO L158 Benchmark]: Boogie Preprocessor took 73.99ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:41:08,954 INFO L158 Benchmark]: RCFGBuilder took 1188.90ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 63.5MB in the beginning and 85.1MB in the end (delta: -21.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-11-19 06:41:08,955 INFO L158 Benchmark]: TraceAbstraction took 806.85ms. Allocated memory is still 119.5MB. Free memory was 84.1MB in the beginning and 59.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 06:41:08,956 INFO L158 Benchmark]: Witness Printer took 8.69ms. Allocated memory is still 119.5MB. Free memory was 59.0MB in the beginning and 58.8MB in the end (delta: 214.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:41:08,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.56ms. Allocated memory is still 96.5MB. Free memory was 64.2MB in the beginning and 68.7MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.02ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 65.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.99ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1188.90ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 63.5MB in the beginning and 85.1MB in the end (delta: -21.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * TraceAbstraction took 806.85ms. Allocated memory is still 119.5MB. Free memory was 84.1MB in the beginning and 59.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.69ms. Allocated memory is still 119.5MB. Free memory was 59.0MB in the beginning and 58.8MB in the end (delta: 214.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 84, overapproximation of bitwiseComplement at line 86, overapproximation of bitwiseAnd at line 71. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L29] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L31] const SORT_1 var_5 = 0; [L32] const SORT_8 var_10 = 0; [L33] const SORT_1 var_19 = 1; [L35] SORT_1 input_2; [L36] SORT_1 input_3; [L37] SORT_1 input_4; [L38] SORT_1 input_34; [L39] SORT_1 input_37; [L40] SORT_1 input_41; [L41] SORT_1 input_50; [L42] SORT_1 input_53; [L43] SORT_1 input_57; [L45] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_1 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L51] SORT_1 init_7_arg_1 = var_5; [L52] state_6 = init_7_arg_1 [L53] SORT_1 init_13_arg_1 = var_5; [L54] state_12 = init_13_arg_1 [L55] SORT_1 init_27_arg_1 = var_5; [L56] state_26 = init_27_arg_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_19=1, var_5=0] [L59] input_2 = __VERIFIER_nondet_uchar() [L60] input_3 = __VERIFIER_nondet_uchar() [L61] input_4 = __VERIFIER_nondet_uchar() [L62] input_34 = __VERIFIER_nondet_uchar() [L63] input_37 = __VERIFIER_nondet_uchar() [L64] input_41 = __VERIFIER_nondet_uchar() [L65] input_50 = __VERIFIER_nondet_uchar() [L66] input_53 = __VERIFIER_nondet_uchar() [L67] input_57 = __VERIFIER_nondet_uchar() [L70] SORT_1 var_9_arg_0 = state_6; [L71] var_9_arg_0 = var_9_arg_0 & mask_SORT_1 [L72] SORT_8 var_9 = var_9_arg_0; [L73] SORT_8 var_11_arg_0 = var_9; [L74] SORT_8 var_11_arg_1 = var_10; [L75] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L76] SORT_1 var_14_arg_0 = state_12; [L77] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L78] SORT_8 var_14 = var_14_arg_0; [L79] SORT_8 var_15_arg_0 = var_14; [L80] SORT_8 var_15_arg_1 = var_10; [L81] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L82] SORT_1 var_16_arg_0 = var_11; [L83] SORT_1 var_16_arg_1 = var_15; [L84] SORT_1 var_16 = var_16_arg_0 | var_16_arg_1; [L85] SORT_1 var_20_arg_0 = var_16; [L86] SORT_1 var_20 = ~var_20_arg_0; [L87] SORT_1 var_21_arg_0 = var_19; [L88] SORT_1 var_21_arg_1 = var_20; [L89] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L90] var_21 = var_21 & mask_SORT_1 [L91] SORT_1 bad_22_arg_0 = var_21; [L92] CALL __VERIFIER_assert(!(bad_22_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 06:41:08,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:41:11,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:41:11,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:41:11,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:41:11,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:41:11,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:41:11,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:41:11,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:41:11,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:41:11,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:41:11,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:41:11,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:41:11,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:41:11,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:41:11,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:41:11,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:41:11,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:41:11,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:41:11,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:41:11,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:41:11,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:41:11,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:41:11,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:41:11,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:41:11,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:41:11,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:41:11,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:41:11,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:41:11,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:41:11,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:41:11,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:41:11,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:41:11,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:41:11,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:41:11,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:41:11,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:41:11,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:41:11,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:41:11,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:41:11,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:41:11,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:41:11,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 06:41:11,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:41:11,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:41:11,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:41:11,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:41:11,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:41:11,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:41:11,742 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:41:11,743 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:41:11,743 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:41:11,743 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:41:11,748 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:41:11,748 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:41:11,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:41:11,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:41:11,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:41:11,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:41:11,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:41:11,750 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:41:11,750 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:41:11,750 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:41:11,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:41:11,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:41:11,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:41:11,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:41:11,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:41:11,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:41:11,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:11,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:41:11,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:41:11,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:41:11,753 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:41:11,753 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:41:11,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:41:11,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:41:11,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:41:11,754 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 [2022-11-19 06:41:12,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:41:12,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:41:12,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:41:12,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:41:12,232 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:41:12,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-19 06:41:12,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/2378bbb6b/ebf28efb3c9c428e8403a242444af1f0/FLAG4b0324fa2 [2022-11-19 06:41:12,992 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:41:12,993 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-19 06:41:13,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/2378bbb6b/ebf28efb3c9c428e8403a242444af1f0/FLAG4b0324fa2 [2022-11-19 06:41:13,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/data/2378bbb6b/ebf28efb3c9c428e8403a242444af1f0 [2022-11-19 06:41:13,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:41:13,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:41:13,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:13,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:41:13,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:41:13,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7332bcef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13, skipping insertion in model container [2022-11-19 06:41:13,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:41:13,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:41:13,539 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-19 06:41:13,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:13,628 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:41:13,640 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-19 06:41:13,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:13,753 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:41:13,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13 WrapperNode [2022-11-19 06:41:13,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:13,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:13,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:41:13,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:41:13,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,809 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 198 [2022-11-19 06:41:13,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:13,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:41:13,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:41:13,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:41:13,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:41:13,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:41:13,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:41:13,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:41:13,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (1/1) ... [2022-11-19 06:41:13,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:13,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:41:13,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:41:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:41:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:41:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:41:14,075 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:41:14,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:41:14,490 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:41:14,499 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:41:14,500 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:41:14,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:14 BoogieIcfgContainer [2022-11-19 06:41:14,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:41:14,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:41:14,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:41:14,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:41:14,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:41:13" (1/3) ... [2022-11-19 06:41:14,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79942a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:14, skipping insertion in model container [2022-11-19 06:41:14,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:13" (2/3) ... [2022-11-19 06:41:14,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79942a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:14, skipping insertion in model container [2022-11-19 06:41:14,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:14" (3/3) ... [2022-11-19 06:41:14,512 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Rrobin.c [2022-11-19 06:41:14,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:41:14,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:41:14,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:41:14,602 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c34ddce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:41:14,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:41:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 06:41:14,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:14,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 06:41:14,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 06:41:14,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:41:14,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481442433] [2022-11-19 06:41:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:14,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:41:14,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:41:14,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:41:14,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 06:41:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:14,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 06:41:14,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:15,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:41:15,138 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:41:15,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481442433] [2022-11-19 06:41:15,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481442433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:41:15,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:41:15,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:41:15,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498251495] [2022-11-19 06:41:15,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:41:15,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:41:15,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:41:15,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:41:15,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:41:15,208 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:15,299 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 06:41:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:41:15,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 06:41:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:15,322 INFO L225 Difference]: With dead ends: 20 [2022-11-19 06:41:15,322 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 06:41:15,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:41:15,334 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:15,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:41:15,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 06:41:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 06:41:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 06:41:15,369 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 06:41:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:15,369 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 06:41:15,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 06:41:15,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:41:15,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:15,370 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 06:41:15,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-19 06:41:15,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:41:15,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:15,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:15,577 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 06:41:15,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:41:15,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953166809] [2022-11-19 06:41:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:15,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:41:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:41:15,580 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:41:15,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 06:41:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:15,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-19 06:41:15,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:16,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:19,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:41:19,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953166809] [2022-11-19 06:41:19,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953166809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:19,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [665321310] [2022-11-19 06:41:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:19,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:41:19,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:41:19,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:41:19,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 06:41:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:19,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-19 06:41:19,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:20,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:21,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [665321310] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:21,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934524648] [2022-11-19 06:41:21,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:21,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:41:21,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:41:21,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:41:21,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:41:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:21,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-19 06:41:21,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:22,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:22,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:23,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934524648] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:23,756 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:41:23,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-19 06:41:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161040293] [2022-11-19 06:41:23,758 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:41:23,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 06:41:23,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:41:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 06:41:23,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-19 06:41:23,761 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:23,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:23,874 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 06:41:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:41:23,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 06:41:23,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:23,875 INFO L225 Difference]: With dead ends: 16 [2022-11-19 06:41:23,876 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 06:41:23,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-19 06:41:23,877 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:23,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 21 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2022-11-19 06:41:23,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 06:41:23,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 06:41:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 06:41:23,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 06:41:23,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:23,882 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 06:41:23,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 06:41:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 06:41:23,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:23,884 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 06:41:23,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:41:24,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 06:41:24,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:41:24,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 06:41:24,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:24,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:24,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 06:41:24,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:41:24,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681184112] [2022-11-19 06:41:24,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:41:24,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:41:24,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:41:24,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:41:24,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 06:41:24,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:41:24,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:41:24,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-19 06:41:24,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:41:27,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:41:31,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:41:31,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681184112] [2022-11-19 06:41:31,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681184112] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:31,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [212819610] [2022-11-19 06:41:31,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:41:31,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:41:31,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:41:31,042 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:41:31,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 06:41:31,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:41:31,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:41:31,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 157 conjunts are in the unsatisfiable core [2022-11-19 06:41:31,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:38,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:50,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [212819610] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057525659] [2022-11-19 06:41:50,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:41:50,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:41:50,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:41:50,828 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:41:50,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:41:51,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:41:51,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:41:51,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-19 06:41:51,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:53,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:41:55,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057525659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:55,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:41:55,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 6, 7, 6] total 16 [2022-11-19 06:41:55,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010562317] [2022-11-19 06:41:55,724 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:41:55,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 06:41:55,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:41:55,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 06:41:55,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-19 06:41:55,730 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:57,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:57,475 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-11-19 06:41:57,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:41:57,476 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 06:41:57,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:57,476 INFO L225 Difference]: With dead ends: 16 [2022-11-19 06:41:57,477 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:41:57,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2022-11-19 06:41:57,478 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:57,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 11 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2022-11-19 06:41:57,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:41:57,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:41:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:41:57,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-19 06:41:57,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:57,482 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:41:57,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:41:57,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:41:57,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:41:57,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:41:57,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 06:41:57,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-19 06:41:57,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 06:41:58,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:41:58,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:41:59,779 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:41:59,780 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 06:41:59,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:41:59,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 06:41:59,781 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-19 06:41:59,781 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 207) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_10~0#1| (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_main_~var_5~0#1| |ULTIMATE.start_main_~state_26~0#1|) (= |ULTIMATE.start_main_~state_6~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~state_6~0#1| |ULTIMATE.start_main_~var_5~0#1|) (= |ULTIMATE.start_main_~var_5~0#1| |ULTIMATE.start_main_~state_12~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_19~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~var_47_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_46_arg_0~0#1| (_ BitVec 8))) (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_46_arg_0~0#1|))))) (.cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_47_arg_0~0#1|)))))) (and (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse2))))))))))) |ULTIMATE.start_main_~state_6~0#1|) (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse3))))))))))) |ULTIMATE.start_main_~state_12~0#1|) (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse3))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))))))) .cse1))) [2022-11-19 06:41:59,781 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 207) no Hoare annotation was computed. [2022-11-19 06:41:59,782 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-19 06:41:59,782 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-19 06:41:59,782 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-19 06:41:59,782 INFO L895 garLoopResultBuilder]: At program point L208(lines 22 209) the Hoare annotation is: false [2022-11-19 06:41:59,786 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-19 06:41:59,789 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:41:59,799 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,800 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,801 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,801 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,808 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,808 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,809 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,809 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:41:59 BoogieIcfgContainer [2022-11-19 06:41:59,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:41:59,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:41:59,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:41:59,812 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:41:59,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:14" (3/4) ... [2022-11-19 06:41:59,817 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:41:59,829 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 06:41:59,830 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:41:59,830 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:41:59,859 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv8 == mask_SORT_1 && var_5 == state_26) && state_6 == 0bv8) && state_6 == var_5) && var_5 == state_12) && 1bv8 == var_19) && var_10 == 0bv32) || ((((1bv8 == mask_SORT_1 && var_5 == 0bv8) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_47_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_46_arg_0~0#1 : bv8 :: (~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_6 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_12) && 0bv8 == ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0]), ~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && var_10 == 0bv32) [2022-11-19 06:41:59,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:41:59,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:41:59,890 INFO L158 Benchmark]: Toolchain (without parser) took 46572.94ms. Allocated memory was 52.4MB in the beginning and 343.9MB in the end (delta: 291.5MB). Free memory was 29.4MB in the beginning and 130.7MB in the end (delta: -101.3MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. [2022-11-19 06:41:59,890 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:41:59,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.44ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.1MB in the beginning and 44.9MB in the end (delta: -15.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-19 06:41:59,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.46ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 42.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:41:59,892 INFO L158 Benchmark]: Boogie Preprocessor took 39.17ms. Allocated memory is still 62.9MB. Free memory was 42.4MB in the beginning and 40.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:41:59,892 INFO L158 Benchmark]: RCFGBuilder took 652.30ms. Allocated memory is still 62.9MB. Free memory was 40.5MB in the beginning and 35.3MB in the end (delta: 5.2MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-11-19 06:41:59,893 INFO L158 Benchmark]: TraceAbstraction took 45306.70ms. Allocated memory was 62.9MB in the beginning and 343.9MB in the end (delta: 281.0MB). Free memory was 34.8MB in the beginning and 134.9MB in the end (delta: -100.1MB). Peak memory consumption was 181.4MB. Max. memory is 16.1GB. [2022-11-19 06:41:59,893 INFO L158 Benchmark]: Witness Printer took 77.59ms. Allocated memory is still 343.9MB. Free memory was 134.9MB in the beginning and 130.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:41:59,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.44ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.1MB in the beginning and 44.9MB in the end (delta: -15.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.46ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 42.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.17ms. Allocated memory is still 62.9MB. Free memory was 42.4MB in the beginning and 40.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.30ms. Allocated memory is still 62.9MB. Free memory was 40.5MB in the beginning and 35.3MB in the end (delta: 5.2MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 45306.70ms. Allocated memory was 62.9MB in the beginning and 343.9MB in the end (delta: 281.0MB). Free memory was 34.8MB in the beginning and 134.9MB in the end (delta: -100.1MB). Peak memory consumption was 181.4MB. Max. memory is 16.1GB. * Witness Printer took 77.59ms. Allocated memory is still 343.9MB. Free memory was 134.9MB in the beginning and 130.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.2s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 23 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 73 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 94 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 134 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 38.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 36 QuantifiedInterpolants, 5016 SizeOfPredicates, 644 NumberOfNonLiveVariables, 1574 ConjunctsInSsa, 591 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 9/54 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant [2022-11-19 06:41:59,905 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,906 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,906 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,906 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,907 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,908 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,908 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_0~0#1,QUANTIFIED] [2022-11-19 06:41:59,908 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_0~0#1,QUANTIFIED] Derived loop invariant: ((((((1bv8 == mask_SORT_1 && var_5 == state_26) && state_6 == 0bv8) && state_6 == var_5) && var_5 == state_12) && 1bv8 == var_19) && var_10 == 0bv32) || ((((1bv8 == mask_SORT_1 && var_5 == 0bv8) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_47_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_46_arg_0~0#1 : bv8 :: (~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_6 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_12) && 0bv8 == ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0]), ~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && var_10 == 0bv32) RESULT: Ultimate proved your program to be correct! [2022-11-19 06:41:59,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b987b5a-c31a-4e25-9639-278f3a95424e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE