./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 19:48:52,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 19:48:52,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 19:48:52,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 19:48:52,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 19:48:52,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 19:48:52,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 19:48:52,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 19:48:52,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 19:48:52,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 19:48:52,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 19:48:52,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 19:48:52,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 19:48:52,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 19:48:52,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 19:48:52,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 19:48:52,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 19:48:52,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 19:48:52,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 19:48:52,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 19:48:52,814 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 19:48:52,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 19:48:52,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 19:48:52,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 19:48:52,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 19:48:52,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 19:48:52,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 19:48:52,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 19:48:52,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 19:48:52,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 19:48:52,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 19:48:52,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 19:48:52,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 19:48:52,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 19:48:52,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 19:48:52,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 19:48:52,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 19:48:52,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 19:48:52,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 19:48:52,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 19:48:52,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 19:48:52,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 19:48:52,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 19:48:52,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 19:48:52,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 19:48:52,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 19:48:52,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 19:48:52,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 19:48:52,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 19:48:52,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 19:48:52,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 19:48:52,871 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 19:48:52,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 19:48:52,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 19:48:52,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 19:48:52,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 19:48:52,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 19:48:52,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 19:48:52,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 19:48:52,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 19:48:52,872 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 19:48:52,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 19:48:52,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 19:48:52,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 19:48:52,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 19:48:52,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 19:48:52,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 19:48:52,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:48:52,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 19:48:52,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 19:48:52,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 19:48:52,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 19:48:52,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 19:48:52,874 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 19:48:52,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 19:48:52,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 19:48:52,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 [2022-07-19 19:48:53,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 19:48:53,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 19:48:53,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 19:48:53,110 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 19:48:53,111 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 19:48:53,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2022-07-19 19:48:53,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e748903d/819fced6085449089310da09e95fd2e4/FLAG80a22a65f [2022-07-19 19:48:53,486 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 19:48:53,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2022-07-19 19:48:53,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e748903d/819fced6085449089310da09e95fd2e4/FLAG80a22a65f [2022-07-19 19:48:53,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e748903d/819fced6085449089310da09e95fd2e4 [2022-07-19 19:48:53,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 19:48:53,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 19:48:53,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 19:48:53,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 19:48:53,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 19:48:53,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:48:53" (1/1) ... [2022-07-19 19:48:53,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12baafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:53, skipping insertion in model container [2022-07-19 19:48:53,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:48:53" (1/1) ... [2022-07-19 19:48:53,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 19:48:53,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 19:48:54,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2022-07-19 19:48:54,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2022-07-19 19:48:54,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:48:54,096 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 19:48:54,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2022-07-19 19:48:54,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2022-07-19 19:48:54,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:48:54,119 INFO L208 MainTranslator]: Completed translation [2022-07-19 19:48:54,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54 WrapperNode [2022-07-19 19:48:54,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 19:48:54,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 19:48:54,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 19:48:54,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 19:48:54,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,155 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2022-07-19 19:48:54,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 19:48:54,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 19:48:54,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 19:48:54,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 19:48:54,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 19:48:54,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 19:48:54,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 19:48:54,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 19:48:54,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (1/1) ... [2022-07-19 19:48:54,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:48:54,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:48:54,213 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) [2022-07-19 19:48:54,214 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 [2022-07-19 19:48:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 19:48:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 19:48:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 19:48:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 19:48:54,288 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 19:48:54,289 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 19:48:54,488 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 19:48:54,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 19:48:54,493 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 19:48:54,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:48:54 BoogieIcfgContainer [2022-07-19 19:48:54,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 19:48:54,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 19:48:54,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 19:48:54,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 19:48:54,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 07:48:53" (1/3) ... [2022-07-19 19:48:54,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f617ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:48:54, skipping insertion in model container [2022-07-19 19:48:54,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:54" (2/3) ... [2022-07-19 19:48:54,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f617ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:48:54, skipping insertion in model container [2022-07-19 19:48:54,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:48:54" (3/3) ... [2022-07-19 19:48:54,499 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_6.i [2022-07-19 19:48:54,508 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 19:48:54,511 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 19:48:54,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 19:48:54,569 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1d490ca8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1e795919 [2022-07-19 19:48:54,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 19:48:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-07-19 19:48:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:48:54,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:48:54,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:48:54,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:48:54,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:48:54,591 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-07-19 19:48:54,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:48:54,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997155525] [2022-07-19 19:48:54,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:48:54,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:48:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:48:54,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:48:54,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:48:54,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997155525] [2022-07-19 19:48:54,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997155525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:48:54,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:48:54,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 19:48:54,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713516947] [2022-07-19 19:48:54,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:48:54,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 19:48:54,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:48:54,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 19:48:54,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 19:48:54,737 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-07-19 19:48:54,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:48:54,752 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-07-19 19:48:54,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 19:48:54,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-07-19 19:48:54,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:48:54,759 INFO L225 Difference]: With dead ends: 47 [2022-07-19 19:48:54,759 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 19:48:54,762 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 [2022-07-19 19:48:54,767 INFO L413 NwaCegarLoop]: 31 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, 31 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 [2022-07-19 19:48:54,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 19:48:54,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 19:48:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 19:48:54,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:48:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-07-19 19:48:54,794 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-07-19 19:48:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:48:54,794 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-07-19 19:48:54,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-07-19 19:48:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-07-19 19:48:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:48:54,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:48:54,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:48:54,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 19:48:54,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:48:54,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:48:54,798 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-07-19 19:48:54,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:48:54,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057659966] [2022-07-19 19:48:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:48:54,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:48:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:48:54,827 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 19:48:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:48:54,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 19:48:54,849 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 19:48:54,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 19:48:54,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 19:48:54,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 19:48:54,858 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 19:48:54,862 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 19:48:54,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 07:48:54 BoogieIcfgContainer [2022-07-19 19:48:54,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 19:48:54,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 19:48:54,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 19:48:54,885 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 19:48:54,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:48:54" (3/4) ... [2022-07-19 19:48:54,887 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 19:48:54,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 19:48:54,889 INFO L158 Benchmark]: Toolchain (without parser) took 958.68ms. Allocated memory is still 123.7MB. Free memory was 86.7MB in the beginning and 61.1MB in the end (delta: 25.6MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-07-19 19:48:54,889 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory was 103.6MB in the beginning and 103.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:48:54,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.69ms. Allocated memory is still 123.7MB. Free memory was 86.5MB in the beginning and 98.8MB in the end (delta: -12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 19:48:54,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.11ms. Allocated memory is still 123.7MB. Free memory was 98.8MB in the beginning and 97.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 19:48:54,893 INFO L158 Benchmark]: Boogie Preprocessor took 29.26ms. Allocated memory is still 123.7MB. Free memory was 97.1MB in the beginning and 95.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:48:54,894 INFO L158 Benchmark]: RCFGBuilder took 308.25ms. Allocated memory is still 123.7MB. Free memory was 95.9MB in the beginning and 85.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 19:48:54,894 INFO L158 Benchmark]: TraceAbstraction took 387.98ms. Allocated memory is still 123.7MB. Free memory was 84.5MB in the beginning and 61.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-19 19:48:54,895 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 123.7MB. Free memory was 61.5MB in the beginning and 61.1MB in the end (delta: 371.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:48:54,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory was 103.6MB in the beginning and 103.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.69ms. Allocated memory is still 123.7MB. Free memory was 86.5MB in the beginning and 98.8MB in the end (delta: -12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.11ms. Allocated memory is still 123.7MB. Free memory was 98.8MB in the beginning and 97.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.26ms. Allocated memory is still 123.7MB. Free memory was 97.1MB in the beginning and 95.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.25ms. Allocated memory is still 123.7MB. Free memory was 95.9MB in the beginning and 85.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 387.98ms. Allocated memory is still 123.7MB. Free memory was 84.5MB in the beginning and 61.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 123.7MB. Free memory was 61.5MB in the beginning and 61.1MB in the end (delta: 371.1kB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] 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)=49, x=49] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=49] [L102] reach_error() VAL [IN=49] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 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, 31 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=27occurred 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2022-07-19 19:48:54,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 19:48:56,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 19:48:56,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 19:48:56,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 19:48:56,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 19:48:56,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 19:48:56,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 19:48:56,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 19:48:56,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 19:48:56,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 19:48:56,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 19:48:56,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 19:48:56,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 19:48:56,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 19:48:56,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 19:48:56,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 19:48:56,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 19:48:56,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 19:48:56,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 19:48:56,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 19:48:56,682 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 19:48:56,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 19:48:56,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 19:48:56,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 19:48:56,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 19:48:56,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 19:48:56,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 19:48:56,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 19:48:56,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 19:48:56,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 19:48:56,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 19:48:56,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 19:48:56,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 19:48:56,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 19:48:56,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 19:48:56,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 19:48:56,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 19:48:56,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 19:48:56,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 19:48:56,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 19:48:56,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 19:48:56,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 19:48:56,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 19:48:56,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 19:48:56,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 19:48:56,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 19:48:56,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 19:48:56,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 19:48:56,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 19:48:56,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 19:48:56,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 19:48:56,728 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 19:48:56,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 19:48:56,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 19:48:56,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 19:48:56,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 19:48:56,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 19:48:56,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 19:48:56,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 19:48:56,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 19:48:56,730 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 19:48:56,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 19:48:56,730 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 19:48:56,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 19:48:56,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 19:48:56,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 19:48:56,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 19:48:56,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 19:48:56,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 19:48:56,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:48:56,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 19:48:56,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 19:48:56,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 19:48:56,732 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 19:48:56,732 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 19:48:56,732 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 19:48:56,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 19:48:56,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 19:48:56,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 19:48:56,733 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 [2022-07-19 19:48:56,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 19:48:57,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 19:48:57,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 19:48:57,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 19:48:57,005 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 19:48:57,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2022-07-19 19:48:57,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f937d272/47b36ba05ace4f6eabcac54c93ad7a54/FLAG14fc2759f [2022-07-19 19:48:57,401 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 19:48:57,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2022-07-19 19:48:57,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f937d272/47b36ba05ace4f6eabcac54c93ad7a54/FLAG14fc2759f [2022-07-19 19:48:57,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f937d272/47b36ba05ace4f6eabcac54c93ad7a54 [2022-07-19 19:48:57,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 19:48:57,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 19:48:57,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 19:48:57,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 19:48:57,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 19:48:57,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b6f4e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57, skipping insertion in model container [2022-07-19 19:48:57,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 19:48:57,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 19:48:57,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2022-07-19 19:48:57,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2022-07-19 19:48:57,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:48:57,644 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 19:48:57,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2022-07-19 19:48:57,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2022-07-19 19:48:57,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:48:57,691 INFO L208 MainTranslator]: Completed translation [2022-07-19 19:48:57,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57 WrapperNode [2022-07-19 19:48:57,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 19:48:57,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 19:48:57,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 19:48:57,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 19:48:57,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,738 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2022-07-19 19:48:57,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 19:48:57,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 19:48:57,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 19:48:57,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 19:48:57,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 19:48:57,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 19:48:57,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 19:48:57,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 19:48:57,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (1/1) ... [2022-07-19 19:48:57,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:48:57,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:48:57,801 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) [2022-07-19 19:48:57,815 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 [2022-07-19 19:48:57,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 19:48:57,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 19:48:57,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 19:48:57,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 19:48:57,884 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 19:48:57,885 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 19:49:03,711 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 19:49:03,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 19:49:03,721 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 19:49:03,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:49:03 BoogieIcfgContainer [2022-07-19 19:49:03,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 19:49:03,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 19:49:03,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 19:49:03,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 19:49:03,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 07:48:57" (1/3) ... [2022-07-19 19:49:03,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7247d989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:49:03, skipping insertion in model container [2022-07-19 19:49:03,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:48:57" (2/3) ... [2022-07-19 19:49:03,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7247d989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:49:03, skipping insertion in model container [2022-07-19 19:49:03,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:49:03" (3/3) ... [2022-07-19 19:49:03,729 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_6.i [2022-07-19 19:49:03,739 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 19:49:03,739 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 19:49:03,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 19:49:03,790 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@694aa474, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c3be872 [2022-07-19 19:49:03,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 19:49:03,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-07-19 19:49:03,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:49:03,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:49:03,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:49:03,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:49:03,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:49:03,803 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-07-19 19:49:03,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 19:49:03,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656957659] [2022-07-19 19:49:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:49:03,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 19:49:03,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 19:49:03,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 19:49:03,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 19:49:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:49:04,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 19:49:04,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 19:49:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:49:04,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 19:49:04,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 19:49:04,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656957659] [2022-07-19 19:49:04,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656957659] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:49:04,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:49:04,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 19:49:04,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918874794] [2022-07-19 19:49:04,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:49:04,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 19:49:04,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 19:49:04,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 19:49:04,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 19:49:04,768 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-07-19 19:49:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:49:04,781 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-07-19 19:49:04,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 19:49:04,783 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-07-19 19:49:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:49:04,788 INFO L225 Difference]: With dead ends: 47 [2022-07-19 19:49:04,789 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 19:49:04,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 19:49:04,794 INFO L413 NwaCegarLoop]: 31 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, 31 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 [2022-07-19 19:49:04,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 19:49:04,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 19:49:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 19:49:04,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:49:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-07-19 19:49:04,827 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-07-19 19:49:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:49:04,827 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-07-19 19:49:04,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-07-19 19:49:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-07-19 19:49:04,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:49:04,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:49:04,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:49:04,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 19:49:05,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 19:49:05,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:49:05,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:49:05,044 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-07-19 19:49:05,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 19:49:05,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009323001] [2022-07-19 19:49:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:49:05,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 19:49:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 19:49:05,046 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 19:49:05,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 19:49:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:49:43,199 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 19:49:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:49:46,017 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 19:49:46,017 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 19:49:46,018 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 19:49:46,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 19:49:46,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 19:49:46,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 19:49:46,222 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 19:49:46,225 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 19:49:46,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 07:49:46 BoogieIcfgContainer [2022-07-19 19:49:46,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 19:49:46,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 19:49:46,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 19:49:46,248 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 19:49:46,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:49:03" (3/4) ... [2022-07-19 19:49:46,249 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 19:49:46,294 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 19:49:46,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 19:49:46,295 INFO L158 Benchmark]: Toolchain (without parser) took 48873.26ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.8MB in the beginning and 44.6MB in the end (delta: -10.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-07-19 19:49:46,296 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 52.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:49:46,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.07ms. Allocated memory is still 54.5MB. Free memory was 33.6MB in the beginning and 36.6MB in the end (delta: -3.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 19:49:46,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.16ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 34.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 19:49:46,297 INFO L158 Benchmark]: Boogie Preprocessor took 40.12ms. Allocated memory is still 54.5MB. Free memory was 34.7MB in the beginning and 33.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:49:46,298 INFO L158 Benchmark]: RCFGBuilder took 5942.57ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.4MB in the beginning and 52.7MB in the end (delta: -19.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-07-19 19:49:46,298 INFO L158 Benchmark]: TraceAbstraction took 42521.95ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 46.5MB in the end (delta: 5.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-19 19:49:46,299 INFO L158 Benchmark]: Witness Printer took 48.10ms. Allocated memory is still 71.3MB. Free memory was 46.5MB in the beginning and 44.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 19:49:46,302 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 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 52.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.07ms. Allocated memory is still 54.5MB. Free memory was 33.6MB in the beginning and 36.6MB in the end (delta: -3.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.16ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 34.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.12ms. Allocated memory is still 54.5MB. Free memory was 34.7MB in the beginning and 33.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 5942.57ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.4MB in the beginning and 52.7MB in the end (delta: -19.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 42521.95ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 46.5MB in the end (delta: 5.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 48.10ms. Allocated memory is still 71.3MB. Free memory was 46.5MB in the beginning and 44.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] 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)=-0.7935889363288879, \result=-0.7129530310630798, x=-0.7935889363288879] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7935889363288879, \result=0.7019813656806946, x=-0.7935889363288879] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7935889363288879, x=0.222040593624115] [L102] reach_error() VAL [IN=-0.7935889363288879, x=0.222040593624115] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 42.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 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, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 38.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 30 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! [2022-07-19 19:49:46,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE