./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_1-2a.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_1-2a.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 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 21:12:07,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 21:12:07,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 21:12:07,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 21:12:07,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 21:12:07,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 21:12:07,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 21:12:07,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 21:12:07,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 21:12:07,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 21:12:07,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 21:12:07,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 21:12:07,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 21:12:07,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 21:12:07,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 21:12:07,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 21:12:07,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 21:12:07,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 21:12:07,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 21:12:07,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 21:12:07,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 21:12:07,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 21:12:07,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 21:12:07,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 21:12:07,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 21:12:07,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 21:12:07,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 21:12:07,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 21:12:07,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 21:12:07,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 21:12:07,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 21:12:07,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 21:12:07,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 21:12:07,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 21:12:07,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 21:12:07,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 21:12:07,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 21:12:07,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 21:12:07,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 21:12:07,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 21:12:07,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 21:12:07,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 21:12:07,764 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 21:12:07,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 21:12:07,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 21:12:07,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 21:12:07,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 21:12:07,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 21:12:07,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 21:12:07,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 21:12:07,769 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 21:12:07,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 21:12:07,770 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 21:12:07,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 21:12:07,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 21:12:07,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 21:12:07,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 21:12:07,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 21:12:07,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 21:12:07,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:12:07,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 21:12:07,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 21:12:07,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 21:12:07,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 21:12:07,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 21:12:07,772 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 21:12:07,773 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 21:12:07,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 21:12:07,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 21:12:07,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 [2021-12-17 21:12:07,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 21:12:08,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 21:12:08,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 21:12:08,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 21:12:08,005 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 21:12:08,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2021-12-17 21:12:08,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f52091c6/356de736ce314ae382b5a0f85ff59991/FLAG9a297b67c [2021-12-17 21:12:08,443 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 21:12:08,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2021-12-17 21:12:08,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f52091c6/356de736ce314ae382b5a0f85ff59991/FLAG9a297b67c [2021-12-17 21:12:08,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f52091c6/356de736ce314ae382b5a0f85ff59991 [2021-12-17 21:12:08,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 21:12:08,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 21:12:08,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 21:12:08,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 21:12:08,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 21:12:08,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21641455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08, skipping insertion in model container [2021-12-17 21:12:08,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 21:12:08,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 21:12:08,642 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_1-2a.c.cil.c[1999,2012] [2021-12-17 21:12:08,651 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_1-2a.c.cil.c[2393,2406] [2021-12-17 21:12:08,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:12:08,704 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 21:12:08,713 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_1-2a.c.cil.c[1999,2012] [2021-12-17 21:12:08,714 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_1-2a.c.cil.c[2393,2406] [2021-12-17 21:12:08,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:12:08,742 INFO L208 MainTranslator]: Completed translation [2021-12-17 21:12:08,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08 WrapperNode [2021-12-17 21:12:08,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 21:12:08,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 21:12:08,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 21:12:08,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 21:12:08,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,772 INFO L137 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 169 [2021-12-17 21:12:08,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 21:12:08,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 21:12:08,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 21:12:08,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 21:12:08,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 21:12:08,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 21:12:08,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 21:12:08,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 21:12:08,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (1/1) ... [2021-12-17 21:12:08,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:12:08,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 21:12:08,826 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 21:12:08,853 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 21:12:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 21:12:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-17 21:12:08,876 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-17 21:12:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 21:12:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 21:12:08,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 21:12:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-17 21:12:08,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-17 21:12:08,952 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 21:12:08,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 21:12:09,190 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 21:12:09,195 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 21:12:09,195 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 21:12:09,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:12:09 BoogieIcfgContainer [2021-12-17 21:12:09,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 21:12:09,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 21:12:09,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 21:12:09,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 21:12:09,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:12:08" (1/3) ... [2021-12-17 21:12:09,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0c2b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:12:09, skipping insertion in model container [2021-12-17 21:12:09,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:08" (2/3) ... [2021-12-17 21:12:09,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0c2b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:12:09, skipping insertion in model container [2021-12-17 21:12:09,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:12:09" (3/3) ... [2021-12-17 21:12:09,208 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_1-2a.c.cil.c [2021-12-17 21:12:09,212 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 21:12:09,212 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-17 21:12:09,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 21:12:09,250 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 21:12:09,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-17 21:12:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 68 states have (on average 1.588235294117647) internal successors, (108), 72 states have internal predecessors, (108), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 21:12:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:12:09,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:12:09,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:12:09,265 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:12:09,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:12:09,269 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-12-17 21:12:09,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 21:12:09,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298795970] [2021-12-17 21:12:09,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:12:09,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 21:12:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 21:12:09,354 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 21:12:09,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 21:12:09,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298795970] [2021-12-17 21:12:09,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298795970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 21:12:09,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 21:12:09,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 21:12:09,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675686001] [2021-12-17 21:12:09,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 21:12:09,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 21:12:09,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 21:12:09,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 21:12:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 21:12:09,383 INFO L87 Difference]: Start difference. First operand has 81 states, 68 states have (on average 1.588235294117647) internal successors, (108), 72 states have internal predecessors, (108), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 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 21:12:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 21:12:09,414 INFO L93 Difference]: Finished difference Result 157 states and 248 transitions. [2021-12-17 21:12:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 21:12:09,416 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 21:12:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 21:12:09,425 INFO L225 Difference]: With dead ends: 157 [2021-12-17 21:12:09,425 INFO L226 Difference]: Without dead ends: 74 [2021-12-17 21:12:09,428 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 21:12:09,431 INFO L933 BasicCegarLoop]: 116 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, 116 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 21:12:09,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 21:12:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-17 21:12:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-17 21:12:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 65 states have internal predecessors, (92), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 21:12:09,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 107 transitions. [2021-12-17 21:12:09,469 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 107 transitions. Word has length 7 [2021-12-17 21:12:09,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 21:12:09,470 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 107 transitions. [2021-12-17 21:12:09,470 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 21:12:09,470 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 107 transitions. [2021-12-17 21:12:09,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:12:09,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:12:09,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:12:09,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 21:12:09,472 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:12:09,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:12:09,474 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-12-17 21:12:09,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 21:12:09,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121555576] [2021-12-17 21:12:09,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:12:09,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 21:12:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:12:09,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 21:12:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:12:09,540 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 21:12:09,541 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 21:12:09,542 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-17 21:12:09,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-17 21:12:09,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 21:12:09,547 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 21:12:09,549 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 21:12:09,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 09:12:09 BoogieIcfgContainer [2021-12-17 21:12:09,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 21:12:09,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 21:12:09,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 21:12:09,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 21:12:09,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:12:09" (3/4) ... [2021-12-17 21:12:09,571 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 21:12:09,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 21:12:09,573 INFO L158 Benchmark]: Toolchain (without parser) took 1100.02ms. Allocated memory is still 119.5MB. Free memory was 81.1MB in the beginning and 47.1MB in the end (delta: 34.0MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2021-12-17 21:12:09,573 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:12:09,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.38ms. Allocated memory is still 119.5MB. Free memory was 81.0MB in the beginning and 91.7MB in the end (delta: -10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 21:12:09,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.01ms. Allocated memory is still 119.5MB. Free memory was 91.7MB in the beginning and 89.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:12:09,577 INFO L158 Benchmark]: Boogie Preprocessor took 18.56ms. Allocated memory is still 119.5MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:12:09,577 INFO L158 Benchmark]: RCFGBuilder took 403.94ms. Allocated memory is still 119.5MB. Free memory was 88.0MB in the beginning and 72.3MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 21:12:09,578 INFO L158 Benchmark]: TraceAbstraction took 370.33ms. Allocated memory is still 119.5MB. Free memory was 71.8MB in the beginning and 47.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-17 21:12:09,578 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 119.5MB. Free memory was 47.6MB in the beginning and 47.1MB in the end (delta: 503.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:12:09,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.38ms. Allocated memory is still 119.5MB. Free memory was 81.0MB in the beginning and 91.7MB in the end (delta: -10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.01ms. Allocated memory is still 119.5MB. Free memory was 91.7MB in the beginning and 89.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.56ms. Allocated memory is still 119.5MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.94ms. Allocated memory is still 119.5MB. Free memory was 88.0MB in the beginning and 72.3MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 370.33ms. Allocated memory is still 119.5MB. Free memory was 71.8MB in the beginning and 47.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 119.5MB. Free memory was 47.6MB in the beginning and 47.1MB in the end (delta: 503.2kB). 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: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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: 61]: 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, 81 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, 116 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, 116 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=81occurred 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 21:12:09,625 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_1-2a.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 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 21:12:11,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 21:12:11,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 21:12:11,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 21:12:11,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 21:12:11,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 21:12:11,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 21:12:11,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 21:12:11,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 21:12:11,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 21:12:11,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 21:12:11,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 21:12:11,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 21:12:11,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 21:12:11,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 21:12:11,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 21:12:11,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 21:12:11,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 21:12:11,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 21:12:11,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 21:12:11,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 21:12:11,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 21:12:11,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 21:12:11,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 21:12:11,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 21:12:11,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 21:12:11,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 21:12:11,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 21:12:11,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 21:12:11,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 21:12:11,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 21:12:11,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 21:12:11,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 21:12:11,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 21:12:11,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 21:12:11,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 21:12:11,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 21:12:11,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 21:12:11,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 21:12:11,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 21:12:11,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 21:12:11,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 21:12:11,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 21:12:11,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 21:12:11,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 21:12:11,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 21:12:11,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 21:12:11,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 21:12:11,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 21:12:11,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 21:12:11,427 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 21:12:11,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 21:12:11,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 21:12:11,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 21:12:11,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 21:12:11,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 21:12:11,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 21:12:11,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 21:12:11,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 21:12:11,429 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 21:12:11,429 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 21:12:11,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 21:12:11,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 21:12:11,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 21:12:11,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 21:12:11,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 21:12:11,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 21:12:11,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 21:12:11,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:12:11,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 21:12:11,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 21:12:11,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 21:12:11,430 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 21:12:11,431 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 21:12:11,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 21:12:11,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 21:12:11,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 21:12:11,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 21:12:11,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 21:12:11,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 [2021-12-17 21:12:11,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 21:12:11,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 21:12:11,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 21:12:11,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 21:12:11,693 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 21:12:11,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2021-12-17 21:12:11,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31e8a577/e91acfef9411483e82a8a30061349826/FLAGcba56b9b2 [2021-12-17 21:12:12,138 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 21:12:12,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2021-12-17 21:12:12,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31e8a577/e91acfef9411483e82a8a30061349826/FLAGcba56b9b2 [2021-12-17 21:12:12,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31e8a577/e91acfef9411483e82a8a30061349826 [2021-12-17 21:12:12,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 21:12:12,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 21:12:12,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 21:12:12,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 21:12:12,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 21:12:12,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f248d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12, skipping insertion in model container [2021-12-17 21:12:12,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 21:12:12,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 21:12:12,737 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_1-2a.c.cil.c[1999,2012] [2021-12-17 21:12:12,740 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_1-2a.c.cil.c[2393,2406] [2021-12-17 21:12:12,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:12:12,791 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 21:12:12,804 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_1-2a.c.cil.c[1999,2012] [2021-12-17 21:12:12,808 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_1-2a.c.cil.c[2393,2406] [2021-12-17 21:12:12,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 21:12:12,839 INFO L208 MainTranslator]: Completed translation [2021-12-17 21:12:12,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12 WrapperNode [2021-12-17 21:12:12,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 21:12:12,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 21:12:12,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 21:12:12,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 21:12:12,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,867 INFO L137 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 165 [2021-12-17 21:12:12,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 21:12:12,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 21:12:12,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 21:12:12,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 21:12:12,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 21:12:12,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 21:12:12,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 21:12:12,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 21:12:12,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (1/1) ... [2021-12-17 21:12:12,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 21:12:12,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 21:12:12,924 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 21:12:12,974 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 21:12:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 21:12:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 21:12:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-17 21:12:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-17 21:12:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 21:12:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 21:12:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-17 21:12:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-17 21:12:13,071 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 21:12:13,072 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 21:12:15,600 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 21:12:15,605 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 21:12:15,605 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 21:12:15,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:12:15 BoogieIcfgContainer [2021-12-17 21:12:15,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 21:12:15,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 21:12:15,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 21:12:15,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 21:12:15,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:12:12" (1/3) ... [2021-12-17 21:12:15,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164aad7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:12:15, skipping insertion in model container [2021-12-17 21:12:15,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:12:12" (2/3) ... [2021-12-17 21:12:15,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164aad7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:12:15, skipping insertion in model container [2021-12-17 21:12:15,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:12:15" (3/3) ... [2021-12-17 21:12:15,612 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_1-2a.c.cil.c [2021-12-17 21:12:15,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 21:12:15,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-17 21:12:15,646 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 21:12:15,650 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 21:12:15,651 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-17 21:12:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 68 states have (on average 1.588235294117647) internal successors, (108), 72 states have internal predecessors, (108), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 21:12:15,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:12:15,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:12:15,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:12:15,664 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:12:15,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:12:15,668 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-12-17 21:12:15,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 21:12:15,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357578952] [2021-12-17 21:12:15,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:12:15,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 21:12:15,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 21:12:15,678 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 21:12:15,679 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 21:12:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 21:12:16,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 21:12:16,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 21:12:16,085 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 21:12:16,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 21:12:16,086 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 21:12:16,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357578952] [2021-12-17 21:12:16,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357578952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 21:12:16,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 21:12:16,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 21:12:16,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85539511] [2021-12-17 21:12:16,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 21:12:16,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 21:12:16,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 21:12:16,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 21:12:16,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 21:12:16,120 INFO L87 Difference]: Start difference. First operand has 81 states, 68 states have (on average 1.588235294117647) internal successors, (108), 72 states have internal predecessors, (108), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 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 21:12:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 21:12:16,152 INFO L93 Difference]: Finished difference Result 157 states and 248 transitions. [2021-12-17 21:12:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 21:12:16,154 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 21:12:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 21:12:16,161 INFO L225 Difference]: With dead ends: 157 [2021-12-17 21:12:16,161 INFO L226 Difference]: Without dead ends: 74 [2021-12-17 21:12:16,164 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 21:12:16,167 INFO L933 BasicCegarLoop]: 116 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, 116 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 21:12:16,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 21:12:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-17 21:12:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-17 21:12:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 65 states have internal predecessors, (92), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 21:12:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 107 transitions. [2021-12-17 21:12:16,219 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 107 transitions. Word has length 7 [2021-12-17 21:12:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 21:12:16,220 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 107 transitions. [2021-12-17 21:12:16,220 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 21:12:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 107 transitions. [2021-12-17 21:12:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 21:12:16,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 21:12:16,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 21:12:16,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 21:12:16,438 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 21:12:16,439 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 21:12:16,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 21:12:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-12-17 21:12:16,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 21:12:16,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147354476] [2021-12-17 21:12:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 21:12:16,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 21:12:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 21:12:16,442 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 21:12:16,444 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 21:14:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:14:48,738 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 21:19:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 21:19:52,260 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-17 21:19:52,261 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 21:19:52,262 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-17 21:19:52,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-17 21:19:52,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 21:19:52,464 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 21:19:52,466 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 21:19:52,469 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 21:19:52,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 09:19:52 BoogieIcfgContainer [2021-12-17 21:19:52,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 21:19:52,484 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 21:19:52,484 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 21:19:52,484 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 21:19:52,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:12:15" (3/4) ... [2021-12-17 21:19:52,486 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 21:19:52,506 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 21:19:52,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 21:19:52,507 INFO L158 Benchmark]: Toolchain (without parser) took 459954.64ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 48.6MB in the beginning and 61.9MB in the end (delta: -13.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-12-17 21:19:52,507 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 50.2MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:19:52,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.74ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 45.7MB in the end (delta: 2.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-12-17 21:19:52,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.46ms. Allocated memory is still 69.2MB. Free memory was 45.5MB in the beginning and 43.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:19:52,508 INFO L158 Benchmark]: Boogie Preprocessor took 20.97ms. Allocated memory is still 69.2MB. Free memory was 43.6MB in the beginning and 41.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 21:19:52,509 INFO L158 Benchmark]: RCFGBuilder took 2716.62ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 45.3MB in the end (delta: -3.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2021-12-17 21:19:52,509 INFO L158 Benchmark]: TraceAbstraction took 456875.78ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 44.7MB in the beginning and 63.6MB in the end (delta: -18.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-17 21:19:52,509 INFO L158 Benchmark]: Witness Printer took 22.80ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 21:19:52,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 50.2MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.74ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 45.7MB in the end (delta: 2.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.46ms. Allocated memory is still 69.2MB. Free memory was 45.5MB in the beginning and 43.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.97ms. Allocated memory is still 69.2MB. Free memory was 43.6MB in the beginning and 41.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2716.62ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 45.3MB in the end (delta: -3.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 456875.78ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 44.7MB in the beginning and 63.6MB in the end (delta: -18.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 22.80ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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=0.9999843835830688, result=1.398432970046997, x=0.9999843835830688] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999843835830688, result=1.398432970046997, x=0.9999843835830688] [L48] reach_error() VAL [IN=0.9999843835830688, result=1.398432970046997, x=0.9999843835830688] - UnprovableResult [Line: 61]: 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, 81 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 456.8s, 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, 116 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, 116 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=81occurred 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, 152.6s 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 21:19:52,568 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