./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-005.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-005.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7 --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 a9f3ee9eee9186ec2e7139b6da07915cfbf3926b7d28b3dac4ebf3fd8205beb2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:17:22,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:17:22,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:17:22,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:17:22,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:17:22,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:17:22,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:17:22,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:17:22,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:17:22,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:17:22,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:17:22,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:17:22,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:17:22,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:17:22,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:17:22,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:17:22,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:17:22,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:17:22,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:17:22,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:17:22,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:17:22,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:17:22,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:17:22,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:17:22,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:17:22,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:17:22,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:17:22,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:17:22,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:17:22,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:17:22,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:17:22,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:17:22,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:17:22,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:17:22,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:17:22,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:17:22,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:17:22,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:17:22,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:17:22,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:17:22,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:17:22,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:17:22,999 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:17:22,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:17:23,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:17:23,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:17:23,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:17:23,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:17:23,009 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:17:23,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:17:23,010 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:17:23,010 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:17:23,011 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:17:23,012 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:17:23,012 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:17:23,012 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:17:23,012 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:17:23,013 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:17:23,013 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:17:23,013 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:17:23,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:17:23,014 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:17:23,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:17:23,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:17:23,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:17:23,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:17:23,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:17:23,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:17:23,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:17:23,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:17:23,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:17:23,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:17:23,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:17:23,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:17:23,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:17:23,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:17:23,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:17:23,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:17:23,021 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:17:23,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:17:23,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:17:23,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:17:23,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:17:23,022 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_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9f3ee9eee9186ec2e7139b6da07915cfbf3926b7d28b3dac4ebf3fd8205beb2 [2021-11-25 18:17:23,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:17:23,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:17:23,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:17:23,429 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:17:23,430 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:17:23,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/xcsp/AllInterval-005.c [2021-11-25 18:17:23,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/data/10b9d14d0/3af81cc4979a46faad47e616f4479bb9/FLAG506c73f0f [2021-11-25 18:17:24,161 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:17:24,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/sv-benchmarks/c/xcsp/AllInterval-005.c [2021-11-25 18:17:24,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/data/10b9d14d0/3af81cc4979a46faad47e616f4479bb9/FLAG506c73f0f [2021-11-25 18:17:24,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/data/10b9d14d0/3af81cc4979a46faad47e616f4479bb9 [2021-11-25 18:17:24,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:17:24,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:17:24,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:17:24,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:17:24,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:17:24,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329f7756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24, skipping insertion in model container [2021-11-25 18:17:24,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:17:24,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:17:24,800 WARN L230 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_e92382bd-29e4-4d8c-a44c-eb685abf827b/sv-benchmarks/c/xcsp/AllInterval-005.c[2566,2579] [2021-11-25 18:17:24,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:17:24,815 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:17:24,845 WARN L230 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_e92382bd-29e4-4d8c-a44c-eb685abf827b/sv-benchmarks/c/xcsp/AllInterval-005.c[2566,2579] [2021-11-25 18:17:24,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:17:24,862 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:17:24,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24 WrapperNode [2021-11-25 18:17:24,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:17:24,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:17:24,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:17:24,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:17:24,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,933 INFO L137 Inliner]: procedures = 13, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2021-11-25 18:17:24,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:17:24,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:17:24,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:17:24,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:17:24,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:24,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:17:24,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:17:24,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:17:24,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:17:24,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (1/1) ... [2021-11-25 18:17:25,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:17:25,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:17:25,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:17:25,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:17:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:17:25,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:17:25,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:17:25,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:17:25,089 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-25 18:17:25,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-25 18:17:25,167 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:17:25,170 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:17:25,379 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:17:25,492 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:17:25,492 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:17:25,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:17:25 BoogieIcfgContainer [2021-11-25 18:17:25,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:17:25,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:17:25,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:17:25,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:17:25,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:17:24" (1/3) ... [2021-11-25 18:17:25,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad05c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:17:25, skipping insertion in model container [2021-11-25 18:17:25,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:24" (2/3) ... [2021-11-25 18:17:25,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad05c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:17:25, skipping insertion in model container [2021-11-25 18:17:25,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:17:25" (3/3) ... [2021-11-25 18:17:25,512 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-005.c [2021-11-25 18:17:25,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:17:25,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:17:25,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:17:25,609 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:17:25,609 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:17:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-25 18:17:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-25 18:17:25,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:17:25,676 INFO L514 BasicCegarLoop]: trace histogram [38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:17:25,676 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:17:25,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:17:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1115377556, now seen corresponding path program 1 times [2021-11-25 18:17:25,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:17:25,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140374309] [2021-11-25 18:17:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:17:25,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:17:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:17:26,540 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:17:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:17:26,903 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:17:26,906 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:17:26,908 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 18:17:26,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:17:26,917 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-25 18:17:26,922 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:17:27,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:17:27 BoogieIcfgContainer [2021-11-25 18:17:27,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:17:27,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:17:27,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:17:27,020 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:17:27,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:17:25" (3/4) ... [2021-11-25 18:17:27,023 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 18:17:27,136 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:17:27,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:17:27,138 INFO L158 Benchmark]: Toolchain (without parser) took 2625.45ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 68.4MB in the beginning and 75.7MB in the end (delta: -7.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-11-25 18:17:27,138 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:17:27,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.74ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 73.0MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:17:27,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.69ms. Allocated memory is still 96.5MB. Free memory was 73.0MB in the beginning and 71.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:17:27,140 INFO L158 Benchmark]: Boogie Preprocessor took 40.45ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 70.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:17:27,140 INFO L158 Benchmark]: RCFGBuilder took 520.68ms. Allocated memory is still 96.5MB. Free memory was 70.3MB in the beginning and 56.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 18:17:27,141 INFO L158 Benchmark]: TraceAbstraction took 1520.03ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.6MB in the beginning and 82.6MB in the end (delta: -27.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2021-11-25 18:17:27,141 INFO L158 Benchmark]: Witness Printer took 117.45ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 76.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 18:17:27,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.74ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 73.0MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.69ms. Allocated memory is still 96.5MB. Free memory was 73.0MB in the beginning and 71.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.45ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 70.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.68ms. Allocated memory is still 96.5MB. Free memory was 70.3MB in the beginning and 56.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1520.03ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.6MB in the beginning and 82.6MB in the end (delta: -27.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 117.45ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 76.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 93]: 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() [L29] CALL assume(var0 >= 0) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L29] RET assume(var0 >= 0) VAL [dummy=0, var0=0] [L30] CALL assume(var0 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L30] RET assume(var0 <= 4) VAL [dummy=0, var0=0] [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L33] CALL assume(var1 >= 0) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L33] RET assume(var1 >= 0) VAL [dummy=0, var0=0, var1=4] [L34] CALL assume(var1 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L34] RET assume(var1 <= 4) VAL [dummy=0, var0=0, var1=4] [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L37] CALL assume(var2 >= 0) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L37] RET assume(var2 >= 0) VAL [dummy=0, var0=0, var1=4, var2=1] [L38] CALL assume(var2 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L38] RET assume(var2 <= 4) VAL [dummy=0, var0=0, var1=4, var2=1] [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L41] CALL assume(var3 >= 0) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L41] RET assume(var3 >= 0) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3] [L42] CALL assume(var3 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L42] RET assume(var3 <= 4) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3] [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L45] CALL assume(var4 >= 0) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L45] RET assume(var4 >= 0) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2] [L46] CALL assume(var4 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L46] RET assume(var4 <= 4) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2] [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L49] CALL assume(var5 >= 1) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L49] RET assume(var5 >= 1) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4] [L50] CALL assume(var5 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L50] RET assume(var5 <= 4) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4] [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L53] CALL assume(var6 >= 1) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L53] RET assume(var6 >= 1) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3] [L54] CALL assume(var6 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L54] RET assume(var6 <= 4) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3] [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L57] CALL assume(var7 >= 1) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L57] RET assume(var7 >= 1) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2] [L58] CALL assume(var7 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L58] RET assume(var7 <= 4) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2] [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L61] CALL assume(var8 >= 1) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L61] RET assume(var8 >= 1) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L62] CALL assume(var8 <= 4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L62] RET assume(var8 <= 4) VAL [dummy=0, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L63] int myvar0 = 1; VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L64] CALL assume(var0 != var1) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L64] RET assume(var0 != var1) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L65] CALL assume(var0 != var2) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L65] RET assume(var0 != var2) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L66] CALL assume(var0 != var3) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L66] RET assume(var0 != var3) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L67] CALL assume(var0 != var4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L67] RET assume(var0 != var4) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L68] CALL assume(var1 != var2) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L68] RET assume(var1 != var2) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L69] CALL assume(var1 != var3) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L69] RET assume(var1 != var3) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L70] CALL assume(var1 != var4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L70] RET assume(var1 != var4) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L71] CALL assume(var2 != var3) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L71] RET assume(var2 != var3) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L72] CALL assume(var2 != var4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L72] RET assume(var2 != var4) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L73] CALL assume(var3 != var4) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L73] RET assume(var3 != var4) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L74] CALL assume(var5 != var6) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L74] RET assume(var5 != var6) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L75] CALL assume(var5 != var7) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L75] RET assume(var5 != var7) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L76] CALL assume(var5 != var8) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L76] RET assume(var5 != var8) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L77] CALL assume(var6 != var7) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L77] RET assume(var6 != var7) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L78] CALL assume(var6 != var8) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L78] RET assume(var6 != var8) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L79] CALL assume(var7 != var8) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L79] RET assume(var7 != var8) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1] [L80] int var_for_abs; [L81] var_for_abs = var0 - var1 [L82] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L82] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L83] CALL assume(var5 == var_for_abs) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L83] RET assume(var5 == var_for_abs) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1, var_for_abs=4] [L84] var_for_abs = var1 - var2 [L85] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L85] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L86] CALL assume(var6 == var_for_abs) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L86] RET assume(var6 == var_for_abs) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1, var_for_abs=3] [L87] var_for_abs = var2 - var3 [L88] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L88] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L89] CALL assume(var7 == var_for_abs) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L89] RET assume(var7 == var_for_abs) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1, var_for_abs=2] [L90] var_for_abs = var3 - var4 [L91] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L91] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L92] CALL assume(var8 == var_for_abs) VAL [\old(cond)=1] [L20] COND FALSE !(!cond) [L92] RET assume(var8 == var_for_abs) VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1, var_for_abs=1] [L93] reach_error() VAL [dummy=0, myvar0=1, var0=0, var1=4, var2=1, var3=3, var4=2, var5=4, var6=3, var7=2, var8=1, var_for_abs=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 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 proved your program to be incorrect! [2021-11-25 18:17:27,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e92382bd-29e4-4d8c-a44c-eb685abf827b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE