/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/square_3+soft_float_2a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:06:28,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:06:28,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:06:28,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:06:28,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:06:28,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:06:28,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:06:28,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:06:28,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:06:28,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:06:28,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:06:28,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:06:28,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:06:28,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:06:28,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:06:28,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:06:28,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:06:28,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:06:28,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:06:28,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:06:28,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:06:28,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:06:28,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:06:28,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:06:28,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:06:28,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:06:28,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:06:28,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:06:28,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:06:28,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:06:28,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:06:28,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:06:28,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:06:28,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:06:28,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:06:28,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:06:28,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:06:28,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:06:28,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:06:28,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:06:28,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:06:28,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 20:06:28,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:06:28,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:06:28,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:06:28,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:06:28,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:06:28,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:06:28,469 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:06:28,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:06:28,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:06:28,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:06:28,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:06:28,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:06:28,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:06:28,470 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:06:28,471 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:06:28,471 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:06:28,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:06:28,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:06:28,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:06:28,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:06:28,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:06:28,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:06:28,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:06:28,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:06:28,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:06:28,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:06:28,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:06:28,473 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:06:28,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:06:28,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:06:28,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:06:28,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:06:28,474 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:06:28,474 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:06:28,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:06:28,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:06:28,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:06:28,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:06:28,666 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:06:28,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_3+soft_float_2a.c.cil.c [2022-01-10 20:06:28,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07894855a/2ed8a614b6b74fada41b48470abf7fce/FLAG7a55bb2e2 [2022-01-10 20:06:29,108 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:06:29,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_2a.c.cil.c [2022-01-10 20:06:29,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07894855a/2ed8a614b6b74fada41b48470abf7fce/FLAG7a55bb2e2 [2022-01-10 20:06:29,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07894855a/2ed8a614b6b74fada41b48470abf7fce [2022-01-10 20:06:29,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:06:29,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:06:29,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:06:29,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:06:29,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:06:29,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f9bc75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29, skipping insertion in model container [2022-01-10 20:06:29,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:06:29,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:06:29,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-01-10 20:06:29,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-01-10 20:06:29,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:06:29,418 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:06:29,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-01-10 20:06:29,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-01-10 20:06:29,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:06:29,464 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:06:29,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29 WrapperNode [2022-01-10 20:06:29,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:06:29,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:06:29,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:06:29,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:06:29,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,499 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 13, calls inlined = 11, statements flattened = 295 [2022-01-10 20:06:29,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:06:29,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:06:29,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:06:29,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:06:29,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:06:29,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:06:29,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:06:29,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:06:29,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:29,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:06:29,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:06:29,546 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) [2022-01-10 20:06:29,560 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 [2022-01-10 20:06:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:06:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:06:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:06:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:06:29,638 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:06:29,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:06:29,952 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:06:29,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:06:29,957 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-01-10 20:06:29,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:06:29 BoogieIcfgContainer [2022-01-10 20:06:29,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:06:29,959 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:06:29,959 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:06:29,964 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:06:29,966 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:06:29" (1/1) ... [2022-01-10 20:06:30,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:06:30 BasicIcfg [2022-01-10 20:06:30,047 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:06:30,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:06:30,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:06:30,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:06:30,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:06:29" (1/4) ... [2022-01-10 20:06:30,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713ed96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:06:30, skipping insertion in model container [2022-01-10 20:06:30,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:06:29" (2/4) ... [2022-01-10 20:06:30,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713ed96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:06:30, skipping insertion in model container [2022-01-10 20:06:30,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:06:29" (3/4) ... [2022-01-10 20:06:30,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713ed96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:06:30, skipping insertion in model container [2022-01-10 20:06:30,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:06:30" (4/4) ... [2022-01-10 20:06:30,052 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.cTransformedIcfg [2022-01-10 20:06:30,056 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:06:30,056 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 20:06:30,084 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:06:30,088 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 [2022-01-10 20:06:30,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 20:06:30,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 81 states have internal predecessors, (137), 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) [2022-01-10 20:06:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 20:06:30,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:06:30,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:06:30,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:06:30,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:06:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1584642080, now seen corresponding path program 1 times [2022-01-10 20:06:30,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:06:30,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598903678] [2022-01-10 20:06:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:06:30,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:06:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:06:30,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:06:30,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:06:30,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598903678] [2022-01-10 20:06:30,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598903678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:06:30,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:06:30,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:06:30,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634990075] [2022-01-10 20:06:30,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:06:30,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:06:30,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:06:30,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:06:30,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:06:30,268 INFO L87 Difference]: Start difference. First operand has 82 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 81 states have internal predecessors, (137), 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) 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) [2022-01-10 20:06:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:06:30,295 INFO L93 Difference]: Finished difference Result 152 states and 250 transitions. [2022-01-10 20:06:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:06:30,298 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 [2022-01-10 20:06:30,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:06:30,305 INFO L225 Difference]: With dead ends: 152 [2022-01-10 20:06:30,305 INFO L226 Difference]: Without dead ends: 74 [2022-01-10 20:06:30,307 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 [2022-01-10 20:06:30,310 INFO L933 BasicCegarLoop]: 118 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, 118 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 [2022-01-10 20:06:30,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:06:30,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-10 20:06:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-01-10 20:06:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.5) internal successors, (108), 73 states have internal predecessors, (108), 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) [2022-01-10 20:06:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2022-01-10 20:06:30,342 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2022-01-10 20:06:30,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:06:30,342 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-01-10 20:06:30,342 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) [2022-01-10 20:06:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2022-01-10 20:06:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 20:06:30,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:06:30,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:06:30,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:06:30,345 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:06:30,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:06:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1584612289, now seen corresponding path program 1 times [2022-01-10 20:06:30,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:06:30,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739322934] [2022-01-10 20:06:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:06:30,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:06:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:06:30,382 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 20:06:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:06:30,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 20:06:30,417 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 20:06:30,418 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 20:06:30,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 20:06:30,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:06:30,422 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 20:06:30,424 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 20:06:30,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:06:30 BasicIcfg [2022-01-10 20:06:30,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 20:06:30,446 INFO L158 Benchmark]: Toolchain (without parser) took 1313.36ms. Allocated memory is still 187.7MB. Free memory was 135.5MB in the beginning and 99.8MB in the end (delta: 35.7MB). Peak memory consumption was 36.1MB. Max. memory is 8.0GB. [2022-01-10 20:06:30,446 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory was 152.2MB in the beginning and 152.1MB in the end (delta: 66.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 20:06:30,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.22ms. Allocated memory is still 187.7MB. Free memory was 135.3MB in the beginning and 156.9MB in the end (delta: -21.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 20:06:30,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.24ms. Allocated memory is still 187.7MB. Free memory was 156.9MB in the beginning and 154.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 20:06:30,451 INFO L158 Benchmark]: Boogie Preprocessor took 24.81ms. Allocated memory is still 187.7MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 20:06:30,451 INFO L158 Benchmark]: RCFGBuilder took 433.66ms. Allocated memory is still 187.7MB. Free memory was 152.7MB in the beginning and 134.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-01-10 20:06:30,451 INFO L158 Benchmark]: IcfgTransformer took 87.43ms. Allocated memory is still 187.7MB. Free memory was 134.9MB in the beginning and 126.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 20:06:30,451 INFO L158 Benchmark]: TraceAbstraction took 396.95ms. Allocated memory is still 187.7MB. Free memory was 125.4MB in the beginning and 99.8MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-01-10 20:06:30,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory was 152.2MB in the beginning and 152.1MB in the end (delta: 66.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 331.22ms. Allocated memory is still 187.7MB. Free memory was 135.3MB in the beginning and 156.9MB in the end (delta: -21.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.24ms. Allocated memory is still 187.7MB. Free memory was 156.9MB in the beginning and 154.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.81ms. Allocated memory is still 187.7MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 433.66ms. Allocated memory is still 187.7MB. Free memory was 152.7MB in the beginning and 134.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * IcfgTransformer took 87.43ms. Allocated memory is still 187.7MB. Free memory was 134.9MB in the beginning and 126.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 396.95ms. Allocated memory is still 187.7MB. Free memory was 125.4MB in the beginning and 99.8MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * 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 fp.geq at line 47, overapproximation of fp.lt at line 47, overapproximation of fp.sub at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) [L48] reach_error() - 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 1 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 118 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, 118 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=82occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-10 20:06:30,491 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...