./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_2+newton_1_4.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_2+newton_1_4.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 8791b111097588f326aaf544c3865a21bd353d95ed7e15d093f7405d42c088eb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 19:31:06,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 19:31:06,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 19:31:06,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 19:31:06,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 19:31:06,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 19:31:06,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 19:31:06,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 19:31:06,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 19:31:06,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 19:31:06,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 19:31:06,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 19:31:06,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 19:31:06,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 19:31:06,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 19:31:06,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 19:31:06,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 19:31:06,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 19:31:06,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 19:31:06,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 19:31:06,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 19:31:06,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 19:31:06,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 19:31:06,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 19:31:06,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 19:31:06,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 19:31:06,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 19:31:06,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 19:31:06,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 19:31:06,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 19:31:06,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 19:31:06,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 19:31:06,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 19:31:06,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 19:31:06,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 19:31:06,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 19:31:06,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 19:31:06,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 19:31:06,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 19:31:06,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 19:31:06,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 19:31:06,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 19:31:06,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 19:31:06,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 19:31:06,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 19:31:06,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 19:31:06,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 19:31:06,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 19:31:06,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 19:31:06,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 19:31:06,950 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 19:31:06,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 19:31:06,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 19:31:06,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 19:31:06,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 19:31:06,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 19:31:06,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 19:31:06,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 19:31:06,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 19:31:06,953 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 19:31:06,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 19:31:06,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 19:31:06,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 19:31:06,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 19:31:06,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 19:31:06,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 19:31:06,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:06,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 19:31:06,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 19:31:06,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 19:31:06,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 19:31:06,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 19:31:06,955 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 19:31:06,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 19:31:06,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 19:31:06,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8791b111097588f326aaf544c3865a21bd353d95ed7e15d093f7405d42c088eb [2022-02-20 19:31:07,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 19:31:07,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 19:31:07,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 19:31:07,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 19:31:07,202 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 19:31:07,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_4.i [2022-02-20 19:31:07,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a8018c2/21d9dd94a8cb4c959c5e8e8018fbd700/FLAG7819847a4 [2022-02-20 19:31:07,591 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 19:31:07,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_4.i [2022-02-20 19:31:07,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a8018c2/21d9dd94a8cb4c959c5e8e8018fbd700/FLAG7819847a4 [2022-02-20 19:31:07,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a8018c2/21d9dd94a8cb4c959c5e8e8018fbd700 [2022-02-20 19:31:07,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 19:31:07,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 19:31:07,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:07,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 19:31:07,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 19:31:07,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460219a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07, skipping insertion in model container [2022-02-20 19:31:07,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 19:31:07,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 19:31:07,777 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_2+newton_1_4.i[1226,1239] [2022-02-20 19:31:07,800 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_2+newton_1_4.i[2820,2833] [2022-02-20 19:31:07,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:07,808 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 19:31:07,818 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_2+newton_1_4.i[1226,1239] [2022-02-20 19:31:07,829 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_2+newton_1_4.i[2820,2833] [2022-02-20 19:31:07,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:07,841 INFO L208 MainTranslator]: Completed translation [2022-02-20 19:31:07,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07 WrapperNode [2022-02-20 19:31:07,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:07,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:07,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 19:31:07,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 19:31:07,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,907 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2022-02-20 19:31:07,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:07,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 19:31:07,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 19:31:07,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 19:31:07,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 19:31:07,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 19:31:07,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 19:31:07,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 19:31:07,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (1/1) ... [2022-02-20 19:31:07,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:07,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 19:31:07,980 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) [2022-02-20 19:31:08,004 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 [2022-02-20 19:31:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 19:31:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 19:31:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 19:31:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 19:31:08,081 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 19:31:08,082 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 19:31:08,252 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 19:31:08,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 19:31:08,257 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 19:31:08,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:08 BoogieIcfgContainer [2022-02-20 19:31:08,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 19:31:08,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 19:31:08,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 19:31:08,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 19:31:08,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:31:07" (1/3) ... [2022-02-20 19:31:08,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec0bf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:08, skipping insertion in model container [2022-02-20 19:31:08,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:07" (2/3) ... [2022-02-20 19:31:08,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec0bf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:08, skipping insertion in model container [2022-02-20 19:31:08,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:08" (3/3) ... [2022-02-20 19:31:08,268 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_4.i [2022-02-20 19:31:08,272 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 19:31:08,272 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 19:31:08,307 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 19:31:08,312 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 [2022-02-20 19:31:08,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 19:31:08,324 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) [2022-02-20 19:31:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:08,328 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:08,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:08,329 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:08,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:08,334 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-02-20 19:31:08,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:31:08,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514772918] [2022-02-20 19:31:08,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:08,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:31:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:08,507 INFO L290 TraceCheckUtils]: 0: Hoare triple {30#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {30#true} is VALID [2022-02-20 19:31:08,509 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~ret12#1, main_#t~ret13#1;assume -2147483648 <= main_#t~nondet11#1 && main_#t~nondet11#1 <= 2147483647; {30#true} is VALID [2022-02-20 19:31:08,509 INFO L290 TraceCheckUtils]: 2: Hoare triple {30#true} assume !(0 != main_#t~nondet11#1);havoc main_#t~nondet11#1;assume { :begin_inline_main2 } true;havoc main2_#res#1;havoc main2_#t~nondet8#1, main2_#t~ret9#1, main2_#t~ret10#1, main2_~IN~0#1, main2_~x~1#1;main2_~IN~0#1 := main2_#t~nondet8#1;havoc main2_#t~nondet8#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryFLOATComparisonOperation(main2_~IN~0#1, ~someUnaryFLOAToperation(0.8)) && ~someBinaryFLOATComparisonOperation(main2_~IN~0#1, 0.8) then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {30#true} is VALID [2022-02-20 19:31:08,510 INFO L290 TraceCheckUtils]: 3: Hoare triple {30#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {31#false} is VALID [2022-02-20 19:31:08,510 INFO L290 TraceCheckUtils]: 4: Hoare triple {31#false} assume { :end_inline_assume_abort_if_not } true;assume { :begin_inline_f } true;f_#in~x#1 := main2_~IN~0#1;havoc f_#res#1;havoc f_~x#1;f_~x#1 := f_#in~x#1;f_#res#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x#1, ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x#1, f_~x#1), f_~x#1), 6.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x#1, f_~x#1), f_~x#1), f_~x#1), f_~x#1), 120.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x#1, f_~x#1), f_~x#1), f_~x#1), f_~x#1), f_~x#1), f_~x#1), 5040.0)); {31#false} is VALID [2022-02-20 19:31:08,511 INFO L290 TraceCheckUtils]: 5: Hoare triple {31#false} main2_#t~ret9#1 := f_#res#1;assume { :end_inline_f } true;assume { :begin_inline_fp } true;fp_#in~x#1 := main2_~IN~0#1;havoc fp_#res#1;havoc fp_~x#1;fp_~x#1 := fp_#in~x#1;fp_#res#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(1), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x#1, fp_~x#1), 2.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x#1, fp_~x#1), fp_~x#1), fp_~x#1), 24.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x#1, fp_~x#1), fp_~x#1), fp_~x#1), fp_~x#1), fp_~x#1), 720.0)); {31#false} is VALID [2022-02-20 19:31:08,511 INFO L290 TraceCheckUtils]: 6: Hoare triple {31#false} main2_#t~ret10#1 := fp_#res#1;assume { :end_inline_fp } true;main2_~x~1#1 := ~someBinaryArithmeticFLOAToperation(main2_~IN~0#1, ~someBinaryArithmeticFLOAToperation(main2_#t~ret9#1, main2_#t~ret10#1));havoc main2_#t~ret9#1;havoc main2_#t~ret10#1; {31#false} is VALID [2022-02-20 19:31:08,511 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#false} assume !~someBinaryDOUBLEComparisonOperation(main2_~x~1#1, 0.1); {31#false} is VALID [2022-02-20 19:31:08,512 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-02-20 19:31:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 19:31:08,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:31:08,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514772918] [2022-02-20 19:31:08,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514772918] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:31:08,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:31:08,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:31:08,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774498465] [2022-02-20 19:31:08,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:31:08,521 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 [2022-02-20 19:31:08,522 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:31:08,525 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 19:31:08,557 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:31:08,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 19:31:08,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:31:08,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 19:31:08,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 19:31:08,582 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) [2022-02-20 19:31:08,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:08,636 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-02-20 19:31:08,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 19:31:08,636 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 [2022-02-20 19:31:08,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:31:08,637 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 19:31:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 19:31:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:08,647 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 57 transitions. [2022-02-20 19:31:08,694 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:31:08,701 INFO L225 Difference]: With dead ends: 47 [2022-02-20 19:31:08,701 INFO L226 Difference]: Without dead ends: 19 [2022-02-20 19:31:08,704 INFO L932 BasicCegarLoop]: 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 [2022-02-20 19:31:08,707 INFO L933 BasicCegarLoop]: 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 [2022-02-20 19:31:08,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:31:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-02-20 19:31:08,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-02-20 19:31:08,759 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:31:08,759 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second 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) [2022-02-20 19:31:08,760 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second 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) [2022-02-20 19:31:08,761 INFO L87 Difference]: Start difference. First operand 19 states. Second 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) [2022-02-20 19:31:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:08,767 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:08,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:08,768 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:08,768 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 19 states. [2022-02-20 19:31:08,768 INFO L87 Difference]: Start difference. First 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) Second operand 19 states. [2022-02-20 19:31:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:08,771 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:08,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:08,771 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:08,771 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:31:08,771 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:31:08,773 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) [2022-02-20 19:31:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-02-20 19:31:08,775 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-02-20 19:31:08,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:31:08,776 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-02-20 19:31:08,776 INFO L471 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) [2022-02-20 19:31:08,776 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:08,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:08,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:08,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 19:31:08,779 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:08,782 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-02-20 19:31:08,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:31:08,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929015164] [2022-02-20 19:31:08,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:31:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 19:31:08,816 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 19:31:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 19:31:08,857 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 19:31:08,858 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 19:31:08,862 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 19:31:08,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 19:31:08,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 19:31:08,870 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 19:31:08,871 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 19:31:08,888 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 19:31:08,888 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 19:31:08,888 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 19:31:08,888 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 19:31:08,888 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 19:31:08,888 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 19:31:08,888 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 19:31:08,889 WARN L170 areAnnotationChecker]: L101-2 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L55-2 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2022-02-20 19:31:08,890 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 19:31:08,890 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 19:31:08,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 07:31:08 BoogieIcfgContainer [2022-02-20 19:31:08,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 19:31:08,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 19:31:08,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 19:31:08,892 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 19:31:08,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:08" (3/4) ... [2022-02-20 19:31:08,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 19:31:08,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 19:31:08,895 INFO L158 Benchmark]: Toolchain (without parser) took 1285.36ms. Allocated memory is still 109.1MB. Free memory was 78.0MB in the beginning and 76.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 19:31:08,895 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 48.9MB in the beginning and 48.9MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 19:31:08,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.69ms. Allocated memory is still 109.1MB. Free memory was 78.0MB in the beginning and 83.9MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 19:31:08,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.48ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 81.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 19:31:08,898 INFO L158 Benchmark]: Boogie Preprocessor took 40.42ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 19:31:08,898 INFO L158 Benchmark]: RCFGBuilder took 309.37ms. Allocated memory is still 109.1MB. Free memory was 80.3MB in the beginning and 67.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 19:31:08,899 INFO L158 Benchmark]: TraceAbstraction took 627.89ms. Allocated memory is still 109.1MB. Free memory was 66.2MB in the beginning and 77.0MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 19:31:08,899 INFO L158 Benchmark]: Witness Printer took 2.48ms. Allocated memory is still 109.1MB. Free memory was 77.0MB in the beginning and 76.3MB in the end (delta: 718.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 19:31:08,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 48.9MB in the beginning and 48.9MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.69ms. Allocated memory is still 109.1MB. Free memory was 78.0MB in the beginning and 83.9MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.48ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 81.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.42ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.37ms. Allocated memory is still 109.1MB. Free memory was 80.3MB in the beginning and 67.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 627.89ms. Allocated memory is still 109.1MB. Free memory was 66.2MB in the beginning and 77.0MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.48ms. Allocated memory is still 109.1MB. Free memory was 77.0MB in the beginning and 76.3MB in the end (delta: 718.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 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, 0.1s 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 [2022-02-20 19:31:08,928 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... --- 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 -ea -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_2+newton_1_4.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 8791b111097588f326aaf544c3865a21bd353d95ed7e15d093f7405d42c088eb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 19:31:10,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 19:31:10,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 19:31:10,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 19:31:10,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 19:31:10,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 19:31:10,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 19:31:10,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 19:31:10,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 19:31:10,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 19:31:10,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 19:31:10,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 19:31:10,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 19:31:10,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 19:31:10,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 19:31:10,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 19:31:10,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 19:31:10,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 19:31:10,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 19:31:10,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 19:31:10,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 19:31:10,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 19:31:10,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 19:31:10,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 19:31:10,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 19:31:10,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 19:31:10,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 19:31:10,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 19:31:10,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 19:31:10,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 19:31:10,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 19:31:10,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 19:31:10,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 19:31:10,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 19:31:10,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 19:31:10,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 19:31:10,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 19:31:10,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 19:31:10,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 19:31:10,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 19:31:10,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 19:31:10,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 19:31:10,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 19:31:10,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 19:31:10,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 19:31:10,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 19:31:10,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 19:31:10,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 19:31:10,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 19:31:10,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 19:31:10,872 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 19:31:10,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 19:31:10,873 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 19:31:10,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 19:31:10,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 19:31:10,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 19:31:10,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 19:31:10,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 19:31:10,874 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 19:31:10,874 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 19:31:10,874 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 19:31:10,875 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 19:31:10,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 19:31:10,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 19:31:10,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 19:31:10,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 19:31:10,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 19:31:10,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 19:31:10,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:10,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 19:31:10,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 19:31:10,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 19:31:10,877 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 19:31:10,877 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 19:31:10,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 19:31:10,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 19:31:10,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 19:31:10,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 19:31:10,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8791b111097588f326aaf544c3865a21bd353d95ed7e15d093f7405d42c088eb [2022-02-20 19:31:11,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 19:31:11,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 19:31:11,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 19:31:11,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 19:31:11,202 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 19:31:11,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_4.i [2022-02-20 19:31:11,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ca6e3be/069f53eb5d0d46b3b22d6aec370bac83/FLAG0bcafe683 [2022-02-20 19:31:11,580 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 19:31:11,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_4.i [2022-02-20 19:31:11,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ca6e3be/069f53eb5d0d46b3b22d6aec370bac83/FLAG0bcafe683 [2022-02-20 19:31:12,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ca6e3be/069f53eb5d0d46b3b22d6aec370bac83 [2022-02-20 19:31:12,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 19:31:12,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 19:31:12,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:12,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 19:31:12,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 19:31:12,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fce82f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12, skipping insertion in model container [2022-02-20 19:31:12,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 19:31:12,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 19:31:12,163 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_2+newton_1_4.i[1226,1239] [2022-02-20 19:31:12,229 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_2+newton_1_4.i[2820,2833] [2022-02-20 19:31:12,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:12,250 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 19:31:12,267 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_2+newton_1_4.i[1226,1239] [2022-02-20 19:31:12,293 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_2+newton_1_4.i[2820,2833] [2022-02-20 19:31:12,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:12,319 INFO L208 MainTranslator]: Completed translation [2022-02-20 19:31:12,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12 WrapperNode [2022-02-20 19:31:12,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:12,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:12,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 19:31:12,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 19:31:12,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,379 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2022-02-20 19:31:12,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:12,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 19:31:12,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 19:31:12,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 19:31:12,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 19:31:12,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 19:31:12,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 19:31:12,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 19:31:12,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (1/1) ... [2022-02-20 19:31:12,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:12,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 19:31:12,456 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) [2022-02-20 19:31:12,483 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 [2022-02-20 19:31:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 19:31:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 19:31:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 19:31:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 19:31:12,570 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 19:31:12,572 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 19:31:18,361 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 19:31:18,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 19:31:18,366 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 19:31:18,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:18 BoogieIcfgContainer [2022-02-20 19:31:18,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 19:31:18,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 19:31:18,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 19:31:18,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 19:31:18,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:31:12" (1/3) ... [2022-02-20 19:31:18,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a2ef6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:18, skipping insertion in model container [2022-02-20 19:31:18,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:12" (2/3) ... [2022-02-20 19:31:18,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a2ef6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:18, skipping insertion in model container [2022-02-20 19:31:18,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:18" (3/3) ... [2022-02-20 19:31:18,376 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_4.i [2022-02-20 19:31:18,381 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 19:31:18,381 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 19:31:18,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 19:31:18,422 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 [2022-02-20 19:31:18,422 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 19:31:18,433 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) [2022-02-20 19:31:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:18,437 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:18,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:18,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:18,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:18,442 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-02-20 19:31:18,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 19:31:18,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552146258] [2022-02-20 19:31:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:18,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 19:31:18,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 19:31:18,457 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) [2022-02-20 19:31:18,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 19:31:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:19,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 19:31:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:19,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 19:31:19,392 INFO L290 TraceCheckUtils]: 0: Hoare triple {30#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(8bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {30#true} is VALID [2022-02-20 19:31:19,392 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~ret12#1, main_#t~ret13#1; {30#true} is VALID [2022-02-20 19:31:19,393 INFO L290 TraceCheckUtils]: 2: Hoare triple {30#true} assume !(0bv32 != main_#t~nondet11#1);havoc main_#t~nondet11#1;assume { :begin_inline_main2 } true;havoc main2_#res#1;havoc main2_#t~nondet8#1, main2_#t~ret9#1, main2_#t~ret10#1, main2_~IN~0#1, main2_~x~1#1;main2_~IN~0#1 := main2_#t~nondet8#1;havoc main2_#t~nondet8#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.gt~FLOAT(main2_~IN~0#1, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 0.8))) && ~fp.lt~FLOAT(main2_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 0.8)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {30#true} is VALID [2022-02-20 19:31:19,395 INFO L290 TraceCheckUtils]: 3: Hoare triple {30#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {31#false} is VALID [2022-02-20 19:31:19,395 INFO L290 TraceCheckUtils]: 4: Hoare triple {31#false} assume { :end_inline_assume_abort_if_not } true;assume { :begin_inline_f } true;f_#in~x#1 := main2_~IN~0#1;havoc f_#res#1;havoc f_~x#1;f_~x#1 := f_#in~x#1;f_#res#1 := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, f_~x#1, ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x#1, f_~x#1), f_~x#1), ~to_fp~FLOAT(currentRoundingMode, 6.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x#1, f_~x#1), f_~x#1), f_~x#1), f_~x#1), ~to_fp~FLOAT(currentRoundingMode, 120.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x#1, f_~x#1), f_~x#1), f_~x#1), f_~x#1), f_~x#1), f_~x#1), ~to_fp~FLOAT(currentRoundingMode, 5040.0))); {31#false} is VALID [2022-02-20 19:31:19,396 INFO L290 TraceCheckUtils]: 5: Hoare triple {31#false} main2_#t~ret9#1 := f_#res#1;assume { :end_inline_f } true;assume { :begin_inline_fp } true;fp_#in~x#1 := main2_~IN~0#1;havoc fp_#res#1;havoc fp_~x#1;fp_~x#1 := fp_#in~x#1;fp_#res#1 := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~convertINTToFLOAT(currentRoundingMode, 1bv32), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x#1, fp_~x#1), ~to_fp~FLOAT(currentRoundingMode, 2.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x#1, fp_~x#1), fp_~x#1), fp_~x#1), ~to_fp~FLOAT(currentRoundingMode, 24.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x#1, fp_~x#1), fp_~x#1), fp_~x#1), fp_~x#1), fp_~x#1), ~to_fp~FLOAT(currentRoundingMode, 720.0))); {31#false} is VALID [2022-02-20 19:31:19,397 INFO L290 TraceCheckUtils]: 6: Hoare triple {31#false} main2_#t~ret10#1 := fp_#res#1;assume { :end_inline_fp } true;main2_~x~1#1 := ~fp.sub~FLOAT(currentRoundingMode, main2_~IN~0#1, ~fp.div~FLOAT(currentRoundingMode, main2_#t~ret9#1, main2_#t~ret10#1));havoc main2_#t~ret9#1;havoc main2_#t~ret10#1; {31#false} is VALID [2022-02-20 19:31:19,397 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#false} assume !~fp.lt~DOUBLE(~convertFLOATToDOUBLE(currentRoundingMode, main2_~x~1#1), ~to_fp~DOUBLE(currentRoundingMode, 0.1)); {31#false} is VALID [2022-02-20 19:31:19,398 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-02-20 19:31:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 19:31:19,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 19:31:19,401 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 19:31:19,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552146258] [2022-02-20 19:31:19,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552146258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:31:19,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:31:19,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:31:19,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97368870] [2022-02-20 19:31:19,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:31:19,414 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 [2022-02-20 19:31:19,415 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:31:19,417 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 19:31:21,427 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:31:21,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 19:31:21,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 19:31:21,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 19:31:21,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 19:31:21,449 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) [2022-02-20 19:31:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:28,282 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-02-20 19:31:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 19:31:28,283 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 [2022-02-20 19:31:28,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:31:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 19:31:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:28,289 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 19:31:28,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:28,293 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 57 transitions. [2022-02-20 19:31:32,300 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:31:32,306 INFO L225 Difference]: With dead ends: 47 [2022-02-20 19:31:32,307 INFO L226 Difference]: Without dead ends: 19 [2022-02-20 19:31:32,309 INFO L932 BasicCegarLoop]: 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 [2022-02-20 19:31:32,312 INFO L933 BasicCegarLoop]: 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 [2022-02-20 19:31:32,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:31:32,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-02-20 19:31:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-02-20 19:31:32,334 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:31:32,334 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second 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) [2022-02-20 19:31:32,335 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second 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) [2022-02-20 19:31:32,335 INFO L87 Difference]: Start difference. First operand 19 states. Second 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) [2022-02-20 19:31:32,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:32,337 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:32,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:32,338 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:32,338 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 19 states. [2022-02-20 19:31:32,339 INFO L87 Difference]: Start difference. First 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) Second operand 19 states. [2022-02-20 19:31:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:32,340 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:32,340 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:32,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:32,341 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:32,341 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:31:32,341 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:31:32,342 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) [2022-02-20 19:31:32,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-02-20 19:31:32,344 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-02-20 19:31:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:31:32,344 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-02-20 19:31:32,345 INFO L471 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) [2022-02-20 19:31:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:32,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:32,345 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:32,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:32,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-02-20 19:31:32,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 19:31:32,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:32,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:32,563 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-02-20 19:31:32,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 19:31:32,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83612201] [2022-02-20 19:31:32,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:32,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 19:31:32,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 19:31:32,566 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) [2022-02-20 19:31:32,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process