./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_2+newton_1_7.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_7.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 b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 19:31:30,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 19:31:30,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 19:31:30,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 19:31:30,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 19:31:30,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 19:31:30,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 19:31:30,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 19:31:30,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 19:31:30,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 19:31:30,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 19:31:30,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 19:31:30,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 19:31:30,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 19:31:30,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 19:31:30,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 19:31:30,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 19:31:30,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 19:31:30,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 19:31:30,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 19:31:30,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 19:31:30,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 19:31:30,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 19:31:30,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 19:31:30,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 19:31:30,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 19:31:30,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 19:31:30,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 19:31:30,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 19:31:30,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 19:31:30,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 19:31:30,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 19:31:30,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 19:31:30,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 19:31:30,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 19:31:30,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 19:31:30,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 19:31:30,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 19:31:30,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 19:31:30,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 19:31:30,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 19:31:30,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 19:31:30,777 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 19:31:30,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 19:31:30,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 19:31:30,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 19:31:30,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 19:31:30,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 19:31:30,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 19:31:30,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 19:31:30,780 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 19:31:30,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 19:31:30,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 19:31:30,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 19:31:30,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 19:31:30,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 19:31:30,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 19:31:30,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 19:31:30,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 19:31:30,782 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 19:31:30,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 19:31:30,782 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 19:31:30,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 19:31:30,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 19:31:30,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 19:31:30,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 19:31:30,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:30,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 19:31:30,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 19:31:30,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 19:31:30,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 19:31:30,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 19:31:30,784 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 19:31:30,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 19:31:30,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 19:31:30,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d [2022-02-20 19:31:31,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 19:31:31,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 19:31:31,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 19:31:31,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 19:31:31,034 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 19:31:31,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2022-02-20 19:31:31,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9432cbf3e/bb1022dd85da46abb401968a18dd10d3/FLAG237a6611f [2022-02-20 19:31:31,477 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 19:31:31,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2022-02-20 19:31:31,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9432cbf3e/bb1022dd85da46abb401968a18dd10d3/FLAG237a6611f [2022-02-20 19:31:31,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9432cbf3e/bb1022dd85da46abb401968a18dd10d3 [2022-02-20 19:31:31,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 19:31:31,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 19:31:31,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:31,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 19:31:31,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 19:31:31,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:31" (1/1) ... [2022-02-20 19:31:31,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640093d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:31, skipping insertion in model container [2022-02-20 19:31:31,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:31" (1/1) ... [2022-02-20 19:31:31,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 19:31:31,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 19:31:32,042 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_7.i[1226,1239] [2022-02-20 19:31:32,064 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_7.i[2820,2833] [2022-02-20 19:31:32,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:32,071 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 19:31:32,081 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_7.i[1226,1239] [2022-02-20 19:31:32,094 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_7.i[2820,2833] [2022-02-20 19:31:32,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:32,105 INFO L208 MainTranslator]: Completed translation [2022-02-20 19:31:32,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32 WrapperNode [2022-02-20 19:31:32,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:32,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:32,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 19:31:32,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 19:31:32,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,168 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2022-02-20 19:31:32,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:32,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 19:31:32,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 19:31:32,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 19:31:32,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 19:31:32,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 19:31:32,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 19:31:32,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 19:31:32,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (1/1) ... [2022-02-20 19:31:32,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:32,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 19:31:32,239 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 19:31:32,265 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 19:31:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 19:31:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 19:31:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 19:31:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 19:31:32,333 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 19:31:32,335 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 19:31:32,490 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 19:31:32,494 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 19:31:32,494 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 19:31:32,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:32 BoogieIcfgContainer [2022-02-20 19:31:32,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 19:31:32,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 19:31:32,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 19:31:32,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 19:31:32,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:31:31" (1/3) ... [2022-02-20 19:31:32,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430b46f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:32, skipping insertion in model container [2022-02-20 19:31:32,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:32" (2/3) ... [2022-02-20 19:31:32,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430b46f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:32, skipping insertion in model container [2022-02-20 19:31:32,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:32" (3/3) ... [2022-02-20 19:31:32,515 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_7.i [2022-02-20 19:31:32,519 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 19:31:32,519 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 19:31:32,570 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 19:31:32,575 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 19:31:32,591 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 19:31:32,602 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 19:31:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:32,606 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:32,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:32,607 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:32,610 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-02-20 19:31:32,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:31:32,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937729115] [2022-02-20 19:31:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:32,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:31:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:32,797 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 19:31:32,797 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 19:31:32,798 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(1.4)) && ~someBinaryFLOATComparisonOperation(main2_~IN~0#1, 1.4) 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 19:31:32,799 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 19:31:32,799 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 19:31:32,800 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 19:31:32,801 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 19:31:32,801 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#false} assume !~someBinaryDOUBLEComparisonOperation(main2_~x~1#1, 0.1); {31#false} is VALID [2022-02-20 19:31:32,802 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-02-20 19:31:32,803 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 19:31:32,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:31:32,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937729115] [2022-02-20 19:31:32,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937729115] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:31:32,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:31:32,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:31:32,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919295074] [2022-02-20 19:31:32,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:31:32,809 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 19:31:32,811 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:31:32,814 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 19:31:32,832 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 19:31:32,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 19:31:32,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:31:32,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 19:31:32,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 19:31:32,852 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 19:31:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:32,892 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-02-20 19:31:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 19:31:32,893 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 19:31:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:31:32,894 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 19:31:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:32,903 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 19:31:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:32,908 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 57 transitions. [2022-02-20 19:31:32,967 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 19:31:32,974 INFO L225 Difference]: With dead ends: 47 [2022-02-20 19:31:32,974 INFO L226 Difference]: Without dead ends: 19 [2022-02-20 19:31:32,981 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 19:31:32,984 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 19:31:32,986 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 19:31:32,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-02-20 19:31:33,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-02-20 19:31:33,008 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:31:33,008 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 19:31:33,009 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 19:31:33,010 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 19:31:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:33,019 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:33,019 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:33,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:33,020 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:33,020 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 19:31:33,020 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 19:31:33,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:33,021 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:33,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:33,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:33,021 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:31:33,022 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:31:33,022 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 19:31:33,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-02-20 19:31:33,023 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-02-20 19:31:33,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:31:33,024 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-02-20 19:31:33,024 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 19:31:33,024 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:33,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:33,024 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:33,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:33,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 19:31:33,025 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:33,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:33,027 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-02-20 19:31:33,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:31:33,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919142440] [2022-02-20 19:31:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:33,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:31:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 19:31:33,058 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 19:31:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 19:31:33,094 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 19:31:33,094 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 19:31:33,096 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 19:31:33,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 19:31:33,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 19:31:33,103 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 19:31:33,104 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 19:31:33,117 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2022-02-20 19:31:33,118 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2022-02-20 19:31:33,119 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L101-2 has no Hoare annotation [2022-02-20 19:31:33,120 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L55-2 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 19:31:33,121 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2022-02-20 19:31:33,122 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 19:31:33,122 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 19:31:33,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 07:31:33 BoogieIcfgContainer [2022-02-20 19:31:33,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 19:31:33,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 19:31:33,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 19:31:33,123 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 19:31:33,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:32" (3/4) ... [2022-02-20 19:31:33,125 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 19:31:33,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 19:31:33,126 INFO L158 Benchmark]: Toolchain (without parser) took 1209.59ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 77.9MB in the beginning and 131.2MB in the end (delta: -53.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-02-20 19:31:33,127 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 19:31:33,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.29ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 81.1MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 19:31:33,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.96ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 19:31:33,128 INFO L158 Benchmark]: Boogie Preprocessor took 21.79ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 77.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 19:31:33,128 INFO L158 Benchmark]: RCFGBuilder took 304.05ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 64.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 19:31:33,129 INFO L158 Benchmark]: TraceAbstraction took 625.97ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 64.2MB in the beginning and 131.7MB in the end (delta: -67.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-02-20 19:31:33,129 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 176.2MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 19:31:33,130 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 0.15ms. Allocated memory is still 107.0MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.29ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 81.1MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.96ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.79ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 77.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.05ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 64.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 625.97ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 64.2MB in the beginning and 131.7MB in the end (delta: -67.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 176.2MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [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: 0.5s, 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 19:31:33,155 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_7.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 b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 19:31:34,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 19:31:34,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 19:31:34,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 19:31:34,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 19:31:34,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 19:31:34,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 19:31:35,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 19:31:35,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 19:31:35,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 19:31:35,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 19:31:35,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 19:31:35,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 19:31:35,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 19:31:35,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 19:31:35,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 19:31:35,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 19:31:35,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 19:31:35,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 19:31:35,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 19:31:35,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 19:31:35,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 19:31:35,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 19:31:35,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 19:31:35,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 19:31:35,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 19:31:35,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 19:31:35,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 19:31:35,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 19:31:35,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 19:31:35,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 19:31:35,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 19:31:35,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 19:31:35,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 19:31:35,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 19:31:35,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 19:31:35,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 19:31:35,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 19:31:35,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 19:31:35,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 19:31:35,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 19:31:35,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 19:31:35,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 19:31:35,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 19:31:35,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 19:31:35,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 19:31:35,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 19:31:35,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 19:31:35,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 19:31:35,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 19:31:35,065 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 19:31:35,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 19:31:35,065 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 19:31:35,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 19:31:35,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 19:31:35,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 19:31:35,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 19:31:35,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 19:31:35,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 19:31:35,066 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 19:31:35,066 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 19:31:35,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 19:31:35,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 19:31:35,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 19:31:35,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 19:31:35,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 19:31:35,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 19:31:35,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 19:31:35,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:35,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 19:31:35,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 19:31:35,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 19:31:35,078 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 19:31:35,078 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 19:31:35,078 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 19:31:35,078 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 19:31:35,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 19:31:35,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 19:31:35,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d [2022-02-20 19:31:35,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 19:31:35,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 19:31:35,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 19:31:35,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 19:31:35,364 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 19:31:35,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2022-02-20 19:31:35,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334df1038/b248bce17ff0409483393f7147429e95/FLAG0a78374f0 [2022-02-20 19:31:35,792 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 19:31:35,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2022-02-20 19:31:35,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334df1038/b248bce17ff0409483393f7147429e95/FLAG0a78374f0 [2022-02-20 19:31:36,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334df1038/b248bce17ff0409483393f7147429e95 [2022-02-20 19:31:36,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 19:31:36,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 19:31:36,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:36,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 19:31:36,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 19:31:36,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0ceaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36, skipping insertion in model container [2022-02-20 19:31:36,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 19:31:36,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 19:31:36,379 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_7.i[1226,1239] [2022-02-20 19:31:36,399 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_7.i[2820,2833] [2022-02-20 19:31:36,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:36,408 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 19:31:36,467 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_7.i[1226,1239] [2022-02-20 19:31:36,487 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_7.i[2820,2833] [2022-02-20 19:31:36,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:36,504 INFO L208 MainTranslator]: Completed translation [2022-02-20 19:31:36,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36 WrapperNode [2022-02-20 19:31:36,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:36,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:36,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 19:31:36,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 19:31:36,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,534 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2022-02-20 19:31:36,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:36,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 19:31:36,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 19:31:36,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 19:31:36,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 19:31:36,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 19:31:36,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 19:31:36,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 19:31:36,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (1/1) ... [2022-02-20 19:31:36,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:36,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 19:31:36,617 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 19:31:36,643 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 19:31:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 19:31:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 19:31:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 19:31:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 19:31:36,716 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 19:31:36,718 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 19:31:42,764 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 19:31:42,769 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 19:31:42,770 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 19:31:42,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:42 BoogieIcfgContainer [2022-02-20 19:31:42,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 19:31:42,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 19:31:42,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 19:31:42,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 19:31:42,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:31:36" (1/3) ... [2022-02-20 19:31:42,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2034635d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:42, skipping insertion in model container [2022-02-20 19:31:42,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:36" (2/3) ... [2022-02-20 19:31:42,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2034635d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:42, skipping insertion in model container [2022-02-20 19:31:42,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:42" (3/3) ... [2022-02-20 19:31:42,776 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_7.i [2022-02-20 19:31:42,779 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 19:31:42,779 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 19:31:42,817 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 19:31:42,833 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 19:31:42,835 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 19:31:42,847 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 19:31:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:42,850 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:42,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:42,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:42,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:42,857 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-02-20 19:31:42,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 19:31:42,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365298654] [2022-02-20 19:31:42,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:42,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 19:31:42,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 19:31:42,870 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 19:31:42,884 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 19:31:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:43,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 19:31:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:43,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 19:31:43,870 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 19:31:43,870 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 19:31:43,871 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, 1.4))) && ~fp.lt~FLOAT(main2_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.4)) 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 19:31:43,871 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 19:31:43,872 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 19:31:43,872 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 19:31:43,872 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 19:31:43,872 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 19:31:43,872 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-02-20 19:31:43,873 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 19:31:43,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 19:31:43,874 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 19:31:43,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365298654] [2022-02-20 19:31:43,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365298654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:31:43,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:31:43,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:31:43,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843100714] [2022-02-20 19:31:43,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:31:43,879 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 19:31:43,880 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:31:43,882 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 19:31:45,899 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 19:31:45,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 19:31:45,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 19:31:45,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 19:31:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 19:31:45,919 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 19:31:52,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:52,744 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-02-20 19:31:52,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 19:31:52,745 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 19:31:52,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:31:52,746 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 19:31:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:52,749 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 19:31:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:52,753 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 57 transitions. [2022-02-20 19:31:56,921 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 19:31:56,926 INFO L225 Difference]: With dead ends: 47 [2022-02-20 19:31:56,926 INFO L226 Difference]: Without dead ends: 19 [2022-02-20 19:31:56,928 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 19:31:56,930 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 19:31:56,930 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 19:31:56,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-02-20 19:31:56,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-02-20 19:31:56,946 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:31:56,946 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 19:31:56,947 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 19:31:56,947 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 19:31:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:56,948 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:56,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:56,949 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:56,949 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 19:31:56,949 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 19:31:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:56,950 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:56,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:56,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:56,950 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:31:56,951 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:31:56,951 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 19:31:56,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-02-20 19:31:56,960 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-02-20 19:31:56,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:31:56,960 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-02-20 19:31:56,961 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 19:31:56,961 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:56,961 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:56,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:56,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 19:31:57,188 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 19:31:57,188 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:57,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:57,189 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-02-20 19:31:57,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 19:31:57,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868277174] [2022-02-20 19:31:57,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:57,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 19:31:57,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 19:31:57,196 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 19:31:57,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process