/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cdfpl/newton_1_8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 07:02:39,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 07:02:39,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 07:02:39,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 07:02:39,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 07:02:39,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 07:02:39,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 07:02:39,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 07:02:39,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 07:02:39,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 07:02:39,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 07:02:39,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 07:02:39,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 07:02:39,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 07:02:39,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 07:02:39,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 07:02:39,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 07:02:39,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 07:02:39,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 07:02:39,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 07:02:39,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 07:02:39,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 07:02:39,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 07:02:39,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 07:02:39,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 07:02:39,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 07:02:39,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 07:02:39,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 07:02:39,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 07:02:39,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 07:02:39,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 07:02:39,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 07:02:39,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 07:02:39,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 07:02:39,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 07:02:39,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 07:02:39,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 07:02:39,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 07:02:39,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 07:02:39,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 07:02:39,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 07:02:39,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-01-31 07:02:39,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 07:02:39,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 07:02:39,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-31 07:02:39,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-31 07:02:39,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-31 07:02:39,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-31 07:02:39,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-31 07:02:39,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-31 07:02:39,811 INFO L138 SettingsManager]: * Use SBE=true [2022-01-31 07:02:39,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 07:02:39,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 07:02:39,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 07:02:39,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-31 07:02:39,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-31 07:02:39,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 07:02:39,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 07:02:40,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 07:02:40,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 07:02:40,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 07:02:40,029 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 07:02:40,030 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 07:02:40,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_1_8.i [2022-01-31 07:02:40,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f6edebb/227bfcb9a5964f8f8d4f4d32b021bba7/FLAGc10ec91be [2022-01-31 07:02:40,362 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 07:02:40,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_8.i [2022-01-31 07:02:40,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f6edebb/227bfcb9a5964f8f8d4f4d32b021bba7/FLAGc10ec91be [2022-01-31 07:02:40,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f6edebb/227bfcb9a5964f8f8d4f4d32b021bba7 [2022-01-31 07:02:40,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 07:02:40,802 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 07:02:40,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 07:02:40,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 07:02:40,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 07:02:40,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:40,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198e6718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40, skipping insertion in model container [2022-01-31 07:02:40,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:40,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 07:02:40,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 07:02:40,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_8.i[1722,1735] [2022-01-31 07:02:40,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 07:02:40,948 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 07:02:40,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_8.i[1722,1735] [2022-01-31 07:02:40,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 07:02:40,971 INFO L208 MainTranslator]: Completed translation [2022-01-31 07:02:40,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40 WrapperNode [2022-01-31 07:02:40,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 07:02:40,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 07:02:40,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 07:02:40,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 07:02:40,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:40,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:40,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:40,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:40,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:40,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:41,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:41,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 07:02:41,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 07:02:41,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 07:02:41,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 07:02:41,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (1/1) ... [2022-01-31 07:02:41,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 07:02:41,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 07:02:41,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 07:02:41,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 07:02:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 07:02:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 07:02:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 07:02:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 07:02:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-01-31 07:02:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-01-31 07:02:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 07:02:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 07:02:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 07:02:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-01-31 07:02:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-01-31 07:02:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 07:02:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 07:02:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 07:02:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 07:02:41,131 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 07:02:41,132 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 07:02:41,202 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 07:02:41,206 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 07:02:41,206 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 07:02:41,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:02:41 BoogieIcfgContainer [2022-01-31 07:02:41,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 07:02:41,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 07:02:41,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 07:02:41,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 07:02:41,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 07:02:40" (1/3) ... [2022-01-31 07:02:41,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47dabe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:02:41, skipping insertion in model container [2022-01-31 07:02:41,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:02:40" (2/3) ... [2022-01-31 07:02:41,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47dabe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:02:41, skipping insertion in model container [2022-01-31 07:02:41,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:02:41" (3/3) ... [2022-01-31 07:02:41,213 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_8.i [2022-01-31 07:02:41,216 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-31 07:02:41,216 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 07:02:41,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 07:02:41,252 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 07:02:41,252 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 07:02:41,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 07:02:41,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 07:02:41,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 07:02:41,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 07:02:41,268 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 07:02:41,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 07:02:41,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1142620101, now seen corresponding path program 1 times [2022-01-31 07:02:41,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 07:02:41,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628061153] [2022-01-31 07:02:41,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 07:02:41,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 07:02:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 07:02:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 07:02:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 07:02:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 07:02:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 07:02:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-01-31 07:02:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 07:02:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 07:02:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 07:02:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 07:02:41,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 07:02:41,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628061153] [2022-01-31 07:02:41,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628061153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 07:02:41,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 07:02:41,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 07:02:41,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804152157] [2022-01-31 07:02:41,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 07:02:41,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 07:02:41,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 07:02:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 07:02:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 07:02:41,474 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 07:02:41,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 07:02:41,520 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2022-01-31 07:02:41,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 07:02:41,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2022-01-31 07:02:41,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 07:02:41,527 INFO L225 Difference]: With dead ends: 47 [2022-01-31 07:02:41,527 INFO L226 Difference]: Without dead ends: 23 [2022-01-31 07:02:41,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 07:02:41,531 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 07:02:41,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 27 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 07:02:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-31 07:02:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-31 07:02:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 07:02:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2022-01-31 07:02:41,559 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 22 [2022-01-31 07:02:41,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 07:02:41,560 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2022-01-31 07:02:41,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 07:02:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2022-01-31 07:02:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 07:02:41,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 07:02:41,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 07:02:41,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 07:02:41,561 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 07:02:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 07:02:41,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2141229945, now seen corresponding path program 1 times [2022-01-31 07:02:41,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 07:02:41,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507853285] [2022-01-31 07:02:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 07:02:41,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 07:02:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 07:02:41,577 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 07:02:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 07:02:41,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 07:02:41,611 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 07:02:41,612 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 07:02:41,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 07:02:41,617 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 07:02:41,619 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 07:02:41,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 07:02:41 BoogieIcfgContainer [2022-01-31 07:02:41,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 07:02:41,644 INFO L158 Benchmark]: Toolchain (without parser) took 840.83ms. Allocated memory is still 154.1MB. Free memory was 103.5MB in the beginning and 91.5MB in the end (delta: 11.9MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-01-31 07:02:41,644 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 154.1MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 07:02:41,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.63ms. Allocated memory is still 154.1MB. Free memory was 103.2MB in the beginning and 130.2MB in the end (delta: -27.0MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-01-31 07:02:41,647 INFO L158 Benchmark]: Boogie Preprocessor took 31.21ms. Allocated memory is still 154.1MB. Free memory was 130.2MB in the beginning and 128.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 07:02:41,648 INFO L158 Benchmark]: RCFGBuilder took 203.61ms. Allocated memory is still 154.1MB. Free memory was 128.8MB in the beginning and 118.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 07:02:41,650 INFO L158 Benchmark]: TraceAbstraction took 434.22ms. Allocated memory is still 154.1MB. Free memory was 118.3MB in the beginning and 91.5MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-01-31 07:02:41,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 154.1MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 167.63ms. Allocated memory is still 154.1MB. Free memory was 103.2MB in the beginning and 130.2MB in the end (delta: -27.0MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.21ms. Allocated memory is still 154.1MB. Free memory was 130.2MB in the beginning and 128.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 203.61ms. Allocated memory is still 154.1MB. Free memory was 128.8MB in the beginning and 118.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 434.22ms. Allocated memory is still 154.1MB. Free memory was 118.3MB in the beginning and 91.5MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * 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 > -2.0f && IN < 2.0f) VAL [\old(cond)=1] [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) VAL [IN=53] [L42] CALL, EXPR f(IN) VAL [\old(x)=53] [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) VAL [f(IN)=52, IN=53] [L42] CALL, EXPR fp(IN) VAL [\old(x)=53] [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) VAL [f(IN)=52, fp(IN)=50, IN=53] [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 7 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 24 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 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 [2022-01-31 07:02:41,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...