/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_NONE.epf -i ../../../trunk/examples/svcomp/float-benchs/exp_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:27:49,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:27:49,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:27:49,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:27:49,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:27:49,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:27:49,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:27:49,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:27:49,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:27:49,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:27:49,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:27:49,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:27:49,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:27:49,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:27:49,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:27:49,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:27:49,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:27:49,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:27:49,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:27:49,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:27:49,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:27:49,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:27:49,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:27:49,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:27:49,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:27:49,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:27:49,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:27:49,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:27:49,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:27:49,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:27:49,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:27:49,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:27:49,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:27:49,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:27:49,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:27:49,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:27:49,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:27:49,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:27:49,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:27:49,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:27:49,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:27:49,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:27:49,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:27:49,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:27:49,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:27:49,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:27:49,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:27:49,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:27:49,402 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:27:49,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:27:49,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:27:49,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:27:49,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:27:49,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:27:49,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:27:49,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:27:49,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:27:49,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:27:49,406 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:27:49,406 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:27:49,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:27:49,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:27:49,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:27:49,599 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:27:49,600 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:27:49,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/exp_loop.c [2022-01-10 23:27:49,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f5bfba6/dab0e4953f0547e7928cd229b8ee7e3a/FLAG086bccab4 [2022-01-10 23:27:50,016 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:27:50,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/exp_loop.c [2022-01-10 23:27:50,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f5bfba6/dab0e4953f0547e7928cd229b8ee7e3a/FLAG086bccab4 [2022-01-10 23:27:50,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f5bfba6/dab0e4953f0547e7928cd229b8ee7e3a [2022-01-10 23:27:50,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:27:50,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:27:50,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:27:50,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:27:50,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:27:50,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230e00f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50, skipping insertion in model container [2022-01-10 23:27:50,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:27:50,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:27:50,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/exp_loop.c[587,600] [2022-01-10 23:27:50,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:27:50,190 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:27:50,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/exp_loop.c[587,600] [2022-01-10 23:27:50,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:27:50,212 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:27:50,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50 WrapperNode [2022-01-10 23:27:50,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:27:50,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:27:50,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:27:50,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:27:50,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,238 INFO L137 Inliner]: procedures = 21, calls = 17, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2022-01-10 23:27:50,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:27:50,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:27:50,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:27:50,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:27:50,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:27:50,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:27:50,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:27:50,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:27:50,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:27:50,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:27:50,284 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 23:27:50,292 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 23:27:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:27:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:27:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 23:27:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 23:27:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:27:50,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:27:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 23:27:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 23:27:50,408 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:27:50,414 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:27:50,566 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:27:50,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:27:50,570 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-10 23:27:50,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:27:50 BoogieIcfgContainer [2022-01-10 23:27:50,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:27:50,571 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:27:50,572 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:27:50,572 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:27:50,574 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:27:50" (1/1) ... [2022-01-10 23:27:50,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:27:50 BasicIcfg [2022-01-10 23:27:50,617 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:27:50,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:27:50,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:27:50,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:27:50,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:27:50" (1/4) ... [2022-01-10 23:27:50,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747d26d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:27:50, skipping insertion in model container [2022-01-10 23:27:50,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:50" (2/4) ... [2022-01-10 23:27:50,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747d26d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:27:50, skipping insertion in model container [2022-01-10 23:27:50,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:27:50" (3/4) ... [2022-01-10 23:27:50,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747d26d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:27:50, skipping insertion in model container [2022-01-10 23:27:50,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:27:50" (4/4) ... [2022-01-10 23:27:50,626 INFO L111 eAbstractionObserver]: Analyzing ICFG exp_loop.cTransformedIcfg [2022-01-10 23:27:50,629 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:27:50,629 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 23:27:50,673 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:27:50,679 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 23:27:50,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 23:27:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 states have internal predecessors, (36), 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 23:27:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 23:27:50,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:27:50,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:27:50,695 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:27:50,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:27:50,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1001709489, now seen corresponding path program 1 times [2022-01-10 23:27:50,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:27:50,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948360408] [2022-01-10 23:27:50,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:27:50,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:27:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:27:50,889 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 23:27:50,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:27:50,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948360408] [2022-01-10 23:27:50,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948360408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:27:50,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:27:50,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:27:50,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450763355] [2022-01-10 23:27:50,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:27:50,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:27:50,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:27:50,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:27:50,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:27:50,929 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 states have internal predecessors, (36), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 23:27:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:27:50,942 INFO L93 Difference]: Finished difference Result 45 states and 68 transitions. [2022-01-10 23:27:50,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:27:50,945 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2022-01-10 23:27:50,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:27:50,951 INFO L225 Difference]: With dead ends: 45 [2022-01-10 23:27:50,951 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 23:27:50,953 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 23:27:50,957 INFO L933 BasicCegarLoop]: 30 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, 30 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 23:27:50,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:27:50,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 23:27:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-10 23:27:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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 23:27:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-01-10 23:27:50,990 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 16 [2022-01-10 23:27:50,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:27:50,991 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-01-10 23:27:50,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 23:27:50,992 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-01-10 23:27:50,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 23:27:50,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:27:50,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:27:50,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:27:50,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:27:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:27:50,995 INFO L85 PathProgramCache]: Analyzing trace with hash 981168240, now seen corresponding path program 1 times [2022-01-10 23:27:50,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:27:50,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344469275] [2022-01-10 23:27:50,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:27:50,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:27:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 23:27:51,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 23:27:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 23:27:51,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 23:27:51,158 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 23:27:51,159 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 23:27:51,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:27:51,167 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 23:27:51,169 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 23:27:51,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:27:51 BasicIcfg [2022-01-10 23:27:51,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 23:27:51,215 INFO L158 Benchmark]: Toolchain (without parser) took 1175.32ms. Allocated memory is still 175.1MB. Free memory was 124.6MB in the beginning and 90.2MB in the end (delta: 34.4MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. [2022-01-10 23:27:51,215 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 23:27:51,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.22ms. Allocated memory is still 175.1MB. Free memory was 124.3MB in the beginning and 149.9MB in the end (delta: -25.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-01-10 23:27:51,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.82ms. Allocated memory is still 175.1MB. Free memory was 149.9MB in the beginning and 148.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 23:27:51,219 INFO L158 Benchmark]: Boogie Preprocessor took 18.14ms. Allocated memory is still 175.1MB. Free memory was 148.4MB in the beginning and 146.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 23:27:51,222 INFO L158 Benchmark]: RCFGBuilder took 313.57ms. Allocated memory is still 175.1MB. Free memory was 146.8MB in the beginning and 134.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 23:27:51,222 INFO L158 Benchmark]: IcfgTransformer took 45.30ms. Allocated memory is still 175.1MB. Free memory was 134.7MB in the beginning and 131.1MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 23:27:51,222 INFO L158 Benchmark]: TraceAbstraction took 596.52ms. Allocated memory is still 175.1MB. Free memory was 130.5MB in the beginning and 90.2MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2022-01-10 23:27:51,225 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 175.1MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 171.22ms. Allocated memory is still 175.1MB. Free memory was 124.3MB in the beginning and 149.9MB in the end (delta: -25.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.82ms. Allocated memory is still 175.1MB. Free memory was 149.9MB in the beginning and 148.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.14ms. Allocated memory is still 175.1MB. Free memory was 148.4MB in the beginning and 146.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 313.57ms. Allocated memory is still 175.1MB. Free memory was 146.8MB in the beginning and 134.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 45.30ms. Allocated memory is still 175.1MB. Free memory was 134.7MB in the beginning and 131.1MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 596.52ms. Allocated memory is still 175.1MB. Free memory was 130.5MB in the beginning and 90.2MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. 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: 14]: 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 80, overapproximation of to_fp at line 52, overapproximation of fp.div at line 47, overapproximation of fp.leq at line 80, overapproximation of floatingLiteral_2_FLOAT at line 31, overapproximation of fp.mul at line 66. Possible FailurePath: [L71] float a, b, c; [L72] int e; [L74] a = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not(a >= 1e-10 && a <= 1e10) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L75] RET assume_abort_if_not(a >= 1e-10 && a <= 1e10) [L77] CALL, EXPR FREXP(a, &e) [L25] int x; [L26] float r; [L27] CALL, EXPR FABS(d) [L19] COND TRUE d >= 0.f [L19] return d; [L27] RET, EXPR FABS(d) [L27] float dd = FABS(d); [L29] COND TRUE dd >= 1.f [L30] x = 1 [L31] r = 2.f VAL [e={-3:0}, e={-3:0}, x=1] [L32] COND FALSE !(r <= dd) VAL [e={-3:0}, e={-3:0}, x=1] [L46] *e = x [L47] return dd / r; VAL [e={-3:0}, e={-3:0}, x=1] [L77] RET, EXPR FREXP(a, &e) [L77] b = FREXP(a, &e) [L78] EXPR \read(e) [L78] CALL, EXPR LDEXP(b, e/2) [L52] float x = 1.; VAL [\old(e)=0, e=0] [L54] COND TRUE e >= 0 VAL [\old(e)=0, e=0] [L55] COND FALSE !(e > 0) VAL [\old(e)=0, e=0] [L66] return d * x; VAL [\old(e)=0, e=0] [L78] RET, EXPR LDEXP(b, e/2) [L78] c = LDEXP(b, e/2) [L80] CALL __VERIFIER_assert(c >= 0.f && c <= 1e6) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 30 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, 30 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=24occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 23:27:51,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...