./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_2+newton_1_3.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_3.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 b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 19:30:59,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 19:30:59,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 19:30:59,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 19:30:59,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 19:30:59,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 19:30:59,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 19:30:59,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 19:30:59,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 19:30:59,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 19:30:59,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 19:30:59,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 19:30:59,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 19:30:59,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 19:30:59,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 19:30:59,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 19:30:59,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 19:30:59,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 19:30:59,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 19:30:59,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 19:30:59,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 19:30:59,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 19:30:59,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 19:30:59,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 19:30:59,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 19:30:59,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 19:30:59,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 19:30:59,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 19:30:59,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 19:30:59,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 19:30:59,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 19:30:59,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 19:30:59,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 19:30:59,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 19:30:59,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 19:30:59,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 19:30:59,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 19:30:59,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 19:30:59,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 19:30:59,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 19:30:59,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 19:30:59,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 19:30:59,807 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 19:30:59,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 19:30:59,808 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 19:30:59,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 19:30:59,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 19:30:59,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 19:30:59,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 19:30:59,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 19:30:59,809 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 19:30:59,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 19:30:59,809 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 19:30:59,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 19:30:59,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 19:30:59,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 19:30:59,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 19:30:59,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 19:30:59,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 19:30:59,811 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 19:30:59,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 19:30:59,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 19:30:59,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 19:30:59,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 19:30:59,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 19:30:59,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 19:30:59,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:30:59,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 19:30:59,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 19:30:59,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 19:30:59,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 19:30:59,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 19:30:59,814 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 19:30:59,815 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 19:30:59,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 19:30:59,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 [2022-02-20 19:30:59,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 19:30:59,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 19:30:59,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 19:30:59,997 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 19:30:59,998 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 19:30:59,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-02-20 19:31:00,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8298eff29/bb778ad4d7ed4abeafe666205dcdf5c5/FLAG852585be2 [2022-02-20 19:31:00,380 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 19:31:00,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-02-20 19:31:00,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8298eff29/bb778ad4d7ed4abeafe666205dcdf5c5/FLAG852585be2 [2022-02-20 19:31:00,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8298eff29/bb778ad4d7ed4abeafe666205dcdf5c5 [2022-02-20 19:31:00,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 19:31:00,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 19:31:00,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:00,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 19:31:00,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 19:31:00,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89d53db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00, skipping insertion in model container [2022-02-20 19:31:00,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 19:31:00,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 19:31:00,574 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_3.i[1226,1239] [2022-02-20 19:31:00,615 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_3.i[2820,2833] [2022-02-20 19:31:00,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:00,621 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 19:31:00,629 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_3.i[1226,1239] [2022-02-20 19:31:00,636 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_3.i[2820,2833] [2022-02-20 19:31:00,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:00,654 INFO L208 MainTranslator]: Completed translation [2022-02-20 19:31:00,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00 WrapperNode [2022-02-20 19:31:00,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:00,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:00,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 19:31:00,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 19:31:00,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,699 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2022-02-20 19:31:00,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:00,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 19:31:00,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 19:31:00,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 19:31:00,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 19:31:00,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 19:31:00,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 19:31:00,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 19:31:00,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (1/1) ... [2022-02-20 19:31:00,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:00,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 19:31:00,751 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 19:31:00,753 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 19:31:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 19:31:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 19:31:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 19:31:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 19:31:00,835 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 19:31:00,837 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 19:31:01,077 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 19:31:01,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 19:31:01,081 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 19:31:01,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:01 BoogieIcfgContainer [2022-02-20 19:31:01,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 19:31:01,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 19:31:01,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 19:31:01,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 19:31:01,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:31:00" (1/3) ... [2022-02-20 19:31:01,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f6ee3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:01, skipping insertion in model container [2022-02-20 19:31:01,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:00" (2/3) ... [2022-02-20 19:31:01,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f6ee3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:01, skipping insertion in model container [2022-02-20 19:31:01,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:01" (3/3) ... [2022-02-20 19:31:01,096 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_3.i [2022-02-20 19:31:01,099 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 19:31:01,099 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 19:31:01,136 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 19:31:01,144 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 19:31:01,144 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 19:31:01,163 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 19:31:01,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:01,167 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:01,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:01,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:01,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:01,172 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-02-20 19:31:01,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:31:01,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948432445] [2022-02-20 19:31:01,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:01,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:31:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:01,283 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 19:31:01,283 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 19:31:01,283 INFO L290 TraceCheckUtils]: 2: Hoare triple {30#true} assume !(0 != main_#t~nondet11#1);havoc main_#t~nondet11#1;assume { :begin_inline_main2 } true;havoc main2_#res#1;havoc main2_#t~nondet8#1, main2_#t~ret9#1, main2_#t~ret10#1, main2_~IN~0#1, main2_~x~1#1;main2_~IN~0#1 := main2_#t~nondet8#1;havoc main2_#t~nondet8#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryFLOATComparisonOperation(main2_~IN~0#1, ~someUnaryFLOAToperation(0.6)) && ~someBinaryFLOATComparisonOperation(main2_~IN~0#1, 0.6) 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 19:31:01,284 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 19:31:01,285 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 19:31:01,285 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 19:31:01,286 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 19:31:01,286 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#false} assume !~someBinaryDOUBLEComparisonOperation(main2_~x~1#1, 0.1); {31#false} is VALID [2022-02-20 19:31:01,286 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-02-20 19:31:01,287 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 19:31:01,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:31:01,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948432445] [2022-02-20 19:31:01,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948432445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:31:01,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:31:01,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:31:01,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971935010] [2022-02-20 19:31:01,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:31:01,295 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 19:31:01,296 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:31:01,298 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 19:31:01,306 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 19:31:01,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 19:31:01,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:31:01,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 19:31:01,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 19:31:01,321 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 19:31:01,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:01,347 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-02-20 19:31:01,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 19:31:01,348 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 19:31:01,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:31:01,349 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 19:31:01,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:01,353 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 19:31:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:01,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 57 transitions. [2022-02-20 19:31:01,395 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 19:31:01,400 INFO L225 Difference]: With dead ends: 47 [2022-02-20 19:31:01,400 INFO L226 Difference]: Without dead ends: 19 [2022-02-20 19:31:01,402 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 19:31:01,404 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 19:31:01,404 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 19:31:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-02-20 19:31:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-02-20 19:31:01,420 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:31:01,421 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 19:31:01,421 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 19:31:01,422 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 19:31:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:01,423 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:01,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:01,424 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:01,424 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 19:31:01,424 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 19:31:01,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:01,426 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:01,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:01,426 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:01,426 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:31:01,427 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:31:01,427 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 19:31:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-02-20 19:31:01,429 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-02-20 19:31:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:31:01,429 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-02-20 19:31:01,429 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 19:31:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:01,430 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:01,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:01,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 19:31:01,431 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:01,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:01,431 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-02-20 19:31:01,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:31:01,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739002944] [2022-02-20 19:31:01,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:01,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:31:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 19:31:01,446 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 19:31:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 19:31:01,463 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 19:31:01,463 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 19:31:01,480 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 19:31:01,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 19:31:01,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 19:31:01,484 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 19:31:01,486 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 19:31:01,501 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 19:31:01,501 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 19:31:01,501 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 19:31:01,501 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 19:31:01,501 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 19:31:01,502 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 19:31:01,502 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2022-02-20 19:31:01,502 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2022-02-20 19:31:01,502 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2022-02-20 19:31:01,503 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L101-2 has no Hoare annotation [2022-02-20 19:31:01,504 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L55-2 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2022-02-20 19:31:01,505 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 19:31:01,506 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 19:31:01,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 07:31:01 BoogieIcfgContainer [2022-02-20 19:31:01,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 19:31:01,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 19:31:01,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 19:31:01,508 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 19:31:01,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:01" (3/4) ... [2022-02-20 19:31:01,510 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 19:31:01,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 19:31:01,512 INFO L158 Benchmark]: Toolchain (without parser) took 1107.04ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 65.5MB in the beginning and 74.3MB in the end (delta: -8.8MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-02-20 19:31:01,513 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 51.3MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 19:31:01,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.37ms. Allocated memory is still 94.4MB. Free memory was 65.3MB in the beginning and 68.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-02-20 19:31:01,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.32ms. Allocated memory is still 94.4MB. Free memory was 68.6MB in the beginning and 66.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 19:31:01,517 INFO L158 Benchmark]: Boogie Preprocessor took 28.69ms. Allocated memory is still 94.4MB. Free memory was 66.2MB in the beginning and 65.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 19:31:01,518 INFO L158 Benchmark]: RCFGBuilder took 352.18ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 51.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 19:31:01,518 INFO L158 Benchmark]: TraceAbstraction took 424.14ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 51.4MB in the beginning and 74.9MB in the end (delta: -23.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-02-20 19:31:01,520 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 123.7MB. Free memory was 74.9MB in the beginning and 74.3MB in the end (delta: 570.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 19:31:01,526 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 0.14ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 51.3MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.37ms. Allocated memory is still 94.4MB. Free memory was 65.3MB in the beginning and 68.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.32ms. Allocated memory is still 94.4MB. Free memory was 68.6MB in the beginning and 66.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.69ms. Allocated memory is still 94.4MB. Free memory was 66.2MB in the beginning and 65.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.18ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 51.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 424.14ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 51.4MB in the beginning and 74.9MB in the end (delta: -23.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 123.7MB. Free memory was 74.9MB in the beginning and 74.3MB in the end (delta: 570.4kB). 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 > -0.6f && IN < 0.6f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [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: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 19:31:01,574 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_3.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 b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 19:31:03,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 19:31:03,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 19:31:03,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 19:31:03,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 19:31:03,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 19:31:03,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 19:31:03,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 19:31:03,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 19:31:03,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 19:31:03,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 19:31:03,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 19:31:03,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 19:31:03,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 19:31:03,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 19:31:03,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 19:31:03,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 19:31:03,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 19:31:03,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 19:31:03,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 19:31:03,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 19:31:03,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 19:31:03,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 19:31:03,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 19:31:03,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 19:31:03,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 19:31:03,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 19:31:03,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 19:31:03,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 19:31:03,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 19:31:03,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 19:31:03,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 19:31:03,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 19:31:03,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 19:31:03,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 19:31:03,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 19:31:03,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 19:31:03,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 19:31:03,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 19:31:03,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 19:31:03,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 19:31:03,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 19:31:03,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 19:31:03,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 19:31:03,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 19:31:03,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 19:31:03,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 19:31:03,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 19:31:03,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 19:31:03,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 19:31:03,143 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 19:31:03,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 19:31:03,143 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 19:31:03,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 19:31:03,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 19:31:03,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 19:31:03,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 19:31:03,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 19:31:03,144 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 19:31:03,144 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 19:31:03,145 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 19:31:03,145 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 19:31:03,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 19:31:03,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 19:31:03,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 19:31:03,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 19:31:03,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 19:31:03,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 19:31:03,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:03,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 19:31:03,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 19:31:03,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 19:31:03,147 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 19:31:03,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 19:31:03,147 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 19:31:03,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 19:31:03,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 19:31:03,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 19:31:03,148 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 [2022-02-20 19:31:03,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 19:31:03,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 19:31:03,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 19:31:03,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 19:31:03,422 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 19:31:03,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-02-20 19:31:03,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0144cac8/cf3323a4fac74900b9d427edfed227dc/FLAG17618671b [2022-02-20 19:31:03,855 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 19:31:03,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-02-20 19:31:03,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0144cac8/cf3323a4fac74900b9d427edfed227dc/FLAG17618671b [2022-02-20 19:31:03,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0144cac8/cf3323a4fac74900b9d427edfed227dc [2022-02-20 19:31:03,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 19:31:03,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 19:31:03,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:03,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 19:31:03,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 19:31:03,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:03" (1/1) ... [2022-02-20 19:31:03,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c22384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:03, skipping insertion in model container [2022-02-20 19:31:03,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:31:03" (1/1) ... [2022-02-20 19:31:03,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 19:31:03,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 19:31:04,031 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_3.i[1226,1239] [2022-02-20 19:31:04,089 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_3.i[2820,2833] [2022-02-20 19:31:04,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:04,113 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 19:31:04,124 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_3.i[1226,1239] [2022-02-20 19:31:04,142 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_3.i[2820,2833] [2022-02-20 19:31:04,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:31:04,156 INFO L208 MainTranslator]: Completed translation [2022-02-20 19:31:04,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04 WrapperNode [2022-02-20 19:31:04,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 19:31:04,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:04,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 19:31:04,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 19:31:04,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,188 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2022-02-20 19:31:04,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 19:31:04,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 19:31:04,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 19:31:04,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 19:31:04,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 19:31:04,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 19:31:04,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 19:31:04,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 19:31:04,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (1/1) ... [2022-02-20 19:31:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:31:04,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 19:31:04,230 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 19:31:04,236 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 19:31:04,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 19:31:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 19:31:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 19:31:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 19:31:04,302 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 19:31:04,303 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 19:31:10,065 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 19:31:10,070 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 19:31:10,070 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 19:31:10,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:10 BoogieIcfgContainer [2022-02-20 19:31:10,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 19:31:10,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 19:31:10,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 19:31:10,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 19:31:10,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:31:03" (1/3) ... [2022-02-20 19:31:10,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142f4e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:10, skipping insertion in model container [2022-02-20 19:31:10,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:31:04" (2/3) ... [2022-02-20 19:31:10,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142f4e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:31:10, skipping insertion in model container [2022-02-20 19:31:10,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:31:10" (3/3) ... [2022-02-20 19:31:10,086 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_3.i [2022-02-20 19:31:10,089 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 19:31:10,089 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 19:31:10,114 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 19:31:10,119 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 19:31:10,120 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 19:31:10,128 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 19:31:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:10,131 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:10,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:10,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:10,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:10,135 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-02-20 19:31:10,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 19:31:10,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197784459] [2022-02-20 19:31:10,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:10,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 19:31:10,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 19:31:10,147 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 19:31:10,148 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 19:31:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:10,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 19:31:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:31:10,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 19:31:11,041 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 19:31:11,042 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 19:31:11,042 INFO L290 TraceCheckUtils]: 2: Hoare triple {30#true} assume !(0bv32 != main_#t~nondet11#1);havoc main_#t~nondet11#1;assume { :begin_inline_main2 } true;havoc main2_#res#1;havoc main2_#t~nondet8#1, main2_#t~ret9#1, main2_#t~ret10#1, main2_~IN~0#1, main2_~x~1#1;main2_~IN~0#1 := main2_#t~nondet8#1;havoc main2_#t~nondet8#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.gt~FLOAT(main2_~IN~0#1, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 0.6))) && ~fp.lt~FLOAT(main2_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 0.6)) 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 19:31:11,043 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 19:31:11,043 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 19:31:11,043 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 19:31:11,043 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 19:31:11,044 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 19:31:11,044 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-02-20 19:31:11,044 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 19:31:11,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 19:31:11,045 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 19:31:11,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197784459] [2022-02-20 19:31:11,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197784459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:31:11,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:31:11,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:31:11,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502222363] [2022-02-20 19:31:11,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:31:11,050 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 19:31:11,051 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:31:11,053 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 19:31:12,960 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 19:31:12,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 19:31:12,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 19:31:12,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 19:31:12,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 19:31:12,996 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 19:31:19,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:19,766 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-02-20 19:31:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 19:31:19,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 19:31:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:31:19,768 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 19:31:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:19,779 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 19:31:19,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2022-02-20 19:31:19,787 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 57 transitions. [2022-02-20 19:31:23,734 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 19:31:23,740 INFO L225 Difference]: With dead ends: 47 [2022-02-20 19:31:23,740 INFO L226 Difference]: Without dead ends: 19 [2022-02-20 19:31:23,742 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 19:31:23,744 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 19:31:23,745 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 19:31:23,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-02-20 19:31:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-02-20 19:31:23,760 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:31:23,761 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 19:31:23,761 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 19:31:23,761 INFO L87 Difference]: Start difference. First operand 19 states. Second operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 19:31:23,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:23,763 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:23,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:23,763 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:23,764 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 19:31:23,764 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 19:31:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:31:23,765 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-02-20 19:31:23,765 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:23,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:31:23,766 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:31:23,766 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:31:23,766 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:31:23,766 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 19:31:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-02-20 19:31:23,770 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-02-20 19:31:23,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:31:23,770 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-02-20 19:31:23,770 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 19:31:23,770 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-02-20 19:31:23,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 19:31:23,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:31:23,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:31:23,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-02-20 19:31:23,989 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 19:31:23,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:31:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:31:23,990 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-02-20 19:31:23,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 19:31:23,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731258209] [2022-02-20 19:31:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:31:23,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 19:31:23,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 19:31:23,993 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 19:31:23,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process