./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_5+soft_float_2a.c.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_5+soft_float_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 022d3c5901739211c5eb00a5826c62b3632d6c52c21250401c080cec1ded6145 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:03:28,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:03:28,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:03:28,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:03:28,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:03:28,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:03:28,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:03:28,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:03:28,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:03:28,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:03:28,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:03:28,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:03:28,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:03:28,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:03:28,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:03:28,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:03:28,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:03:28,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:03:28,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:03:28,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:03:28,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:03:28,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:03:28,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:03:28,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:03:28,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:03:28,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:03:28,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:03:28,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:03:28,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:03:28,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:03:28,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:03:28,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:03:28,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:03:28,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:03:28,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:03:28,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:03:28,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:03:28,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:03:28,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:03:28,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:03:28,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:03:28,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 20:03:28,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:03:28,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:03:28,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:03:28,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:03:28,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:03:28,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:03:28,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:03:28,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:03:28,586 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:03:28,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:03:28,586 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:03:28,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 20:03:28,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:03:28,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:03:28,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:03:28,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:03:28,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:03:28,588 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:03:28,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:03:28,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:03:28,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:03:28,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:03:28,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:03:28,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:03:28,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:28,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:03:28,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:03:28,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:03:28,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 20:03:28,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 20:03:28,590 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:03:28,591 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:03:28,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:03:28,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022d3c5901739211c5eb00a5826c62b3632d6c52c21250401c080cec1ded6145 [2022-02-20 20:03:28,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:03:28,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:03:28,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:03:28,819 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:03:28,819 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:03:28,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_5+soft_float_2a.c.cil.c [2022-02-20 20:03:28,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caeb2545e/fbc95791e8e8427993b46a1fdd0c8777/FLAG78bac5a85 [2022-02-20 20:03:29,294 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:03:29,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_2a.c.cil.c [2022-02-20 20:03:29,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caeb2545e/fbc95791e8e8427993b46a1fdd0c8777/FLAG78bac5a85 [2022-02-20 20:03:29,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caeb2545e/fbc95791e8e8427993b46a1fdd0c8777 [2022-02-20 20:03:29,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:03:29,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:03:29,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:29,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:03:29,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:03:29,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:29" (1/1) ... [2022-02-20 20:03:29,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ac982e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:29, skipping insertion in model container [2022-02-20 20:03:29,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:29" (1/1) ... [2022-02-20 20:03:29,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:03:29,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:03:29,927 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_5+soft_float_2a.c.cil.c[1998,2011] [2022-02-20 20:03:29,931 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_5+soft_float_2a.c.cil.c[2367,2380] [2022-02-20 20:03:29,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:30,000 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:03:30,017 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_5+soft_float_2a.c.cil.c[1998,2011] [2022-02-20 20:03:30,019 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_5+soft_float_2a.c.cil.c[2367,2380] [2022-02-20 20:03:30,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:30,086 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:03:30,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30 WrapperNode [2022-02-20 20:03:30,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:30,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:30,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:03:30,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:03:30,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,138 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-02-20 20:03:30,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:30,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:03:30,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:03:30,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:03:30,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:03:30,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:03:30,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:03:30,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:03:30,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (1/1) ... [2022-02-20 20:03:30,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:30,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:03:30,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 20:03:30,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 20:03:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:03:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:03:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:03:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 20:03:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:03:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:03:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:03:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:03:30,312 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:03:30,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:03:30,849 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:03:30,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:03:30,857 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:03:30,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:30 BoogieIcfgContainer [2022-02-20 20:03:30,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:03:30,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:03:30,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:03:30,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:03:30,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:03:29" (1/3) ... [2022-02-20 20:03:30,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14432de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:30, skipping insertion in model container [2022-02-20 20:03:30,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:30" (2/3) ... [2022-02-20 20:03:30,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14432de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:30, skipping insertion in model container [2022-02-20 20:03:30,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:30" (3/3) ... [2022-02-20 20:03:30,867 INFO L111 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_2a.c.cil.c [2022-02-20 20:03:30,871 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:03:30,871 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:03:30,912 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:03:30,916 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 20:03:30,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:03:30,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 20:03:30,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:30,938 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:30,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:30,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:30,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:30,943 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-02-20 20:03:30,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:03:30,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310448138] [2022-02-20 20:03:30,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:30,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:03:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:03:31,076 INFO L290 TraceCheckUtils]: 0: Hoare triple {100#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2); {100#true} is VALID [2022-02-20 20:03:31,077 INFO L290 TraceCheckUtils]: 1: Hoare triple {100#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet30#1, main_#t~ret31#1, main_#t~ret32#1;assume -2147483648 <= main_#t~nondet30#1 && main_#t~nondet30#1 <= 2147483647; {100#true} is VALID [2022-02-20 20:03:31,077 INFO L290 TraceCheckUtils]: 2: Hoare triple {100#true} assume 0 != main_#t~nondet30#1;havoc main_#t~nondet30#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 1.0) then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {100#true} is VALID [2022-02-20 20:03:31,078 INFO L290 TraceCheckUtils]: 3: Hoare triple {100#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {101#false} is VALID [2022-02-20 20:03:31,078 INFO L290 TraceCheckUtils]: 4: Hoare triple {101#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {101#false} is VALID [2022-02-20 20:03:31,080 INFO L290 TraceCheckUtils]: 5: Hoare triple {101#false} assume !(~someBinaryFLOATComparisonOperation(main1_~result~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~result~0#1, 1.3985)); {101#false} is VALID [2022-02-20 20:03:31,080 INFO L290 TraceCheckUtils]: 6: Hoare triple {101#false} assume !false; {101#false} is VALID [2022-02-20 20:03:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 20:03:31,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 20:03:31,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310448138] [2022-02-20 20:03:31,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310448138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:03:31,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:03:31,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:03:31,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638481013] [2022-02-20 20:03:31,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:03:31,091 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:03:31,092 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:03:31,095 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:31,115 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:03:31,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:03:31,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 20:03:31,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:03:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:03:31,146 INFO L87 Difference]: Start difference. First operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:31,286 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-02-20 20:03:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:03:31,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:03:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:03:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2022-02-20 20:03:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2022-02-20 20:03:31,310 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 311 transitions. [2022-02-20 20:03:31,552 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 311 edges. 311 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:03:31,573 INFO L225 Difference]: With dead ends: 189 [2022-02-20 20:03:31,574 INFO L226 Difference]: Without dead ends: 88 [2022-02-20 20:03:31,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:03:31,581 INFO L933 BasicCegarLoop]: 140 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, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 20:03:31,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:03:31,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-02-20 20:03:31,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-02-20 20:03:31,622 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:03:31,623 INFO L82 GeneralOperation]: Start isEquivalent. First operand 88 states. Second operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:31,624 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:31,625 INFO L87 Difference]: Start difference. First operand 88 states. Second operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:31,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:31,631 INFO L93 Difference]: Finished difference Result 88 states and 129 transitions. [2022-02-20 20:03:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:03:31,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:31,633 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:31,634 INFO L74 IsIncluded]: Start isIncluded. First operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 88 states. [2022-02-20 20:03:31,634 INFO L87 Difference]: Start difference. First operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 88 states. [2022-02-20 20:03:31,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:31,640 INFO L93 Difference]: Finished difference Result 88 states and 129 transitions. [2022-02-20 20:03:31,640 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:03:31,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:31,641 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:31,642 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:03:31,642 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:03:31,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-02-20 20:03:31,647 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-02-20 20:03:31,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:03:31,648 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-02-20 20:03:31,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:31,648 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:03:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:31,649 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:31,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:31,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 20:03:31,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:31,650 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-02-20 20:03:31,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:03:31,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176042836] [2022-02-20 20:03:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:31,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:03:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:03:31,667 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:03:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:03:31,689 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 20:03:31,689 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:03:31,691 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 20:03:31,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 20:03:31,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 20:03:31,695 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 20:03:31,698 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:03:31,712 WARN L170 areAnnotationChecker]: base2fltENTRY has no Hoare annotation [2022-02-20 20:03:31,713 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 20:03:31,713 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-02-20 20:03:31,713 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:03:31,713 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:03:31,713 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 20:03:31,713 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:03:31,714 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:03:31,715 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2022-02-20 20:03:31,715 WARN L170 areAnnotationChecker]: base2fltFINAL has no Hoare annotation [2022-02-20 20:03:31,715 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:03:31,715 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:03:31,715 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:03:31,715 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:03:31,715 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:03:31,716 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:03:31,716 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:03:31,716 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:03:31,716 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:03:31,716 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:03:31,716 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-02-20 20:03:31,716 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:03:31,717 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:03:31,718 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:03:31,718 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 20:03:31,718 WARN L170 areAnnotationChecker]: L281-1 has no Hoare annotation [2022-02-20 20:03:31,718 WARN L170 areAnnotationChecker]: L299-1 has no Hoare annotation [2022-02-20 20:03:31,718 WARN L170 areAnnotationChecker]: L282-1 has no Hoare annotation [2022-02-20 20:03:31,718 WARN L170 areAnnotationChecker]: L283-1 has no Hoare annotation [2022-02-20 20:03:31,718 WARN L170 areAnnotationChecker]: L284-1 has no Hoare annotation [2022-02-20 20:03:31,719 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:03:31,719 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:03:31,719 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:03:31,719 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:03:31,719 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:03:31,719 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:03:31,719 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L317 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:03:31,720 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:03:31,721 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:03:31,721 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:03:31,721 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:03:31,721 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:03:31,721 WARN L170 areAnnotationChecker]: L120-7 has no Hoare annotation [2022-02-20 20:03:31,721 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:03:31,721 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:03:31,722 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:03:31,722 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:03:31,722 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:03:31,722 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:03:31,722 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2022-02-20 20:03:31,722 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:03:31,722 WARN L170 areAnnotationChecker]: L286-2 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 20:03:31,723 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 20:03:31,724 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:03:31,724 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:03:31,724 WARN L170 areAnnotationChecker]: L289-2 has no Hoare annotation [2022-02-20 20:03:31,724 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:03:31,724 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:03:31,724 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:03:31,724 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L260 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L214-8 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:03:31,725 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:03:31,726 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:03:31,726 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:03:31,726 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:03:31,726 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:03:31,726 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:03:31,726 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:03:31,726 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:03:31,727 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:03:31,727 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:03:31,727 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:03:31,727 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:03:31,727 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:03:31,727 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:03:31,727 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:03:31,728 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:03:31,728 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:03:31,728 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:03:31,728 WARN L170 areAnnotationChecker]: L217-7 has no Hoare annotation [2022-02-20 20:03:31,728 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:03:31,728 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:03:31,728 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:03:31,729 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:03:31,729 WARN L170 areAnnotationChecker]: L303-2 has no Hoare annotation [2022-02-20 20:03:31,729 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:03:31,729 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:03:31,729 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:03:31,729 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:03:31,729 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:03:31,730 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:03:31,730 WARN L170 areAnnotationChecker]: L219-8 has no Hoare annotation [2022-02-20 20:03:31,730 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:03:31,730 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:03:31,730 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:03:31,730 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:03:31,730 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:03:31,731 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:03:31,732 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:03:31,732 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:03:31,732 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:03:31,732 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2022-02-20 20:03:31,732 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:03:31,732 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:03:31,732 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L257-7 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:03:31,733 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:03:31,734 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:03:31,735 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 20:03:31,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:03:31 BoogieIcfgContainer [2022-02-20 20:03:31,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:03:31,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:03:31,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:03:31,737 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:03:31,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:30" (3/4) ... [2022-02-20 20:03:31,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 20:03:31,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:03:31,741 INFO L158 Benchmark]: Toolchain (without parser) took 2046.22ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 49.5MB in the beginning and 69.6MB in the end (delta: -20.0MB). Peak memory consumption was 241.6kB. Max. memory is 16.1GB. [2022-02-20 20:03:31,741 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:03:31,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.12ms. Allocated memory is still 88.1MB. Free memory was 49.3MB in the beginning and 59.1MB in the end (delta: -9.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 20:03:31,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.49ms. Allocated memory is still 88.1MB. Free memory was 59.1MB in the beginning and 56.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:03:31,743 INFO L158 Benchmark]: Boogie Preprocessor took 27.88ms. Allocated memory is still 88.1MB. Free memory was 56.3MB in the beginning and 54.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:03:31,743 INFO L158 Benchmark]: RCFGBuilder took 691.10ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 54.3MB in the beginning and 83.9MB in the end (delta: -29.6MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-02-20 20:03:31,744 INFO L158 Benchmark]: TraceAbstraction took 875.56ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 69.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-02-20 20:03:31,744 INFO L158 Benchmark]: Witness Printer took 3.51ms. Allocated memory is still 109.1MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:03:31,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.12ms. Allocated memory is still 88.1MB. Free memory was 49.3MB in the beginning and 59.1MB in the end (delta: -9.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.49ms. Allocated memory is still 88.1MB. Free memory was 59.1MB in the beginning and 56.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.88ms. Allocated memory is still 88.1MB. Free memory was 56.3MB in the beginning and 54.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 691.10ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 54.3MB in the beginning and 83.9MB in the end (delta: -29.6MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 875.56ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 69.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 3.51ms. Allocated memory is still 109.1MB. Free memory is still 69.6MB. 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 < 1.3985f) 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, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, 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, 140 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, 140 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=97occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 20:03:31,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_5+soft_float_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 022d3c5901739211c5eb00a5826c62b3632d6c52c21250401c080cec1ded6145 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:03:33,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:03:33,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:03:33,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:03:33,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:03:33,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:03:33,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:03:33,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:03:33,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:03:33,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:03:33,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:03:33,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:03:33,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:03:33,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:03:33,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:03:33,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:03:33,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:03:33,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:03:33,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:03:33,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:03:33,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:03:33,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:03:33,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:03:33,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:03:33,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:03:33,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:03:33,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:03:33,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:03:33,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:03:33,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:03:33,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:03:33,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:03:33,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:03:33,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:03:33,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:03:33,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:03:33,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:03:33,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:03:33,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:03:33,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:03:33,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:03:33,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 20:03:33,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:03:33,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:03:33,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:03:33,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:03:33,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:03:33,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:03:33,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:03:33,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:03:33,698 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:03:33,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:03:33,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:03:33,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:03:33,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:03:33,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:03:33,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:03:33,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:03:33,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 20:03:33,700 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 20:03:33,700 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 20:03:33,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:03:33,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:03:33,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:03:33,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:03:33,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:03:33,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:03:33,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:03:33,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:33,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:03:33,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:03:33,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:03:33,702 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 20:03:33,703 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 20:03:33,703 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:03:33,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:03:33,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:03:33,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 20:03:33,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022d3c5901739211c5eb00a5826c62b3632d6c52c21250401c080cec1ded6145 [2022-02-20 20:03:34,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:03:34,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:03:34,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:03:34,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:03:34,033 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:03:34,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_5+soft_float_2a.c.cil.c [2022-02-20 20:03:34,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dec58fb9/51abe12b061c45d3a30c14be9de1a24a/FLAG1e90c104d [2022-02-20 20:03:34,571 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:03:34,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_2a.c.cil.c [2022-02-20 20:03:34,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dec58fb9/51abe12b061c45d3a30c14be9de1a24a/FLAG1e90c104d [2022-02-20 20:03:34,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dec58fb9/51abe12b061c45d3a30c14be9de1a24a [2022-02-20 20:03:34,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:03:34,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:03:34,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:34,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:03:34,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:03:34,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:34,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404f55b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34, skipping insertion in model container [2022-02-20 20:03:34,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:34,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:03:34,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:03:34,773 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_5+soft_float_2a.c.cil.c[1998,2011] [2022-02-20 20:03:34,778 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_5+soft_float_2a.c.cil.c[2367,2380] [2022-02-20 20:03:34,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:34,884 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:03:34,897 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_5+soft_float_2a.c.cil.c[1998,2011] [2022-02-20 20:03:34,899 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_5+soft_float_2a.c.cil.c[2367,2380] [2022-02-20 20:03:34,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:34,934 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:03:34,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34 WrapperNode [2022-02-20 20:03:34,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:34,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:34,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:03:34,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:03:34,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:34,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:34,976 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-02-20 20:03:34,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:34,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:03:34,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:03:34,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:03:34,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:34,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:34,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:34,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:35,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:35,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:35,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:35,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:03:35,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:03:35,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:03:35,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:03:35,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (1/1) ... [2022-02-20 20:03:35,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:35,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:03:35,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 20:03:35,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 20:03:35,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:03:35,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 20:03:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:03:35,069 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:03:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:03:35,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:03:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:03:35,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:03:35,139 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:03:35,141 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:03:37,721 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:03:37,727 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:03:37,728 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:03:37,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:37 BoogieIcfgContainer [2022-02-20 20:03:37,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:03:37,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:03:37,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:03:37,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:03:37,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:03:34" (1/3) ... [2022-02-20 20:03:37,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d249356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:37, skipping insertion in model container [2022-02-20 20:03:37,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:34" (2/3) ... [2022-02-20 20:03:37,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d249356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:37, skipping insertion in model container [2022-02-20 20:03:37,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:37" (3/3) ... [2022-02-20 20:03:37,740 INFO L111 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_2a.c.cil.c [2022-02-20 20:03:37,745 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:03:37,746 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:03:37,807 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:03:37,812 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 20:03:37,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:03:37,831 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) [2022-02-20 20:03:37,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:37,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:37,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:37,835 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:37,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:37,839 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-02-20 20:03:37,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:03:37,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471543797] [2022-02-20 20:03:37,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:37,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:03:37,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:03:37,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 20:03:37,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 20:03:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:03:38,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 20:03:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:03:38,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 20:03:38,326 INFO L290 TraceCheckUtils]: 0: Hoare triple {64#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(11bv32, 2bv32); {64#true} is VALID [2022-02-20 20:03:38,327 INFO L290 TraceCheckUtils]: 1: Hoare triple {64#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_#t~ret18#1; {64#true} is VALID [2022-02-20 20:03:38,327 INFO L290 TraceCheckUtils]: 2: Hoare triple {64#true} assume 0bv32 != main_#t~nondet16#1;havoc main_#t~nondet16#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.geq~FLOAT(main1_~IN~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.0)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {64#true} is VALID [2022-02-20 20:03:38,329 INFO L290 TraceCheckUtils]: 3: Hoare triple {64#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {65#false} is VALID [2022-02-20 20:03:38,329 INFO L290 TraceCheckUtils]: 4: Hoare triple {65#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.5), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.125), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0390625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {65#false} is VALID [2022-02-20 20:03:38,329 INFO L290 TraceCheckUtils]: 5: Hoare triple {65#false} assume !(~fp.geq~FLOAT(main1_~result~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~result~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.3985))); {65#false} is VALID [2022-02-20 20:03:38,330 INFO L290 TraceCheckUtils]: 6: Hoare triple {65#false} assume !false; {65#false} is VALID [2022-02-20 20:03:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 20:03:38,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 20:03:38,332 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 20:03:38,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471543797] [2022-02-20 20:03:38,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471543797] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:03:38,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:03:38,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:03:38,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772503923] [2022-02-20 20:03:38,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:03:38,343 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:03:38,344 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:03:38,347 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:38,648 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:03:38,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:03:38,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 20:03:38,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:03:38,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:03:38,680 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) [2022-02-20 20:03:41,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:41,217 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-02-20 20:03:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:03:41,218 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:03:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:03:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:41,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions. [2022-02-20 20:03:41,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:41,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions. [2022-02-20 20:03:41,239 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 175 transitions. [2022-02-20 20:03:41,958 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 175 edges. 175 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:03:41,968 INFO L225 Difference]: With dead ends: 117 [2022-02-20 20:03:41,968 INFO L226 Difference]: Without dead ends: 52 [2022-02-20 20:03:41,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:03:41,974 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 [2022-02-20 20:03:41,975 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] [2022-02-20 20:03:41,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-02-20 20:03:41,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-02-20 20:03:41,999 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:03:42,000 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second 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) [2022-02-20 20:03:42,001 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second 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) [2022-02-20 20:03:42,002 INFO L87 Difference]: Start difference. First operand 52 states. Second 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) [2022-02-20 20:03:42,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:42,007 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-02-20 20:03:42,008 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:03:42,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:42,009 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:42,009 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 52 states. [2022-02-20 20:03:42,010 INFO L87 Difference]: Start difference. First 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) Second operand 52 states. [2022-02-20 20:03:42,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:42,020 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-02-20 20:03:42,020 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:03:42,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:42,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:42,021 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:03:42,021 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:03:42,022 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) [2022-02-20 20:03:42,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-02-20 20:03:42,028 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-02-20 20:03:42,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:03:42,029 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-02-20 20:03:42,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:42,029 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:03:42,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:42,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:42,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:42,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 20:03:42,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 20:03:42,236 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:42,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:42,237 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-02-20 20:03:42,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:03:42,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046736276] [2022-02-20 20:03:42,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:42,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:03:42,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:03:42,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 20:03:42,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process