./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:03:31,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:03:31,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:03:31,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:03:31,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:03:31,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:03:31,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:03:31,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:03:31,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:03:31,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:03:31,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:03:31,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:03:31,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:03:31,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:03:31,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:03:31,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:03:31,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:03:31,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:03:31,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:03:31,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:03:31,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:03:31,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:03:31,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:03:31,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:03:31,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:03:31,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:03:31,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:03:31,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:03:31,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:03:31,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:03:31,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:03:31,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:03:31,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:03:31,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:03:31,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:03:31,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:03:31,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:03:31,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:03:31,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:03:31,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:03:31,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:03:31,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 20:03:31,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:03:31,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:03:31,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:03:31,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:03:31,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:03:31,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:03:31,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:03:31,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:03:31,476 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:03:31,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:03:31,477 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:03:31,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 20:03:31,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:03:31,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:03:31,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:03:31,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:03:31,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:03:31,478 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:03:31,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:03:31,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:03:31,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:03:31,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:03:31,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:03:31,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:03:31,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:31,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:03:31,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:03:31,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:03:31,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 20:03:31,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 20:03:31,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:03:31,481 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:03:31,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:03:31,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 [2022-02-20 20:03:31,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:03:31,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:03:31,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:03:31,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:03:31,735 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:03:31,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2022-02-20 20:03:31,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d4264d0/23765803c3474754b75ba44e36147574/FLAG4a94f6058 [2022-02-20 20:03:32,197 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:03:32,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2022-02-20 20:03:32,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d4264d0/23765803c3474754b75ba44e36147574/FLAG4a94f6058 [2022-02-20 20:03:32,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d4264d0/23765803c3474754b75ba44e36147574 [2022-02-20 20:03:32,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:03:32,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:03:32,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:32,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:03:32,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:03:32,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e4132f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32, skipping insertion in model container [2022-02-20 20:03:32,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:03:32,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:03:32,454 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_3a.c.cil.c[1998,2011] [2022-02-20 20:03:32,462 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_3a.c.cil.c[2367,2380] [2022-02-20 20:03:32,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:32,526 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:03:32,538 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_3a.c.cil.c[1998,2011] [2022-02-20 20:03:32,539 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_3a.c.cil.c[2367,2380] [2022-02-20 20:03:32,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:32,580 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:03:32,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32 WrapperNode [2022-02-20 20:03:32,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:32,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:32,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:03:32,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:03:32,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,644 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-02-20 20:03:32,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:32,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:03:32,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:03:32,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:03:32,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:03:32,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:03:32,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:03:32,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:03:32,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (1/1) ... [2022-02-20 20:03:32,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:32,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:03:32,728 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 20:03:32,730 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 20:03:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:03:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:03:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:03:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 20:03:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:03:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:03:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:03:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:03:32,820 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:03:32,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:03:33,309 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:03:33,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:03:33,322 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:03:33,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:33 BoogieIcfgContainer [2022-02-20 20:03:33,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:03:33,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:03:33,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:03:33,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:03:33,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:03:32" (1/3) ... [2022-02-20 20:03:33,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaf66f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:33, skipping insertion in model container [2022-02-20 20:03:33,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:32" (2/3) ... [2022-02-20 20:03:33,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaf66f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:33, skipping insertion in model container [2022-02-20 20:03:33,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:33" (3/3) ... [2022-02-20 20:03:33,336 INFO L111 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_3a.c.cil.c [2022-02-20 20:03:33,340 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:03:33,340 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:03:33,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:03:33,392 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 20:03:33,392 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:03:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 20:03:33,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:33,415 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:33,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:33,415 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:33,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:33,420 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-02-20 20:03:33,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:03:33,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242361237] [2022-02-20 20:03:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:33,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:03:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:03:33,557 INFO L290 TraceCheckUtils]: 0: Hoare triple {99#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2); {99#true} is VALID [2022-02-20 20:03:33,557 INFO L290 TraceCheckUtils]: 1: Hoare triple {99#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet30#1, main_#t~ret31#1, main_#t~ret32#1;assume -2147483648 <= main_#t~nondet30#1 && main_#t~nondet30#1 <= 2147483647; {99#true} is VALID [2022-02-20 20:03:33,558 INFO L290 TraceCheckUtils]: 2: Hoare triple {99#true} assume 0 != main_#t~nondet30#1;havoc main_#t~nondet30#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 1.0) then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {99#true} is VALID [2022-02-20 20:03:33,558 INFO L290 TraceCheckUtils]: 3: Hoare triple {99#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {100#false} is VALID [2022-02-20 20:03:33,559 INFO L290 TraceCheckUtils]: 4: Hoare triple {100#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {100#false} is VALID [2022-02-20 20:03:33,559 INFO L290 TraceCheckUtils]: 5: Hoare triple {100#false} assume !(~someBinaryFLOATComparisonOperation(main1_~result~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~result~0#1, 1.3985)); {100#false} is VALID [2022-02-20 20:03:33,560 INFO L290 TraceCheckUtils]: 6: Hoare triple {100#false} assume !false; {100#false} is VALID [2022-02-20 20:03:33,560 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 20:03:33,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 20:03:33,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242361237] [2022-02-20 20:03:33,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242361237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:03:33,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:03:33,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:03:33,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817005022] [2022-02-20 20:03:33,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:03:33,571 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 20:03:33,572 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:03:33,575 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 20:03:33,591 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 20:03:33,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:03:33,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 20:03:33,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:03:33,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:03:33,620 INFO L87 Difference]: Start difference. First operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:33,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:33,764 INFO L93 Difference]: Finished difference Result 187 states and 309 transitions. [2022-02-20 20:03:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:03:33,765 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 20:03:33,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:03:33,766 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 20:03:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2022-02-20 20:03:33,777 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 20:03:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2022-02-20 20:03:33,787 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 309 transitions. [2022-02-20 20:03:34,047 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 309 edges. 309 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:03:34,060 INFO L225 Difference]: With dead ends: 187 [2022-02-20 20:03:34,060 INFO L226 Difference]: Without dead ends: 87 [2022-02-20 20:03:34,064 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 20:03:34,067 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 20:03:34,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:03:34,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-02-20 20:03:34,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-02-20 20:03:34,102 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:03:34,106 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:34,108 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:34,109 INFO L87 Difference]: Start difference. First operand 87 states. Second operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:34,122 INFO L93 Difference]: Finished difference Result 87 states and 128 transitions. [2022-02-20 20:03:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-02-20 20:03:34,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:34,124 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:34,124 INFO L74 IsIncluded]: Start isIncluded. First operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 87 states. [2022-02-20 20:03:34,125 INFO L87 Difference]: Start difference. First operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 87 states. [2022-02-20 20:03:34,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:34,129 INFO L93 Difference]: Finished difference Result 87 states and 128 transitions. [2022-02-20 20:03:34,130 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-02-20 20:03:34,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:34,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:34,131 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:03:34,131 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:03:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:34,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 128 transitions. [2022-02-20 20:03:34,137 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 128 transitions. Word has length 7 [2022-02-20 20:03:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:03:34,137 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 128 transitions. [2022-02-20 20:03:34,137 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 20:03:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-02-20 20:03:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:34,138 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:34,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:34,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 20:03:34,139 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:34,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:34,139 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-02-20 20:03:34,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:03:34,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236293084] [2022-02-20 20:03:34,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:34,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:03:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:03:34,156 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:03:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:03:34,176 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 20:03:34,176 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:03:34,178 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 20:03:34,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 20:03:34,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 20:03:34,182 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 20:03:34,184 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:03:34,198 WARN L170 areAnnotationChecker]: base2fltENTRY has no Hoare annotation [2022-02-20 20:03:34,198 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 20:03:34,198 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-02-20 20:03:34,198 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:03:34,198 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:03:34,198 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 20:03:34,198 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:03:34,199 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:03:34,199 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 20:03:34,199 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:03:34,199 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:03:34,199 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:03:34,199 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:03:34,199 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:03:34,200 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:03:34,200 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2022-02-20 20:03:34,200 WARN L170 areAnnotationChecker]: base2fltFINAL has no Hoare annotation [2022-02-20 20:03:34,200 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:03:34,200 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:03:34,200 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:03:34,200 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-02-20 20:03:34,201 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:34,202 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:34,202 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:34,202 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:03:34,202 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:03:34,202 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:03:34,202 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:03:34,202 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:03:34,203 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:03:34,203 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:03:34,203 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 20:03:34,203 WARN L170 areAnnotationChecker]: L281-1 has no Hoare annotation [2022-02-20 20:03:34,203 WARN L170 areAnnotationChecker]: L297 has no Hoare annotation [2022-02-20 20:03:34,203 WARN L170 areAnnotationChecker]: L282-1 has no Hoare annotation [2022-02-20 20:03:34,203 WARN L170 areAnnotationChecker]: L283-1 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L284-1 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:03:34,204 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:03:34,205 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:03:34,205 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:03:34,205 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:03:34,205 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:03:34,205 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:03:34,205 WARN L170 areAnnotationChecker]: L315 has no Hoare annotation [2022-02-20 20:03:34,205 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L120-7 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:03:34,206 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:03:34,207 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:03:34,207 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:03:34,207 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:03:34,207 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:03:34,207 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2022-02-20 20:03:34,207 WARN L170 areAnnotationChecker]: L318 has no Hoare annotation [2022-02-20 20:03:34,208 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:03:34,208 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:03:34,208 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:03:34,208 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:03:34,208 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:03:34,208 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:03:34,208 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: L260 has no Hoare annotation [2022-02-20 20:03:34,209 WARN L170 areAnnotationChecker]: L214-8 has no Hoare annotation [2022-02-20 20:03:34,210 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:03:34,210 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:03:34,210 WARN L170 areAnnotationChecker]: L287 has no Hoare annotation [2022-02-20 20:03:34,210 WARN L170 areAnnotationChecker]: L287 has no Hoare annotation [2022-02-20 20:03:34,210 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:03:34,210 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:03:34,210 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L287-2 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L287-2 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L290 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L290 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:03:34,211 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:03:34,212 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:03:34,212 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:03:34,212 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:03:34,212 WARN L170 areAnnotationChecker]: L298 has no Hoare annotation [2022-02-20 20:03:34,212 WARN L170 areAnnotationChecker]: L298 has no Hoare annotation [2022-02-20 20:03:34,212 WARN L170 areAnnotationChecker]: L290-2 has no Hoare annotation [2022-02-20 20:03:34,212 WARN L170 areAnnotationChecker]: L217-7 has no Hoare annotation [2022-02-20 20:03:34,213 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:03:34,213 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:03:34,213 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:03:34,213 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:03:34,213 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2022-02-20 20:03:34,213 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2022-02-20 20:03:34,213 WARN L170 areAnnotationChecker]: L301 has no Hoare annotation [2022-02-20 20:03:34,214 WARN L170 areAnnotationChecker]: L301 has no Hoare annotation [2022-02-20 20:03:34,214 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:03:34,214 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:03:34,214 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:03:34,214 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:03:34,214 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:03:34,214 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L301-2 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L219-8 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:03:34,215 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:03:34,216 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:03:34,216 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:03:34,216 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:03:34,216 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:03:34,216 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:03:34,216 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:03:34,216 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:03:34,217 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L257-7 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:03:34,218 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:03:34,219 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:03:34,219 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:03:34,219 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:03:34,219 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:03:34,219 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:03:34,219 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:03:34,219 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:03:34,219 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 20:03:34,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:03:34 BoogieIcfgContainer [2022-02-20 20:03:34,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:03:34,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:03:34,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:03:34,221 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:03:34,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:33" (3/4) ... [2022-02-20 20:03:34,224 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 20:03:34,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:03:34,225 INFO L158 Benchmark]: Toolchain (without parser) took 1994.02ms. Allocated memory is still 98.6MB. Free memory was 77.4MB in the beginning and 44.7MB in the end (delta: 32.6MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2022-02-20 20:03:34,226 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:03:34,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.70ms. Allocated memory is still 98.6MB. Free memory was 77.1MB in the beginning and 61.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-20 20:03:34,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.46ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 58.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:03:34,227 INFO L158 Benchmark]: Boogie Preprocessor took 42.78ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 56.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:03:34,228 INFO L158 Benchmark]: RCFGBuilder took 633.80ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 63.1MB in the end (delta: -6.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-02-20 20:03:34,228 INFO L158 Benchmark]: TraceAbstraction took 894.32ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 44.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-02-20 20:03:34,228 INFO L158 Benchmark]: Witness Printer took 3.35ms. Allocated memory is still 98.6MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:03:34,230 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 0.18ms. Allocated memory is still 81.8MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.70ms. Allocated memory is still 98.6MB. Free memory was 77.1MB in the beginning and 61.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.46ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 58.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.78ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 56.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.80ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 63.1MB in the end (delta: -6.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 894.32ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 44.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 3.35ms. Allocated memory is still 98.6MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.3985f) 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, 96 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, 139 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 139 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 20:03:34,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:03:36,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:03:36,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:03:36,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:03:36,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:03:36,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:03:36,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:03:36,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:03:36,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:03:36,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:03:36,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:03:36,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:03:36,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:03:36,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:03:36,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:03:36,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:03:36,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:03:36,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:03:36,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:03:36,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:03:36,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:03:36,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:03:36,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:03:36,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:03:36,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:03:36,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:03:36,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:03:36,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:03:36,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:03:36,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:03:36,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:03:36,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:03:36,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:03:36,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:03:36,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:03:36,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:03:36,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:03:36,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:03:36,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:03:36,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:03:36,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:03:36,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 20:03:36,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:03:36,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:03:36,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:03:36,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:03:36,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:03:36,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:03:36,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:03:36,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:03:36,249 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:03:36,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:03:36,250 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:03:36,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:03:36,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:03:36,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:03:36,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:03:36,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:03:36,251 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 20:03:36,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 20:03:36,252 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 20:03:36,252 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:03:36,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:03:36,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:03:36,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:03:36,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:03:36,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:03:36,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:03:36,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:36,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:03:36,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:03:36,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:03:36,254 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 20:03:36,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 20:03:36,254 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:03:36,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:03:36,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:03:36,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 20:03:36,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 [2022-02-20 20:03:36,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:03:36,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:03:36,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:03:36,590 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:03:36,590 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:03:36,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2022-02-20 20:03:36,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0fed796/4a1efc287352425a83103e1bd0b0f4e9/FLAGa36f2fdc7 [2022-02-20 20:03:37,033 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:03:37,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2022-02-20 20:03:37,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0fed796/4a1efc287352425a83103e1bd0b0f4e9/FLAGa36f2fdc7 [2022-02-20 20:03:37,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0fed796/4a1efc287352425a83103e1bd0b0f4e9 [2022-02-20 20:03:37,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:03:37,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:03:37,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:37,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:03:37,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:03:37,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285d8552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37, skipping insertion in model container [2022-02-20 20:03:37,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:03:37,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:03:37,254 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_3a.c.cil.c[1998,2011] [2022-02-20 20:03:37,274 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_3a.c.cil.c[2367,2380] [2022-02-20 20:03:37,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:37,344 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:03:37,369 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_3a.c.cil.c[1998,2011] [2022-02-20 20:03:37,375 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_3a.c.cil.c[2367,2380] [2022-02-20 20:03:37,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:03:37,425 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:03:37,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37 WrapperNode [2022-02-20 20:03:37,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:03:37,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:37,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:03:37,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:03:37,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,492 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-02-20 20:03:37,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:03:37,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:03:37,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:03:37,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:03:37,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:03:37,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:03:37,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:03:37,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:03:37,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (1/1) ... [2022-02-20 20:03:37,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:03:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:03:37,587 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 20:03:37,601 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 20:03:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:03:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 20:03:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:03:37,633 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:03:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:03:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:03:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:03:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:03:37,713 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:03:37,714 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:03:40,296 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:03:40,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:03:40,302 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:03:40,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:40 BoogieIcfgContainer [2022-02-20 20:03:40,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:03:40,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:03:40,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:03:40,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:03:40,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:03:37" (1/3) ... [2022-02-20 20:03:40,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c5a8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:40, skipping insertion in model container [2022-02-20 20:03:40,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:03:37" (2/3) ... [2022-02-20 20:03:40,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c5a8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:03:40, skipping insertion in model container [2022-02-20 20:03:40,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:03:40" (3/3) ... [2022-02-20 20:03:40,310 INFO L111 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_3a.c.cil.c [2022-02-20 20:03:40,313 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:03:40,314 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:03:40,363 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:03:40,368 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 20:03:40,369 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:03:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 20:03:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:40,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:40,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:40,391 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:40,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:40,396 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-02-20 20:03:40,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:03:40,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975817299] [2022-02-20 20:03:40,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:40,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:03:40,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:03:40,409 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 20:03:40,431 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 20:03:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:03:40,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 20:03:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:03:40,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 20:03:40,954 INFO L290 TraceCheckUtils]: 0: Hoare triple {63#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(11bv32, 2bv32); {63#true} is VALID [2022-02-20 20:03:40,955 INFO L290 TraceCheckUtils]: 1: Hoare triple {63#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_#t~ret18#1; {63#true} is VALID [2022-02-20 20:03:40,955 INFO L290 TraceCheckUtils]: 2: Hoare triple {63#true} assume 0bv32 != main_#t~nondet16#1;havoc main_#t~nondet16#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.geq~FLOAT(main1_~IN~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.0)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {63#true} is VALID [2022-02-20 20:03:40,957 INFO L290 TraceCheckUtils]: 3: Hoare triple {63#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {64#false} is VALID [2022-02-20 20:03:40,957 INFO L290 TraceCheckUtils]: 4: Hoare triple {64#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.5), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.125), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0390625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {64#false} is VALID [2022-02-20 20:03:40,957 INFO L290 TraceCheckUtils]: 5: Hoare triple {64#false} assume !(~fp.geq~FLOAT(main1_~result~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~result~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.3985))); {64#false} is VALID [2022-02-20 20:03:40,958 INFO L290 TraceCheckUtils]: 6: Hoare triple {64#false} assume !false; {64#false} is VALID [2022-02-20 20:03:40,959 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 20:03:40,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 20:03:40,960 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 20:03:40,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975817299] [2022-02-20 20:03:40,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975817299] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:03:40,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:03:40,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:03:40,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608595459] [2022-02-20 20:03:40,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:03:40,970 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 20:03:40,970 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:03:40,973 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 20:03:41,243 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 20:03:41,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:03:41,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 20:03:41,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:03:41,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:03:41,266 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:03:43,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:43,847 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-02-20 20:03:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:03:43,848 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 20:03:43,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:03:43,849 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 20:03:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 173 transitions. [2022-02-20 20:03:43,860 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 20:03:43,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 173 transitions. [2022-02-20 20:03:43,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 173 transitions. [2022-02-20 20:03:44,576 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:03:44,589 INFO L225 Difference]: With dead ends: 115 [2022-02-20 20:03:44,590 INFO L226 Difference]: Without dead ends: 51 [2022-02-20 20:03:44,593 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 20:03:44,599 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 20:03:44,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:03:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-02-20 20:03:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-02-20 20:03:44,631 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:03:44,633 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:44,634 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:44,635 INFO L87 Difference]: Start difference. First operand 51 states. Second operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:44,642 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2022-02-20 20:03:44,642 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-02-20 20:03:44,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:44,644 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:44,647 INFO L74 IsIncluded]: Start isIncluded. First operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 51 states. [2022-02-20 20:03:44,648 INFO L87 Difference]: Start difference. First operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 51 states. [2022-02-20 20:03:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:03:44,658 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2022-02-20 20:03:44,658 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-02-20 20:03:44,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:03:44,659 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:03:44,660 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:03:44,660 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:03:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:03:44,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-02-20 20:03:44,670 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-02-20 20:03:44,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:03:44,671 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-02-20 20:03:44,671 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 20:03:44,671 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-02-20 20:03:44,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:03:44,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:03:44,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:03:44,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-02-20 20:03:44,879 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 20:03:44,880 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:03:44,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:03:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-02-20 20:03:44,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:03:44,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640603478] [2022-02-20 20:03:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:03:44,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:03:44,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:03:44,883 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 20:03:44,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process