./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b --- 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 [2022-11-02 20:17:01,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:17:01,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:17:01,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:17:01,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:17:01,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:17:01,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:17:01,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:17:01,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:17:01,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:17:01,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:17:01,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:17:01,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:17:01,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:17:01,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:17:01,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:17:01,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:17:01,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:17:01,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:17:01,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:17:01,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:17:01,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:17:01,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:17:01,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:17:01,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:17:01,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:17:01,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:17:01,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:17:01,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:17:01,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:17:01,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:17:01,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:17:01,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:17:01,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:17:01,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:17:01,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:17:01,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:17:01,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:17:01,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:17:01,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:17:01,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:17:01,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:17:01,806 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:17:01,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:17:01,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:17:01,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:17:01,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:17:01,809 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:17:01,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:17:01,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:17:01,810 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:17:01,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:17:01,812 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:17:01,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:17:01,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:17:01,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:17:01,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:17:01,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:17:01,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:17:01,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:17:01,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:17:01,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:17:01,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:17:01,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:17:01,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:17:01,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:17:01,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:01,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:17:01,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:17:01,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:17:01,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:17:01,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:17:01,826 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:17:01,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:17:01,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:17:01,827 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_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b [2022-11-02 20:17:02,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:17:02,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:17:02,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:17:02,170 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:17:02,171 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:17:02,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2022-11-02 20:17:02,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/35cc8ba0f/1a0231190f014e838d51c09225a0679f/FLAG1f9609898 [2022-11-02 20:17:02,857 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:17:02,860 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2022-11-02 20:17:02,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/35cc8ba0f/1a0231190f014e838d51c09225a0679f/FLAG1f9609898 [2022-11-02 20:17:03,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/35cc8ba0f/1a0231190f014e838d51c09225a0679f [2022-11-02 20:17:03,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:17:03,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:17:03,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:03,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:17:03,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:17:03,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d05c238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03, skipping insertion in model container [2022-11-02 20:17:03,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:17:03,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:17:03,523 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_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2022-11-02 20:17:03,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:03,537 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:17:03,565 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_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2022-11-02 20:17:03,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:03,583 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:17:03,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03 WrapperNode [2022-11-02 20:17:03,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:03,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:03,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:17:03,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:17:03,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,627 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-11-02 20:17:03,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:03,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:17:03,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:17:03,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:17:03,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:17:03,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:17:03,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:17:03,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:17:03,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (1/1) ... [2022-11-02 20:17:03,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:03,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:03,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:03,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:17:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:17:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:17:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:17:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-02 20:17:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:17:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-02 20:17:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:17:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:17:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:17:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:17:03,920 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:17:03,922 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:17:04,318 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:17:04,325 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:17:04,326 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:17:04,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:04 BoogieIcfgContainer [2022-11-02 20:17:04,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:17:04,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:17:04,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:17:04,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:17:04,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:17:03" (1/3) ... [2022-11-02 20:17:04,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e60625d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:04, skipping insertion in model container [2022-11-02 20:17:04,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:03" (2/3) ... [2022-11-02 20:17:04,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e60625d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:04, skipping insertion in model container [2022-11-02 20:17:04,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:04" (3/3) ... [2022-11-02 20:17:04,353 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2022-11-02 20:17:04,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:17:04,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:17:04,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:17:04,485 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=PETRI_NET, 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;@2ff4ee18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:17:04,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:17:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:17:04,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:17:04,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:04,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:04,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:04,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:04,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2022-11-02 20:17:04,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:04,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074390309] [2022-11-02 20:17:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:04,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:04,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:04,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074390309] [2022-11-02 20:17:04,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074390309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:04,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:04,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:17:04,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406823690] [2022-11-02 20:17:04,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:04,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:17:04,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:04,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:17:04,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:17:04,842 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-02 20:17:04,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:04,869 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2022-11-02 20:17:04,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:17:04,872 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 [2022-11-02 20:17:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:04,883 INFO L225 Difference]: With dead ends: 48 [2022-11-02 20:17:04,884 INFO L226 Difference]: Without dead ends: 22 [2022-11-02 20:17:04,887 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 [2022-11-02 20:17:04,894 INFO L413 NwaCegarLoop]: 30 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, 30 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 [2022-11-02 20:17:04,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:17:04,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-02 20:17:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-02 20:17:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2022-11-02 20:17:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-02 20:17:04,951 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2022-11-02 20:17:04,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:04,952 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-02 20:17:04,953 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) [2022-11-02 20:17:04,953 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-02 20:17:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:17:04,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:04,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:04,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:17:04,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:04,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:04,958 INFO L85 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2022-11-02 20:17:04,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:04,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439949957] [2022-11-02 20:17:04,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:04,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:05,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:05,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:05,181 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:17:05,183 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:17:05,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:17:05,189 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:17:05,192 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:17:05,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:17:05 BoogieIcfgContainer [2022-11-02 20:17:05,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:17:05,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:17:05,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:17:05,224 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:17:05,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:04" (3/4) ... [2022-11-02 20:17:05,230 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:17:05,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:17:05,233 INFO L158 Benchmark]: Toolchain (without parser) took 2030.82ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 63.4MB in the beginning and 102.4MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:05,234 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:05,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.85ms. Allocated memory is still 107.0MB. Free memory was 63.3MB in the beginning and 80.3MB in the end (delta: -17.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:17:05,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.10ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 78.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:05,244 INFO L158 Benchmark]: Boogie Preprocessor took 35.66ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:05,245 INFO L158 Benchmark]: RCFGBuilder took 663.62ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 63.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 20:17:05,246 INFO L158 Benchmark]: TraceAbstraction took 890.48ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 62.4MB in the beginning and 103.1MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:05,246 INFO L158 Benchmark]: Witness Printer took 7.50ms. Allocated memory is still 130.0MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:05,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.85ms. Allocated memory is still 107.0MB. Free memory was 63.3MB in the beginning and 80.3MB in the end (delta: -17.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.10ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 78.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.66ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.62ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 63.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 890.48ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 62.4MB in the beginning and 103.1MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.50ms. Allocated memory is still 130.0MB. Free memory is still 102.4MB. 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 25, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = -0.0f; [L78] CALL, EXPR round_float(x) [L15] __uint32_t w; [L17] int exponent_less_127; VAL [\old(x)=2139095049, x=2139095049] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=2139095049, exponent_less_127=128, w=2139095041, x=2139095049] [L27] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=2139095049, exponent_less_127=128, w=2139095041, x=2139095049] [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; VAL [\old(x)=2139095049, exponent_less_127=128, w=2139095041, x=2139095049] [L78] RET, EXPR round_float(x) [L78] float res = round_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=2139095050, res == -0.0f && __signbit_float(res) == 1=0, x=2139095049] [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L82] reach_error() VAL [res=2139095050, x=2139095049] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 0 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=25occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2022-11-02 20:17:05,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b --- 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 [2022-11-02 20:17:08,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:17:08,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:17:08,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:17:08,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:17:08,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:17:08,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:17:08,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:17:08,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:17:08,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:17:08,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:17:08,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:17:08,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:17:08,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:17:08,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:17:08,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:17:08,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:17:08,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:17:08,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:17:08,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:17:08,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:17:08,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:17:08,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:17:08,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:17:08,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:17:08,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:17:08,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:17:08,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:17:08,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:17:08,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:17:08,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:17:08,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:17:08,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:17:08,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:17:08,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:17:08,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:17:08,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:17:08,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:17:08,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:17:08,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:17:08,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:17:08,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 20:17:08,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:17:08,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:17:08,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:17:08,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:17:08,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:17:08,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:17:08,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:17:08,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:17:08,251 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:17:08,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:17:08,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:17:08,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:17:08,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:17:08,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:17:08,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:17:08,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:17:08,254 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:17:08,255 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:17:08,255 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:17:08,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:17:08,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:17:08,256 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:17:08,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:17:08,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:17:08,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:17:08,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:17:08,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:08,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:17:08,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:17:08,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:17:08,258 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:17:08,258 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:17:08,259 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:17:08,259 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:17:08,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:17:08,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:17:08,260 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_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b [2022-11-02 20:17:08,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:17:08,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:17:08,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:17:08,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:17:08,806 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:17:08,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2022-11-02 20:17:08,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/20a685d08/576f1458bc214ccd886585d735c920c4/FLAG69c5f26b6 [2022-11-02 20:17:09,460 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:17:09,460 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2022-11-02 20:17:09,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/20a685d08/576f1458bc214ccd886585d735c920c4/FLAG69c5f26b6 [2022-11-02 20:17:09,815 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/data/20a685d08/576f1458bc214ccd886585d735c920c4 [2022-11-02 20:17:09,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:17:09,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:17:09,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:09,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:17:09,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:17:09,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:09" (1/1) ... [2022-11-02 20:17:09,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670a7524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:09, skipping insertion in model container [2022-11-02 20:17:09,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:09" (1/1) ... [2022-11-02 20:17:09,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:17:09,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:17:10,160 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_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2022-11-02 20:17:10,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:10,231 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:17:10,286 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_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2022-11-02 20:17:10,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:10,322 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:17:10,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10 WrapperNode [2022-11-02 20:17:10,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:10,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:10,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:17:10,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:17:10,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,396 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-11-02 20:17:10,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:10,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:17:10,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:17:10,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:17:10,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:17:10,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:17:10,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:17:10,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:17:10,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (1/1) ... [2022-11-02 20:17:10,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:10,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:10,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:10,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:17:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:17:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:17:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:17:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-02 20:17:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-02 20:17:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:17:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:17:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-02 20:17:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-02 20:17:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:17:10,698 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:17:10,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:17:11,087 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:17:11,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:17:11,094 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:17:11,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:11 BoogieIcfgContainer [2022-11-02 20:17:11,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:17:11,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:17:11,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:17:11,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:17:11,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:17:09" (1/3) ... [2022-11-02 20:17:11,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbe918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:11, skipping insertion in model container [2022-11-02 20:17:11,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:10" (2/3) ... [2022-11-02 20:17:11,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbe918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:11, skipping insertion in model container [2022-11-02 20:17:11,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:11" (3/3) ... [2022-11-02 20:17:11,111 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2022-11-02 20:17:11,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:17:11,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:17:11,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:17:11,228 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=PETRI_NET, 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;@57ca160f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:17:11,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:17:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:17:11,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:17:11,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:11,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:11,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2022-11-02 20:17:11,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:17:11,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341103274] [2022-11-02 20:17:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:11,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:17:11,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:17:11,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:17:11,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:17:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:11,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:17:11,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:11,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:11,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:11,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341103274] [2022-11-02 20:17:11,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341103274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:11,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:11,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:17:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532732896] [2022-11-02 20:17:11,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:11,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:17:11,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:17:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:17:11,522 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-02 20:17:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:11,549 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2022-11-02 20:17:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:17:11,551 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 [2022-11-02 20:17:11,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:11,562 INFO L225 Difference]: With dead ends: 48 [2022-11-02 20:17:11,562 INFO L226 Difference]: Without dead ends: 22 [2022-11-02 20:17:11,565 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 [2022-11-02 20:17:11,569 INFO L413 NwaCegarLoop]: 30 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, 30 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 [2022-11-02 20:17:11,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:17:11,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-02 20:17:11,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-02 20:17:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2022-11-02 20:17:11,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-02 20:17:11,604 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2022-11-02 20:17:11,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:11,605 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-02 20:17:11,605 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) [2022-11-02 20:17:11,606 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-02 20:17:11,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:17:11,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:11,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:11,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:11,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:17:11,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:11,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2022-11-02 20:17:11,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:17:11,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757567429] [2022-11-02 20:17:11,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:11,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:17:11,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:17:11,828 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:17:11,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:17:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:11,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:17:11,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:12,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:12,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:12,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757567429] [2022-11-02 20:17:12,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757567429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:12,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:12,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:12,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108897780] [2022-11-02 20:17:12,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:12,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:17:12,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:12,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:17:12,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:17:12,145 INFO L87 Difference]: Start difference. First operand 22 states and 27 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) [2022-11-02 20:17:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:12,261 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-02 20:17:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:17:12,263 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 [2022-11-02 20:17:12,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:12,263 INFO L225 Difference]: With dead ends: 31 [2022-11-02 20:17:12,264 INFO L226 Difference]: Without dead ends: 21 [2022-11-02 20:17:12,264 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 [2022-11-02 20:17:12,266 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:12,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 8 Unchecked, 0.1s Time] [2022-11-02 20:17:12,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-02 20:17:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-02 20:17:12,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 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) [2022-11-02 20:17:12,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-02 20:17:12,273 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2022-11-02 20:17:12,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:12,273 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-02 20:17:12,273 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) [2022-11-02 20:17:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-02 20:17:12,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-02 20:17:12,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:12,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:12,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:12,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:17:12,484 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:12,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:12,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1636973854, now seen corresponding path program 1 times [2022-11-02 20:17:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:17:12,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135146062] [2022-11-02 20:17:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:12,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:17:12,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:17:12,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:17:12,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:17:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:12,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:17:12,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:12,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:12,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135146062] [2022-11-02 20:17:12,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135146062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:12,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:12,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:12,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239750038] [2022-11-02 20:17:12,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:12,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:17:12,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:17:12,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:17:12,696 INFO L87 Difference]: Start difference. First operand 21 states and 24 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) [2022-11-02 20:17:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:12,794 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-02 20:17:12,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:12,795 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 [2022-11-02 20:17:12,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:12,796 INFO L225 Difference]: With dead ends: 33 [2022-11-02 20:17:12,796 INFO L226 Difference]: Without dead ends: 20 [2022-11-02 20:17:12,796 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 [2022-11-02 20:17:12,798 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:12,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2022-11-02 20:17:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-02 20:17:12,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 20:17:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 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) [2022-11-02 20:17:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-02 20:17:12,804 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2022-11-02 20:17:12,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:12,804 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-02 20:17:12,805 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) [2022-11-02 20:17:12,805 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-02 20:17:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:17:12,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:12,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:12,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-02 20:17:13,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:17:13,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:13,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:13,023 INFO L85 PathProgramCache]: Analyzing trace with hash 812441883, now seen corresponding path program 1 times [2022-11-02 20:17:13,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:17:13,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332775536] [2022-11-02 20:17:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:13,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:17:13,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:17:13,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:17:13,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:17:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:13,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:17:13,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:13,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:13,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:13,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332775536] [2022-11-02 20:17:13,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332775536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:13,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:13,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:13,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12766057] [2022-11-02 20:17:13,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:13,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:17:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:17:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:17:13,295 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:17:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:13,364 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-11-02 20:17:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:13,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 [2022-11-02 20:17:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:13,366 INFO L225 Difference]: With dead ends: 32 [2022-11-02 20:17:13,366 INFO L226 Difference]: Without dead ends: 20 [2022-11-02 20:17:13,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:17:13,368 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 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 [2022-11-02 20:17:13,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-11-02 20:17:13,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-02 20:17:13,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 20:17:13,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-11-02 20:17:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-02 20:17:13,373 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 15 [2022-11-02 20:17:13,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:13,373 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-02 20:17:13,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:17:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-02 20:17:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:17:13,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:13,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:13,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:13,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:17:13,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:13,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:13,577 INFO L85 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2022-11-02 20:17:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:17:13,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330337290] [2022-11-02 20:17:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:13,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:17:13,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:17:13,581 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:17:13,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:17:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:13,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:17:13,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:13,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:13,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:13,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330337290] [2022-11-02 20:17:13,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330337290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:13,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:13,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:17:13,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262053440] [2022-11-02 20:17:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:13,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:13,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:13,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:13,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:13,771 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2022-11-02 20:17:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:13,783 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2022-11-02 20:17:13,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:13,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 [2022-11-02 20:17:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:13,784 INFO L225 Difference]: With dead ends: 23 [2022-11-02 20:17:13,785 INFO L226 Difference]: Without dead ends: 20 [2022-11-02 20:17:13,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:13,786 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:13,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2022-11-02 20:17:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-02 20:17:13,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 20:17:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 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) [2022-11-02 20:17:13,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2022-11-02 20:17:13,792 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2022-11-02 20:17:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:13,792 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2022-11-02 20:17:13,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2022-11-02 20:17:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2022-11-02 20:17:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:17:13,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:13,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:13,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:14,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:17:14,014 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:14,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:14,015 INFO L85 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2022-11-02 20:17:14,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:17:14,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15461297] [2022-11-02 20:17:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:14,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:17:14,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:17:14,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:17:14,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:17:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:14,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-02 20:17:14,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:14,228 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 [2022-11-02 20:17:14,423 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-02 20:17:14,424 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 [2022-11-02 20:17:14,760 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:17:14,761 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 [2022-11-02 20:17:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:14,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:14,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:14,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15461297] [2022-11-02 20:17:14,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15461297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:14,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:14,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:17:14,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646225395] [2022-11-02 20:17:14,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:14,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:17:14,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:14,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:17:14,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:17:14,976 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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) [2022-11-02 20:17:15,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:15,099 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2022-11-02 20:17:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:15,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 19 [2022-11-02 20:17:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:15,100 INFO L225 Difference]: With dead ends: 20 [2022-11-02 20:17:15,100 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:17:15,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:15,101 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:15,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2022-11-02 20:17:15,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:17:15,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:17:15,103 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) [2022-11-02 20:17:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:17:15,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-11-02 20:17:15,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:15,103 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:17:15,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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) [2022-11-02 20:17:15,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:17:15,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:17:15,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:17:15,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:15,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:17:15,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 20:17:15,377 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 48) no Hoare annotation was computed. [2022-11-02 20:17:15,377 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2022-11-02 20:17:15,378 INFO L895 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (let ((.cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (and (= .cse0 (fp.neg (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13|) (_ bv0 32)) .cse1) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|))))) |ULTIMATE.start_main_#t~short9#1|) [2022-11-02 20:17:15,378 INFO L899 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2022-11-02 20:17:15,379 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2022-11-02 20:17:15,379 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_round_float_~x#1|) [2022-11-02 20:17:15,379 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2022-11-02 20:17:15,379 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2022-11-02 20:17:15,379 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2022-11-02 20:17:15,380 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 20:17:15,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 20:17:15,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 20:17:15,380 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 41) no Hoare annotation was computed. [2022-11-02 20:17:15,381 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2022-11-02 20:17:15,381 INFO L902 garLoopResultBuilder]: At program point L86(lines 69 87) the Hoare annotation is: true [2022-11-02 20:17:15,381 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-11-02 20:17:15,381 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2022-11-02 20:17:15,383 INFO L895 garLoopResultBuilder]: At program point L49-1(lines 14 55) the Hoare annotation is: (exists ((|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13|) (_ bv0 32)))) (and (= .cse0 |ULTIMATE.start_round_float_~w~0#1|) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp.neg (_ +zero 8 24)))))) [2022-11-02 20:17:15,384 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2022-11-02 20:17:15,384 INFO L895 garLoopResultBuilder]: At program point L66(lines 57 67) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) |ULTIMATE.start_main_#t~short9#1|) [2022-11-02 20:17:15,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 20:17:15,384 INFO L895 garLoopResultBuilder]: At program point L54(lines 14 55) the Hoare annotation is: (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (let ((.cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (and (= .cse0 (fp.neg (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13|) (_ bv0 32)) .cse1) (= .cse0 |ULTIMATE.start_round_float_#res#1|))))) [2022-11-02 20:17:15,385 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2022-11-02 20:17:15,390 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2022-11-02 20:17:15,390 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2022-11-02 20:17:15,394 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 20:17:15,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:17:15,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,415 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,428 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,431 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,431 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,434 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,434 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,434 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,438 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,438 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,438 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,459 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:17:15 BoogieIcfgContainer [2022-11-02 20:17:15,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:17:15,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:17:15,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:17:15,461 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:17:15,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:11" (3/4) ... [2022-11-02 20:17:15,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:17:15,478 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-02 20:17:15,479 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-02 20:17:15,479 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:17:15,479 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:17:15,512 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result) [2022-11-02 20:17:15,513 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == w && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) [2022-11-02 20:17:15,515 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2022-11-02 20:17:15,517 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 1bv32 && aux-res == -0.0f && __signbit_float(res) == 1-aux [2022-11-02 20:17:15,536 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:17:15,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:17:15,537 INFO L158 Benchmark]: Toolchain (without parser) took 5707.98ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 64.0MB in the beginning and 92.2MB in the end (delta: -28.3MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2022-11-02 20:17:15,537 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 52.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:15,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.25ms. Allocated memory is still 83.9MB. Free memory was 63.8MB in the beginning and 66.5MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:17:15,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.13ms. Allocated memory is still 83.9MB. Free memory was 66.3MB in the beginning and 64.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:15,539 INFO L158 Benchmark]: Boogie Preprocessor took 61.97ms. Allocated memory is still 83.9MB. Free memory was 64.6MB in the beginning and 63.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:15,539 INFO L158 Benchmark]: RCFGBuilder took 635.79ms. Allocated memory is still 83.9MB. Free memory was 63.1MB in the beginning and 49.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 20:17:15,540 INFO L158 Benchmark]: TraceAbstraction took 4360.73ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 49.2MB in the beginning and 95.2MB in the end (delta: -46.0MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-02 20:17:15,541 INFO L158 Benchmark]: Witness Printer took 75.29ms. Allocated memory is still 113.2MB. Free memory was 95.2MB in the beginning and 92.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:15,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 52.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.25ms. Allocated memory is still 83.9MB. Free memory was 63.8MB in the beginning and 66.5MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.13ms. Allocated memory is still 83.9MB. Free memory was 66.3MB in the beginning and 64.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.97ms. Allocated memory is still 83.9MB. Free memory was 64.6MB in the beginning and 63.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 635.79ms. Allocated memory is still 83.9MB. Free memory was 63.1MB in the beginning and 49.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4360.73ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 49.2MB in the beginning and 95.2MB in the end (delta: -46.0MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Witness Printer took 75.29ms. Allocated memory is still 113.2MB. Free memory was 95.2MB in the beginning and 92.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 57 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 105 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 155 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 76 ConstructedInterpolants, 24 QuantifiedInterpolants, 826 SizeOfPredicates, 36 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 19]: Loop Invariant Derived loop invariant: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 14]: Loop Invariant [2022-11-02 20:17:15,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,586 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,586 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,586 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2022-11-02 20:17:15,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == w && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \result == 1bv32 && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 60]: Loop Invariant [2022-11-02 20:17:15,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2022-11-02 20:17:15,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,607 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-11-02 20:17:15,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux RESULT: Ultimate proved your program to be correct! [2022-11-02 20:17:15,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b5a95d-130d-4dfd-83c2-dd64ecdd1c92/bin/uautomizer-Dbtcem3rbc/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