./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:59:24,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:59:24,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:59:24,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:59:24,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:59:24,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:59:24,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:59:24,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:59:24,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:59:24,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:59:24,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:59:24,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:59:24,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:59:24,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:59:24,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:59:24,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:59:24,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:59:24,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:59:24,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:59:24,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:59:24,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:59:24,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:59:24,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:59:24,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:59:24,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:59:24,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:59:24,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:59:24,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:59:24,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:59:24,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:59:24,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:59:24,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:59:24,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:59:24,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:59:24,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:59:24,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:59:24,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:59:24,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:59:24,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:59:24,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:59:24,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:59:24,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:59:24,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:59:24,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:59:24,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:59:24,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:59:24,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:59:24,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:59:24,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:59:24,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:59:24,841 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:59:24,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:59:24,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:59:24,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:59:24,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:59:24,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:59:24,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:59:24,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:59:24,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:59:24,846 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:59:24,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:59:24,846 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:59:24,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:59:24,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:59:24,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:59:24,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:59:24,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:59:24,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:59:24,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:59:24,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:59:24,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:59:24,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:59:24,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:59:24,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:59:24,848 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:59:24,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:59:24,848 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:59:24,848 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 [2022-12-13 14:59:25,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:59:25,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:59:25,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:59:25,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:59:25,035 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:59:25,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-12-13 14:59:27,625 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:59:27,760 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:59:27,761 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-12-13 14:59:27,765 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data/0a816d23f/afb6d2d1ddaa4608b41e556a7f63bf4d/FLAG0e7e0acac [2022-12-13 14:59:27,776 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data/0a816d23f/afb6d2d1ddaa4608b41e556a7f63bf4d [2022-12-13 14:59:27,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:59:27,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:59:27,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:59:27,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:59:27,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:59:27,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:27,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5bf394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27, skipping insertion in model container [2022-12-13 14:59:27,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:27,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:59:27,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:59:27,931 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_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1722,1735] [2022-12-13 14:59:27,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:59:27,942 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:59:27,955 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_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1722,1735] [2022-12-13 14:59:27,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:59:27,968 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:59:27,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27 WrapperNode [2022-12-13 14:59:27,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:59:27,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:59:27,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:59:27,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:59:27,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:27,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:27,999 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-12-13 14:59:27,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:59:28,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:59:28,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:59:28,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:59:28,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,016 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:59:28,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:59:28,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:59:28,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:59:28,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (1/1) ... [2022-12-13 14:59:28,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:59:28,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:28,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:59:28,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:59:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:59:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:59:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:59:28,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:59:28,140 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:59:28,141 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:59:28,200 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:59:28,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:59:28,205 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:59:28,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:28 BoogieIcfgContainer [2022-12-13 14:59:28,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:59:28,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:59:28,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:59:28,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:59:28,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:59:27" (1/3) ... [2022-12-13 14:59:28,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6153ebf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:59:28, skipping insertion in model container [2022-12-13 14:59:28,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:27" (2/3) ... [2022-12-13 14:59:28,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6153ebf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:59:28, skipping insertion in model container [2022-12-13 14:59:28,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:28" (3/3) ... [2022-12-13 14:59:28,212 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4.i [2022-12-13 14:59:28,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:59:28,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:59:28,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:59:28,267 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c78f4bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:59:28,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:59:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 14:59:28,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:28,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:59:28,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-12-13 14:59:28,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:28,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723069266] [2022-12-13 14:59:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:28,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:28,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:59:28,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:28,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723069266] [2022-12-13 14:59:28,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723069266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:28,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:28,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:59:28,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980633039] [2022-12-13 14:59:28,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:28,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:59:28,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:59:28,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:59:28,413 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:28,423 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-12-13 14:59:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:59:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-13 14:59:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:28,430 INFO L225 Difference]: With dead ends: 23 [2022-12-13 14:59:28,430 INFO L226 Difference]: Without dead ends: 9 [2022-12-13 14:59:28,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:59:28,434 INFO L413 NwaCegarLoop]: 12 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, 12 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 [2022-12-13 14:59:28,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:59:28,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-13 14:59:28,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-13 14:59:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-12-13 14:59:28,457 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-12-13 14:59:28,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:28,458 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-12-13 14:59:28,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:28,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-12-13 14:59:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 14:59:28,458 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:28,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:59:28,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:59:28,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:28,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:28,460 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-12-13 14:59:28,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:28,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036702698] [2022-12-13 14:59:28,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:28,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:59:28,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:59:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:59:28,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:59:28,495 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:59:28,496 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 14:59:28,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:59:28,500 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:59:28,503 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:59:28,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:59:28 BoogieIcfgContainer [2022-12-13 14:59:28,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:59:28,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:59:28,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:59:28,517 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:59:28,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:28" (3/4) ... [2022-12-13 14:59:28,520 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:59:28,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:59:28,521 INFO L158 Benchmark]: Toolchain (without parser) took 742.02ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 66.3MB in the end (delta: 46.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-12-13 14:59:28,521 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:59:28,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.92ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 101.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 14:59:28,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.15ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 100.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:59:28,522 INFO L158 Benchmark]: Boogie Preprocessor took 18.81ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:59:28,522 INFO L158 Benchmark]: RCFGBuilder took 187.13ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 90.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 14:59:28,522 INFO L158 Benchmark]: TraceAbstraction took 309.05ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 66.7MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 14:59:28,523 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 142.6MB. Free memory was 66.7MB in the beginning and 66.3MB in the end (delta: 448.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:59:28,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.92ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 101.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.15ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 100.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.81ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 187.13ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 90.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 309.05ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 66.7MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 142.6MB. Free memory was 66.7MB in the beginning and 66.3MB in the end (delta: 448.6kB). 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: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=53, x=53] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53, x=53] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 14:59:28,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:59:30,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:59:30,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:59:30,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:59:30,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:59:30,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:59:30,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:59:30,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:59:30,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:59:30,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:59:30,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:59:30,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:59:30,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:59:30,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:59:30,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:59:30,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:59:30,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:59:30,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:59:30,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:59:30,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:59:30,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:59:30,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:59:30,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:59:30,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:59:30,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:59:30,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:59:30,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:59:30,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:59:30,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:59:30,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:59:30,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:59:30,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:59:30,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:59:30,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:59:30,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:59:30,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:59:30,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:59:30,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:59:30,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:59:30,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:59:30,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:59:30,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 14:59:30,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:59:30,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:59:30,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:59:30,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:59:30,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:59:30,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:59:30,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:59:30,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:59:30,203 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:59:30,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:59:30,203 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:59:30,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:59:30,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:59:30,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:59:30,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:59:30,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:59:30,204 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:59:30,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 14:59:30,204 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 14:59:30,204 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:59:30,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:59:30,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:59:30,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:59:30,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:59:30,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:59:30,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:59:30,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:59:30,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:59:30,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:59:30,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:59:30,206 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 14:59:30,206 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 14:59:30,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:59:30,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:59:30,207 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:59:30,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:59:30,207 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 14:59:30,207 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:59:30,207 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 [2022-12-13 14:59:30,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:59:30,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:59:30,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:59:30,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:59:30,443 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:59:30,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-12-13 14:59:32,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:59:33,066 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:59:33,067 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-12-13 14:59:33,073 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data/03fc5e351/f96742297c1b43c495c9443f7b662ddf/FLAG71f6bd4ec [2022-12-13 14:59:33,083 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/data/03fc5e351/f96742297c1b43c495c9443f7b662ddf [2022-12-13 14:59:33,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:59:33,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:59:33,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:59:33,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:59:33,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:59:33,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779d68e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33, skipping insertion in model container [2022-12-13 14:59:33,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:59:33,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:59:33,219 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_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1722,1735] [2022-12-13 14:59:33,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:59:33,232 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:59:33,245 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_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1722,1735] [2022-12-13 14:59:33,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:59:33,256 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:59:33,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33 WrapperNode [2022-12-13 14:59:33,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:59:33,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:59:33,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:59:33,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:59:33,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,282 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-12-13 14:59:33,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:59:33,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:59:33,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:59:33,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:59:33,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,307 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:59:33,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:59:33,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:59:33,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:59:33,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (1/1) ... [2022-12-13 14:59:33,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:59:33,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:33,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:59:33,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:59:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:59:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 14:59:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:59:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:59:33,449 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:59:33,450 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:59:40,213 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:59:40,218 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:59:40,218 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:59:40,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:40 BoogieIcfgContainer [2022-12-13 14:59:40,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:59:40,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:59:40,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:59:40,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:59:40,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:59:33" (1/3) ... [2022-12-13 14:59:40,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:59:40, skipping insertion in model container [2022-12-13 14:59:40,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:33" (2/3) ... [2022-12-13 14:59:40,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:59:40, skipping insertion in model container [2022-12-13 14:59:40,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:40" (3/3) ... [2022-12-13 14:59:40,227 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4.i [2022-12-13 14:59:40,241 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:59:40,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:59:40,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:59:40,278 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31843b62, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:59:40,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:59:40,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 14:59:40,285 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:40,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:59:40,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:40,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:40,289 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-12-13 14:59:40,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:59:40,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126209689] [2022-12-13 14:59:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:40,299 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 [2022-12-13 14:59:40,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:59:40,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 14:59:40,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 14:59:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:41,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 14:59:41,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:41,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:59:41,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:41,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:59:41,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126209689] [2022-12-13 14:59:41,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126209689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:41,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:41,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:59:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353424985] [2022-12-13 14:59:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:41,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:59:41,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:59:41,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:59:41,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:59:41,462 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:41,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:41,471 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-12-13 14:59:41,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:59:41,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-13 14:59:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:41,478 INFO L225 Difference]: With dead ends: 23 [2022-12-13 14:59:41,478 INFO L226 Difference]: Without dead ends: 9 [2022-12-13 14:59:41,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:59:41,482 INFO L413 NwaCegarLoop]: 12 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, 12 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 [2022-12-13 14:59:41,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:59:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-13 14:59:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-13 14:59:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-12-13 14:59:41,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-12-13 14:59:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:41,503 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-12-13 14:59:41,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-12-13 14:59:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 14:59:41,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:41,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:59:41,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 14:59:41,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 14:59:41,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:41,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-12-13 14:59:41,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:59:41,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182440269] [2022-12-13 14:59:41,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:41,710 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 [2022-12-13 14:59:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:59:41,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 14:59:41,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 15:00:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:00:28,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:00:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:00:38,631 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 15:00:38,631 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:00:38,632 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 15:00:38,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 15:00:38,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 15:00:38,844 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 15:00:38,853 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:00:38,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:00:38 BoogieIcfgContainer [2022-12-13 15:00:38,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:00:38,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:00:38,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:00:38,889 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:00:38,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:40" (3/4) ... [2022-12-13 15:00:38,891 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 15:00:38,918 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:00:38,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:00:38,919 INFO L158 Benchmark]: Toolchain (without parser) took 65832.51ms. Allocated memory is still 65.0MB. Free memory was 44.0MB in the beginning and 44.0MB in the end (delta: 45.8kB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-12-13 15:00:38,919 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:00:38,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.82ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 32.8MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:00:38,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.25ms. Allocated memory is still 65.0MB. Free memory was 32.8MB in the beginning and 31.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:00:38,920 INFO L158 Benchmark]: Boogie Preprocessor took 27.23ms. Allocated memory is still 65.0MB. Free memory was 31.1MB in the beginning and 45.6MB in the end (delta: -14.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-13 15:00:38,920 INFO L158 Benchmark]: RCFGBuilder took 6909.15ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 36.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:00:38,920 INFO L158 Benchmark]: TraceAbstraction took 58666.93ms. Allocated memory is still 65.0MB. Free memory was 35.4MB in the beginning and 29.5MB in the end (delta: 6.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-12-13 15:00:38,921 INFO L158 Benchmark]: Witness Printer took 29.07ms. Allocated memory is still 65.0MB. Free memory was 29.2MB in the beginning and 44.0MB in the end (delta: -14.7MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-12-13 15:00:38,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.82ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 32.8MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.25ms. Allocated memory is still 65.0MB. Free memory was 32.8MB in the beginning and 31.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.23ms. Allocated memory is still 65.0MB. Free memory was 31.1MB in the beginning and 45.6MB in the end (delta: -14.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * RCFGBuilder took 6909.15ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 36.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 58666.93ms. Allocated memory is still 65.0MB. Free memory was 35.4MB in the beginning and 29.5MB in the end (delta: 6.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 29.07ms. Allocated memory is still 65.0MB. Free memory was 29.2MB in the beginning and 44.0MB in the end (delta: -14.7MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.7535409331321716, \result=-0.6842798590660095, x=-0.7535409331321716] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7535409331321716, \result=0.7297766804695129, x=-0.7535409331321716] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-0.7535409331321716, x=0.18411558866500854] [L51] reach_error() VAL [IN=-0.7535409331321716, x=0.18411558866500854] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 48.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 15:00:39,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff431c3-4396-4ec9-b15d-42f67be7a3aa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE