./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI --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 32bit --witnessprinter.graph.data.programhash 114d533d92237361aa003dcd39d341dc055adac5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI --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 32bit --witnessprinter.graph.data.programhash 114d533d92237361aa003dcd39d341dc055adac5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:56,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:56,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:56,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:56,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:56,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:56,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:56,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:56,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:56,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:56,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:56,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:56,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:56,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:56,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:56,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:56,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:56,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:56,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:56,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:56,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:56,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:56,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:56,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:56,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:56,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:56,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:56,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:56,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:56,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:56,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:56,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:56,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:56,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:56,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:56,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:56,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:56,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:56,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:56,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:56,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:56,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:56,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:56,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:56,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:56,775 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:56,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:56,775 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:56,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:56,776 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:56,776 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:56,776 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:56,776 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:56,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:56,777 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:56,777 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:56,777 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:56,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:56,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:56,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:56,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:56,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:56,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:56,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:56,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:56,784 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:56,784 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:56,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:56,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:56,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:56,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:56,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:56,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:56,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:56,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:56,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:56,787 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:56,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:56,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:56,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:56,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:56,790 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 114d533d92237361aa003dcd39d341dc055adac5 [2021-10-11 02:20:57,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:57,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:57,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:57,150 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:57,151 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:57,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c [2021-10-11 02:20:57,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/e8c8cc806/83c28dcd7ad244048f8c78e6358e529c/FLAG0651c55b8 [2021-10-11 02:20:57,665 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:57,666 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c [2021-10-11 02:20:57,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/e8c8cc806/83c28dcd7ad244048f8c78e6358e529c/FLAG0651c55b8 [2021-10-11 02:20:58,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/e8c8cc806/83c28dcd7ad244048f8c78e6358e529c [2021-10-11 02:20:58,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:58,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:58,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:58,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:58,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:58,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335b06be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58, skipping insertion in model container [2021-10-11 02:20:58,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:58,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:58,483 WARN L226 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_e29c7c95-4006-4d42-99cf-f73758159f63/sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c[21205,21218] [2021-10-11 02:20:58,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:58,517 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:58,650 WARN L226 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_e29c7c95-4006-4d42-99cf-f73758159f63/sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c[21205,21218] [2021-10-11 02:20:58,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:58,676 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:58,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58 WrapperNode [2021-10-11 02:20:58,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:58,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:58,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:58,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:58,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:58,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:58,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:58,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:58,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:59,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:59,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:59,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:59,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:59,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:20:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:21:15,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:15,585 INFO L299 CfgBuilder]: Removed 792 assume(true) statements. [2021-10-11 02:21:15,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:15 BoogieIcfgContainer [2021-10-11 02:21:15,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:15,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:15,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:15,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:15,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:58" (1/3) ... [2021-10-11 02:21:15,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e2b789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:15, skipping insertion in model container [2021-10-11 02:21:15,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (2/3) ... [2021-10-11 02:21:15,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e2b789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:15, skipping insertion in model container [2021-10-11 02:21:15,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:15" (3/3) ... [2021-10-11 02:21:15,598 INFO L111 eAbstractionObserver]: Analyzing ICFG aim-100-2-0-sat-1.c [2021-10-11 02:21:15,612 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:15,616 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:21:15,628 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:21:15,652 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:15,653 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:15,653 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:15,653 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:15,653 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:15,653 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:15,654 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:15,654 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2021-10-11 02:21:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:21:15,670 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:15,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:21:15,671 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:15,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:15,677 INFO L82 PathProgramCache]: Analyzing trace with hash 126109, now seen corresponding path program 1 times [2021-10-11 02:21:15,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:15,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276275080] [2021-10-11 02:21:15,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:16,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:17,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:17,156 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:21:17,157 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:21:17,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:21:17,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:17 BoogieIcfgContainer [2021-10-11 02:21:17,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:17,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:17,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:17,280 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:17,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:15" (3/4) ... [2021-10-11 02:21:17,293 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:21:17,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:17,302 INFO L168 Benchmark]: Toolchain (without parser) took 19282.38 ms. Allocated memory was 88.1 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 53.1 MB in the beginning and 2.1 GB in the end (delta: -2.1 GB). Peak memory consumption was 354.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:17,304 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:17,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.06 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 52.9 MB in the beginning and 77.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:17,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 213.68 ms. Allocated memory is still 123.7 MB. Free memory was 77.6 MB in the beginning and 52.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:17,310 INFO L168 Benchmark]: Boogie Preprocessor took 205.41 ms. Allocated memory is still 123.7 MB. Free memory was 52.5 MB in the beginning and 89.8 MB in the end (delta: -37.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:17,312 INFO L168 Benchmark]: RCFGBuilder took 16489.30 ms. Allocated memory was 123.7 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 89.8 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 798.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:17,313 INFO L168 Benchmark]: TraceAbstraction took 1688.76 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 218.1 MB). Peak memory consumption was 218.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:17,314 INFO L168 Benchmark]: Witness Printer took 19.95 ms. Allocated memory is still 2.5 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:17,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 657.06 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 52.9 MB in the beginning and 77.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 213.68 ms. Allocated memory is still 123.7 MB. Free memory was 77.6 MB in the beginning and 52.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 205.41 ms. Allocated memory is still 123.7 MB. Free memory was 52.5 MB in the beginning and 89.8 MB in the end (delta: -37.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16489.30 ms. Allocated memory was 123.7 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 89.8 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 798.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1688.76 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 218.1 MB). Peak memory consumption was 218.1 MB. Max. memory is 16.1 GB. * Witness Printer took 19.95 ms. Allocated memory is still 2.5 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: 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 428. Possible FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int var9; [L64] var9 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L67] int var10; [L68] var10 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L71] int var11; [L72] var11 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L75] int var12; [L76] var12 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L79] int var13; [L80] var13 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L83] int var14; [L84] var14 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L87] int var15; [L88] var15 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L91] int var16; [L92] var16 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L95] int var17; [L96] var17 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L99] int var18; [L100] var18 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L103] int var19; [L104] var19 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L107] int var20; [L108] var20 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L111] int var21; [L112] var21 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L115] int var22; [L116] var22 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L119] int var23; [L120] var23 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L123] int var24; [L124] var24 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L127] int var25; [L128] var25 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L131] int var26; [L132] var26 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L135] int var27; [L136] var27 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L139] int var28; [L140] var28 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L143] int var29; [L144] var29 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L147] int var30; [L148] var30 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L151] int var31; [L152] var31 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L155] int var32; [L156] var32 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L159] int var33; [L160] var33 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L163] int var34; [L164] var34 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L167] int var35; [L168] var35 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L171] int var36; [L172] var36 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L175] int var37; [L176] var37 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L179] int var38; [L180] var38 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L183] int var39; [L184] var39 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L187] int var40; [L188] var40 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L191] int var41; [L192] var41 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L195] int var42; [L196] var42 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L199] int var43; [L200] var43 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L203] int var44; [L204] var44 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L207] int var45; [L208] var45 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L211] int var46; [L212] var46 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L215] int var47; [L216] var47 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L219] int var48; [L220] var48 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L223] int var49; [L224] var49 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L227] int var50; [L228] var50 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L231] int var51; [L232] var51 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L235] int var52; [L236] var52 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L239] int var53; [L240] var53 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L243] int var54; [L244] var54 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L247] int var55; [L248] var55 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L251] int var56; [L252] var56 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L255] int var57; [L256] var57 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L259] int var58; [L260] var58 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L263] int var59; [L264] var59 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L267] int var60; [L268] var60 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L271] int var61; [L272] var61 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L275] int var62; [L276] var62 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L279] int var63; [L280] var63 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L283] int var64; [L284] var64 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L287] int var65; [L288] var65 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L291] int var66; [L292] var66 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L295] int var67; [L296] var67 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L299] int var68; [L300] var68 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L303] int var69; [L304] var69 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L307] int var70; [L308] var70 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L311] int var71; [L312] var71 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L315] int var72; [L316] var72 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L319] int var73; [L320] var73 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L323] int var74; [L324] var74 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L327] int var75; [L328] var75 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L331] int var76; [L332] var76 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L335] int var77; [L336] var77 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L339] int var78; [L340] var78 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L343] int var79; [L344] var79 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L347] int var80; [L348] var80 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L351] int var81; [L352] var81 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L355] int var82; [L356] var82 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L359] int var83; [L360] var83 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L363] int var84; [L364] var84 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L367] int var85; [L368] var85 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L371] int var86; [L372] var86 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L375] int var87; [L376] var87 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L379] int var88; [L380] var88 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L383] int var89; [L384] var89 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L387] int var90; [L388] var90 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L391] int var91; [L392] var91 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L395] int var92; [L396] var92 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L399] int var93; [L400] var93 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L403] int var94; [L404] var94 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L407] int var95; [L408] var95 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L411] int var96; [L412] var96 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L415] int var97; [L416] var97 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L419] int var98; [L420] var98 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L423] int var99; [L424] var99 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L427] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L626] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:21:20,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:20,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:20,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:20,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:20,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:20,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:20,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:20,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:20,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:20,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:20,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:20,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:20,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:20,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:20,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:20,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:20,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:20,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:20,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:20,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:20,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:20,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:20,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:20,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:20,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:20,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:20,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:20,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:20,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:20,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:20,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:20,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:20,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:20,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:20,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:20,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:20,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:20,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:20,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:20,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:20,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:21:20,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:20,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:20,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:20,276 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:20,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:20,276 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:20,276 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:20,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:20,277 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:20,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:20,279 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:20,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:20,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:20,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:20,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:20,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:20,281 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:20,281 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:21:20,281 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:21:20,281 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:20,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:20,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:20,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:20,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:20,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:21:20,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:20,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:20,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:20,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:20,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:20,284 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:21:20,284 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:21:20,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:20,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:20,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:20,285 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_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 114d533d92237361aa003dcd39d341dc055adac5 [2021-10-11 02:21:20,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:20,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:20,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:20,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:20,718 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:20,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c [2021-10-11 02:21:20,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/a0fd58859/863f76750ca84b1dbdffb8c578faca9f/FLAGe2dec49b0 [2021-10-11 02:21:21,436 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:21,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c [2021-10-11 02:21:21,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/a0fd58859/863f76750ca84b1dbdffb8c578faca9f/FLAGe2dec49b0 [2021-10-11 02:21:21,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/data/a0fd58859/863f76750ca84b1dbdffb8c578faca9f [2021-10-11 02:21:21,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:21,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:21,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:21,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:21,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:21,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:21" (1/1) ... [2021-10-11 02:21:21,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c3b5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:21, skipping insertion in model container [2021-10-11 02:21:21,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:21" (1/1) ... [2021-10-11 02:21:21,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:21,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:22,153 WARN L226 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_e29c7c95-4006-4d42-99cf-f73758159f63/sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c[21205,21218] [2021-10-11 02:21:22,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:22,217 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:21:22,350 WARN L226 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_e29c7c95-4006-4d42-99cf-f73758159f63/sv-benchmarks/c/xcsp/aim-100-2-0-sat-1.c[21205,21218] [2021-10-11 02:21:22,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:22,371 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:21:22,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22 WrapperNode [2021-10-11 02:21:22,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:22,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:22,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:21:22,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:21:22,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:22,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:21:22,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:21:22,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:21:22,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:21:22,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:21:22,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:21:22,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:21:22,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:22,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:21:22,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:21:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:21:25,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:25,618 INFO L299 CfgBuilder]: Removed 792 assume(true) statements. [2021-10-11 02:21:25,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:25 BoogieIcfgContainer [2021-10-11 02:21:25,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:25,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:25,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:25,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:25,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:21" (1/3) ... [2021-10-11 02:21:25,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11365b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:25, skipping insertion in model container [2021-10-11 02:21:25,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22" (2/3) ... [2021-10-11 02:21:25,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11365b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:25, skipping insertion in model container [2021-10-11 02:21:25,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:25" (3/3) ... [2021-10-11 02:21:25,630 INFO L111 eAbstractionObserver]: Analyzing ICFG aim-100-2-0-sat-1.c [2021-10-11 02:21:25,643 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:25,647 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:21:25,659 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:21:25,688 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:25,688 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:25,688 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:25,688 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:25,689 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:25,689 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:25,689 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:25,689 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states. [2021-10-11 02:21:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2021-10-11 02:21:25,778 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:25,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:25,780 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:25,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:25,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1854495849, now seen corresponding path program 1 times [2021-10-11 02:21:25,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:25,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225882670] [2021-10-11 02:21:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:26,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:21:26,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:28,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:28,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225882670] [2021-10-11 02:21:28,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:28,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:28,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237657690] [2021-10-11 02:21:28,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:21:28,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:28,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:21:28,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:28,023 INFO L87 Difference]: Start difference. First operand 794 states. Second operand 2 states. [2021-10-11 02:21:28,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:28,095 INFO L93 Difference]: Finished difference Result 1582 states and 2368 transitions. [2021-10-11 02:21:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:21:28,096 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 790 [2021-10-11 02:21:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:28,118 INFO L225 Difference]: With dead ends: 1582 [2021-10-11 02:21:28,121 INFO L226 Difference]: Without dead ends: 791 [2021-10-11 02:21:28,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:28,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-10-11 02:21:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2021-10-11 02:21:28,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2021-10-11 02:21:28,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 790 transitions. [2021-10-11 02:21:28,233 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 790 transitions. Word has length 790 [2021-10-11 02:21:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:28,233 INFO L481 AbstractCegarLoop]: Abstraction has 791 states and 790 transitions. [2021-10-11 02:21:28,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:21:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 790 transitions. [2021-10-11 02:21:28,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2021-10-11 02:21:28,265 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:28,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:28,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:21:28,476 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:28,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:28,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1123875063, now seen corresponding path program 1 times [2021-10-11 02:21:28,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:28,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236864095] [2021-10-11 02:21:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:36,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:43,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:45,751 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:21:45,751 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:21:45,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:21:46,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:46 BoogieIcfgContainer [2021-10-11 02:21:46,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:46,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:46,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:46,414 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:46,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:25" (3/4) ... [2021-10-11 02:21:46,416 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:21:46,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e29c7c95-4006-4d42-99cf-f73758159f63/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:46,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:46,769 INFO L168 Benchmark]: Toolchain (without parser) took 25061.46 ms. Allocated memory was 75.5 MB in the beginning and 262.1 MB in the end (delta: 186.6 MB). Free memory was 39.7 MB in the beginning and 82.1 MB in the end (delta: -42.4 MB). Peak memory consumption was 146.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:46,769 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:46,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.89 ms. Allocated memory is still 75.5 MB. Free memory was 39.5 MB in the beginning and 46.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:46,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 239.93 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 44.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:46,772 INFO L168 Benchmark]: Boogie Preprocessor took 171.60 ms. Allocated memory is still 75.5 MB. Free memory was 44.2 MB in the beginning and 34.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:46,773 INFO L168 Benchmark]: RCFGBuilder took 2830.82 ms. Allocated memory was 75.5 MB in the beginning and 138.4 MB in the end (delta: 62.9 MB). Free memory was 34.1 MB in the beginning and 66.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:46,773 INFO L168 Benchmark]: TraceAbstraction took 20788.61 ms. Allocated memory was 138.4 MB in the beginning and 262.1 MB in the end (delta: 123.7 MB). Free memory was 65.8 MB in the beginning and 169.1 MB in the end (delta: -103.3 MB). Peak memory consumption was 151.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:46,774 INFO L168 Benchmark]: Witness Printer took 353.61 ms. Allocated memory is still 262.1 MB. Free memory was 168.1 MB in the beginning and 82.1 MB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:46,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 664.89 ms. Allocated memory is still 75.5 MB. Free memory was 39.5 MB in the beginning and 46.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 239.93 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 44.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 171.60 ms. Allocated memory is still 75.5 MB. Free memory was 44.2 MB in the beginning and 34.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2830.82 ms. Allocated memory was 75.5 MB in the beginning and 138.4 MB in the end (delta: 62.9 MB). Free memory was 34.1 MB in the beginning and 66.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20788.61 ms. Allocated memory was 138.4 MB in the beginning and 262.1 MB in the end (delta: 123.7 MB). Free memory was 65.8 MB in the beginning and 169.1 MB in the end (delta: -103.3 MB). Peak memory consumption was 151.5 MB. Max. memory is 16.1 GB. * Witness Printer took 353.61 ms. Allocated memory is still 262.1 MB. Free memory was 168.1 MB in the beginning and 82.1 MB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 626]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int var9; [L64] var9 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L67] int var10; [L68] var10 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L71] int var11; [L72] var11 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L75] int var12; [L76] var12 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L79] int var13; [L80] var13 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L83] int var14; [L84] var14 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L87] int var15; [L88] var15 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L91] int var16; [L92] var16 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L95] int var17; [L96] var17 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L99] int var18; [L100] var18 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L103] int var19; [L104] var19 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L107] int var20; [L108] var20 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L111] int var21; [L112] var21 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L115] int var22; [L116] var22 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L119] int var23; [L120] var23 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L123] int var24; [L124] var24 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L127] int var25; [L128] var25 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L131] int var26; [L132] var26 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L135] int var27; [L136] var27 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L139] int var28; [L140] var28 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L143] int var29; [L144] var29 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L147] int var30; [L148] var30 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L151] int var31; [L152] var31 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L155] int var32; [L156] var32 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L159] int var33; [L160] var33 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L163] int var34; [L164] var34 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L167] int var35; [L168] var35 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L171] int var36; [L172] var36 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L175] int var37; [L176] var37 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L179] int var38; [L180] var38 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L183] int var39; [L184] var39 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L187] int var40; [L188] var40 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L191] int var41; [L192] var41 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L195] int var42; [L196] var42 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L199] int var43; [L200] var43 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L203] int var44; [L204] var44 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L207] int var45; [L208] var45 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L211] int var46; [L212] var46 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L215] int var47; [L216] var47 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L219] int var48; [L220] var48 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L223] int var49; [L224] var49 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L227] int var50; [L228] var50 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L231] int var51; [L232] var51 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L235] int var52; [L236] var52 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L239] int var53; [L240] var53 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L243] int var54; [L244] var54 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L247] int var55; [L248] var55 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L251] int var56; [L252] var56 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L255] int var57; [L256] var57 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L259] int var58; [L260] var58 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L263] int var59; [L264] var59 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L267] int var60; [L268] var60 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L271] int var61; [L272] var61 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L275] int var62; [L276] var62 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L279] int var63; [L280] var63 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L283] int var64; [L284] var64 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L287] int var65; [L288] var65 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L291] int var66; [L292] var66 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L295] int var67; [L296] var67 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L299] int var68; [L300] var68 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L303] int var69; [L304] var69 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L307] int var70; [L308] var70 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L311] int var71; [L312] var71 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L315] int var72; [L316] var72 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L319] int var73; [L320] var73 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L323] int var74; [L324] var74 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L327] int var75; [L328] var75 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L331] int var76; [L332] var76 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L335] int var77; [L336] var77 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L339] int var78; [L340] var78 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L343] int var79; [L344] var79 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L347] int var80; [L348] var80 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L351] int var81; [L352] var81 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L355] int var82; [L356] var82 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L359] int var83; [L360] var83 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L363] int var84; [L364] var84 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L367] int var85; [L368] var85 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L371] int var86; [L372] var86 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L375] int var87; [L376] var87 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L379] int var88; [L380] var88 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L383] int var89; [L384] var89 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L387] int var90; [L388] var90 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L391] int var91; [L392] var91 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L395] int var92; [L396] var92 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L399] int var93; [L400] var93 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L403] int var94; [L404] var94 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L407] int var95; [L408] var95 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L411] int var96; [L412] var96 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L415] int var97; [L416] var97 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L419] int var98; [L420] var98 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L423] int var99; [L424] var99 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L427] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L626] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 794 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 790 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 789 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=794occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 7.9s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1580 NumberOfCodeBlocks, 1580 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 789 ConstructedInterpolants, 0 QuantifiedInterpolants, 622521 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1306 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! Received shutdown request...