./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI --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 fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b --- 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-5e519f3 [2022-11-03 03:31:36,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:31:36,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:31:36,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:31:36,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:31:36,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:31:36,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:31:36,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:31:36,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:31:36,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:31:36,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:31:36,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:31:36,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:31:36,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:31:36,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:31:36,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:31:36,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:31:36,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:31:36,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:31:36,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:31:36,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:31:36,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:31:36,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:31:36,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:31:36,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:31:36,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:31:36,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:31:36,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:31:36,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:31:36,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:31:36,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:31:36,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:31:36,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:31:36,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:31:36,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:31:36,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:31:36,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:31:36,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:31:36,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:31:36,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:31:36,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:31:36,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:31:36,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:31:36,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:31:36,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:31:36,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:31:36,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:31:36,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:31:36,916 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:31:36,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:31:36,916 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:31:36,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:31:36,918 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:31:36,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:31:36,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:31:36,918 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:31:36,919 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:31:36,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:31:36,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:31:36,920 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:31:36,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:31:36,921 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:31:36,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:31:36,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:31:36,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:31:36,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:31:36,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:31:36,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:31:36,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:31:36,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:31:36,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:31:36,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:31:36,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:31:36,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:31:36,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:36,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:31:36,925 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:31:36,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:31:36,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:31:36,925 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:31:36,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:31:36,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:31:36,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:31:36,926 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_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b [2022-11-03 03:31:37,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:31:37,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:31:37,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:31:37,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:31:37,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:31:37,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2022-11-03 03:31:37,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/22bdb3c7c/c9e8fbdfa89b44a0a6757073b194de08/FLAG0c47b4f2a [2022-11-03 03:31:37,982 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:31:37,983 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2022-11-03 03:31:37,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/22bdb3c7c/c9e8fbdfa89b44a0a6757073b194de08/FLAG0c47b4f2a [2022-11-03 03:31:38,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/22bdb3c7c/c9e8fbdfa89b44a0a6757073b194de08 [2022-11-03 03:31:38,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:31:38,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:31:38,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:38,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:31:38,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:31:38,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753697fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38, skipping insertion in model container [2022-11-03 03:31:38,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:31:38,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:31:38,655 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_e91f1fc7-5d5d-483f-9394-39f9184c86fc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2022-11-03 03:31:38,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:38,675 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:31:38,715 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_e91f1fc7-5d5d-483f-9394-39f9184c86fc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2022-11-03 03:31:38,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:38,736 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:31:38,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38 WrapperNode [2022-11-03 03:31:38,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:38,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:38,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:31:38,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:31:38,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,781 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-11-03 03:31:38,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:38,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:31:38,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:31:38,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:31:38,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,823 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:31:38,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:31:38,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:31:38,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:31:38,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (1/1) ... [2022-11-03 03:31:38,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:38,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:38,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:31:38,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:31:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:31:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:31:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:31:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-03 03:31:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:31:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-03 03:31:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:31:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:31:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:31:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:31:39,001 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:31:39,003 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:31:39,428 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:31:39,629 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:31:39,629 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 03:31:39,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:39 BoogieIcfgContainer [2022-11-03 03:31:39,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:31:39,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:31:39,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:31:39,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:31:39,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:31:38" (1/3) ... [2022-11-03 03:31:39,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53382243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:39, skipping insertion in model container [2022-11-03 03:31:39,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:38" (2/3) ... [2022-11-03 03:31:39,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53382243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:39, skipping insertion in model container [2022-11-03 03:31:39,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:39" (3/3) ... [2022-11-03 03:31:39,644 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2022-11-03 03:31:39,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:31:39,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:31:39,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:31:39,779 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;@57ed95d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:31:39,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:31:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 03:31:39,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:39,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:39,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:39,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:39,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1053820573, now seen corresponding path program 1 times [2022-11-03 03:31:39,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:39,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991352159] [2022-11-03 03:31:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:39,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:40,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:40,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991352159] [2022-11-03 03:31:40,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991352159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:40,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:40,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:31:40,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95832702] [2022-11-03 03:31:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:40,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:31:40,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:40,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:31:40,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:31:40,095 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:40,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:40,166 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2022-11-03 03:31:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:31:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 03:31:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:40,181 INFO L225 Difference]: With dead ends: 39 [2022-11-03 03:31:40,182 INFO L226 Difference]: Without dead ends: 18 [2022-11-03 03:31:40,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:31:40,189 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:40,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:31:40,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-03 03:31:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-03 03:31:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-11-03 03:31:40,229 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2022-11-03 03:31:40,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:40,231 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-03 03:31:40,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-11-03 03:31:40,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 03:31:40,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:40,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:40,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:31:40,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:40,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash 121214260, now seen corresponding path program 1 times [2022-11-03 03:31:40,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:40,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984688805] [2022-11-03 03:31:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:40,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:31:40,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:31:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:31:40,368 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:31:40,369 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:31:40,371 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:31:40,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:31:40,377 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 03:31:40,380 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:31:40,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:31:40 BoogieIcfgContainer [2022-11-03 03:31:40,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:31:40,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:31:40,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:31:40,407 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:31:40,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:39" (3/4) ... [2022-11-03 03:31:40,413 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:31:40,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:31:40,415 INFO L158 Benchmark]: Toolchain (without parser) took 2061.67ms. Allocated memory is still 109.1MB. Free memory was 70.0MB in the beginning and 71.1MB in the end (delta: -1.1MB). Peak memory consumption was 564.0kB. Max. memory is 16.1GB. [2022-11-03 03:31:40,416 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:31:40,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.48ms. Allocated memory is still 109.1MB. Free memory was 69.8MB in the beginning and 84.5MB in the end (delta: -14.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 03:31:40,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.46ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 82.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:31:40,427 INFO L158 Benchmark]: Boogie Preprocessor took 46.11ms. Allocated memory is still 109.1MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:31:40,429 INFO L158 Benchmark]: RCFGBuilder took 804.03ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 57.5MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-03 03:31:40,430 INFO L158 Benchmark]: TraceAbstraction took 770.65ms. Allocated memory is still 109.1MB. Free memory was 56.7MB in the beginning and 71.1MB in the end (delta: -14.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:31:40,431 INFO L158 Benchmark]: Witness Printer took 7.35ms. Allocated memory is still 109.1MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:31:40,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.48ms. Allocated memory is still 109.1MB. Free memory was 69.8MB in the beginning and 84.5MB in the end (delta: -14.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.46ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 82.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.11ms. Allocated memory is still 109.1MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 804.03ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 57.5MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 770.65ms. Allocated memory is still 109.1MB. Free memory was 56.7MB in the beginning and 71.1MB in the end (delta: -14.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.35ms. Allocated memory is still 109.1MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L77] float x = -0.0f; [L78] CALL, EXPR floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000008, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000008] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000008, huge_floor=1000000000000000000000000000000, i=2139095040, i0=6, j0=128, x=1000000000000000000000000000008] [L25] COND FALSE !(j0 < 23) [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [\old(x)=1000000000000000000000000000008, \result=1000000000000000000000000000008, huge_floor=1000000000000000000000000000000, i=2139095040, i0=6, j0=128, x=1000000000000000000000000000008] [L78] RET, EXPR floor_float(x) [L78] float res = floor_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000008, res == -0.0f && __signbit_float(res) == 1=0, x=1000000000000000000000000000008] [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000008, x=1000000000000000000000000000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 could not prove your program: unable to determine feasibility of some traces [2022-11-03 03:31:40,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI --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 fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b --- 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-5e519f3 [2022-11-03 03:31:43,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:31:43,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:31:43,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:31:43,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:31:43,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:31:43,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:31:43,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:31:43,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:31:43,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:31:43,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:31:43,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:31:43,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:31:43,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:31:43,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:31:43,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:31:43,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:31:43,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:31:43,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:31:43,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:31:43,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:31:43,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:31:43,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:31:43,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:31:43,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:31:43,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:31:43,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:31:43,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:31:43,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:31:43,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:31:43,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:31:43,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:31:43,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:31:43,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:31:43,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:31:43,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:31:43,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:31:43,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:31:43,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:31:43,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:31:43,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:31:43,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 03:31:43,224 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:31:43,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:31:43,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:31:43,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:31:43,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:31:43,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:31:43,227 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:31:43,228 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:31:43,228 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:31:43,228 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:31:43,229 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:31:43,230 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:31:43,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:31:43,232 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:31:43,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:31:43,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:31:43,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:31:43,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:31:43,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:31:43,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:31:43,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:31:43,234 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:31:43,234 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:31:43,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:31:43,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:31:43,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:31:43,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:31:43,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:31:43,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:31:43,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:43,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:31:43,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:31:43,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:31:43,237 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:31:43,237 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:31:43,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:31:43,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:31:43,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:31:43,239 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_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b [2022-11-03 03:31:43,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:31:43,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:31:43,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:31:43,722 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:31:43,722 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:31:43,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2022-11-03 03:31:43,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/9b40eac24/2158036d46e04585bbf006cfc4e1e986/FLAGa2f8688aa [2022-11-03 03:31:44,474 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:31:44,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2022-11-03 03:31:44,488 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/9b40eac24/2158036d46e04585bbf006cfc4e1e986/FLAGa2f8688aa [2022-11-03 03:31:44,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/data/9b40eac24/2158036d46e04585bbf006cfc4e1e986 [2022-11-03 03:31:44,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:31:44,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:31:44,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:44,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:31:44,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:31:44,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfeb030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44, skipping insertion in model container [2022-11-03 03:31:44,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:31:44,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:31:45,202 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_e91f1fc7-5d5d-483f-9394-39f9184c86fc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2022-11-03 03:31:45,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:45,257 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:31:45,325 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_e91f1fc7-5d5d-483f-9394-39f9184c86fc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2022-11-03 03:31:45,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:45,349 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:31:45,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45 WrapperNode [2022-11-03 03:31:45,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:45,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:45,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:31:45,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:31:45,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,428 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-11-03 03:31:45,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:45,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:31:45,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:31:45,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:31:45,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,468 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:31:45,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:31:45,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:31:45,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:31:45,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (1/1) ... [2022-11-03 03:31:45,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:45,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:45,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:31:45,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:31:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:31:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:31:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:31:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-03 03:31:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 03:31:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:31:45,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:31:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-03 03:31:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 03:31:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:31:45,718 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:31:45,721 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:31:46,507 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:31:46,513 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:31:46,513 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 03:31:46,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:46 BoogieIcfgContainer [2022-11-03 03:31:46,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:31:46,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:31:46,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:31:46,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:31:46,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:31:44" (1/3) ... [2022-11-03 03:31:46,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc1f0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:46, skipping insertion in model container [2022-11-03 03:31:46,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:45" (2/3) ... [2022-11-03 03:31:46,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc1f0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:46, skipping insertion in model container [2022-11-03 03:31:46,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:46" (3/3) ... [2022-11-03 03:31:46,524 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2022-11-03 03:31:46,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:31:46,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:31:46,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:31:46,637 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;@7ca7a62e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:31:46,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:31:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:46,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:31:46,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:46,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:46,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2022-11-03 03:31:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:46,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648687310] [2022-11-03 03:31:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:46,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:46,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:46,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:46,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:31:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:46,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 03:31:46,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:46,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:46,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:46,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648687310] [2022-11-03 03:31:46,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648687310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:46,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:46,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:31:46,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409303043] [2022-11-03 03:31:46,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:46,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:31:46,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:46,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:31:46,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:31:46,896 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:46,926 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2022-11-03 03:31:46,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:31:46,929 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 03:31:46,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:46,940 INFO L225 Difference]: With dead ends: 58 [2022-11-03 03:31:46,940 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 03:31:46,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:31:46,951 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:46,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:31:46,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 03:31:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 03:31:46,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-03 03:31:46,997 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2022-11-03 03:31:46,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:46,997 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-03 03:31:46,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:46,998 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-03 03:31:46,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 03:31:46,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:46,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:47,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:47,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:47,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:47,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:47,219 INFO L85 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2022-11-03 03:31:47,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:47,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965853227] [2022-11-03 03:31:47,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:47,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:47,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:47,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:47,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:31:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:47,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:31:47,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:47,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:47,636 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:47,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965853227] [2022-11-03 03:31:47,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965853227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:47,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:47,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:31:47,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700394742] [2022-11-03 03:31:47,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:47,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:31:47,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:31:47,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:31:47,641 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:48,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:48,014 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2022-11-03 03:31:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:31:48,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 03:31:48,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:48,016 INFO L225 Difference]: With dead ends: 36 [2022-11-03 03:31:48,016 INFO L226 Difference]: Without dead ends: 26 [2022-11-03 03:31:48,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:31:48,018 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:48,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 96 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 6 Unchecked, 0.3s Time] [2022-11-03 03:31:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-03 03:31:48,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-03 03:31:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-11-03 03:31:48,024 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2022-11-03 03:31:48,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:48,024 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-11-03 03:31:48,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:48,025 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-03 03:31:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:31:48,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:48,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:48,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:48,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:48,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:48,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:48,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1311186430, now seen corresponding path program 1 times [2022-11-03 03:31:48,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:48,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393235751] [2022-11-03 03:31:48,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:48,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:48,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:48,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:48,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 03:31:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:48,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:31:48,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:48,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:48,469 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:48,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393235751] [2022-11-03 03:31:48,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393235751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:48,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:48,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:31:48,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219637909] [2022-11-03 03:31:48,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:48,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:31:48,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:48,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:31:48,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:31:48,472 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:48,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:48,687 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-11-03 03:31:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:31:48,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 03:31:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:48,689 INFO L225 Difference]: With dead ends: 38 [2022-11-03 03:31:48,689 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 03:31:48,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:31:48,691 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:48,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 4 Unchecked, 0.2s Time] [2022-11-03 03:31:48,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 03:31:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-03 03:31:48,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-03 03:31:48,697 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2022-11-03 03:31:48,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:48,698 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-03 03:31:48,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:48,698 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-03 03:31:48,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 03:31:48,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:48,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:48,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:48,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:48,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:48,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:48,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2022-11-03 03:31:48,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:48,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312787342] [2022-11-03 03:31:48,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:48,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:48,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:48,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:48,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 03:31:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:49,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:31:49,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:49,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:49,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:49,251 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312787342] [2022-11-03 03:31:49,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312787342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:49,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:49,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:31:49,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892544856] [2022-11-03 03:31:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:49,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:31:49,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:49,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:31:49,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:31:49,255 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:49,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:49,306 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-11-03 03:31:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:31:49,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 03:31:49,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:49,310 INFO L225 Difference]: With dead ends: 34 [2022-11-03 03:31:49,311 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 03:31:49,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:31:49,312 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 28 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:49,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:31:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 03:31:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-03 03:31:49,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:49,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-11-03 03:31:49,323 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2022-11-03 03:31:49,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:49,324 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-11-03 03:31:49,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-03 03:31:49,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:31:49,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:49,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:49,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:49,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:49,545 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:49,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:49,546 INFO L85 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2022-11-03 03:31:49,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:49,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573120486] [2022-11-03 03:31:49,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:49,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:49,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:49,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:49,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:31:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:49,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:31:49,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:49,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:49,937 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:49,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573120486] [2022-11-03 03:31:49,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573120486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:49,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:49,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:31:49,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918145175] [2022-11-03 03:31:49,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:49,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:31:49,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:31:49,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:31:49,941 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:50,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:50,035 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2022-11-03 03:31:50,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:31:50,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 03:31:50,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:50,037 INFO L225 Difference]: With dead ends: 46 [2022-11-03 03:31:50,038 INFO L226 Difference]: Without dead ends: 34 [2022-11-03 03:31:50,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:31:50,040 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 33 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:50,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 52 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:31:50,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-03 03:31:50,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2022-11-03 03:31:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-03 03:31:50,047 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2022-11-03 03:31:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:50,048 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-03 03:31:50,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-03 03:31:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:31:50,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:50,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:50,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:50,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:50,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:50,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:50,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2022-11-03 03:31:50,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:50,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3649757] [2022-11-03 03:31:50,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:50,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:50,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:50,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:50,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 03:31:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:50,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 03:31:50,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:50,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:50,553 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:50,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3649757] [2022-11-03 03:31:50,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3649757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:50,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:50,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:31:50,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689833906] [2022-11-03 03:31:50,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:50,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:31:50,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:50,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:31:50,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:31:50,556 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:50,644 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-11-03 03:31:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:31:50,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 03:31:50,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:50,647 INFO L225 Difference]: With dead ends: 34 [2022-11-03 03:31:50,647 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 03:31:50,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:31:50,659 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:50,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 56 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-11-03 03:31:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 03:31:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-03 03:31:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:50,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-11-03 03:31:50,664 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2022-11-03 03:31:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:50,664 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-11-03 03:31:50,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:50,664 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-11-03 03:31:50,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:31:50,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:50,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:50,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:50,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:50,866 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:50,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2022-11-03 03:31:50,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:50,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574021572] [2022-11-03 03:31:50,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:50,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:50,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:50,868 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:50,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 03:31:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:51,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 03:31:51,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:51,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 03:31:51,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2022-11-03 03:31:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:51,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:51,335 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:51,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574021572] [2022-11-03 03:31:51,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574021572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:51,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:51,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:31:51,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314535315] [2022-11-03 03:31:51,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:51,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:31:51,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:31:51,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:31:51,341 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:51,429 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2022-11-03 03:31:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:31:51,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 03:31:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:51,431 INFO L225 Difference]: With dead ends: 25 [2022-11-03 03:31:51,431 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 03:31:51,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:31:51,432 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 23 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:51,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 39 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-11-03 03:31:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 03:31:51,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-03 03:31:51,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2022-11-03 03:31:51,436 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2022-11-03 03:31:51,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:51,437 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2022-11-03 03:31:51,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2022-11-03 03:31:51,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 03:31:51,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:51,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:51,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:51,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:51,652 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:51,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2022-11-03 03:31:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:31:51,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251046833] [2022-11-03 03:31:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:51,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:31:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:31:51,656 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:31:51,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 03:31:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:51,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 03:31:51,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:51,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 03:31:51,970 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 03:31:51,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2022-11-03 03:31:52,183 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:52,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 29 [2022-11-03 03:31:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:52,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:52,347 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:31:52,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251046833] [2022-11-03 03:31:52,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251046833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:52,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:52,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-03 03:31:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955102294] [2022-11-03 03:31:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:52,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 03:31:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:31:52,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 03:31:52,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:31:52,350 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:52,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:52,454 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-11-03 03:31:52,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:31:52,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-03 03:31:52,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:52,455 INFO L225 Difference]: With dead ends: 22 [2022-11-03 03:31:52,455 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:31:52,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:31:52,456 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:52,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 67 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2022-11-03 03:31:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:31:52,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:31:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:52,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:31:52,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-03 03:31:52,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:52,458 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:31:52,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:52,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:31:52,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:31:52,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:31:52,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:52,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:31:52,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:31:53,096 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2022-11-03 03:31:53,096 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2022-11-03 03:31:53,096 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2022-11-03 03:31:53,096 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-11-03 03:31:53,096 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-03 03:31:53,096 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 03:31:53,096 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-03 03:31:53,097 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 32) no Hoare annotation was computed. [2022-11-03 03:31:53,097 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2022-11-03 03:31:53,097 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse2 (fp.neg (_ +zero 8 24)))) (and (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17|) (_ bv0 32)))) (and (= |ULTIMATE.start___signbit_float_~x#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= .cse1 .cse0) (= .cse2 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))))) (= |ULTIMATE.start_floor_float_~x#1| .cse2) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) |ULTIMATE.start_main_#t~short9#1| (= |ULTIMATE.start_floor_float_#res#1| .cse2) (= currentRoundingMode roundNearestTiesToEven))) [2022-11-03 03:31:53,098 INFO L899 garLoopResultBuilder]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2022-11-03 03:31:53,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2022-11-03 03:31:53,098 INFO L902 garLoopResultBuilder]: At program point L86(lines 70 87) the Hoare annotation is: true [2022-11-03 03:31:53,098 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-11-03 03:31:53,098 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2022-11-03 03:31:53,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:31:53,098 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 49) no Hoare annotation was computed. [2022-11-03 03:31:53,098 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2022-11-03 03:31:53,099 INFO L895 garLoopResultBuilder]: At program point L50-1(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_~x#1| .cse0) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17|) (_ bv0 32)))) (and (= .cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= .cse1 |ULTIMATE.start_floor_float_~i0~0#1|)))))) [2022-11-03 03:31:53,099 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2022-11-03 03:31:53,099 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2022-11-03 03:31:53,099 INFO L895 garLoopResultBuilder]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_~x#1| .cse0) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) |ULTIMATE.start_main_#t~short9#1| (= |ULTIMATE.start_floor_float_#res#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2022-11-03 03:31:53,099 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2022-11-03 03:31:53,100 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 43) no Hoare annotation was computed. [2022-11-03 03:31:53,100 INFO L895 garLoopResultBuilder]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_~x#1| .cse0) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17|) (_ bv0 32))) (.cse2 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11|) (_ bv0 32)))) (and (= .cse1 .cse2) (= .cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= |ULTIMATE.start_floor_float_#res#1| (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) (= currentRoundingMode roundNearestTiesToEven))) [2022-11-03 03:31:53,100 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2022-11-03 03:31:53,100 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= |ULTIMATE.start_floor_float_~x#1| (fp.neg (_ +zero 8 24))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-03 03:31:53,100 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2022-11-03 03:31:53,100 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2022-11-03 03:31:53,101 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2022-11-03 03:31:53,106 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:53,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:31:53,127 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,159 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:31:53 BoogieIcfgContainer [2022-11-03 03:31:53,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:31:53,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:31:53,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:31:53,160 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:31:53,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:46" (3/4) ... [2022-11-03 03:31:53,164 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:31:53,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-03 03:31:53,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-03 03:31:53,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:31:53,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:31:53,204 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == i0) [2022-11-03 03:31:53,204 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32] && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && \result == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][22:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-03 03:31:53,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][22:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-03 03:31:53,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && \result == 1bv32) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-03 03:31:53,216 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:31:53,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:31:53,218 INFO L158 Benchmark]: Toolchain (without parser) took 8348.36ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 50.4MB in the beginning and 76.8MB in the end (delta: -26.4MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-03 03:31:53,218 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 33.9MB in the beginning and 33.9MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:31:53,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.15ms. Allocated memory is still 73.4MB. Free memory was 50.1MB in the beginning and 54.9MB in the end (delta: -4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:31:53,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.89ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 53.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:31:53,219 INFO L158 Benchmark]: Boogie Preprocessor took 42.69ms. Allocated memory is still 73.4MB. Free memory was 53.0MB in the beginning and 51.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:31:53,220 INFO L158 Benchmark]: RCFGBuilder took 1040.59ms. Allocated memory is still 73.4MB. Free memory was 51.3MB in the beginning and 37.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:31:53,220 INFO L158 Benchmark]: TraceAbstraction took 6642.45ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 80.0MB in the end (delta: -42.8MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-03 03:31:53,221 INFO L158 Benchmark]: Witness Printer took 56.89ms. Allocated memory is still 100.7MB. Free memory was 80.0MB in the beginning and 76.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:31:53,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 33.9MB in the beginning and 33.9MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.15ms. Allocated memory is still 73.4MB. Free memory was 50.1MB in the beginning and 54.9MB in the end (delta: -4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.89ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 53.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.69ms. Allocated memory is still 73.4MB. Free memory was 53.0MB in the beginning and 51.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1040.59ms. Allocated memory is still 73.4MB. Free memory was 51.3MB in the beginning and 37.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6642.45ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 80.0MB in the end (delta: -42.8MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Witness Printer took 56.89ms. Allocated memory is still 100.7MB. Free memory was 80.0MB in the beginning and 76.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 452 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 55 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 182 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 232 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 111 ConstructedInterpolants, 31 QuantifiedInterpolants, 1289 SizeOfPredicates, 50 NumberOfNonLiveVariables, 418 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2022-11-03 03:31:53,249 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,254 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && \result == 1bv32) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 18]: Loop Invariant [2022-11-03 03:31:53,263 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,263 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2022-11-03 03:31:53,264 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,265 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == i0) - InvariantResult [Line: 61]: Loop Invariant [2022-11-03 03:31:53,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,269 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,271 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][22:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2022-11-03 03:31:53,272 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,272 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,272 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,272 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,273 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,273 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,273 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,273 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,273 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 03:31:53,274 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,274 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,274 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17,QUANTIFIED] [2022-11-03 03:31:53,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11,QUANTIFIED] [2022-11-03 03:31:53,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32] && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && \result == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_11][0bv32][22:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-11-03 03:31:53,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91f1fc7-5d5d-483f-9394-39f9184c86fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE