/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 IntervalDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:47:06,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:47:06,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:47:06,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:47:06,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:47:06,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:47:06,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:47:06,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:47:06,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:47:06,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:47:06,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:47:06,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:47:06,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:47:06,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:47:06,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:47:06,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:47:06,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:47:06,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:47:06,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:47:06,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:47:06,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:47:06,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:47:06,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:47:06,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:47:06,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 22:47:06,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:47:06,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:47:06,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:47:06,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:47:06,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:47:06,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:47:06,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:47:06,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:47:06,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:47:06,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:47:06,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:47:06,097 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 [2023-03-31 22:47:06,126 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:47:06,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:47:06,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:47:06,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:47:06,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:47:06,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:47:06,128 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:47:06,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:47:06,128 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:47:06,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:47:06,129 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:47:06,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:47:06,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:47:06,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:47:06,130 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:47:06,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:47:06,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:47:06,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:47:06,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:47:06,131 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:47:06,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:47:06,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:47:06,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:47:06,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:47:06,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:47:06,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:47:06,132 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:47:06,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:47:06,132 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:47:06,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:47:06,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:47:06,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:47:06,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:47:06,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:47:06,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:47:06,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:47:06,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:47:06,133 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:47:06,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:47:06,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:47:06,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:47:06,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:47:06,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:47:06,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:47:06,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:47:06,379 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:47:06,379 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:47:06,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2023-03-31 22:47:07,583 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:47:07,776 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:47:07,776 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2023-03-31 22:47:07,783 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e8af524/5b646326378648f793e507ff690c1ecc/FLAG7724efef0 [2023-03-31 22:47:07,798 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e8af524/5b646326378648f793e507ff690c1ecc [2023-03-31 22:47:07,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:47:07,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:47:07,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:47:07,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:47:07,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:47:07,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:47:07" (1/1) ... [2023-03-31 22:47:07,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402c0bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:07, skipping insertion in model container [2023-03-31 22:47:07,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:47:07" (1/1) ... [2023-03-31 22:47:07,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:47:07,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:47:07,991 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_1130b.c[2909,2922] [2023-03-31 22:47:07,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:47:08,004 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:47:08,033 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_1130b.c[2909,2922] [2023-03-31 22:47:08,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:47:08,048 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:47:08,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08 WrapperNode [2023-03-31 22:47:08,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:47:08,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:47:08,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:47:08,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:47:08,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,092 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:47:08,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:47:08,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:47:08,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:47:08,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (1/1) ... [2023-03-31 22:47:08,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:47:08,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:47:08,142 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) [2023-03-31 22:47:08,148 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 [2023-03-31 22:47:08,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:47:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:47:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:47:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2023-03-31 22:47:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2023-03-31 22:47:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:47:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 22:47:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:47:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:47:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 22:47:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:47:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2023-03-31 22:47:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:47:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:47:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:47:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-03-31 22:47:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:47:08,252 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:47:08,253 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:47:08,678 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:47:08,926 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:47:08,926 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-03-31 22:47:08,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:47:08 BoogieIcfgContainer [2023-03-31 22:47:08,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:47:08,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:47:08,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:47:08,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:47:08,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:47:07" (1/3) ... [2023-03-31 22:47:08,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb902c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:47:08, skipping insertion in model container [2023-03-31 22:47:08,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:08" (2/3) ... [2023-03-31 22:47:08,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb902c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:47:08, skipping insertion in model container [2023-03-31 22:47:08,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:47:08" (3/3) ... [2023-03-31 22:47:08,937 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2023-03-31 22:47:08,954 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:47:08,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:47:08,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:47:08,999 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;@1728c1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:47:08,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:47:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 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) [2023-03-31 22:47:09,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-03-31 22:47:09,012 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:47:09,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:47:09,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:47:09,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:47:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1645221454, now seen corresponding path program 1 times [2023-03-31 22:47:09,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:47:09,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65789943] [2023-03-31 22:47:09,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:47:09,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:47:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:47:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:47:09,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:47:09,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65789943] [2023-03-31 22:47:09,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65789943] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:47:09,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:47:09,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:47:09,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403385990] [2023-03-31 22:47:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:47:09,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:47:09,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:47:09,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:47:09,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:47:09,227 INFO L87 Difference]: Start difference. First operand has 54 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 22:47:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:47:09,336 INFO L93 Difference]: Finished difference Result 100 states and 152 transitions. [2023-03-31 22:47:09,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:47:09,338 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-03-31 22:47:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:47:09,344 INFO L225 Difference]: With dead ends: 100 [2023-03-31 22:47:09,344 INFO L226 Difference]: Without dead ends: 49 [2023-03-31 22:47:09,348 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 [2023-03-31 22:47:09,354 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 22:47:09,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 22:47:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-03-31 22:47:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-03-31 22:47:09,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 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) [2023-03-31 22:47:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2023-03-31 22:47:09,395 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 18 [2023-03-31 22:47:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:47:09,395 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2023-03-31 22:47:09,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 22:47:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2023-03-31 22:47:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-03-31 22:47:09,396 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:47:09,396 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] [2023-03-31 22:47:09,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:47:09,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:47:09,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:47:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash -359147445, now seen corresponding path program 1 times [2023-03-31 22:47:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:47:09,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237121564] [2023-03-31 22:47:09,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:47:09,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:47:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:47:09,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 22:47:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:47:09,552 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 22:47:09,552 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 22:47:09,553 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 22:47:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:47:09,557 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 22:47:09,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:47:09,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:47:09 BoogieIcfgContainer [2023-03-31 22:47:09,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:47:09,578 INFO L158 Benchmark]: Toolchain (without parser) took 1776.60ms. Allocated memory is still 226.5MB. Free memory was 179.1MB in the beginning and 153.0MB in the end (delta: 26.1MB). Peak memory consumption was 27.1MB. Max. memory is 8.0GB. [2023-03-31 22:47:09,578 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:47:09,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.05ms. Allocated memory is still 226.5MB. Free memory was 179.1MB in the beginning and 166.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 22:47:09,579 INFO L158 Benchmark]: Boogie Preprocessor took 47.89ms. Allocated memory is still 226.5MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 22:47:09,580 INFO L158 Benchmark]: RCFGBuilder took 831.26ms. Allocated memory is still 226.5MB. Free memory was 164.4MB in the beginning and 188.1MB in the end (delta: -23.7MB). Peak memory consumption was 46.0MB. Max. memory is 8.0GB. [2023-03-31 22:47:09,580 INFO L158 Benchmark]: TraceAbstraction took 646.32ms. Allocated memory is still 226.5MB. Free memory was 187.6MB in the beginning and 153.0MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-03-31 22:47:09,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 246.05ms. Allocated memory is still 226.5MB. Free memory was 179.1MB in the beginning and 166.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.89ms. Allocated memory is still 226.5MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 831.26ms. Allocated memory is still 226.5MB. Free memory was 164.4MB in the beginning and 188.1MB in the end (delta: -23.7MB). Peak memory consumption was 46.0MB. Max. memory is 8.0GB. * TraceAbstraction took 646.32ms. Allocated memory is still 226.5MB. Free memory was 187.6MB in the beginning and 153.0MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of bitwiseOr at line 33, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someUnaryFLOAToperation at line 128, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L128] float x = -0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) VAL [Zero_fmod={4:0}, one_fmod=1] [L133] CALL, EXPR fmod_float(x, y) VAL [Zero_fmod={4:0}, \old(x)=2147483656, \old(y)=2147483657, one_fmod=1] [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, \old(x)=2147483656, \old(y)=2147483657, one_fmod=1, x=2147483656, y=2147483657] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, \old(x)=2147483656, \old(y)=2147483657, hx=7, hy=0, one_fmod=1, sx=-2147483648, x=2147483656, y=2147483657] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, \old(x)=2147483656, \old(y)=2147483657, hx=7, hy=0, one_fmod=1, sx=-2147483648, x=2147483656, y=2147483657] [L133] RET, EXPR fmod_float(x, y) VAL [Zero_fmod={4:0}, fmod_float(x, y)=2147483654, one_fmod=1, x=2147483656, y=2147483657] [L133] float res = fmod_float(x, y); [L136] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [Zero_fmod={4:0}, one_fmod=1, res == -0.0f && __signbit_float(res) == 1=0, res=2147483654, x=2147483656, y=2147483657] [L136] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L137] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=2147483654, x=2147483656, y=2147483657] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 54 mSDtfsCounter, 14 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=54occurred 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, 0.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 [2023-03-31 22:47:09,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...