./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0a18ef05fc68655f6745bf4a502e0079c3ee8f2ad8ce0a20fedaec28a3ae221 --- 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-b5237d8 [2022-11-22 01:29:01,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:29:01,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:29:01,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:29:01,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:29:01,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:29:01,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:29:01,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:29:01,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:29:01,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:29:01,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:29:01,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:29:01,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:29:01,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:29:01,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:29:01,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:29:01,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:29:01,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:29:01,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:29:01,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:29:01,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:29:01,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:29:01,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:29:01,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:29:01,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:29:01,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:29:01,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:29:01,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:29:01,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:29:01,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:29:01,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:29:01,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:29:01,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:29:01,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:29:01,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:29:01,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:29:01,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:29:01,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:29:01,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:29:01,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:29:01,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:29:01,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:29:01,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:29:01,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:29:01,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:29:01,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:29:01,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:29:01,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:29:01,747 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:29:01,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:29:01,748 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:29:01,748 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:29:01,749 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:29:01,749 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:29:01,749 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:29:01,750 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:29:01,750 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:29:01,750 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:29:01,750 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:29:01,750 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:29:01,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:29:01,751 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:29:01,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:29:01,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:29:01,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:29:01,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:29:01,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:29:01,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:29:01,753 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:29:01,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:29:01,754 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:29:01,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:29:01,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:29:01,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:29:01,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:29:01,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:29:01,755 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:29:01,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:29:01,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:29:01,756 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:29:01,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:29:01,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:29:01,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:29:01,757 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_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a18ef05fc68655f6745bf4a502e0079c3ee8f2ad8ce0a20fedaec28a3ae221 [2022-11-22 01:29:02,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:29:02,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:29:02,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:29:02,048 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:29:02,048 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:29:02,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c [2022-11-22 01:29:05,171 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:29:05,446 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:29:05,447 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c [2022-11-22 01:29:05,454 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data/6d7b3ce29/2994eda344594422bcca27a4d9b050c8/FLAG188c3fae8 [2022-11-22 01:29:05,474 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data/6d7b3ce29/2994eda344594422bcca27a4d9b050c8 [2022-11-22 01:29:05,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:29:05,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:29:05,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:29:05,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:29:05,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:29:05,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55844aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05, skipping insertion in model container [2022-11-22 01:29:05,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:29:05,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:29:05,687 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c[855,868] [2022-11-22 01:29:05,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:29:05,741 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:29:05,752 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c[855,868] [2022-11-22 01:29:05,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:29:05,777 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:29:05,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05 WrapperNode [2022-11-22 01:29:05,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:29:05,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:29:05,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:29:05,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:29:05,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,822 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2022-11-22 01:29:05,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:29:05,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:29:05,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:29:05,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:29:05,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,841 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:29:05,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:29:05,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:29:05,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:29:05,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (1/1) ... [2022-11-22 01:29:05,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:29:05,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:05,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:29:05,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:29:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:29:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:29:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:29:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:29:06,019 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:29:06,021 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:29:06,199 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:29:06,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:29:06,252 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:29:06,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:06 BoogieIcfgContainer [2022-11-22 01:29:06,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:29:06,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:29:06,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:29:06,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:29:06,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:29:05" (1/3) ... [2022-11-22 01:29:06,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bd1d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:29:06, skipping insertion in model container [2022-11-22 01:29:06,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:05" (2/3) ... [2022-11-22 01:29:06,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bd1d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:29:06, skipping insertion in model container [2022-11-22 01:29:06,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:06" (3/3) ... [2022-11-22 01:29:06,265 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant.c [2022-11-22 01:29:06,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:29:06,285 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:29:06,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:29:06,335 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@975208a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:29:06,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:29:06,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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) [2022-11-22 01:29:06,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:29:06,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:06,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:29:06,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:06,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:06,352 INFO L85 PathProgramCache]: Analyzing trace with hash 88968804, now seen corresponding path program 1 times [2022-11-22 01:29:06,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:06,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116023924] [2022-11-22 01:29:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:06,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:29:06,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:29:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:29:06,519 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:29:06,521 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:29:06,522 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:29:06,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:29:06,529 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:29:06,534 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:29:06,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:29:06 BoogieIcfgContainer [2022-11-22 01:29:06,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:29:06,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:29:06,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:29:06,557 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:29:06,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:06" (3/4) ... [2022-11-22 01:29:06,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:29:06,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:29:06,569 INFO L158 Benchmark]: Toolchain (without parser) took 1089.44ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 65.4MB in the end (delta: 42.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-22 01:29:06,570 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 153.1MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:29:06,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.05ms. Allocated memory is still 153.1MB. Free memory was 107.7MB in the beginning and 96.8MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:29:06,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.76ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:29:06,573 INFO L158 Benchmark]: Boogie Preprocessor took 21.01ms. Allocated memory is still 153.1MB. Free memory was 95.2MB in the beginning and 94.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:29:06,574 INFO L158 Benchmark]: RCFGBuilder took 410.31ms. Allocated memory is still 153.1MB. Free memory was 94.0MB in the beginning and 80.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:29:06,575 INFO L158 Benchmark]: TraceAbstraction took 298.55ms. Allocated memory is still 153.1MB. Free memory was 80.1MB in the beginning and 65.8MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:29:06,577 INFO L158 Benchmark]: Witness Printer took 11.41ms. Allocated memory is still 153.1MB. Free memory was 65.8MB in the beginning and 65.4MB in the end (delta: 371.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:29:06,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 153.1MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.05ms. Allocated memory is still 153.1MB. Free memory was 107.7MB in the beginning and 96.8MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.76ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.01ms. Allocated memory is still 153.1MB. Free memory was 95.2MB in the beginning and 94.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.31ms. Allocated memory is still 153.1MB. Free memory was 94.0MB in the beginning and 80.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 298.55ms. Allocated memory is still 153.1MB. Free memory was 80.1MB in the beginning and 65.8MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 11.41ms. Allocated memory is still 153.1MB. Free memory was 65.8MB in the beginning and 65.4MB in the end (delta: 371.0kB). Peak memory consumption was 2.1MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of someUnaryDOUBLEoperation at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 59. Possible FailurePath: [L22] double _EPS = 1e-6; [L49] double d, dd, r; [L50] double epsilon = 1e-8; [L52] d = 1. VAL [_EPS=1/1000000, d=1, epsilon=1/100000000] [L52] COND TRUE d <= 20. [L54] dd = __VERIFIER_nondet_double() [L55] CALL assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L18] COND FALSE !(!cond) [L55] RET assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L57] CALL, EXPR SqrtR(dd) [L26] double xn, xnp1, residu, lsup, linf; [L27] int i, cond; [L28] COND FALSE !(Input <= 1.0) [L28] xn = 1.0/Input [L29] xnp1 = xn [L30] residu = 2.0*_EPS*(xn+xnp1) [L31] lsup = _EPS * (xn+xnp1) [L32] linf = -lsup [L33] cond = ((residu > lsup) || (residu < linf)) [L34] i = 0 VAL [\old(Input)=54, _EPS=1/1000000, cond=0, i=0, Input=54, xn=1, xn=1] [L35] COND FALSE !(\read(cond)) [L44] return 1.0 / xnp1; [L57] RET, EXPR SqrtR(dd) [L57] r = SqrtR(dd) [L59] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) [L20] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L20] reach_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:29:06,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0a18ef05fc68655f6745bf4a502e0079c3ee8f2ad8ce0a20fedaec28a3ae221 --- 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-b5237d8 [2022-11-22 01:29:09,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:29:09,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:29:09,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:29:09,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:29:09,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:29:09,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:29:09,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:29:09,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:29:09,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:29:09,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:29:09,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:29:09,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:29:09,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:29:09,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:29:09,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:29:09,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:29:09,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:29:09,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:29:09,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:29:09,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:29:09,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:29:09,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:29:09,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:29:09,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:29:09,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:29:09,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:29:09,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:29:09,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:29:09,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:29:09,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:29:09,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:29:09,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:29:09,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:29:09,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:29:09,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:29:09,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:29:09,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:29:09,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:29:09,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:29:09,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:29:09,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 01:29:09,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:29:09,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:29:09,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:29:09,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:29:09,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:29:09,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:29:09,315 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:29:09,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:29:09,315 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:29:09,316 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:29:09,317 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:29:09,317 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:29:09,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:29:09,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:29:09,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:29:09,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:29:09,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:29:09,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:29:09,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:29:09,320 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:29:09,320 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:29:09,320 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:29:09,320 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:29:09,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:29:09,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:29:09,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:29:09,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:29:09,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:29:09,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:29:09,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:29:09,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:29:09,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:29:09,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:29:09,324 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:29:09,324 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:29:09,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:29:09,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:29:09,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:29:09,325 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_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a18ef05fc68655f6745bf4a502e0079c3ee8f2ad8ce0a20fedaec28a3ae221 [2022-11-22 01:29:09,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:29:09,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:29:09,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:29:09,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:29:09,734 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:29:09,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c [2022-11-22 01:29:12,741 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:29:12,944 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:29:12,945 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c [2022-11-22 01:29:12,952 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data/acfc9c1e5/a12973df30ad4d83832e989fb1682a30/FLAG8087502f8 [2022-11-22 01:29:12,974 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/data/acfc9c1e5/a12973df30ad4d83832e989fb1682a30 [2022-11-22 01:29:12,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:29:12,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:29:12,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:29:12,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:29:12,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:29:12,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:29:12" (1/1) ... [2022-11-22 01:29:12,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2bde74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:12, skipping insertion in model container [2022-11-22 01:29:12,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:29:12" (1/1) ... [2022-11-22 01:29:12,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:29:13,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:29:13,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c[855,868] [2022-11-22 01:29:13,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:29:13,265 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:29:13,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant.c[855,868] [2022-11-22 01:29:13,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:29:13,327 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:29:13,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13 WrapperNode [2022-11-22 01:29:13,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:29:13,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:29:13,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:29:13,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:29:13,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,389 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-11-22 01:29:13,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:29:13,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:29:13,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:29:13,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:29:13,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,436 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:29:13,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:29:13,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:29:13,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:29:13,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (1/1) ... [2022-11-22 01:29:13,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:29:13,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:13,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:29:13,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:29:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:29:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:29:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:29:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:29:13,629 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:29:13,631 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:29:23,140 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:29:23,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:29:23,147 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:29:23,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:23 BoogieIcfgContainer [2022-11-22 01:29:23,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:29:23,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:29:23,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:29:23,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:29:23,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:29:12" (1/3) ... [2022-11-22 01:29:23,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464568cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:29:23, skipping insertion in model container [2022-11-22 01:29:23,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:13" (2/3) ... [2022-11-22 01:29:23,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464568cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:29:23, skipping insertion in model container [2022-11-22 01:29:23,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:23" (3/3) ... [2022-11-22 01:29:23,159 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant.c [2022-11-22 01:29:23,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:29:23,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:29:23,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:29:23,253 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c271ccc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:29:23,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:29:23,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:29:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:29:23,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:23,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:23,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:23,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1569195288, now seen corresponding path program 1 times [2022-11-22 01:29:23,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:29:23,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899070454] [2022-11-22 01:29:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:23,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:29:23,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:29:23,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:29:23,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:29:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:25,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 01:29:25,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:29:25,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:25,082 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:29:25,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899070454] [2022-11-22 01:29:25,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899070454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:25,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:25,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:29:25,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812229983] [2022-11-22 01:29:25,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:25,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:29:25,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:29:25,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:29:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:29:25,134 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2022-11-22 01:29:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:25,151 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2022-11-22 01:29:25,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:29:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2022-11-22 01:29:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:25,163 INFO L225 Difference]: With dead ends: 36 [2022-11-22 01:29:25,163 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 01:29:25,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:29:25,170 INFO L413 NwaCegarLoop]: 21 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, 21 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 [2022-11-22 01:29:25,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:29:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 01:29:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 01:29:25,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:29:25,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-22 01:29:25,211 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-22 01:29:25,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:25,212 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-22 01:29:25,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2022-11-22 01:29:25,213 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-22 01:29:25,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:29:25,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:25,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:25,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:25,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:29:25,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:25,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:25,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2049407722, now seen corresponding path program 1 times [2022-11-22 01:29:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:29:25,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107538247] [2022-11-22 01:29:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:25,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:29:25,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:29:25,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:29:25,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:29:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:27,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:29:27,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:29:27,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:27,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:29:27,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107538247] [2022-11-22 01:29:27,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107538247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:27,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:27,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:29:27,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489492127] [2022-11-22 01:29:27,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:27,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:27,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:29:27,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:27,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:27,980 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2022-11-22 01:29:29,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:32,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:35,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:38,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:40,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:44,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:44,395 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-22 01:29:44,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:29:44,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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 [2022-11-22 01:29:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:44,591 INFO L225 Difference]: With dead ends: 35 [2022-11-22 01:29:44,591 INFO L226 Difference]: Without dead ends: 22 [2022-11-22 01:29:44,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:44,593 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:44,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 33 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 16.4s Time] [2022-11-22 01:29:44,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-22 01:29:44,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-11-22 01:29:44,598 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) [2022-11-22 01:29:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-22 01:29:44,600 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 12 [2022-11-22 01:29:44,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:44,600 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-22 01:29:44,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2022-11-22 01:29:44,601 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-22 01:29:44,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:29:44,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:44,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:44,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:44,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:29:44,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash -274400360, now seen corresponding path program 1 times [2022-11-22 01:29:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:29:44,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260991193] [2022-11-22 01:29:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:44,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:29:44,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:29:44,805 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:29:44,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 01:29:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:48,243 WARN L261 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 01:29:48,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:04,562 WARN L837 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)) c_~_EPS~0) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= |c_ULTIMATE.start_SqrtR_~xn~0#1| (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-22 01:30:14,705 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:30:19,741 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:30:29,590 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:30:39,722 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:30:44,818 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:30:49,828 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:30:54,832 WARN L233 SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:30:59,876 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:18,714 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:23,771 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:28,820 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:33,868 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:37,207 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse3 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (.cse2 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse6))) (or (and (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)) |ULTIMATE.start_SqrtR_~linf~0#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3)))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse4 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse4 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (let ((.cse5 (fp.add c_currentRoundingMode .cse4 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (fp.gt (fp.mul c_currentRoundingMode .cse2 .cse5) (fp.mul c_currentRoundingMode .cse6 .cse5))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3))))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv1 32))) (and (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse9 (fp.add c_currentRoundingMode .cse7 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (let ((.cse8 (fp.mul c_currentRoundingMode .cse2 .cse9))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse7 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (not (fp.gt .cse8 (fp.mul c_currentRoundingMode .cse6 .cse9))) (not (fp.lt .cse8 |ULTIMATE.start_SqrtR_~linf~0#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3)))))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-22 01:31:39,361 WARN L859 $PredicateComparison]: unable to prove that (and (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse3 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (.cse2 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse6))) (or (and (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)) |ULTIMATE.start_SqrtR_~linf~0#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3)))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse4 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse4 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (let ((.cse5 (fp.add c_currentRoundingMode .cse4 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (fp.gt (fp.mul c_currentRoundingMode .cse2 .cse5) (fp.mul c_currentRoundingMode .cse6 .cse5))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3))))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv1 32))) (and (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse9 (fp.add c_currentRoundingMode .cse7 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (let ((.cse8 (fp.mul c_currentRoundingMode .cse2 .cse9))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse7 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (not (fp.gt .cse8 (fp.mul c_currentRoundingMode .cse6 .cse9))) (not (fp.lt .cse8 |ULTIMATE.start_SqrtR_~linf~0#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3)))))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-11-22 01:31:44,462 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:49,518 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:54,550 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:31:59,576 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:04,608 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:06,897 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (not (fp.gt .cse2 (fp.mul c_currentRoundingMode .cse3 .cse4))) (not (fp.lt .cse2 |ULTIMATE.start_SqrtR_~linf~0#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-22 01:32:12,603 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:18,727 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:24,678 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:30,843 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:36,802 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:39,285 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse2 .cse2))) (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (not (fp.lt .cse1 |ULTIMATE.start_SqrtR_~linf~0#1|)) (= (fp.div c_currentRoundingMode .cse0 .cse2) |c_ULTIMATE.start_SqrtR_#res#1|) (not (fp.gt .cse1 (fp.mul c_currentRoundingMode .cse3 .cse4))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-22 01:32:50,191 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:32:55,677 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:01,654 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:07,603 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:13,501 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:21,887 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:27,844 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:33,277 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:39,236 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:45,169 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:53,573 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:33:59,514 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:05,417 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:11,320 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:17,264 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:23,188 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:26,188 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse11 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (.cse3 (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0))) (.cse7 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse1))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven .cse7 .cse2))) (and (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse1 .cse2))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3) (not (fp.geq (fp.div roundNearestTiesToEven .cse4 .cse5) .cse6)) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4)) (not (fp.lt .cse0 |ULTIMATE.start_SqrtR_~linf~0#1|))))))) (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse10 (fp.div roundNearestTiesToEven .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse9 (fp.add roundNearestTiesToEven .cse10 .cse10))) (let ((.cse8 (fp.mul roundNearestTiesToEven .cse7 .cse9))) (and (not (fp.gt .cse8 (fp.mul roundNearestTiesToEven .cse1 .cse9))) (not (fp.leq (fp.div roundNearestTiesToEven .cse4 .cse10) .cse11)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4)) (not (fp.lt .cse8 |ULTIMATE.start_SqrtR_~linf~0#1|))))))))) (and (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse15 (fp.div roundNearestTiesToEven .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse13 (fp.add roundNearestTiesToEven .cse15 .cse15))) (let ((.cse14 (fp.div roundNearestTiesToEven .cse4 .cse15)) (.cse12 (fp.mul roundNearestTiesToEven .cse7 .cse13))) (and (not (fp.gt .cse12 (fp.mul roundNearestTiesToEven .cse1 .cse13))) (fp.leq .cse14 .cse11) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4)) (fp.geq .cse14 .cse6) (not (fp.lt .cse12 |ULTIMATE.start_SqrtR_~linf~0#1|))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)))))) is different from false [2022-11-22 01:34:34,740 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:40,802 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:46,310 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:34:47,843 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-22 01:34:47,845 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:34:47,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260991193] [2022-11-22 01:34:47,846 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2022-11-22 01:34:47,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1471776578] [2022-11-22 01:34:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:47,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:34:47,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:34:47,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-22 01:34:47,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:34:47,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-22 01:34:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:52,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:34:52,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:52,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2022-11-22 01:34:52,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866727044] [2022-11-22 01:34:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:52,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:34:52,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:52,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:34:52,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:37:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:22,442 WARN L261 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:37:22,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:37:22,445 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2022-11-22 01:37:22,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:22,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2022-11-22 01:37:22,446 ERROR L170 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2022-11-22 01:37:22,446 INFO L359 BasicCegarLoop]: Counterexample might be feasible [2022-11-22 01:37:22,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:37:22,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:37:22,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:37:23,067 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2022-11-22 01:37:23,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2022-11-22 01:37:23,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c07ec4-d72b-47db-b6bf-d49416a3b534/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:37:23,141 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 01:37:23,144 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:37:23,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:37:23 BoogieIcfgContainer [2022-11-22 01:37:23,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:37:23,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:37:23,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:37:23,159 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:37:23,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:23" (3/4) ... [2022-11-22 01:37:23,163 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:37:23,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:37:23,165 INFO L158 Benchmark]: Toolchain (without parser) took 490186.57ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 46.7MB in the beginning and 42.9MB in the end (delta: 3.7MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2022-11-22 01:37:23,165 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:23,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.70ms. Allocated memory is still 67.1MB. Free memory was 46.5MB in the beginning and 35.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:37:23,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.53ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:23,166 INFO L158 Benchmark]: Boogie Preprocessor took 57.86ms. Allocated memory is still 67.1MB. Free memory was 33.5MB in the beginning and 31.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:37:23,167 INFO L158 Benchmark]: RCFGBuilder took 9700.28ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 31.9MB in the beginning and 73.1MB in the end (delta: -41.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-22 01:37:23,167 INFO L158 Benchmark]: TraceAbstraction took 480006.34ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 43.6MB in the end (delta: 28.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-11-22 01:37:23,168 INFO L158 Benchmark]: Witness Printer took 5.49ms. Allocated memory is still 98.6MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:23,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.70ms. Allocated memory is still 67.1MB. Free memory was 46.5MB in the beginning and 35.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.53ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.86ms. Allocated memory is still 67.1MB. Free memory was 33.5MB in the beginning and 31.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9700.28ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 31.9MB in the beginning and 73.1MB in the end (delta: -41.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * TraceAbstraction took 480006.34ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 43.6MB in the end (delta: 28.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 5.49ms. Allocated memory is still 98.6MB. Free memory is still 42.9MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L22] double _EPS = 1e-6; [L49] double d, dd, r; [L50] double epsilon = 1e-8; [L52] d = 1. [L52] COND TRUE d <= 20. [L54] dd = __VERIFIER_nondet_double() [L55] CALL assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L18] COND FALSE !(!cond) [L55] RET assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L57] CALL, EXPR SqrtR(dd) [L26] double xn, xnp1, residu, lsup, linf; [L27] int i, cond; [L28] COND FALSE !(Input <= 1.0) [L28] xn = 1.0/Input [L29] xnp1 = xn [L30] residu = 2.0*_EPS*(xn+xnp1) [L31] lsup = _EPS * (xn+xnp1) [L32] linf = -lsup [L33] cond = ((residu > lsup) || (residu < linf)) [L34] i = 0 [L35] COND FALSE !(\read(cond)) [L44] return 1.0 / xnp1; [L57] RET, EXPR SqrtR(dd) [L57] r = SqrtR(dd) [L59] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) [L20] COND TRUE !(cond) [L20] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 479.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 16.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 15.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 6.5s SatisfiabilityAnalysisTime, 300.7s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 7 NumberOfNonLiveVariables, 120 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN