./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh --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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:50:48,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:50:48,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:50:48,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:50:48,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:50:48,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:50:48,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:50:48,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:50:48,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:50:48,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:50:48,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:50:48,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:50:48,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:50:48,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:50:48,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:50:48,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:50:48,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:50:48,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:50:48,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:50:48,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:50:48,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:50:48,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:50:48,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:50:48,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:50:48,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:50:48,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:50:48,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:50:48,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:50:48,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:50:48,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:50:48,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:50:48,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:50:48,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:50:48,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:50:48,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:50:48,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:50:48,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:50:48,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:50:48,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:50:48,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:50:48,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:50:48,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:50:48,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:50:48,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:50:48,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:50:48,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:50:48,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:50:48,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:50:48,820 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:50:48,820 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:50:48,820 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:50:48,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:50:48,820 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:50:48,820 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:50:48,820 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:50:48,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:50:48,821 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:50:48,821 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:50:48,821 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:50:48,821 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:50:48,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:50:48,822 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:50:48,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:50:48,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:50:48,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:50:48,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:50:48,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:50:48,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:50:48,823 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:50:48,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:50:48,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:50:48,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:50:48,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:50:48,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:50:48,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:50:48,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:50:48,824 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:50:48,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:50:48,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:50:48,824 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:50:48,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:50:48,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:50:48,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:50:48,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-12-14 15:50:48,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:50:48,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:50:49,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:50:49,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:50:49,001 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:50:49,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-14 15:50:51,665 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:50:51,878 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:50:51,878 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-14 15:50:51,895 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/data/0302e60c0/9da643803b4c4c5eb4bbf5ab4c0026be/FLAGc2ccec1e8 [2022-12-14 15:50:51,907 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/data/0302e60c0/9da643803b4c4c5eb4bbf5ab4c0026be [2022-12-14 15:50:51,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:50:51,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:50:51,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:50:51,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:50:51,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:50:51,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:50:51" (1/1) ... [2022-12-14 15:50:51,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69065ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:51, skipping insertion in model container [2022-12-14 15:50:51,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:50:51" (1/1) ... [2022-12-14 15:50:51,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:50:51,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:50:52,064 WARN L237 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_32756a55-626b-4027-83b3-515277b62aa9/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-14 15:50:52,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:50:52,172 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:50:52,181 WARN L237 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_32756a55-626b-4027-83b3-515277b62aa9/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-14 15:50:52,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:50:52,215 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:50:52,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52 WrapperNode [2022-12-14 15:50:52,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:50:52,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:50:52,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:50:52,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:50:52,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,242 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-14 15:50:52,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:50:52,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:50:52,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:50:52,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:50:52,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:50:52,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:50:52,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:50:52,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:50:52,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (1/1) ... [2022-12-14 15:50:52,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:50:52,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:50:52,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:50:52,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:50:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:50:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:50:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:50:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 15:50:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 15:50:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:50:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:50:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:50:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:50:52,310 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 15:50:52,410 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:50:52,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:50:52,499 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:50:52,504 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:50:52,504 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:50:52,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:50:52 BoogieIcfgContainer [2022-12-14 15:50:52,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:50:52,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:50:52,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:50:52,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:50:52,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:50:51" (1/3) ... [2022-12-14 15:50:52,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d72311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:50:52, skipping insertion in model container [2022-12-14 15:50:52,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:50:52" (2/3) ... [2022-12-14 15:50:52,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d72311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:50:52, skipping insertion in model container [2022-12-14 15:50:52,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:50:52" (3/3) ... [2022-12-14 15:50:52,514 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-14 15:50:52,521 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 15:50:52,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:50:52,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:50:52,530 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 15:50:52,567 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 15:50:52,596 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 15:50:52,607 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 91 flow [2022-12-14 15:50:52,609 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 91 flow [2022-12-14 15:50:52,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2022-12-14 15:50:52,635 INFO L130 PetriNetUnfolder]: 1/42 cut-off events. [2022-12-14 15:50:52,635 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 15:50:52,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-12-14 15:50:52,639 INFO L119 LiptonReduction]: Number of co-enabled transitions 256 [2022-12-14 15:50:53,624 INFO L134 LiptonReduction]: Checked pairs total: 192 [2022-12-14 15:50:53,624 INFO L136 LiptonReduction]: Total number of compositions: 46 [2022-12-14 15:50:53,631 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 10 places, 6 transitions, 17 flow [2022-12-14 15:50:53,640 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:50:53,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:50:53,659 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35d97cc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:50:53,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 15:50:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:50:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:50:53,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:53,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:50:53,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:50:53,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash 178399, now seen corresponding path program 1 times [2022-12-14 15:50:53,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669962156] [2022-12-14 15:50:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:53,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:50:53,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:50:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:50:53,793 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:50:53,795 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:50:53,796 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-14 15:50:53,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-14 15:50:53,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-14 15:50:53,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:50:53,801 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 15:50:53,808 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 15:50:53,808 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:50:53,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:50:53 BasicIcfg [2022-12-14 15:50:53,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:50:53,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:50:53,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:50:53,821 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:50:53,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:50:52" (3/4) ... [2022-12-14 15:50:53,822 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 15:50:53,843 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:50:53,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:50:53,844 INFO L158 Benchmark]: Toolchain (without parser) took 1932.72ms. Allocated memory is still 153.1MB. Free memory was 121.5MB in the beginning and 67.1MB in the end (delta: 54.4MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2022-12-14 15:50:53,845 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:50:53,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.00ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 102.7MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 15:50:53,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.56ms. Allocated memory is still 153.1MB. Free memory was 102.7MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:50:53,846 INFO L158 Benchmark]: Boogie Preprocessor took 14.86ms. Allocated memory is still 153.1MB. Free memory was 100.7MB in the beginning and 100.0MB in the end (delta: 695.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:50:53,847 INFO L158 Benchmark]: RCFGBuilder took 247.42ms. Allocated memory is still 153.1MB. Free memory was 100.0MB in the beginning and 88.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 15:50:53,847 INFO L158 Benchmark]: TraceAbstraction took 1312.72ms. Allocated memory is still 153.1MB. Free memory was 88.1MB in the beginning and 69.0MB in the end (delta: 19.1MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-12-14 15:50:53,848 INFO L158 Benchmark]: Witness Printer took 22.66ms. Allocated memory is still 153.1MB. Free memory was 69.0MB in the beginning and 67.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:50:53,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.00ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 102.7MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.56ms. Allocated memory is still 153.1MB. Free memory was 102.7MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.86ms. Allocated memory is still 153.1MB. Free memory was 100.7MB in the beginning and 100.0MB in the end (delta: 695.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 247.42ms. Allocated memory is still 153.1MB. Free memory was 100.0MB in the beginning and 88.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1312.72ms. Allocated memory is still 153.1MB. Free memory was 88.1MB in the beginning and 69.0MB in the end (delta: 19.1MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 22.66ms. Allocated memory is still 153.1MB. Free memory was 69.0MB in the beginning and 67.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 46 PlacesBefore, 10 PlacesAfterwards, 43 TransitionsBefore, 6 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 46 TotalNumberOfCompositions, 192 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 192, independent: 192, independent conditional: 0, independent unconditional: 192, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 170, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 170, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 192, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 170, unknown conditional: 0, unknown unconditional: 170] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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! [2022-12-14 15:50:53,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32756a55-626b-4027-83b3-515277b62aa9/bin/utaipan-gh47qXpMRh/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