./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float22.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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 06:13:16,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:13:16,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:13:16,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:13:16,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:13:16,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:13:16,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:13:16,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:13:16,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:13:16,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:13:16,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:13:16,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:13:16,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:13:16,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:13:16,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:13:16,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:13:16,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:13:16,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:13:16,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:13:16,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:13:16,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:13:16,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:13:16,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:13:16,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:13:16,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:13:16,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:13:16,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:13:16,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:13:16,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:13:16,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:13:16,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:13:16,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:13:16,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:13:16,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:13:16,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:13:16,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:13:16,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:13:16,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:13:16,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:13:16,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:13:16,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:13:16,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 06:13:16,739 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:13:16,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:13:16,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:13:16,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:13:16,744 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:13:16,744 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:13:16,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:13:16,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:13:16,745 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:13:16,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:13:16,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:13:16,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 06:13:16,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:13:16,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:13:16,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:13:16,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:13:16,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:13:16,747 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:13:16,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:13:16,747 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:13:16,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:13:16,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:13:16,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:13:16,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:13:16,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:13:16,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:13:16,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:13:16,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:13:16,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 06:13:16,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 06:13:16,749 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:13:16,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:13:16,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:13:16,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:13:16,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-12-17 06:13:16,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:13:17,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:13:17,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:13:17,020 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:13:17,021 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:13:17,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-17 06:13:17,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca76cf2a/1db88b2a3f97460583534748b98d153d/FLAGee995537c [2021-12-17 06:13:17,407 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:13:17,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-17 06:13:17,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca76cf2a/1db88b2a3f97460583534748b98d153d/FLAGee995537c [2021-12-17 06:13:17,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca76cf2a/1db88b2a3f97460583534748b98d153d [2021-12-17 06:13:17,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:13:17,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:13:17,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:13:17,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:13:17,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:13:17,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:13:17" (1/1) ... [2021-12-17 06:13:17,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c56f1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:17, skipping insertion in model container [2021-12-17 06:13:17,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:13:17" (1/1) ... [2021-12-17 06:13:17,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:13:17,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:13:17,960 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-17 06:13:17,973 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-17 06:13:17,974 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-17 06:13:17,976 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-17 06:13:17,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:13:17,985 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:13:18,007 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-17 06:13:18,009 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-17 06:13:18,010 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-17 06:13:18,011 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-17 06:13:18,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:13:18,022 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:13:18,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18 WrapperNode [2021-12-17 06:13:18,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:13:18,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:13:18,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:13:18,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:13:18,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,052 INFO L137 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-12-17 06:13:18,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:13:18,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:13:18,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:13:18,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:13:18,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:13:18,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:13:18,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:13:18,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:13:18,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (1/1) ... [2021-12-17 06:13:18,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:13:18,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:13:18,115 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) [2021-12-17 06:13:18,117 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 [2021-12-17 06:13:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:13:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-12-17 06:13:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-12-17 06:13:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 06:13:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 06:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-17 06:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 06:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-17 06:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-12-17 06:13:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-12-17 06:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:13:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:13:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 06:13:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 06:13:18,260 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:13:18,261 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:13:18,493 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:13:18,498 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:13:18,498 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 06:13:18,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:13:18 BoogieIcfgContainer [2021-12-17 06:13:18,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:13:18,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:13:18,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:13:18,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:13:18,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:13:17" (1/3) ... [2021-12-17 06:13:18,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ba2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:13:18, skipping insertion in model container [2021-12-17 06:13:18,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:18" (2/3) ... [2021-12-17 06:13:18,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ba2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:13:18, skipping insertion in model container [2021-12-17 06:13:18,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:13:18" (3/3) ... [2021-12-17 06:13:18,505 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-12-17 06:13:18,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:13:18,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-17 06:13:18,539 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:13:18,543 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 [2021-12-17 06:13:18,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-17 06:13:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 06:13:18,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-17 06:13:18,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:13:18,557 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:13:18,558 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 06:13:18,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:13:18,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-12-17 06:13:18,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:13:18,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104501647] [2021-12-17 06:13:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:13:18,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:13:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:13:18,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 06:13:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:13:18,726 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 06:13:18,727 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 06:13:18,728 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-12-17 06:13:18,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-12-17 06:13:18,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-12-17 06:13:18,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-12-17 06:13:18,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 06:13:18,733 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-17 06:13:18,735 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 06:13:18,739 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,740 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-17 06:13:18,740 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,740 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-17 06:13:18,740 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,740 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-17 06:13:18,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,741 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-17 06:13:18,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,741 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-17 06:13:18,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,741 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-17 06:13:18,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-12-17 06:13:18,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-12-17 06:13:18,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-12-17 06:13:18,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,742 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-17 06:13:18,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,743 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-17 06:13:18,743 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,743 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-17 06:13:18,743 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,743 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-17 06:13:18,743 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,744 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-17 06:13:18,744 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-17 06:13:18,744 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-17 06:13:18,744 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-12-17 06:13:18,744 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-12-17 06:13:18,744 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-12-17 06:13:18,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 06:13:18 BoogieIcfgContainer [2021-12-17 06:13:18,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 06:13:18,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 06:13:18,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 06:13:18,756 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 06:13:18,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:13:18" (3/4) ... [2021-12-17 06:13:18,759 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 06:13:18,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 06:13:18,760 INFO L158 Benchmark]: Toolchain (without parser) took 929.04ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.5MB in the beginning and 50.5MB in the end (delta: 4.0MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-12-17 06:13:18,760 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:13:18,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.75ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 54.1MB in the end (delta: 194.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 06:13:18,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.78ms. Allocated memory is still 79.7MB. Free memory was 54.1MB in the beginning and 52.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:13:18,761 INFO L158 Benchmark]: Boogie Preprocessor took 20.53ms. Allocated memory is still 79.7MB. Free memory was 52.2MB in the beginning and 50.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:13:18,762 INFO L158 Benchmark]: RCFGBuilder took 425.86ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 50.4MB in the beginning and 73.6MB in the end (delta: -23.1MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-12-17 06:13:18,762 INFO L158 Benchmark]: TraceAbstraction took 254.89ms. Allocated memory is still 96.5MB. Free memory was 73.1MB in the beginning and 50.5MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-17 06:13:18,762 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 96.5MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:13:18,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.75ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 54.1MB in the end (delta: 194.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.78ms. Allocated memory is still 79.7MB. Free memory was 54.1MB in the beginning and 52.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.53ms. Allocated memory is still 79.7MB. Free memory was 52.2MB in the beginning and 50.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.86ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 50.4MB in the beginning and 73.6MB in the end (delta: -23.1MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * TraceAbstraction took 254.89ms. Allocated memory is still 96.5MB. Free memory was 73.1MB in the beginning and 50.5MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 96.5MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 130. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; VAL [f1={5:0}, f2={6:0}] [L141] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [\old(index)=0, index=0, unknown-#res!f-unknown=57, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L141] RET, EXPR returnsStructure(0) VAL [f1={5:0}, f2={6:0}, returnsStructure(0)=57returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=0] [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [\old(index)=1, index=1, unknown-#res!f-unknown=59, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L142] RET, EXPR returnsStructure(1) VAL [f1={5:0}, f2={6:0}, returnsStructure(1)=0returnsStructure(1)=59returnsStructure(1)=0returnsStructure(1)=0] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [f1={5:0}, f1.ieee.negative=0, f2={6:0}, f2.ieee.negative=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [f1={5:0}, f2={6:0}] - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: 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 3 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-12-17 06:13:18,793 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 -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/floats-cbmc-regression/float22.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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 06:13:20,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:13:20,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:13:20,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:13:20,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:13:20,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:13:20,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:13:20,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:13:20,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:13:20,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:13:20,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:13:20,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:13:20,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:13:20,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:13:20,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:13:20,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:13:20,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:13:20,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:13:20,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:13:20,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:13:20,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:13:20,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:13:20,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:13:20,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:13:20,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:13:20,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:13:20,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:13:20,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:13:20,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:13:20,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:13:20,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:13:20,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:13:20,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:13:20,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:13:20,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:13:20,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:13:20,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:13:20,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:13:20,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:13:20,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:13:20,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:13:20,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 06:13:20,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:13:20,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:13:20,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:13:20,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:13:20,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:13:20,568 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:13:20,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:13:20,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:13:20,570 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:13:20,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:13:20,570 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:13:20,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:13:20,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:13:20,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:13:20,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:13:20,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:13:20,571 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 06:13:20,571 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 06:13:20,572 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 06:13:20,572 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:13:20,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:13:20,572 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:13:20,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:13:20,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:13:20,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:13:20,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:13:20,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:13:20,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:13:20,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:13:20,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:13:20,573 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 06:13:20,573 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 06:13:20,574 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:13:20,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:13:20,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:13:20,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:13:20,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 06:13:20,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-12-17 06:13:20,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:13:20,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:13:20,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:13:20,932 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:13:20,932 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:13:20,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-17 06:13:21,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc55faee/a259fd3ce8fb4c688effd401cf8a8931/FLAGa986716c0 [2021-12-17 06:13:21,423 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:13:21,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-17 06:13:21,434 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc55faee/a259fd3ce8fb4c688effd401cf8a8931/FLAGa986716c0 [2021-12-17 06:13:21,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc55faee/a259fd3ce8fb4c688effd401cf8a8931 [2021-12-17 06:13:21,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:13:21,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:13:21,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:13:21,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:13:21,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:13:21,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10495910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21, skipping insertion in model container [2021-12-17 06:13:21,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:13:21,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:13:21,648 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-17 06:13:21,657 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-17 06:13:21,658 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-17 06:13:21,661 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-17 06:13:21,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:13:21,673 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:13:21,724 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-17 06:13:21,730 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-17 06:13:21,732 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-17 06:13:21,736 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-17 06:13:21,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:13:21,753 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:13:21,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21 WrapperNode [2021-12-17 06:13:21,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:13:21,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:13:21,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:13:21,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:13:21,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,799 INFO L137 Inliner]: procedures = 24, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-12-17 06:13:21,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:13:21,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:13:21,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:13:21,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:13:21,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:13:21,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:13:21,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:13:21,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:13:21,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (1/1) ... [2021-12-17 06:13:21,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:13:21,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:13:21,865 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) [2021-12-17 06:13:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:13:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-12-17 06:13:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-12-17 06:13:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 06:13:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 06:13:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-17 06:13:21,903 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 [2021-12-17 06:13:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 06:13:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-12-17 06:13:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-12-17 06:13:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:13:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:13:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-17 06:13:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 06:13:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 06:13:21,963 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:13:21,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:13:22,121 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:13:22,125 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:13:22,125 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 06:13:22,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:13:22 BoogieIcfgContainer [2021-12-17 06:13:22,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:13:22,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:13:22,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:13:22,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:13:22,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:13:21" (1/3) ... [2021-12-17 06:13:22,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bc93bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:13:22, skipping insertion in model container [2021-12-17 06:13:22,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:13:21" (2/3) ... [2021-12-17 06:13:22,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bc93bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:13:22, skipping insertion in model container [2021-12-17 06:13:22,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:13:22" (3/3) ... [2021-12-17 06:13:22,148 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-12-17 06:13:22,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:13:22,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-17 06:13:22,224 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:13:22,230 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 [2021-12-17 06:13:22,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-17 06:13:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 06:13:22,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-17 06:13:22,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:13:22,248 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:13:22,248 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 06:13:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:13:22,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-12-17 06:13:22,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:13:22,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115181139] [2021-12-17 06:13:22,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:13:22,263 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:13:22,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:13:22,265 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) [2021-12-17 06:13:22,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 06:13:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:13:22,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 39 conjunts are in the unsatisfiable core [2021-12-17 06:13:22,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:13:22,515 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:13:22,527 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-17 06:13:22,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-17 06:13:22,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:13:22,704 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-17 06:13:22,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-17 06:13:22,788 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-12-17 06:13:22,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-12-17 06:13:25,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:25,488 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:13:25,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-17 06:13:25,518 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-17 06:13:25,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2021-12-17 06:13:27,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:27,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-17 06:13:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:13:27,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:13:33,796 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_13| (_ BitVec 32)) (v_ArrVal_56 (_ BitVec 32)) (v_ArrVal_45 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (v_ArrVal_57 (_ BitVec 32)) (v_ArrVal_47 (_ BitVec 32)) (v_ArrVal_48 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_13|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_56) (_ bv8 32) v_ArrVal_57))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_13| .cse1))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_45) (bvadd |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv4 32)) v_ArrVal_47) (bvadd |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv8 32)) v_ArrVal_48) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_13|)))))) is different from false [2021-12-17 06:13:33,807 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:13:33,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115181139] [2021-12-17 06:13:33,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115181139] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:13:33,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [19644813] [2021-12-17 06:13:33,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:13:33,808 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-17 06:13:33,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-12-17 06:13:33,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-17 06:13:33,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2021-12-17 06:13:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:13:34,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-17 06:13:34,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:13:34,133 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-17 06:13:34,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-17 06:13:34,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:13:34,328 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-17 06:13:34,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-12-17 06:13:34,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:34,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:34,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:34,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2021-12-17 06:13:37,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:37,180 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:13:37,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-12-17 06:13:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:37,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-17 06:13:39,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:39,337 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-17 06:13:39,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-12-17 06:13:39,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:13:39,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:13:42,045 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_testOne_#t~mem8#1_12| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_22| (_ BitVec 32)) (v_ArrVal_105 (_ BitVec 32)) (v_ArrVal_104 (_ BitVec 32)) (v_ArrVal_114 (_ BitVec 32)) (v_ArrVal_113 (_ BitVec 32)) (v_ArrVal_102 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_22|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_113) (_ bv8 32) v_ArrVal_114))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_12| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_22| .cse1))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_104) (bvadd |c_ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv4 32)) v_ArrVal_105) (bvadd |c_ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv8 32)) v_ArrVal_102) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_12|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_22|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_12|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) is different from false [2021-12-17 06:13:42,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [19644813] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:13:42,051 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 06:13:42,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-12-17 06:13:42,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223362644] [2021-12-17 06:13:42,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 06:13:42,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 06:13:42,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:13:42,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 06:13:42,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=261, Unknown=5, NotChecked=66, Total=380 [2021-12-17 06:13:42,083 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-17 06:13:44,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:13:44,844 INFO L93 Difference]: Finished difference Result 81 states and 96 transitions. [2021-12-17 06:13:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 06:13:44,846 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 14 [2021-12-17 06:13:44,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:13:44,850 INFO L225 Difference]: With dead ends: 81 [2021-12-17 06:13:44,850 INFO L226 Difference]: Without dead ends: 38 [2021-12-17 06:13:44,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=77, Invalid=431, Unknown=6, NotChecked=86, Total=600 [2021-12-17 06:13:44,854 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 06:13:44,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 283 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 49 Invalid, 0 Unknown, 125 Unchecked, 0.2s Time] [2021-12-17 06:13:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-17 06:13:44,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-12-17 06:13:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 06:13:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-12-17 06:13:44,909 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 14 [2021-12-17 06:13:44,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:13:44,911 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-12-17 06:13:44,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-17 06:13:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-12-17 06:13:44,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-17 06:13:44,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:13:44,920 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:13:44,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2021-12-17 06:13:45,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 06:13:45,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:13:45,329 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 06:13:45,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:13:45,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1984783089, now seen corresponding path program 1 times [2021-12-17 06:13:45,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:13:45,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586226290] [2021-12-17 06:13:45,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:13:45,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:13:45,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:13:45,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 06:13:45,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 06:13:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:13:45,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 43 conjunts are in the unsatisfiable core [2021-12-17 06:13:45,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:13:45,664 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-17 06:13:45,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-17 06:13:45,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:13:45,819 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-17 06:13:45,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-12-17 06:13:45,889 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-12-17 06:13:45,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-12-17 06:13:48,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:48,249 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:13:48,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-17 06:13:48,263 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-17 06:13:48,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-12-17 06:13:50,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:50,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-17 06:13:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 06:13:50,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:13:54,978 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ BitVec 32)) (v_ArrVal_195 (_ BitVec 32)) (v_ArrVal_194 (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_35| (_ BitVec 32)) (v_ArrVal_204 (_ BitVec 32)) (v_ArrVal_203 (_ BitVec 32)) (v_ArrVal_196 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem12#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_35|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_203) (_ bv8 32) v_ArrVal_204))) (or (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |v_ULTIMATE.start_testTwo_#t~mem12#1_9| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_35| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |ULTIMATE.start_testTwo_~#f2~1#1.offset| v_ArrVal_196) (bvadd |ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv4 32)) v_ArrVal_195) (bvadd |ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv8 32)) v_ArrVal_194) |ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem12#1_9|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_35|)))))) is different from false [2021-12-17 06:13:54,988 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:13:54,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586226290] [2021-12-17 06:13:54,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586226290] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:13:54,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [824896529] [2021-12-17 06:13:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:13:54,988 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-17 06:13:54,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-12-17 06:13:54,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-17 06:13:55,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-12-17 06:13:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:13:55,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 44 conjunts are in the unsatisfiable core [2021-12-17 06:13:55,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:13:55,491 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-17 06:13:55,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-17 06:13:55,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:13:55,756 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-17 06:13:55,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-12-17 06:13:55,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:55,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:55,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:13:55,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2021-12-17 06:14:00,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:00,264 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:14:00,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-12-17 06:14:00,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:00,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-17 06:14:02,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:02,425 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-17 06:14:02,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-12-17 06:14:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 06:14:02,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:14:04,793 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_48| (_ BitVec 32)) (v_ArrVal_281 (_ BitVec 32)) (v_ArrVal_280 (_ BitVec 32)) (v_ArrVal_290 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem12#1_12| (_ BitVec 32)) (v_ArrVal_279 (_ BitVec 32)) (v_ArrVal_289 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_48|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_289) (_ bv8 32) v_ArrVal_290))) (or (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |v_ULTIMATE.start_testTwo_#t~mem12#1_12| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_48| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| v_ArrVal_281) (bvadd |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv4 32)) v_ArrVal_280) (bvadd |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv8 32)) v_ArrVal_279) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem12#1_12|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_48|)))))) is different from false [2021-12-17 06:14:04,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [824896529] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:14:04,805 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 06:14:04,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-12-17 06:14:04,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298915370] [2021-12-17 06:14:04,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 06:14:04,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 06:14:04,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:14:04,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 06:14:04,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=255, Unknown=5, NotChecked=66, Total=380 [2021-12-17 06:14:04,807 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-17 06:14:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:14:07,087 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2021-12-17 06:14:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 06:14:07,088 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 27 [2021-12-17 06:14:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:14:07,089 INFO L225 Difference]: With dead ends: 38 [2021-12-17 06:14:07,089 INFO L226 Difference]: Without dead ends: 36 [2021-12-17 06:14:07,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=59, Invalid=286, Unknown=5, NotChecked=70, Total=420 [2021-12-17 06:14:07,098 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 06:14:07,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 192 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 106 Unchecked, 0.1s Time] [2021-12-17 06:14:07,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-17 06:14:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-12-17 06:14:07,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 25 states have internal predecessors, (25), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 06:14:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-12-17 06:14:07,108 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 27 [2021-12-17 06:14:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:14:07,109 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-12-17 06:14:07,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-17 06:14:07,110 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2021-12-17 06:14:07,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-17 06:14:07,111 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:14:07,112 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:14:07,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-12-17 06:14:07,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-17 06:14:07,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:14:07,522 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 06:14:07,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:14:07,522 INFO L85 PathProgramCache]: Analyzing trace with hash 248347731, now seen corresponding path program 1 times [2021-12-17 06:14:07,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:14:07,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9015515] [2021-12-17 06:14:07,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:14:07,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:14:07,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:14:07,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 06:14:07,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 06:14:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:14:07,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-17 06:14:07,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:14:07,857 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-12-17 06:14:07,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 18 [2021-12-17 06:14:07,954 INFO L354 Elim1Store]: treesize reduction 4, result has 85.7 percent of original size [2021-12-17 06:14:07,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 43 [2021-12-17 06:14:08,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:14:08,121 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-12-17 06:14:08,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 29 [2021-12-17 06:14:08,249 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:14:08,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:08,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:08,272 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 06:14:08,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 69 [2021-12-17 06:14:08,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:14:08,621 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-17 06:14:08,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-12-17 06:14:08,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-12-17 06:14:11,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:11,115 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:14:11,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-17 06:14:11,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:11,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-12-17 06:14:13,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:13,278 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-17 06:14:13,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-12-17 06:14:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 06:14:13,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:14:15,834 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsField_~#c~0.base_13| (_ BitVec 32)) (v_ArrVal_400 (_ BitVec 32)) (v_ArrVal_399 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem16#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_13|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_399) (_ bv8 32) v_ArrVal_400))) (or (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_13|))) (not (= |v_ULTIMATE.start_testTwo_#t~mem16#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_13| .cse1))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem16#1_9|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) is different from false [2021-12-17 06:14:15,839 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:14:15,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9015515] [2021-12-17 06:14:15,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9015515] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:14:15,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [308689357] [2021-12-17 06:14:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:14:15,840 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-17 06:14:15,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-12-17 06:14:15,841 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-17 06:14:15,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-12-17 06:14:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:14:16,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 55 conjunts are in the unsatisfiable core [2021-12-17 06:14:16,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:14:16,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:14:16,820 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-17 06:14:16,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-17 06:14:17,007 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-17 06:14:17,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-17 06:14:17,145 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-17 06:14:17,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-17 06:14:17,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:14:17,396 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-17 06:14:17,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-17 06:14:17,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-12-17 06:14:21,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:21,991 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:14:21,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-12-17 06:14:22,031 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-17 06:14:22,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2021-12-17 06:14:24,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:24,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-17 06:14:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 06:14:24,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:14:29,081 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ BitVec 32)) (v_ArrVal_502 (_ BitVec 32)) (|v_returnsField_~#c~0.base_22| (_ BitVec 32)) (v_ArrVal_501 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem16#1_12| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_22|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_501) (_ bv8 32) v_ArrVal_502))) (or (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_22|))) (not (= |v_ULTIMATE.start_testTwo_#t~mem16#1_12| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsField_~#c~0.base_22| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem16#1_12|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|)))))) is different from false [2021-12-17 06:14:29,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [308689357] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:14:29,087 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 06:14:29,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 20 [2021-12-17 06:14:29,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419401522] [2021-12-17 06:14:29,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 06:14:29,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-17 06:14:29,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:14:29,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-17 06:14:29,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=446, Unknown=6, NotChecked=86, Total=600 [2021-12-17 06:14:29,088 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 20 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-17 06:14:34,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:14:34,304 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2021-12-17 06:14:34,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 06:14:34,307 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) Word has length 38 [2021-12-17 06:14:34,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:14:34,307 INFO L225 Difference]: With dead ends: 36 [2021-12-17 06:14:34,307 INFO L226 Difference]: Without dead ends: 34 [2021-12-17 06:14:34,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 54 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 23.2s TimeCoverageRelationStatistics Valid=114, Invalid=816, Unknown=8, NotChecked=118, Total=1056 [2021-12-17 06:14:34,311 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 06:14:34,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 165 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 131 Unchecked, 0.2s Time] [2021-12-17 06:14:34,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-17 06:14:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-12-17 06:14:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.0) internal successors, (23), 23 states have internal predecessors, (23), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 06:14:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2021-12-17 06:14:34,321 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 38 [2021-12-17 06:14:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:14:34,321 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2021-12-17 06:14:34,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-17 06:14:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2021-12-17 06:14:34,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-17 06:14:34,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:14:34,323 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:14:34,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-12-17 06:14:34,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-17 06:14:34,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:14:34,737 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 06:14:34,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:14:34,739 INFO L85 PathProgramCache]: Analyzing trace with hash 513814719, now seen corresponding path program 1 times [2021-12-17 06:14:34,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:14:34,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215959406] [2021-12-17 06:14:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:14:34,741 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:14:34,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:14:34,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 06:14:34,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-17 06:14:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:14:35,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 49 conjunts are in the unsatisfiable core [2021-12-17 06:14:35,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:14:35,458 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:14:35,472 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-17 06:14:35,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-17 06:14:35,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:14:35,683 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-17 06:14:35,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-17 06:14:35,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-12-17 06:14:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:38,854 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:14:38,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-17 06:14:38,885 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-17 06:14:38,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2021-12-17 06:14:41,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:41,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-17 06:14:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-17 06:14:42,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:14:47,819 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_629 (_ BitVec 32)) (v_ArrVal_628 (_ BitVec 32)) (|ULTIMATE.start_testThree_~#f2~2#1.offset| (_ BitVec 32)) (|v_returnsField_~#c~0.base_35| (_ BitVec 32)) (|v_ULTIMATE.start_testThree_#t~mem20#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_35|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_628) (_ bv8 32) v_ArrVal_629))) (or (not (= |v_ULTIMATE.start_testThree_#t~mem20#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_35| .cse1))) (store .cse0 |c_ULTIMATE.start_testThree_~#f2~2#1.base| (store (select .cse0 |c_ULTIMATE.start_testThree_~#f2~2#1.base|) |ULTIMATE.start_testThree_~#f2~2#1.offset| |v_ULTIMATE.start_testThree_#t~mem20#1_9|))) |c_ULTIMATE.start_testThree_~#f1~2#1.base|) |c_ULTIMATE.start_testThree_~#f1~2#1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testThree_#t~mem20#1_9|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_35|)))))) is different from false [2021-12-17 06:14:47,825 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:14:47,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215959406] [2021-12-17 06:14:47,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215959406] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:14:47,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1181932495] [2021-12-17 06:14:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:14:47,825 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-17 06:14:47,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-12-17 06:14:47,826 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-17 06:14:47,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-12-17 06:14:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:14:48,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-17 06:14:48,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:14:48,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:14:48,908 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-17 06:14:48,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-17 06:14:48,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-17 06:14:49,105 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-17 06:14:49,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-17 06:14:49,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-12-17 06:14:53,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:53,567 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 06:14:53,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-17 06:14:53,596 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-17 06:14:53,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2021-12-17 06:14:53,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:14:53,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-17 06:14:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-17 06:14:53,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 06:14:59,770 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testThree_~#f2~2#1.offset| (_ BitVec 32)) (|v_returnsField_~#c~0.base_46| (_ BitVec 32)) (|v_ULTIMATE.start_testThree_#t~mem20#1_9| (_ BitVec 32)) (v_ArrVal_752 (_ BitVec 32)) (v_ArrVal_751 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_46|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_751) (_ bv8 32) v_ArrVal_752))) (or (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_46|))) (not (= |v_ULTIMATE.start_testThree_#t~mem20#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_46| .cse1))) (store .cse0 |c_ULTIMATE.start_testThree_~#f2~2#1.base| (store (select .cse0 |c_ULTIMATE.start_testThree_~#f2~2#1.base|) |ULTIMATE.start_testThree_~#f2~2#1.offset| |v_ULTIMATE.start_testThree_#t~mem20#1_9|))) |c_ULTIMATE.start_testThree_~#f1~2#1.base|) |c_ULTIMATE.start_testThree_~#f1~2#1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testThree_#t~mem20#1_9|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) is different from false [2021-12-17 06:14:59,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1181932495] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 06:14:59,778 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 06:14:59,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-12-17 06:14:59,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438464013] [2021-12-17 06:14:59,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 06:14:59,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 06:14:59,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:14:59,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 06:14:59,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=127, Unknown=5, NotChecked=46, Total=210 [2021-12-17 06:14:59,779 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 11 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-17 06:15:01,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:15:01,957 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2021-12-17 06:15:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 06:15:01,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2021-12-17 06:15:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:15:01,958 INFO L225 Difference]: With dead ends: 34 [2021-12-17 06:15:01,958 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 06:15:01,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=37, Invalid=148, Unknown=5, NotChecked=50, Total=240 [2021-12-17 06:15:01,959 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 06:15:01,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 29 Invalid, 0 Unknown, 62 Unchecked, 0.1s Time] [2021-12-17 06:15:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 06:15:01,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 06:15:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-17 06:15:01,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 06:15:01,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2021-12-17 06:15:01,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:15:01,960 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 06:15:01,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-17 06:15:01,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 06:15:01,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 06:15:01,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-12-17 06:15:01,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-12-17 06:15:01,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-12-17 06:15:01,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-12-17 06:15:01,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-12-17 06:15:02,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-17 06:15:02,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:15:02,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 06:15:02,512 INFO L854 garLoopResultBuilder]: At program point returnsStructureENTRY(lines 127 135) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|)) [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point returnsStructureFINAL(lines 127 135) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point returnsStructureEXIT(lines 127 135) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point returnsFieldEXIT(lines 117 125) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L854 garLoopResultBuilder]: At program point returnsFieldENTRY(lines 117 125) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|)) [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point returnsFieldFINAL(lines 117 125) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L854 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (and (not (= |ULTIMATE.start_testTwo_~#f2~1#1.base| |ULTIMATE.start_testTwo_~#f1~1#1.base|)) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|))))) (_ bv1 1))) (exists ((|v_returnsField_~#c~0.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_returnsField_~#c~0.base_6|) (_ bv0 32)))) (and (= .cse0 (_ bv0 32)) (= (let ((.cse1 (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1#1.base|) |ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (not (= |v_returnsField_~#c~0.base_6| |ULTIMATE.start_testTwo_~#f1~1#1.base|)) (not (= |ULTIMATE.start_testTwo_~#f2~1#1.base| |v_returnsField_~#c~0.base_6|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|))) (_ bv1 1))) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f1~1#1.offset|)) [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point L156(line 156) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point L156-1(line 156) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L854 garLoopResultBuilder]: At program point L156-3(line 156) the Hoare annotation is: (and (not (= |ULTIMATE.start_testTwo_~#f2~1#1.base| |ULTIMATE.start_testTwo_~#f1~1#1.base|)) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|)))) (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (_ bv1 1))) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f1~1#1.offset|)) [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2021-12-17 06:15:02,513 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L144-1(line 144) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L144-3(line 144) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L173-1(line 173) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L173-3(line 173) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L161-1(line 161) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L161-3(line 161) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L854 garLoopResultBuilder]: At program point L153(line 153) the Hoare annotation is: (and (not (= |ULTIMATE.start_testTwo_~#f2~1#1.base| |ULTIMATE.start_testTwo_~#f1~1#1.base|)) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|)))) (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (_ bv1 1))) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f1~1#1.offset|)) [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L153-1(line 153) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L854 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f2~0#1.base|)) (_ bv1 1))) (not (= |ULTIMATE.start_testOne_~#f2~0#1.base| |ULTIMATE.start_testOne_~#f1~0#1.base|)) (= (_ bv0 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f1~0#1.base|))) (_ bv1 1))) (= (_ bv0 32) |ULTIMATE.start_testOne_~#f1~0#1.offset|)) [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L141-1(line 141) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L854 garLoopResultBuilder]: At program point L170(line 170) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testThree_~#f1~2#1.base|))) (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testThree_~#f2~2#1.base|)) (_ bv1 1))) (not (= |ULTIMATE.start_testThree_~#f2~2#1.base| |ULTIMATE.start_testThree_~#f1~2#1.base|))) [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L170-1(line 170) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-17 06:15:02,514 INFO L854 garLoopResultBuilder]: At program point L154(line 154) the Hoare annotation is: (and (not (= |ULTIMATE.start_testTwo_~#f2~1#1.base| |ULTIMATE.start_testTwo_~#f1~1#1.base|)) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|)))) (_ bv1 1))) (exists ((|v_returnsStructure_~#c~1.base_29| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_returnsStructure_~#c~1.base_29|) (_ bv0 32)))) (and (= (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1#1.base|) |ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= .cse1 (_ bv0 32)) (not (= |ULTIMATE.start_testTwo_~#f1~1#1.base| |v_returnsStructure_~#c~1.base_29|))))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (_ bv1 1))) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) (= (_ bv0 32) |ULTIMATE.start_testTwo_~#f1~1#1.offset|)) [2021-12-17 06:15:02,514 INFO L858 garLoopResultBuilder]: For program point L154-1(line 154) no Hoare annotation was computed. [2021-12-17 06:15:02,515 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2021-12-17 06:15:02,515 INFO L861 garLoopResultBuilder]: At program point L183(lines 178 184) the Hoare annotation is: true [2021-12-17 06:15:02,515 INFO L861 garLoopResultBuilder]: At program point L146(lines 138 147) the Hoare annotation is: true [2021-12-17 06:15:02,515 INFO L861 garLoopResultBuilder]: At program point L175(lines 167 176) the Hoare annotation is: true [2021-12-17 06:15:02,515 INFO L854 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (and (exists ((|v_returnsStructure_~#c~1.base_6| (_ BitVec 32))) (and (not (= |v_returnsStructure_~#c~1.base_6| |ULTIMATE.start_testOne_~#f2~0#1.base|)) (not (= |v_returnsStructure_~#c~1.base_6| |ULTIMATE.start_testOne_~#f1~0#1.base|)) (= (select (select |#memory_int| |v_returnsStructure_~#c~1.base_6|) (_ bv0 32)) (_ bv0 32)))) (= (_ bv0 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) (not (= |ULTIMATE.start_testOne_~#f2~0#1.base| |ULTIMATE.start_testOne_~#f1~0#1.base|)) (= (_ bv0 32) |ULTIMATE.start_testOne_~#f1~0#1.offset|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f2~0#1.base|))) (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f1~0#1.base|)))) (_ bv1 1))) (= (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_testOne_~#f1~0#1.base|) |ULTIMATE.start_testOne_~#f1~0#1.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) [2021-12-17 06:15:02,515 INFO L858 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2021-12-17 06:15:02,515 INFO L854 garLoopResultBuilder]: At program point L171(line 171) the Hoare annotation is: (and (exists ((|v_returnsField_~#c~0.base_28| (_ BitVec 32))) (and (not (= |v_returnsField_~#c~0.base_28| |ULTIMATE.start_testThree_~#f2~2#1.base|)) (not (= |v_returnsField_~#c~0.base_28| |ULTIMATE.start_testThree_~#f1~2#1.base|)) (= (select (select |#memory_int| |v_returnsField_~#c~0.base_28|) (_ bv0 32)) (_ bv0 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |#valid| |ULTIMATE.start_testThree_~#f1~2#1.base|)))) (_ bv1 1))) (= (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_testThree_~#f1~2#1.base|) |ULTIMATE.start_testThree_~#f1~2#1.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (not (= |ULTIMATE.start_testThree_~#f2~2#1.base| |ULTIMATE.start_testThree_~#f1~2#1.base|)) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testThree_~#f2~2#1.base|))) (_ bv1 1)))) [2021-12-17 06:15:02,515 INFO L858 garLoopResultBuilder]: For program point L171-1(line 171) no Hoare annotation was computed. [2021-12-17 06:15:02,515 INFO L861 garLoopResultBuilder]: At program point L163(lines 150 164) the Hoare annotation is: true [2021-12-17 06:15:02,517 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-17 06:15:02,518 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 06:15:02,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 06:15:02 BoogieIcfgContainer [2021-12-17 06:15:02,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 06:15:02,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 06:15:02,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 06:15:02,533 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 06:15:02,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:13:22" (3/4) ... [2021-12-17 06:15:02,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 06:15:02,547 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2021-12-17 06:15:02,548 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsField [2021-12-17 06:15:02,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-12-17 06:15:02,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-17 06:15:02,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-17 06:15:02,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 06:15:02,601 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 06:15:02,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 06:15:02,602 INFO L158 Benchmark]: Toolchain (without parser) took 101147.22ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 54.6MB in the beginning and 59.6MB in the end (delta: -5.0MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-12-17 06:15:02,602 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 71.3MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:15:02,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.35ms. Allocated memory is still 71.3MB. Free memory was 54.5MB in the beginning and 53.3MB in the end (delta: 1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 06:15:02,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.36ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 51.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:15:02,603 INFO L158 Benchmark]: Boogie Preprocessor took 42.37ms. Allocated memory is still 71.3MB. Free memory was 51.5MB in the beginning and 49.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:15:02,604 INFO L158 Benchmark]: RCFGBuilder took 283.16ms. Allocated memory is still 71.3MB. Free memory was 49.7MB in the beginning and 35.3MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 06:15:02,604 INFO L158 Benchmark]: TraceAbstraction took 100404.12ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 34.7MB in the beginning and 62.8MB in the end (delta: -28.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:15:02,605 INFO L158 Benchmark]: Witness Printer took 68.60ms. Allocated memory is still 98.6MB. Free memory was 62.8MB in the beginning and 59.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 06:15:02,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 71.3MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.35ms. Allocated memory is still 71.3MB. Free memory was 54.5MB in the beginning and 53.3MB in the end (delta: 1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.36ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 51.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.37ms. Allocated memory is still 71.3MB. Free memory was 51.5MB in the beginning and 49.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.16ms. Allocated memory is still 71.3MB. Free memory was 49.7MB in the beginning and 35.3MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 100404.12ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 34.7MB in the beginning and 62.8MB in the end (delta: -28.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.60ms. Allocated memory is still 98.6MB. Free memory was 62.8MB in the beginning and 59.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 144]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 156]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 161]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 100.3s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 762 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 424 IncrementalHoareTripleChecker+Unchecked, 639 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 123 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 199 SyntacticMatches, 16 SemanticMatches, 87 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 86.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 42, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 26 PreInvPairs, 36 NumberOfFragments, 430 HoareAnnotationTreeSize, 26 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 82.0s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 252 ConstructedInterpolants, 65 QuantifiedInterpolants, 3974 SizeOfPredicates, 76 NumberOfNonLiveVariables, 1768 ConjunctsInSsa, 381 ConjunctsInUnsatCore, 8 InterpolantComputations, 0 PerfectInterpolantSequences, 138/156 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-17 06:15:02,684 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 Writing output log to file Ultimate.log Result: TRUE