./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:20:00,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:20:00,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:20:00,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:20:00,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:20:00,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:20:00,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:20:00,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:20:00,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:20:00,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:20:00,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:20:00,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:20:00,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:20:00,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:20:00,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:20:00,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:20:00,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:20:00,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:20:00,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:20:00,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:20:00,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:20:00,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:20:00,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:20:00,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:20:00,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:20:00,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:20:00,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:20:00,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:20:00,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:20:00,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:20:00,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:20:00,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:20:00,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:20:00,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:20:00,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:20:00,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:20:00,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:20:00,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:20:00,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:20:00,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:20:00,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:20:00,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:20:00,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:20:00,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:20:00,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:20:00,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:20:00,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:20:00,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:20:00,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:20:00,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:20:00,651 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:20:00,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:20:00,651 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:20:00,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:20:00,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:20:00,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:20:00,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:20:00,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:20:00,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:20:00,653 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:20:00,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:20:00,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:20:00,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:20:00,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:20:00,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:20:00,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:20:00,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:00,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:20:00,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:20:00,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:20:00,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:20:00,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:20:00,655 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:20:00,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:20:00,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:20:00,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-02-20 16:20:00,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:20:00,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:20:00,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:20:00,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:20:00,929 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:20:00,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-02-20 16:20:00,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d408657cc/261616e87fed42c4b6af38f4a04a6958/FLAG9482cf98e [2022-02-20 16:20:01,317 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:20:01,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-02-20 16:20:01,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d408657cc/261616e87fed42c4b6af38f4a04a6958/FLAG9482cf98e [2022-02-20 16:20:01,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d408657cc/261616e87fed42c4b6af38f4a04a6958 [2022-02-20 16:20:01,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:20:01,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:20:01,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:01,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:20:01,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:20:01,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:01,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2f952c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01, skipping insertion in model container [2022-02-20 16:20:01,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:01,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:20:01,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:20:01,915 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/float-no-simp3.c[358,371] [2022-02-20 16:20:01,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:01,946 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:20:01,959 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/float-no-simp3.c[358,371] [2022-02-20 16:20:01,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:01,969 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:20:01,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01 WrapperNode [2022-02-20 16:20:01,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:01,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:01,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:20:01,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:20:01,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:01,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:01,990 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-02-20 16:20:01,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:01,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:20:01,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:20:01,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:20:01,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:01,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:01,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:01,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:02,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:02,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:02,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:02,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:20:02,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:20:02,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:20:02,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:20:02,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (1/1) ... [2022-02-20 16:20:02,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:02,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:20:02,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:20:02,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:20:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:20:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:20:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:20:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:20:02,122 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:20:02,123 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:20:02,179 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:20:02,184 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:20:02,184 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:20:02,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:02 BoogieIcfgContainer [2022-02-20 16:20:02,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:20:02,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:20:02,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:20:02,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:20:02,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:20:01" (1/3) ... [2022-02-20 16:20:02,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706674f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:02, skipping insertion in model container [2022-02-20 16:20:02,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:01" (2/3) ... [2022-02-20 16:20:02,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706674f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:02, skipping insertion in model container [2022-02-20 16:20:02,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:02" (3/3) ... [2022-02-20 16:20:02,192 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-02-20 16:20:02,196 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:20:02,196 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:20:02,234 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:20:02,240 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:20:02,240 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:20:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:20:02,261 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:20:02,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:20:02,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:20:02,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:20:02,267 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-02-20 16:20:02,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:20:02,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738093826] [2022-02-20 16:20:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:20:02,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:20:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:20:02,341 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:20:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:20:02,381 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:20:02,382 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:20:02,384 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:20:02,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:20:02,391 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:20:02,394 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:20:02,416 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:20:02,416 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:20:02,416 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-02-20 16:20:02,417 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-02-20 16:20:02,417 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2022-02-20 16:20:02,417 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2022-02-20 16:20:02,417 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2022-02-20 16:20:02,418 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:20:02,418 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:20:02,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:20:02 BoogieIcfgContainer [2022-02-20 16:20:02,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:20:02,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:20:02,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:20:02,423 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:20:02,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:02" (3/4) ... [2022-02-20 16:20:02,426 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:20:02,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:20:02,428 INFO L158 Benchmark]: Toolchain (without parser) took 665.46ms. Allocated memory is still 96.5MB. Free memory was 64.3MB in the beginning and 48.5MB in the end (delta: 15.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-02-20 16:20:02,429 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:02,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.94ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 72.6MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:20:02,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.76ms. Allocated memory is still 96.5MB. Free memory was 72.6MB in the beginning and 71.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:02,431 INFO L158 Benchmark]: Boogie Preprocessor took 12.30ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 70.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:20:02,435 INFO L158 Benchmark]: RCFGBuilder took 181.35ms. Allocated memory is still 96.5MB. Free memory was 70.5MB in the beginning and 62.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:20:02,435 INFO L158 Benchmark]: TraceAbstraction took 232.81ms. Allocated memory is still 96.5MB. Free memory was 61.6MB in the beginning and 49.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:20:02,436 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 48.5MB in the end (delta: 528.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:02,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.94ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 72.6MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.76ms. Allocated memory is still 96.5MB. Free memory was 72.6MB in the beginning and 71.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.30ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 70.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 181.35ms. Allocated memory is still 96.5MB. Free memory was 70.5MB in the beginning and 62.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 232.81ms. Allocated memory is still 96.5MB. Free memory was 61.6MB in the beginning and 49.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 48.5MB in the end (delta: 528.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, 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=8occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2022-02-20 16:20:02,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:20:04,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:20:04,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:20:04,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:20:04,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:20:04,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:20:04,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:20:04,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:20:04,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:20:04,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:20:04,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:20:04,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:20:04,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:20:04,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:20:04,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:20:04,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:20:04,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:20:04,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:20:04,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:20:04,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:20:04,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:20:04,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:20:04,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:20:04,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:20:04,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:20:04,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:20:04,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:20:04,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:20:04,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:20:04,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:20:04,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:20:04,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:20:04,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:20:04,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:20:04,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:20:04,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:20:04,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:20:04,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:20:04,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:20:04,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:20:04,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:20:04,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:20:04,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:20:04,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:20:04,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:20:04,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:20:04,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:20:04,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:20:04,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:20:04,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:20:04,524 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:20:04,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:20:04,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:20:04,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:20:04,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:20:04,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:20:04,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:20:04,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:20:04,526 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:20:04,526 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:20:04,526 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:20:04,526 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:20:04,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:20:04,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:20:04,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:20:04,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:20:04,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:20:04,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:20:04,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:04,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:20:04,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:20:04,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:20:04,535 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:20:04,535 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:20:04,535 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:20:04,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:20:04,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:20:04,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:20:04,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-02-20 16:20:04,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:20:04,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:20:04,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:20:04,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:20:04,859 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:20:04,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-02-20 16:20:04,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4358489b/f990da674a8e485985688056333c8371/FLAG1997db611 [2022-02-20 16:20:05,269 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:20:05,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-02-20 16:20:05,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4358489b/f990da674a8e485985688056333c8371/FLAG1997db611 [2022-02-20 16:20:05,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4358489b/f990da674a8e485985688056333c8371 [2022-02-20 16:20:05,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:20:05,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:20:05,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:05,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:20:05,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:20:05,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c76ada4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05, skipping insertion in model container [2022-02-20 16:20:05,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:20:05,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:20:05,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-02-20 16:20:05,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:05,844 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:20:05,854 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/float-no-simp3.c[358,371] [2022-02-20 16:20:05,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:05,877 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:20:05,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05 WrapperNode [2022-02-20 16:20:05,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:05,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:05,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:20:05,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:20:05,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,935 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-02-20 16:20:05,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:05,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:20:05,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:20:05,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:20:05,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:20:05,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:20:05,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:20:05,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:20:05,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (1/1) ... [2022-02-20 16:20:05,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:05,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:20:06,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:20:06,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:20:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:20:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:20:06,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:20:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:20:06,079 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:20:06,081 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:20:06,246 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:20:06,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:20:06,252 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:20:06,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:06 BoogieIcfgContainer [2022-02-20 16:20:06,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:20:06,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:20:06,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:20:06,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:20:06,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:20:05" (1/3) ... [2022-02-20 16:20:06,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77090971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:06, skipping insertion in model container [2022-02-20 16:20:06,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:05" (2/3) ... [2022-02-20 16:20:06,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77090971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:06, skipping insertion in model container [2022-02-20 16:20:06,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:06" (3/3) ... [2022-02-20 16:20:06,261 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-02-20 16:20:06,266 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:20:06,266 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:20:06,316 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:20:06,325 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:20:06,325 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:20:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:20:06,354 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:20:06,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:20:06,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:20:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:20:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-02-20 16:20:06,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:20:06,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663561818] [2022-02-20 16:20:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:20:06,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:20:06,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:20:06,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:20:06,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:20:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:06,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-20 16:20:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:06,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:20:06,653 INFO L290 TraceCheckUtils]: 0: Hoare triple {11#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(17bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {16#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:06,655 INFO L290 TraceCheckUtils]: 1: Hoare triple {16#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~fs1~0#1, main_~fs2~0#1;main_~fs1~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 2.0), ~to_fp~FLOAT(currentRoundingMode, 6.0));main_~fs2~0#1 := ~fp.mul~FLOAT(currentRoundingMode, main_~fs1~0#1, ~to_fp~FLOAT(currentRoundingMode, 6.0)); {20#(= (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 2.0) ((_ to_fp 8 24) roundNearestTiesToEven 6.0)) ((_ to_fp 8 24) roundNearestTiesToEven 6.0)) |ULTIMATE.start_main_~fs2~0#1|)} is VALID [2022-02-20 16:20:06,656 INFO L290 TraceCheckUtils]: 2: Hoare triple {20#(= (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 2.0) ((_ to_fp 8 24) roundNearestTiesToEven 6.0)) ((_ to_fp 8 24) roundNearestTiesToEven 6.0)) |ULTIMATE.start_main_~fs2~0#1|)} assume !(2bv32 == ~convertFLOATToINT(~roundTowardZero, main_~fs2~0#1)); {12#false} is VALID [2022-02-20 16:20:06,656 INFO L290 TraceCheckUtils]: 3: Hoare triple {12#false} assume !false; {12#false} is VALID [2022-02-20 16:20:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:20:06,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:20:06,658 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:20:06,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663561818] [2022-02-20 16:20:06,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663561818] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:20:06,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:20:06,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:20:06,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460558771] [2022-02-20 16:20:06,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:20:06,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-02-20 16:20:06,668 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:20:06,671 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:06,713 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:06,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:20:06,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:20:06,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:20:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:20:06,742 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:06,823 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-02-20 16:20:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:20:06,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-02-20 16:20:06,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:20:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-02-20 16:20:06,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-02-20 16:20:06,831 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 10 transitions. [2022-02-20 16:20:06,882 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:06,888 INFO L225 Difference]: With dead ends: 11 [2022-02-20 16:20:06,889 INFO L226 Difference]: Without dead ends: 0 [2022-02-20 16:20:06,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-20 16:20:06,895 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:20:06,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:20:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-20 16:20:06,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-20 16:20:06,916 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:20:06,917 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-02-20 16:20:06,917 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-02-20 16:20:06,918 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-02-20 16:20:06,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:06,918 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:20:06,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:20:06,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:06,919 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:06,920 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-02-20 16:20:06,920 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-02-20 16:20:06,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:06,920 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:20:06,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:20:06,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:06,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:06,921 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:20:06,921 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:20:06,922 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) [2022-02-20 16:20:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-20 16:20:06,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-02-20 16:20:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:20:06,923 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-20 16:20:06,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:20:06,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:06,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:20:06,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-02-20 16:20:07,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:20:07,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-20 16:20:07,142 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-20 16:20:07,142 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-02-20 16:20:07,142 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-02-20 16:20:07,142 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-20 16:20:07,142 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-02-20 16:20:07,143 INFO L858 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-02-20 16:20:07,143 INFO L858 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-02-20 16:20:07,143 INFO L858 garLoopResultBuilder]: For program point L5(lines 5 11) no Hoare annotation was computed. [2022-02-20 16:20:07,147 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:20:07,148 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:20:07,153 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:20:07,153 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:20:07,153 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-02-20 16:20:07,153 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-02-20 16:20:07,154 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2022-02-20 16:20:07,154 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2022-02-20 16:20:07,154 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2022-02-20 16:20:07,154 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:20:07,154 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:20:07,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:20:07 BoogieIcfgContainer [2022-02-20 16:20:07,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:20:07,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:20:07,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:20:07,159 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:20:07,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:06" (3/4) ... [2022-02-20 16:20:07,162 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-02-20 16:20:07,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-02-20 16:20:07,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-02-20 16:20:07,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-02-20 16:20:07,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-02-20 16:20:07,209 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:20:07,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:20:07,210 INFO L158 Benchmark]: Toolchain (without parser) took 1511.78ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 35.5MB in the beginning and 53.0MB in the end (delta: -17.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-02-20 16:20:07,213 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:07,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 40.4MB in the end (delta: -5.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:20:07,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.83ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 40.4MB in the beginning and 54.6MB in the end (delta: -14.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:20:07,215 INFO L158 Benchmark]: Boogie Preprocessor took 40.00ms. Allocated memory is still 71.3MB. Free memory was 54.6MB in the beginning and 53.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:07,217 INFO L158 Benchmark]: RCFGBuilder took 275.87ms. Allocated memory is still 71.3MB. Free memory was 53.5MB in the beginning and 45.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:20:07,217 INFO L158 Benchmark]: TraceAbstraction took 900.51ms. Allocated memory is still 71.3MB. Free memory was 44.9MB in the beginning and 36.5MB in the end (delta: 8.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-02-20 16:20:07,218 INFO L158 Benchmark]: Witness Printer took 50.79ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 53.0MB in the end (delta: -16.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-02-20 16:20:07,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 40.4MB in the end (delta: -5.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.83ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 40.4MB in the beginning and 54.6MB in the end (delta: -14.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.00ms. Allocated memory is still 71.3MB. Free memory was 54.6MB in the beginning and 53.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.87ms. Allocated memory is still 71.3MB. Free memory was 53.5MB in the beginning and 45.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 900.51ms. Allocated memory is still 71.3MB. Free memory was 44.9MB in the beginning and 36.5MB in the end (delta: 8.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 50.79ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 53.0MB in the end (delta: -16.7MB). Peak memory consumption was 4.3MB. 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: 10]: 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 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-20 16:20:07,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE