/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 21:25:36,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 21:25:36,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 21:25:36,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 21:25:36,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 21:25:36,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 21:25:36,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 21:25:36,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 21:25:36,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 21:25:36,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 21:25:36,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 21:25:36,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 21:25:36,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 21:25:36,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 21:25:36,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 21:25:36,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 21:25:36,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 21:25:36,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 21:25:36,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 21:25:36,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 21:25:36,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 21:25:36,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 21:25:36,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 21:25:36,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 21:25:36,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 21:25:36,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 21:25:36,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 21:25:36,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 21:25:36,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 21:25:36,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 21:25:36,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 21:25:36,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 21:25:36,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 21:25:36,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 21:25:36,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 21:25:36,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 21:25:36,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 21:25:36,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 21:25:36,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 21:25:36,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 21:25:36,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 21:25:36,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 21:25:36,338 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 21:25:36,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 21:25:36,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 21:25:36,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 21:25:36,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 21:25:36,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 21:25:36,341 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 21:25:36,341 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 21:25:36,341 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 21:25:36,341 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 21:25:36,342 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 21:25:36,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 21:25:36,342 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 21:25:36,342 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 21:25:36,342 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 21:25:36,342 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 21:25:36,342 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 21:25:36,342 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 21:25:36,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 21:25:36,343 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 21:25:36,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 21:25:36,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 21:25:36,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 21:25:36,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 21:25:36,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 21:25:36,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 21:25:36,344 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 21:25:36,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 21:25:36,344 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 21:25:36,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 21:25:36,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 21:25:36,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 21:25:36,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:25:36,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 21:25:36,345 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 21:25:36,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 21:25:36,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 21:25:36,345 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 21:25:36,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 21:25:36,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 21:25:36,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 21:25:36,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 21:25:36,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 21:25:36,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 21:25:36,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 21:25:36,625 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 21:25:36,626 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 21:25:36,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-04-02 21:25:37,919 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 21:25:38,124 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 21:25:38,125 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-04-02 21:25:38,142 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a0d8f93/df0fe43dd92e4e1bb07ba3cf2f9e82e2/FLAG9d1412810 [2023-04-02 21:25:38,159 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a0d8f93/df0fe43dd92e4e1bb07ba3cf2f9e82e2 [2023-04-02 21:25:38,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 21:25:38,163 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 21:25:38,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 21:25:38,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 21:25:38,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 21:25:38,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59eb0a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38, skipping insertion in model container [2023-04-02 21:25:38,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 21:25:38,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 21:25:38,426 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-04-02 21:25:38,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:25:38,439 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 21:25:38,506 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-04-02 21:25:38,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:25:38,535 INFO L208 MainTranslator]: Completed translation [2023-04-02 21:25:38,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38 WrapperNode [2023-04-02 21:25:38,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 21:25:38,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 21:25:38,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 21:25:38,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 21:25:38,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,600 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 21:25:38,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 21:25:38,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 21:25:38,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 21:25:38,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (1/1) ... [2023-04-02 21:25:38,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:25:38,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:25:38,638 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) [2023-04-02 21:25:38,647 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 [2023-04-02 21:25:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 21:25:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 21:25:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 21:25:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-04-02 21:25:38,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2023-04-02 21:25:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2023-04-02 21:25:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 21:25:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 21:25:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 21:25:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 21:25:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 21:25:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-02 21:25:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-04-02 21:25:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 21:25:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 21:25:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 21:25:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 21:25:38,792 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 21:25:38,794 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 21:25:39,328 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 21:25:39,449 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 21:25:39,450 INFO L302 CfgBuilder]: Removed 34 assume(true) statements. [2023-04-02 21:25:39,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:25:39 BoogieIcfgContainer [2023-04-02 21:25:39,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 21:25:39,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 21:25:39,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 21:25:39,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 21:25:39,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:25:38" (1/3) ... [2023-04-02 21:25:39,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95ccc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:25:39, skipping insertion in model container [2023-04-02 21:25:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:38" (2/3) ... [2023-04-02 21:25:39,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95ccc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:25:39, skipping insertion in model container [2023-04-02 21:25:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:25:39" (3/3) ... [2023-04-02 21:25:39,461 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2023-04-02 21:25:39,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 21:25:39,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 21:25:39,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 21:25:39,512 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34d05d2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 21:25:39,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 21:25:39,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 75 states have (on average 1.6533333333333333) internal successors, (124), 76 states have internal predecessors, (124), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-02 21:25:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-02 21:25:39,522 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:25:39,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:25:39,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:25:39,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:25:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash -87433248, now seen corresponding path program 1 times [2023-04-02 21:25:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:25:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2836061] [2023-04-02 21:25:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:25:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:25:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:25:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:25:39,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:25:39,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2836061] [2023-04-02 21:25:39,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2836061] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:25:39,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:25:39,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-02 21:25:39,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834338133] [2023-04-02 21:25:39,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:25:39,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-02 21:25:39,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:25:39,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-02 21:25:39,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-02 21:25:39,793 INFO L87 Difference]: Start difference. First operand has 88 states, 75 states have (on average 1.6533333333333333) internal successors, (124), 76 states have internal predecessors, (124), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 21:25:39,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:25:39,866 INFO L93 Difference]: Finished difference Result 169 states and 268 transitions. [2023-04-02 21:25:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-02 21:25:39,869 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2023-04-02 21:25:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:25:39,877 INFO L225 Difference]: With dead ends: 169 [2023-04-02 21:25:39,877 INFO L226 Difference]: Without dead ends: 84 [2023-04-02 21:25:39,881 INFO L412 NwaCegarLoop]: 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 [2023-04-02 21:25:39,887 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 21:25:39,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 21:25:39,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-04-02 21:25:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-04-02 21:25:39,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 73 states have internal predecessors, (87), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-02 21:25:39,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2023-04-02 21:25:39,935 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 25 [2023-04-02 21:25:39,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:25:39,936 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2023-04-02 21:25:39,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 21:25:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2023-04-02 21:25:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-04-02 21:25:39,938 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:25:39,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:25:39,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 21:25:39,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:25:39,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:25:39,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1152227645, now seen corresponding path program 1 times [2023-04-02 21:25:39,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:25:39,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609619122] [2023-04-02 21:25:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:25:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:25:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:25:40,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 21:25:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:25:40,173 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-02 21:25:40,173 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 21:25:40,175 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 21:25:40,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 21:25:40,186 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 21:25:40,189 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 21:25:40,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 09:25:40 BoogieIcfgContainer [2023-04-02 21:25:40,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 21:25:40,214 INFO L158 Benchmark]: Toolchain (without parser) took 2050.55ms. Allocated memory is still 340.8MB. Free memory was 292.3MB in the beginning and 264.0MB in the end (delta: 28.2MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2023-04-02 21:25:40,214 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 198.2MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:25:40,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.75ms. Allocated memory is still 340.8MB. Free memory was 292.1MB in the beginning and 278.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-02 21:25:40,215 INFO L158 Benchmark]: Boogie Preprocessor took 67.72ms. Allocated memory is still 340.8MB. Free memory was 278.4MB in the beginning and 275.6MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 21:25:40,215 INFO L158 Benchmark]: RCFGBuilder took 849.62ms. Allocated memory is still 340.8MB. Free memory was 275.6MB in the beginning and 303.9MB in the end (delta: -28.3MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. [2023-04-02 21:25:40,216 INFO L158 Benchmark]: TraceAbstraction took 756.70ms. Allocated memory is still 340.8MB. Free memory was 302.8MB in the beginning and 264.0MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-04-02 21:25:40,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 198.2MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 369.75ms. Allocated memory is still 340.8MB. Free memory was 292.1MB in the beginning and 278.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.72ms. Allocated memory is still 340.8MB. Free memory was 278.4MB in the beginning and 275.6MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 849.62ms. Allocated memory is still 340.8MB. Free memory was 275.6MB in the beginning and 303.9MB in the end (delta: -28.3MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. * TraceAbstraction took 756.70ms. Allocated memory is still 340.8MB. Free memory was 302.8MB in the beginning and 264.0MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. 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: 236]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = 1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L233] CALL, EXPR __ieee754_hypotf(x, y) VAL [\old(x)=251658247, \old(y)=251658247, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=251658247, \old(y)=251658247, a=251658247, b=251658247, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658247, y=251658247] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=251658247, \old(y)=251658247, a=251658247, b=251658247, ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658247, y=251658247] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=251658247, \old(y)=251658247, a=251658247, b=251658247, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658247, y=251658247] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=251658247, \old(y)=251658247, a=251658242, b=251658244, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658247, y=251658247] [L233] RET, EXPR __ieee754_hypotf(x, y) VAL [__ieee754_hypotf(x, y)=251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658247, y=251658247] [L233] float res = __ieee754_hypotf(x, y); [L235] CALL, EXPR isinf_float(res) VAL [\old(x)=251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L214] __int32_t ix; VAL [\old(x)=251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L235] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, one_sqrt=1, res=251658243, tiny_sqrt=1/1000000000000000000000000000000, x=251658247, y=251658247] [L235] COND TRUE !isinf_float(res) [L236] reach_error() VAL [one_sqrt=1, res=251658243, tiny_sqrt=1/1000000000000000000000000000000, x=251658247, y=251658247] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 93 mSDtfsCounter, 9 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=88occurred 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, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 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 [2023-04-02 21:25:40,245 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...