/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/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:46:22,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:46:22,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:46:22,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:46:22,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:46:22,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:46:22,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:46:22,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:46:22,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:46:22,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:46:22,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:46:22,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:46:22,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:46:22,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:46:22,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:46:22,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:46:22,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:46:22,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:46:22,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:46:22,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:46:22,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:46:22,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:46:22,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:46:22,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:46:22,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:46:22,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:46:22,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:46:22,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:46:22,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:46:22,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:46:22,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:46:22,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:46:22,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:46:22,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:46:22,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:46:22,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:46:22,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:46:22,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:46:22,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:46:22,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:46:22,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:46:22,804 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 [2023-04-01 04:46:22,846 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:46:22,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:46:22,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:46:22,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:46:22,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:46:22,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:46:22,848 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:46:22,848 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:46:22,848 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:46:22,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:46:22,849 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:46:22,849 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:46:22,849 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:46:22,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:46:22,850 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:46:22,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:46:22,850 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:46:22,850 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:46:22,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:46:22,850 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:46:22,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:46:22,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:46:22,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:46:22,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:46:22,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:46:22,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:46:22,851 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:46:22,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:46:22,852 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:46:22,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:46:22,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:46:22,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:46:22,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:46:22,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:46:22,852 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:46:22,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:46:22,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:46:22,853 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:46:22,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:46:22,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:46:22,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:46:22,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:46:23,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:46:23,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:46:23,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:46:23,205 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:46:23,205 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:46:23,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2023-04-01 04:46:24,429 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:46:24,621 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:46:24,627 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2023-04-01 04:46:24,633 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8ba5f77/6a4b63b179d8444b85d9c5c25fcd93a5/FLAG9a8db1680 [2023-04-01 04:46:24,649 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8ba5f77/6a4b63b179d8444b85d9c5c25fcd93a5 [2023-04-01 04:46:24,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:46:24,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:46:24,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:46:24,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:46:24,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:46:24,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:46:24" (1/1) ... [2023-04-01 04:46:24,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed0d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:24, skipping insertion in model container [2023-04-01 04:46:24,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:46:24" (1/1) ... [2023-04-01 04:46:24,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:46:24,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:46:24,999 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/double_req_bl_1131b.c[4119,4132] [2023-04-01 04:46:25,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:46:25,024 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:46:25,090 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/double_req_bl_1131b.c[4119,4132] [2023-04-01 04:46:25,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:46:25,111 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:46:25,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25 WrapperNode [2023-04-01 04:46:25,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:46:25,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:46:25,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:46:25,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:46:25,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,203 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:46:25,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:46:25,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:46:25,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:46:25,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (1/1) ... [2023-04-01 04:46:25,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:46:25,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:46:25,286 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) [2023-04-01 04:46:25,288 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 [2023-04-01 04:46:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:46:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:46:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:46:25,329 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2023-04-01 04:46:25,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2023-04-01 04:46:25,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:46:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 04:46:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:46:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2023-04-01 04:46:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:46:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:46:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:46:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-04-01 04:46:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:46:25,464 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:46:25,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:46:26,138 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:46:26,555 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:46:26,555 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-04-01 04:46:26,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:46:26 BoogieIcfgContainer [2023-04-01 04:46:26,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:46:26,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:46:26,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:46:26,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:46:26,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:46:24" (1/3) ... [2023-04-01 04:46:26,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625c33c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:46:26, skipping insertion in model container [2023-04-01 04:46:26,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:25" (2/3) ... [2023-04-01 04:46:26,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625c33c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:46:26, skipping insertion in model container [2023-04-01 04:46:26,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:46:26" (3/3) ... [2023-04-01 04:46:26,563 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2023-04-01 04:46:26,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:46:26,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:46:26,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:46:26,621 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;@5962bfc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:46:26,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:46:26,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 49 states have internal predecessors, (80), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 04:46:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-01 04:46:26,632 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:46:26,632 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] [2023-04-01 04:46:26,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:46:26,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:46:26,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1415376170, now seen corresponding path program 1 times [2023-04-01 04:46:26,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:46:26,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090564138] [2023-04-01 04:46:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:46:26,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:46:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:46:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:46:26,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:46:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090564138] [2023-04-01 04:46:26,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090564138] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:46:26,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:46:26,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:46:26,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045351022] [2023-04-01 04:46:26,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:46:26,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:46:26,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:46:26,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:46:26,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:46:26,915 INFO L87 Difference]: Start difference. First operand has 58 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 49 states have internal predecessors, (80), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-04-01 04:46:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:46:27,869 INFO L93 Difference]: Finished difference Result 109 states and 170 transitions. [2023-04-01 04:46:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:46:27,872 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), 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 23 [2023-04-01 04:46:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:46:27,876 INFO L225 Difference]: With dead ends: 109 [2023-04-01 04:46:27,877 INFO L226 Difference]: Without dead ends: 53 [2023-04-01 04:46:27,879 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 [2023-04-01 04:46:27,882 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 04:46:27,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 04:46:27,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-04-01 04:46:27,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-04-01 04:46:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.4) internal successors, (63), 45 states have internal predecessors, (63), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 04:46:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2023-04-01 04:46:27,936 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 70 transitions. Word has length 23 [2023-04-01 04:46:27,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:46:27,937 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 70 transitions. [2023-04-01 04:46:27,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-04-01 04:46:27,938 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2023-04-01 04:46:27,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-04-01 04:46:27,939 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:46:27,939 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] [2023-04-01 04:46:27,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:46:27,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:46:27,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:46:27,940 INFO L85 PathProgramCache]: Analyzing trace with hash -33641658, now seen corresponding path program 1 times [2023-04-01 04:46:27,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:46:27,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224097580] [2023-04-01 04:46:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:46:27,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:46:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:46:28,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 04:46:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:46:28,431 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 04:46:28,432 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 04:46:28,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:46:28,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:46:28,437 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 04:46:28,439 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:46:28,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:46:28 BoogieIcfgContainer [2023-04-01 04:46:28,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:46:28,468 INFO L158 Benchmark]: Toolchain (without parser) took 3801.28ms. Allocated memory is still 288.4MB. Free memory was 240.7MB in the beginning and 107.5MB in the end (delta: 133.2MB). Peak memory consumption was 135.3MB. Max. memory is 8.0GB. [2023-04-01 04:46:28,468 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 173.0MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:46:28,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.73ms. Allocated memory is still 288.4MB. Free memory was 240.7MB in the beginning and 226.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-01 04:46:28,471 INFO L158 Benchmark]: Boogie Preprocessor took 106.67ms. Allocated memory is still 288.4MB. Free memory was 226.6MB in the beginning and 223.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 04:46:28,471 INFO L158 Benchmark]: RCFGBuilder took 1337.69ms. Allocated memory is still 288.4MB. Free memory was 223.9MB in the beginning and 196.2MB in the end (delta: 27.8MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. [2023-04-01 04:46:28,473 INFO L158 Benchmark]: TraceAbstraction took 1907.66ms. Allocated memory is still 288.4MB. Free memory was 195.1MB in the beginning and 107.5MB in the end (delta: 87.6MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. [2023-04-01 04:46:28,477 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 173.0MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.73ms. Allocated memory is still 288.4MB. Free memory was 240.7MB in the beginning and 226.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 106.67ms. Allocated memory is still 288.4MB. Free memory was 226.6MB in the beginning and 223.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1337.69ms. Allocated memory is still 288.4MB. Free memory was 223.9MB in the beginning and 196.2MB in the end (delta: 27.8MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. * TraceAbstraction took 1907.66ms. Allocated memory is still 288.4MB. Free memory was 195.1MB in the beginning and 107.5MB in the end (delta: 87.6MB). Peak memory consumption was 88.1MB. 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: 188]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of someBinaryDOUBLEComparisonOperation at line 187. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) VAL [Zero_fmod={4:0}, \old(x)=10737418247, one_fmod=1] [L163] __int32_t hx; VAL [Zero_fmod={4:0}, \old(x)=10737418247, one_fmod=1, x=10737418247] [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] RET isfinite_double(x) VAL [Zero_fmod={4:0}, isfinite_double(x)=-1, one_fmod=1, x=10737418247] [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) VAL [Zero_fmod={4:0}, \old(x)=10737418247, \old(y)=10737418249, one_fmod=1] [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; VAL [Zero_fmod={4:0}, \old(x)=10737418247, \old(y)=10737418249, one_fmod=1, x=10737418247, y=10737418249] [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff [L42] EXPR hy | ly [L42-L43] (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [(hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000)=1, Zero_fmod={4:0}, \old(x)=10737418247, \old(y)=10737418249, hx=2147483647, hy | ((ly | -ly) >> 31)=-1, hy | ly=2147483646, hy=2147483646, lx=10737418241, ly | -ly=-2147483646, ly=2147483646, one_fmod=1, sx=0, x=10737418247, y=10737418249] [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, \old(x)=10737418247, \old(y)=10737418249, hx=2147483647, hy=2147483646, lx=10737418241, ly=2147483646, one_fmod=1, sx=0, x=10737418247, y=10737418249] [L184] RET, EXPR fmod_double(x, y) VAL [Zero_fmod={4:0}, fmod_double(x, y)=10737418248, one_fmod=1, x=10737418247, y=10737418249] [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x VAL [Zero_fmod={4:0}, one_fmod=1, res=10737418248, x=10737418247, y=10737418249] [L188] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=10737418248, x=10737418247, y=10737418249] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 56 mSDtfsCounter, 20 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=58occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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 [2023-04-01 04:46:28,500 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...