./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.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/combinations/square_2+soft_float_3a.c.cil.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 933072632c6a38270f958834ec21adc26eb3cd8e8e46c1ac850ead52e91fbd69 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:01:58,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:01:58,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:01:58,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:01:58,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:01:58,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:01:58,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:01:58,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:01:58,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:01:58,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:01:58,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:01:58,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:01:58,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:01:58,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:01:58,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:01:58,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:01:58,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:01:58,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:01:58,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:01:58,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:01:58,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:01:58,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:01:58,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:01:58,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:01:58,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:01:58,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:01:58,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:01:58,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:01:58,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:01:58,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:01:58,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:01:58,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:01:58,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:01:58,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:01:58,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:01:58,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:01:58,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:01:58,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:01:58,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:01:58,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:01:58,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:01:58,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 20:01:58,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:01:58,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:01:58,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:01:58,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:01:58,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:01:58,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:01:58,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:01:58,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:01:58,128 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:01:58,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:01:58,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:01:58,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 20:01:58,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:01:58,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:01:58,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:01:58,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:01:58,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:01:58,130 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:01:58,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:01:58,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:01:58,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:01:58,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:01:58,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:01:58,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:01:58,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:01:58,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:01:58,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:01:58,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:01:58,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 20:01:58,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 20:01:58,138 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:01:58,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:01:58,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:01:58,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933072632c6a38270f958834ec21adc26eb3cd8e8e46c1ac850ead52e91fbd69 [2022-02-20 20:01:58,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:01:58,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:01:58,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:01:58,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:01:58,350 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:01:58,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c [2022-02-20 20:01:58,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e9da5a5/96d985c3a6f2429f9d589e27629cacec/FLAGee991a157 [2022-02-20 20:01:58,764 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:01:58,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c [2022-02-20 20:01:58,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e9da5a5/96d985c3a6f2429f9d589e27629cacec/FLAGee991a157 [2022-02-20 20:01:59,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e9da5a5/96d985c3a6f2429f9d589e27629cacec [2022-02-20 20:01:59,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:01:59,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:01:59,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:01:59,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:01:59,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:01:59,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c025ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59, skipping insertion in model container [2022-02-20 20:01:59,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:01:59,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:01:59,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[1997,2010] [2022-02-20 20:01:59,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[2366,2379] [2022-02-20 20:01:59,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:01:59,472 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:01:59,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[1997,2010] [2022-02-20 20:01:59,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[2366,2379] [2022-02-20 20:01:59,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:01:59,550 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:01:59,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59 WrapperNode [2022-02-20 20:01:59,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:01:59,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:01:59,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:01:59,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:01:59,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,610 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-02-20 20:01:59,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:01:59,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:01:59,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:01:59,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:01:59,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:01:59,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:01:59,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:01:59,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:01:59,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (1/1) ... [2022-02-20 20:01:59,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:01:59,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:01:59,688 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 20:01:59,703 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 20:01:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:01:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:01:59,746 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:01:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 20:01:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:01:59,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:01:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:01:59,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:01:59,815 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:01:59,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:02:00,308 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:02:00,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:02:00,315 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:02:00,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:02:00 BoogieIcfgContainer [2022-02-20 20:02:00,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:02:00,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:02:00,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:02:00,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:02:00,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:01:59" (1/3) ... [2022-02-20 20:02:00,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59fdbabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:02:00, skipping insertion in model container [2022-02-20 20:02:00,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:59" (2/3) ... [2022-02-20 20:02:00,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59fdbabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:02:00, skipping insertion in model container [2022-02-20 20:02:00,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:02:00" (3/3) ... [2022-02-20 20:02:00,323 INFO L111 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_3a.c.cil.c [2022-02-20 20:02:00,326 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:02:00,326 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:02:00,358 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:02:00,362 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 20:02:00,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:02:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 20:02:00,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:02:00,381 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:02:00,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:02:00,382 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:02:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:02:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-02-20 20:02:00,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:02:00,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795661936] [2022-02-20 20:02:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:02:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:02:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:02:00,482 INFO L290 TraceCheckUtils]: 0: Hoare triple {99#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2); {99#true} is VALID [2022-02-20 20:02:00,482 INFO L290 TraceCheckUtils]: 1: Hoare triple {99#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet30#1, main_#t~ret31#1, main_#t~ret32#1;assume -2147483648 <= main_#t~nondet30#1 && main_#t~nondet30#1 <= 2147483647; {99#true} is VALID [2022-02-20 20:02:00,482 INFO L290 TraceCheckUtils]: 2: Hoare triple {99#true} assume 0 != main_#t~nondet30#1;havoc main_#t~nondet30#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 1.0) then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {99#true} is VALID [2022-02-20 20:02:00,483 INFO L290 TraceCheckUtils]: 3: Hoare triple {99#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {100#false} is VALID [2022-02-20 20:02:00,483 INFO L290 TraceCheckUtils]: 4: Hoare triple {100#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {100#false} is VALID [2022-02-20 20:02:00,484 INFO L290 TraceCheckUtils]: 5: Hoare triple {100#false} assume !(~someBinaryFLOATComparisonOperation(main1_~result~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~result~0#1, 1.398)); {100#false} is VALID [2022-02-20 20:02:00,484 INFO L290 TraceCheckUtils]: 6: Hoare triple {100#false} assume !false; {100#false} is VALID [2022-02-20 20:02:00,485 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 20:02:00,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 20:02:00,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795661936] [2022-02-20 20:02:00,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795661936] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:02:00,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:02:00,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:02:00,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116146302] [2022-02-20 20:02:00,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:02:00,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 20:02:00,492 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:02:00,494 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:00,501 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:02:00,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:02:00,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 20:02:00,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:02:00,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:02:00,517 INFO L87 Difference]: Start difference. First operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:00,646 INFO L93 Difference]: Finished difference Result 187 states and 309 transitions. [2022-02-20 20:02:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:02:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 20:02:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:02:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2022-02-20 20:02:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2022-02-20 20:02:00,667 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 309 transitions. [2022-02-20 20:02:00,919 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 309 edges. 309 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:02:00,935 INFO L225 Difference]: With dead ends: 187 [2022-02-20 20:02:00,935 INFO L226 Difference]: Without dead ends: 87 [2022-02-20 20:02:00,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:02:00,943 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 20:02:00,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:02:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-02-20 20:02:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-02-20 20:02:00,975 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:02:00,979 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:00,980 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:00,981 INFO L87 Difference]: Start difference. First operand 87 states. Second operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:00,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:00,996 INFO L93 Difference]: Finished difference Result 87 states and 128 transitions. [2022-02-20 20:02:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-02-20 20:02:00,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:02:00,998 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:02:00,999 INFO L74 IsIncluded]: Start isIncluded. First operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 87 states. [2022-02-20 20:02:00,999 INFO L87 Difference]: Start difference. First operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 87 states. [2022-02-20 20:02:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:01,007 INFO L93 Difference]: Finished difference Result 87 states and 128 transitions. [2022-02-20 20:02:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-02-20 20:02:01,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:02:01,008 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:02:01,008 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:02:01,009 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:02:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 128 transitions. [2022-02-20 20:02:01,013 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 128 transitions. Word has length 7 [2022-02-20 20:02:01,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:02:01,013 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 128 transitions. [2022-02-20 20:02:01,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-02-20 20:02:01,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:02:01,014 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:02:01,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:02:01,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 20:02:01,015 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:02:01,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:02:01,018 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-02-20 20:02:01,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:02:01,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781881463] [2022-02-20 20:02:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:02:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:02:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:02:01,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:02:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:02:01,079 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 20:02:01,080 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:02:01,086 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 20:02:01,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 20:02:01,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 20:02:01,090 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 20:02:01,092 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:02:01,110 WARN L170 areAnnotationChecker]: base2fltENTRY has no Hoare annotation [2022-02-20 20:02:01,110 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 20:02:01,110 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-02-20 20:02:01,110 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:02:01,110 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:02:01,110 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:02:01,111 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: base2fltFINAL has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:02:01,112 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:02:01,113 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L281-1 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L297 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L282-1 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L283-1 has no Hoare annotation [2022-02-20 20:02:01,114 WARN L170 areAnnotationChecker]: L284-1 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:02:01,115 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:02:01,116 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:02:01,116 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:02:01,116 WARN L170 areAnnotationChecker]: L315 has no Hoare annotation [2022-02-20 20:02:01,116 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L120-7 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:02:01,117 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L318 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:02:01,118 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:02:01,119 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L260 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L214-8 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L287 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L287 has no Hoare annotation [2022-02-20 20:02:01,120 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L287-2 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L287-2 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L290 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L290 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:02:01,121 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:02:01,122 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:02:01,122 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L298 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L298 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L290-2 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L217-7 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:02:01,123 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:02:01,124 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:02:01,124 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L301 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L301 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:02:01,126 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:02:01,139 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:02:01,139 WARN L170 areAnnotationChecker]: L301-2 has no Hoare annotation [2022-02-20 20:02:01,139 WARN L170 areAnnotationChecker]: L219-8 has no Hoare annotation [2022-02-20 20:02:01,147 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:02:01,147 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:02:01,147 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L257-7 has no Hoare annotation [2022-02-20 20:02:01,148 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:02:01,149 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:02:01,149 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 20:02:01,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:02:01 BoogieIcfgContainer [2022-02-20 20:02:01,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:02:01,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:02:01,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:02:01,151 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:02:01,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:02:00" (3/4) ... [2022-02-20 20:02:01,154 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 20:02:01,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:02:01,156 INFO L158 Benchmark]: Toolchain (without parser) took 1959.61ms. Allocated memory was 94.4MB in the beginning and 140.5MB in the end (delta: 46.1MB). Free memory was 53.9MB in the beginning and 114.1MB in the end (delta: -60.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:02:01,156 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:02:01,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.43ms. Allocated memory was 94.4MB in the beginning and 140.5MB in the end (delta: 46.1MB). Free memory was 53.7MB in the beginning and 112.5MB in the end (delta: -58.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-02-20 20:02:01,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.77ms. Allocated memory is still 140.5MB. Free memory was 112.5MB in the beginning and 109.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:01,158 INFO L158 Benchmark]: Boogie Preprocessor took 35.97ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:01,159 INFO L158 Benchmark]: RCFGBuilder took 666.95ms. Allocated memory is still 140.5MB. Free memory was 107.4MB in the beginning and 98.9MB in the end (delta: 8.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 20:02:01,159 INFO L158 Benchmark]: TraceAbstraction took 832.90ms. Allocated memory is still 140.5MB. Free memory was 98.5MB in the beginning and 114.1MB in the end (delta: -15.6MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:01,159 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 140.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:02:01,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.43ms. Allocated memory was 94.4MB in the beginning and 140.5MB in the end (delta: 46.1MB). Free memory was 53.7MB in the beginning and 112.5MB in the end (delta: -58.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.77ms. Allocated memory is still 140.5MB. Free memory was 112.5MB in the beginning and 109.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.97ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.95ms. Allocated memory is still 140.5MB. Free memory was 107.4MB in the beginning and 98.9MB in the end (delta: 8.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 832.90ms. Allocated memory is still 140.5MB. Free memory was 98.5MB in the beginning and 114.1MB in the end (delta: -15.6MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 140.5MB. Free memory is still 114.1MB. 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: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: 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, 96 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 139 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 20:02:01,223 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/combinations/square_2+soft_float_3a.c.cil.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 933072632c6a38270f958834ec21adc26eb3cd8e8e46c1ac850ead52e91fbd69 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:02:03,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:02:03,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:02:03,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:02:03,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:02:03,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:02:03,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:02:03,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:02:03,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:02:03,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:02:03,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:02:03,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:02:03,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:02:03,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:02:03,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:02:03,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:02:03,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:02:03,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:02:03,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:02:03,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:02:03,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:02:03,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:02:03,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:02:03,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:02:03,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:02:03,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:02:03,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:02:03,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:02:03,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:02:03,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:02:03,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:02:03,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:02:03,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:02:03,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:02:03,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:02:03,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:02:03,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:02:03,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:02:03,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:02:03,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:02:03,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:02:03,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 20:02:03,120 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:02:03,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:02:03,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:02:03,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:02:03,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:02:03,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:02:03,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:02:03,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:02:03,123 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:02:03,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:02:03,124 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:02:03,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:02:03,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:02:03,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:02:03,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:02:03,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:02:03,125 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 20:02:03,125 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 20:02:03,125 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 20:02:03,125 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:02:03,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:02:03,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:02:03,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:02:03,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:02:03,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:02:03,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:02:03,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:02:03,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:02:03,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:02:03,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:02:03,126 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 20:02:03,127 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 20:02:03,127 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:02:03,127 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:02:03,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:02:03,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 20:02:03,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933072632c6a38270f958834ec21adc26eb3cd8e8e46c1ac850ead52e91fbd69 [2022-02-20 20:02:03,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:02:03,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:02:03,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:02:03,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:02:03,367 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:02:03,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c [2022-02-20 20:02:03,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a0e4048/2baba80873c840f3a6d76ad8080babe3/FLAG21bb97f17 [2022-02-20 20:02:03,902 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:02:03,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c [2022-02-20 20:02:03,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a0e4048/2baba80873c840f3a6d76ad8080babe3/FLAG21bb97f17 [2022-02-20 20:02:03,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a0e4048/2baba80873c840f3a6d76ad8080babe3 [2022-02-20 20:02:03,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:02:03,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:02:03,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:02:03,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:02:03,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:02:03,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:02:03" (1/1) ... [2022-02-20 20:02:03,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4934d4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:03, skipping insertion in model container [2022-02-20 20:02:03,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:02:03" (1/1) ... [2022-02-20 20:02:03,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:02:03,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:02:04,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[1997,2010] [2022-02-20 20:02:04,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[2366,2379] [2022-02-20 20:02:04,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:02:04,202 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:02:04,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[1997,2010] [2022-02-20 20:02:04,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_3a.c.cil.c[2366,2379] [2022-02-20 20:02:04,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:02:04,271 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:02:04,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04 WrapperNode [2022-02-20 20:02:04,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:02:04,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:02:04,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:02:04,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:02:04,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,325 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-02-20 20:02:04,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:02:04,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:02:04,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:02:04,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:02:04,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:02:04,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:02:04,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:02:04,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:02:04,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (1/1) ... [2022-02-20 20:02:04,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:02:04,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:02:04,392 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 20:02:04,403 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 20:02:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:02:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 20:02:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:02:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:02:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:02:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:02:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:02:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:02:04,512 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:02:04,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:02:07,042 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:02:07,048 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:02:07,048 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:02:07,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:02:07 BoogieIcfgContainer [2022-02-20 20:02:07,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:02:07,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:02:07,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:02:07,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:02:07,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:02:03" (1/3) ... [2022-02-20 20:02:07,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22304d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:02:07, skipping insertion in model container [2022-02-20 20:02:07,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:02:04" (2/3) ... [2022-02-20 20:02:07,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22304d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:02:07, skipping insertion in model container [2022-02-20 20:02:07,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:02:07" (3/3) ... [2022-02-20 20:02:07,054 INFO L111 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_3a.c.cil.c [2022-02-20 20:02:07,061 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:02:07,061 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:02:07,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:02:07,103 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 20:02:07,103 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:02:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 20:02:07,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:02:07,119 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:02:07,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:02:07,119 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:02:07,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:02:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-02-20 20:02:07,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:02:07,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569259291] [2022-02-20 20:02:07,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:02:07,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:02:07,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:02:07,134 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 20:02:07,135 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 20:02:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:02:07,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 20:02:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:02:07,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 20:02:07,543 INFO L290 TraceCheckUtils]: 0: Hoare triple {63#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(11bv32, 2bv32); {63#true} is VALID [2022-02-20 20:02:07,543 INFO L290 TraceCheckUtils]: 1: Hoare triple {63#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_#t~ret18#1; {63#true} is VALID [2022-02-20 20:02:07,544 INFO L290 TraceCheckUtils]: 2: Hoare triple {63#true} assume 0bv32 != main_#t~nondet16#1;havoc main_#t~nondet16#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.geq~FLOAT(main1_~IN~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.0)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {63#true} is VALID [2022-02-20 20:02:07,545 INFO L290 TraceCheckUtils]: 3: Hoare triple {63#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {64#false} is VALID [2022-02-20 20:02:07,546 INFO L290 TraceCheckUtils]: 4: Hoare triple {64#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.5), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.125), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0390625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {64#false} is VALID [2022-02-20 20:02:07,546 INFO L290 TraceCheckUtils]: 5: Hoare triple {64#false} assume !(~fp.geq~FLOAT(main1_~result~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~result~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.398))); {64#false} is VALID [2022-02-20 20:02:07,546 INFO L290 TraceCheckUtils]: 6: Hoare triple {64#false} assume !false; {64#false} is VALID [2022-02-20 20:02:07,547 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 20:02:07,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 20:02:07,548 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 20:02:07,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569259291] [2022-02-20 20:02:07,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569259291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:02:07,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:02:07,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:02:07,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370155087] [2022-02-20 20:02:07,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:02:07,554 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 20:02:07,554 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:02:07,556 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:07,824 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:02:07,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:02:07,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 20:02:07,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:02:07,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:02:07,859 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:10,428 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-02-20 20:02:10,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:02:10,429 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 20:02:10,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:02:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 173 transitions. [2022-02-20 20:02:10,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:10,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 173 transitions. [2022-02-20 20:02:10,453 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 173 transitions. [2022-02-20 20:02:11,096 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:02:11,103 INFO L225 Difference]: With dead ends: 115 [2022-02-20 20:02:11,103 INFO L226 Difference]: Without dead ends: 51 [2022-02-20 20:02:11,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:02:11,111 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 20:02:11,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:02:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-02-20 20:02:11,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-02-20 20:02:11,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:02:11,144 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:11,145 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:11,146 INFO L87 Difference]: Start difference. First operand 51 states. Second operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:11,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:11,155 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2022-02-20 20:02:11,155 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-02-20 20:02:11,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:02:11,157 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:02:11,159 INFO L74 IsIncluded]: Start isIncluded. First operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 51 states. [2022-02-20 20:02:11,160 INFO L87 Difference]: Start difference. First operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 51 states. [2022-02-20 20:02:11,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:11,168 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2022-02-20 20:02:11,169 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-02-20 20:02:11,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:02:11,170 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:02:11,170 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:02:11,170 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:02:11,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:02:11,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-02-20 20:02:11,180 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-02-20 20:02:11,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:02:11,182 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-02-20 20:02:11,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:02:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-02-20 20:02:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:02:11,185 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:02:11,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:02:11,204 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 20:02:11,390 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 20:02:11,390 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:02:11,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:02:11,391 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-02-20 20:02:11,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:02:11,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990764715] [2022-02-20 20:02:11,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:02:11,393 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:02:11,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:02:11,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 20:02:11,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 20:02:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:02:35,100 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:02:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:02:58,218 INFO L138 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-02-20 20:02:58,218 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:02:58,219 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 20:02:58,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 20:02:58,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-02-20 20:02:58,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 20:02:58,424 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 20:02:58,427 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:02:58,448 WARN L170 areAnnotationChecker]: base2fltENTRY has no Hoare annotation [2022-02-20 20:02:58,448 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 20:02:58,448 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-02-20 20:02:58,448 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:02:58,449 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: base2fltFINAL has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:58,450 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:58,451 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:58,452 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:58,452 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:02:58,453 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:02:58,453 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:02:58,453 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:02:58,453 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:02:58,453 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 20:02:58,453 WARN L170 areAnnotationChecker]: L281-1 has no Hoare annotation [2022-02-20 20:02:58,454 WARN L170 areAnnotationChecker]: L297 has no Hoare annotation [2022-02-20 20:02:58,454 WARN L170 areAnnotationChecker]: L282-1 has no Hoare annotation [2022-02-20 20:02:58,454 WARN L170 areAnnotationChecker]: L283-1 has no Hoare annotation [2022-02-20 20:02:58,454 WARN L170 areAnnotationChecker]: L284-1 has no Hoare annotation [2022-02-20 20:02:58,454 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:02:58,454 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L315 has no Hoare annotation [2022-02-20 20:02:58,456 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2022-02-20 20:02:58,457 WARN L170 areAnnotationChecker]: L318 has no Hoare annotation [2022-02-20 20:02:58,458 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:02:58,458 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:02:58,458 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 20:02:58,458 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 20:02:58,458 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2022-02-20 20:02:58,459 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:02:58,459 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:02:58,459 WARN L170 areAnnotationChecker]: L260 has no Hoare annotation [2022-02-20 20:02:58,459 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:02:58,459 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:02:58,460 WARN L170 areAnnotationChecker]: L287 has no Hoare annotation [2022-02-20 20:02:58,460 WARN L170 areAnnotationChecker]: L287 has no Hoare annotation [2022-02-20 20:02:58,460 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:02:58,460 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:02:58,460 WARN L170 areAnnotationChecker]: L287-2 has no Hoare annotation [2022-02-20 20:02:58,460 WARN L170 areAnnotationChecker]: L287-2 has no Hoare annotation [2022-02-20 20:02:58,460 WARN L170 areAnnotationChecker]: L290 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L290 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L298 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L298 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L290-2 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:02:58,461 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:02:58,462 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2022-02-20 20:02:58,462 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2022-02-20 20:02:58,462 WARN L170 areAnnotationChecker]: L301 has no Hoare annotation [2022-02-20 20:02:58,462 WARN L170 areAnnotationChecker]: L301 has no Hoare annotation [2022-02-20 20:02:58,462 WARN L170 areAnnotationChecker]: L301-2 has no Hoare annotation [2022-02-20 20:02:58,462 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 20:02:58,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:02:58 BoogieIcfgContainer [2022-02-20 20:02:58,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:02:58,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:02:58,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:02:58,465 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:02:58,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:02:07" (3/4) ... [2022-02-20 20:02:58,469 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-20 20:02:58,500 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 20:02:58,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:02:58,507 INFO L158 Benchmark]: Toolchain (without parser) took 54576.82ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 46.5MB in the beginning and 48.4MB in the end (delta: -2.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-02-20 20:02:58,508 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:02:58,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.49ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-02-20 20:02:58,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.60ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 42.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:58,514 INFO L158 Benchmark]: Boogie Preprocessor took 33.60ms. Allocated memory is still 67.1MB. Free memory was 42.2MB in the beginning and 40.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:58,515 INFO L158 Benchmark]: RCFGBuilder took 2689.02ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 44.2MB in the end (delta: -4.1MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-02-20 20:02:58,515 INFO L158 Benchmark]: TraceAbstraction took 51413.30ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 43.6MB in the beginning and 50.5MB in the end (delta: -6.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-02-20 20:02:58,515 INFO L158 Benchmark]: Witness Printer took 42.08ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 48.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:58,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.49ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.60ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 42.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.60ms. Allocated memory is still 67.1MB. Free memory was 42.2MB in the beginning and 40.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2689.02ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 44.2MB in the end (delta: -4.1MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * TraceAbstraction took 51413.30ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 43.6MB in the beginning and 50.5MB in the end (delta: -6.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 42.08ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 48.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] [L48] reach_error() VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] - UnprovableResult [Line: 60]: 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, 60 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 51.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 24.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-20 20:02:58,601 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE