./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_5a.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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 21:13:14,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 21:13:14,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 21:13:14,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 21:13:14,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 21:13:14,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 21:13:14,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 21:13:14,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 21:13:14,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 21:13:14,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 21:13:14,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 21:13:14,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 21:13:14,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 21:13:14,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 21:13:14,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 21:13:14,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 21:13:14,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 21:13:14,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 21:13:14,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 21:13:14,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 21:13:14,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 21:13:14,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 21:13:14,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 21:13:14,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 21:13:14,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 21:13:14,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 21:13:14,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 21:13:14,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 21:13:14,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 21:13:14,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 21:13:14,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 21:13:14,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 21:13:14,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 21:13:14,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 21:13:14,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 21:13:14,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 21:13:14,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 21:13:14,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 21:13:14,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 21:13:14,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 21:13:14,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 21:13:14,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 21:13:14,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 21:13:14,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 21:13:14,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 21:13:14,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 21:13:14,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 21:13:14,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 21:13:14,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 21:13:14,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 21:13:14,162 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 21:13:14,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 21:13:14,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 21:13:14,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 21:13:14,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 21:13:14,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 21:13:14,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 21:13:14,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 21:13:14,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 21:13:14,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 21:13:14,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 21:13:14,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 21:13:14,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 21:13:14,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 21:13:14,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 21:13:14,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 21:13:14,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:13:14,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 21:13:14,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 21:13:14,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 21:13:14,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 21:13:14,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 21:13:14,168 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 21:13:14,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 21:13:14,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 21:13:14,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 21:13:14,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2021-12-17 21:13:14,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 21:13:14,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 21:13:14,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 21:13:14,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 21:13:14,448 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 21:13:14,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-12-17 21:13:14,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a64dbb18d/eabd9592c6834589b612d06d6509b427/FLAG4439bdaab [2021-12-17 21:13:14,920 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 21:13:14,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-12-17 21:13:14,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a64dbb18d/eabd9592c6834589b612d06d6509b427/FLAG4439bdaab [2021-12-17 21:13:15,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a64dbb18d/eabd9592c6834589b612d06d6509b427 [2021-12-17 21:13:15,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 21:13:15,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 21:13:15,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 21:13:15,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 21:13:15,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 21:13:15,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6252969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15, skipping insertion in model container [2021-12-17 21:13:15,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 21:13:15,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 21:13:15,596 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_3+soft_float_5a.c.cil.c[1999,2012] [2021-12-17 21:13:15,601 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_3+soft_float_5a.c.cil.c[2368,2381] [2021-12-17 21:13:15,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:13:15,655 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 21:13:15,677 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_3+soft_float_5a.c.cil.c[1999,2012] [2021-12-17 21:13:15,679 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_3+soft_float_5a.c.cil.c[2368,2381] [2021-12-17 21:13:15,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:13:15,719 INFO L208 MainTranslator]: Completed translation [2021-12-17 21:13:15,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15 WrapperNode [2021-12-17 21:13:15,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 21:13:15,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 21:13:15,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 21:13:15,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 21:13:15,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,762 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2021-12-17 21:13:15,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 21:13:15,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 21:13:15,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 21:13:15,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 21:13:15,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 21:13:15,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 21:13:15,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 21:13:15,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 21:13:15,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (1/1) ... [2021-12-17 21:13:15,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:13:15,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 21:13:15,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 21:13:15,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 21:13:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 21:13:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-17 21:13:15,914 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-17 21:13:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 21:13:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 21:13:15,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 21:13:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-17 21:13:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-17 21:13:15,983 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 21:13:15,984 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 21:13:16,217 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 21:13:16,222 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 21:13:16,222 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 21:13:16,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:13:16 BoogieIcfgContainer [2021-12-17 21:13:16,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 21:13:16,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 21:13:16,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 21:13:16,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 21:13:16,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:13:15" (1/3) ... [2021-12-17 21:13:16,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b514f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:13:16, skipping insertion in model container [2021-12-17 21:13:16,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:15" (2/3) ... [2021-12-17 21:13:16,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b514f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:13:16, skipping insertion in model container [2021-12-17 21:13:16,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:13:16" (3/3) ... [2021-12-17 21:13:16,229 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2021-12-17 21:13:16,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 21:13:16,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-17 21:13:16,282 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 21:13:16,286 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 21:13:16,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-17 21:13:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2021-12-17 21:13:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:13:16,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:13:16,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:13:16,300 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:13:16,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:13:16,303 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-12-17 21:13:16,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 21:13:16,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089801619] [2021-12-17 21:13:16,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:13:16,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 21:13:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 21:13:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 21:13:16,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 21:13:16,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089801619] [2021-12-17 21:13:16,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089801619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 21:13:16,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 21:13:16,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 21:13:16,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208270319] [2021-12-17 21:13:16,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 21:13:16,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 21:13:16,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 21:13:16,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 21:13:16,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 21:13:16,428 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2021-12-17 21:13:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 21:13:16,448 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2021-12-17 21:13:16,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 21:13:16,451 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 [2021-12-17 21:13:16,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 21:13:16,458 INFO L225 Difference]: With dead ends: 117 [2021-12-17 21:13:16,458 INFO L226 Difference]: Without dead ends: 52 [2021-12-17 21:13:16,461 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 [2021-12-17 21:13:16,465 INFO L933 BasicCegarLoop]: 82 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, 82 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 [2021-12-17 21:13:16,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 21:13:16,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-17 21:13:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-17 21:13:16,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 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) [2021-12-17 21:13:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2021-12-17 21:13:16,504 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2021-12-17 21:13:16,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 21:13:16,505 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-12-17 21:13:16,505 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) [2021-12-17 21:13:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2021-12-17 21:13:16,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:13:16,506 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:13:16,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:13:16,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 21:13:16,506 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:13:16,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:13:16,508 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-12-17 21:13:16,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 21:13:16,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760369601] [2021-12-17 21:13:16,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:13:16,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 21:13:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:13:16,537 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 21:13:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:13:16,557 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 21:13:16,558 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 21:13:16,559 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-17 21:13:16,561 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-17 21:13:16,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 21:13:16,564 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 21:13:16,565 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 21:13:16,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 09:13:16 BoogieIcfgContainer [2021-12-17 21:13:16,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 21:13:16,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 21:13:16,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 21:13:16,582 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 21:13:16,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:13:16" (3/4) ... [2021-12-17 21:13:16,585 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 21:13:16,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 21:13:16,586 INFO L158 Benchmark]: Toolchain (without parser) took 1253.66ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 76.8MB in the beginning and 98.7MB in the end (delta: -21.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-12-17 21:13:16,586 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:13:16,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.87ms. Allocated memory is still 104.9MB. Free memory was 76.5MB in the beginning and 77.8MB in the end (delta: -1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 21:13:16,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.79ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 76.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:13:16,590 INFO L158 Benchmark]: Boogie Preprocessor took 56.80ms. Allocated memory is still 104.9MB. Free memory was 76.0MB in the beginning and 74.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:13:16,591 INFO L158 Benchmark]: RCFGBuilder took 402.73ms. Allocated memory is still 104.9MB. Free memory was 74.3MB in the beginning and 61.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 21:13:16,591 INFO L158 Benchmark]: TraceAbstraction took 356.79ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 60.6MB in the beginning and 98.7MB in the end (delta: -38.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:13:16,591 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 136.3MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:13:16,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.87ms. Allocated memory is still 104.9MB. Free memory was 76.5MB in the beginning and 77.8MB in the end (delta: -1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.79ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 76.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.80ms. Allocated memory is still 104.9MB. Free memory was 76.0MB in the beginning and 74.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.73ms. Allocated memory is still 104.9MB. Free memory was 74.3MB in the beginning and 61.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 356.79ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 60.6MB in the beginning and 98.7MB in the end (delta: -38.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 136.3MB. Free memory is still 98.7MB. 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: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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 < 1.39843f) 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, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 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, 82 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=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 [2021-12-17 21:13:16,634 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 -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_3+soft_float_5a.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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 21:13:18,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 21:13:18,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 21:13:18,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 21:13:18,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 21:13:18,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 21:13:18,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 21:13:18,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 21:13:18,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 21:13:18,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 21:13:18,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 21:13:18,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 21:13:18,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 21:13:18,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 21:13:18,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 21:13:18,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 21:13:18,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 21:13:18,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 21:13:18,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 21:13:18,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 21:13:18,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 21:13:18,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 21:13:18,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 21:13:18,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 21:13:18,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 21:13:18,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 21:13:18,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 21:13:18,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 21:13:18,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 21:13:18,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 21:13:18,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 21:13:18,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 21:13:18,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 21:13:18,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 21:13:18,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 21:13:18,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 21:13:18,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 21:13:18,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 21:13:18,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 21:13:18,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 21:13:18,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 21:13:18,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 21:13:18,439 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 21:13:18,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 21:13:18,442 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 21:13:18,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 21:13:18,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 21:13:18,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 21:13:18,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 21:13:18,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 21:13:18,444 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 21:13:18,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 21:13:18,444 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 21:13:18,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 21:13:18,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 21:13:18,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 21:13:18,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 21:13:18,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 21:13:18,445 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 21:13:18,445 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 21:13:18,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 21:13:18,446 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 21:13:18,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 21:13:18,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 21:13:18,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 21:13:18,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 21:13:18,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 21:13:18,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 21:13:18,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:13:18,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 21:13:18,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 21:13:18,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 21:13:18,448 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 21:13:18,448 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 21:13:18,448 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 21:13:18,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 21:13:18,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 21:13:18,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 21:13:18,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 21:13:18,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2021-12-17 21:13:18,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 21:13:18,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 21:13:18,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 21:13:18,745 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 21:13:18,745 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 21:13:18,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-12-17 21:13:18,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f89cec92f/1dfd278866734d3ab4205ccd6021c06c/FLAG09e8f1396 [2021-12-17 21:13:19,204 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 21:13:19,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-12-17 21:13:19,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f89cec92f/1dfd278866734d3ab4205ccd6021c06c/FLAG09e8f1396 [2021-12-17 21:13:19,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f89cec92f/1dfd278866734d3ab4205ccd6021c06c [2021-12-17 21:13:19,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 21:13:19,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 21:13:19,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 21:13:19,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 21:13:19,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 21:13:19,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a9ff81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19, skipping insertion in model container [2021-12-17 21:13:19,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 21:13:19,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 21:13:19,386 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_3+soft_float_5a.c.cil.c[1999,2012] [2021-12-17 21:13:19,389 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_3+soft_float_5a.c.cil.c[2368,2381] [2021-12-17 21:13:19,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:13:19,470 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 21:13:19,481 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_3+soft_float_5a.c.cil.c[1999,2012] [2021-12-17 21:13:19,482 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_3+soft_float_5a.c.cil.c[2368,2381] [2021-12-17 21:13:19,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:13:19,507 INFO L208 MainTranslator]: Completed translation [2021-12-17 21:13:19,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19 WrapperNode [2021-12-17 21:13:19,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 21:13:19,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 21:13:19,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 21:13:19,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 21:13:19,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,536 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2021-12-17 21:13:19,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 21:13:19,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 21:13:19,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 21:13:19,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 21:13:19,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 21:13:19,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 21:13:19,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 21:13:19,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 21:13:19,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (1/1) ... [2021-12-17 21:13:19,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:13:19,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 21:13:19,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 21:13:19,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 21:13:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 21:13:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 21:13:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-17 21:13:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-17 21:13:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 21:13:19,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 21:13:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-17 21:13:19,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-17 21:13:19,694 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 21:13:19,696 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 21:13:22,194 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 21:13:22,203 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 21:13:22,204 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 21:13:22,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:13:22 BoogieIcfgContainer [2021-12-17 21:13:22,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 21:13:22,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 21:13:22,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 21:13:22,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 21:13:22,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:13:19" (1/3) ... [2021-12-17 21:13:22,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690467a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:13:22, skipping insertion in model container [2021-12-17 21:13:22,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:13:19" (2/3) ... [2021-12-17 21:13:22,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690467a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:13:22, skipping insertion in model container [2021-12-17 21:13:22,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:13:22" (3/3) ... [2021-12-17 21:13:22,214 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2021-12-17 21:13:22,218 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 21:13:22,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-17 21:13:22,257 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 21:13:22,263 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 21:13:22,263 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-17 21:13:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2021-12-17 21:13:22,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:13:22,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:13:22,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:13:22,281 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:13:22,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:13:22,285 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-12-17 21:13:22,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 21:13:22,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786687073] [2021-12-17 21:13:22,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:13:22,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 21:13:22,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 21:13:22,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 21:13:22,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 21:13:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 21:13:22,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 21:13:22,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 21:13:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 21:13:22,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 21:13:22,698 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 21:13:22,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786687073] [2021-12-17 21:13:22,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786687073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 21:13:22,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 21:13:22,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 21:13:22,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914189165] [2021-12-17 21:13:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 21:13:22,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 21:13:22,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 21:13:22,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 21:13:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 21:13:22,731 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2021-12-17 21:13:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 21:13:22,759 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2021-12-17 21:13:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 21:13:22,760 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 [2021-12-17 21:13:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 21:13:22,767 INFO L225 Difference]: With dead ends: 117 [2021-12-17 21:13:22,767 INFO L226 Difference]: Without dead ends: 52 [2021-12-17 21:13:22,770 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 [2021-12-17 21:13:22,772 INFO L933 BasicCegarLoop]: 82 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, 82 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 [2021-12-17 21:13:22,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 21:13:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-17 21:13:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-17 21:13:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 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) [2021-12-17 21:13:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2021-12-17 21:13:22,804 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2021-12-17 21:13:22,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 21:13:22,805 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-12-17 21:13:22,805 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) [2021-12-17 21:13:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2021-12-17 21:13:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:13:22,805 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:13:22,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:13:22,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-17 21:13:23,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 21:13:23,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:13:23,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:13:23,021 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-12-17 21:13:23,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 21:13:23,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680575695] [2021-12-17 21:13:23,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:13:23,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 21:13:23,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 21:13:23,029 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) [2021-12-17 21:13:23,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 21:16:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:16:46,644 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 21:19:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:19:56,221 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-17 21:19:56,221 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 21:19:56,223 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-17 21:19:56,224 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-17 21:19:56,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-17 21:19:56,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 21:19:56,427 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 21:19:56,430 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 21:19:56,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 09:19:56 BoogieIcfgContainer [2021-12-17 21:19:56,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 21:19:56,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 21:19:56,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 21:19:56,444 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 21:19:56,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:13:22" (3/4) ... [2021-12-17 21:19:56,445 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 21:19:56,474 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 21:19:56,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 21:19:56,475 INFO L158 Benchmark]: Toolchain (without parser) took 397239.48ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 45.8MB in the beginning and 37.0MB in the end (delta: 8.8MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2021-12-17 21:19:56,475 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:19:56,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.42ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 44.5MB in the end (delta: 938.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 21:19:56,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.20ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 42.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:19:56,476 INFO L158 Benchmark]: Boogie Preprocessor took 23.98ms. Allocated memory is still 65.0MB. Free memory was 42.4MB in the beginning and 40.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:19:56,476 INFO L158 Benchmark]: RCFGBuilder took 2644.06ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 40.8MB in the beginning and 64.3MB in the end (delta: -23.5MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-12-17 21:19:56,480 INFO L158 Benchmark]: TraceAbstraction took 394235.11ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 39.1MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-17 21:19:56,480 INFO L158 Benchmark]: Witness Printer took 31.16ms. Allocated memory is still 86.0MB. Free memory was 38.6MB in the beginning and 37.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:19:56,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.42ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 44.5MB in the end (delta: 938.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.20ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 42.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.98ms. Allocated memory is still 65.0MB. Free memory was 42.4MB in the beginning and 40.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2644.06ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 40.8MB in the beginning and 64.3MB in the end (delta: -23.5MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 394235.11ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 39.1MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 31.16ms. Allocated memory is still 86.0MB. Free memory was 38.6MB in the beginning and 37.0MB in the end (delta: 1.6MB). 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: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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=0.9999864101409912, result=1.398433804512024, x=0.9999864101409912] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999864101409912, result=1.398433804512024, x=0.9999864101409912] [L48] reach_error() VAL [IN=0.9999864101409912, result=1.398433804512024, x=0.9999864101409912] - 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, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 394.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 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, 82 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=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 203.9s 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! [2021-12-17 21:19:56,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE