/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:38:38,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:38:38,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:38:39,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:38:39,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:38:39,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:38:39,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:38:39,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:38:39,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:38:39,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:38:39,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:38:39,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:38:39,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:38:39,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:38:39,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:38:39,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:38:39,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:38:39,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:38:39,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:38:39,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:38:39,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:38:39,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:38:39,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:38:39,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:38:39,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:38:39,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:38:39,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:38:39,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:38:39,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:38:39,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:38:39,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:38:39,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:38:39,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:38:39,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:38:39,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:38:39,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:38:39,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:38:39,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:38:39,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:38:39,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:38:39,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:38:39,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:38:39,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:38:39,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:38:39,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:38:39,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:38:39,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:38:39,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:38:39,067 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:38:39,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:38:39,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:38:39,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:38:39,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:38:39,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:38:39,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:38:39,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:38:39,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:38:39,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:38:39,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:38:39,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:38:39,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:38:39,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:38:39,069 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:38:39,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:38:39,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:38:39,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:38:39,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:38:39,070 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:38:39,070 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:38:39,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:38:39,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:38:39,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:38:39,228 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:38:39,228 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:38:39,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c [2022-01-10 17:38:39,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa57e9fc4/d5b3813a90384a46a99e8b10d492dc9b/FLAGb1b51e03b [2022-01-10 17:38:39,686 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:38:39,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c [2022-01-10 17:38:39,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa57e9fc4/d5b3813a90384a46a99e8b10d492dc9b/FLAGb1b51e03b [2022-01-10 17:38:39,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa57e9fc4/d5b3813a90384a46a99e8b10d492dc9b [2022-01-10 17:38:39,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:38:39,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:38:39,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:38:39,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:38:39,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:38:39,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6c029f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39, skipping insertion in model container [2022-01-10 17:38:39,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:38:39,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:38:39,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c[855,868] [2022-01-10 17:38:39,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:38:39,877 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:38:39,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c[855,868] [2022-01-10 17:38:39,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:38:39,908 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:38:39,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39 WrapperNode [2022-01-10 17:38:39,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:38:39,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:38:39,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:38:39,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:38:39,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,950 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-01-10 17:38:39,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:38:39,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:38:39,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:38:39,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:38:39,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:38:39,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:38:39,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:38:39,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:38:39,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (1/1) ... [2022-01-10 17:38:39,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:38:39,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:38:40,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 17:38:40,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 17:38:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:38:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:38:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:38:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:38:40,114 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:38:40,116 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:38:40,208 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:38:40,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:38:40,212 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 17:38:40,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:40 BoogieIcfgContainer [2022-01-10 17:38:40,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:38:40,214 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:38:40,214 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:38:40,215 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:38:40,217 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:40" (1/1) ... [2022-01-10 17:38:40,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:38:40 BasicIcfg [2022-01-10 17:38:40,255 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:38:40,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:38:40,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:38:40,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:38:40,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:38:39" (1/4) ... [2022-01-10 17:38:40,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b394a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:38:40, skipping insertion in model container [2022-01-10 17:38:40,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:39" (2/4) ... [2022-01-10 17:38:40,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b394a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:38:40, skipping insertion in model container [2022-01-10 17:38:40,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:40" (3/4) ... [2022-01-10 17:38:40,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b394a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:38:40, skipping insertion in model container [2022-01-10 17:38:40,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:38:40" (4/4) ... [2022-01-10 17:38:40,261 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant.cTransformedIcfg [2022-01-10 17:38:40,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:38:40,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 17:38:40,293 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:38:40,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:38:40,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 17:38:40,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:38:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 17:38:40,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:38:40,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:38:40,311 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:38:40,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:38:40,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1359376950, now seen corresponding path program 1 times [2022-01-10 17:38:40,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:38:40,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146839642] [2022-01-10 17:38:40,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:38:40,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:38:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:38:40,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:38:40,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:38:40,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146839642] [2022-01-10 17:38:40,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146839642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:38:40,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:38:40,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:38:40,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303494671] [2022-01-10 17:38:40,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:38:40,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 17:38:40,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:38:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 17:38:40,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 17:38:40,496 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:38:40,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:38:40,515 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2022-01-10 17:38:40,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 17:38:40,516 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 17:38:40,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:38:40,523 INFO L225 Difference]: With dead ends: 36 [2022-01-10 17:38:40,523 INFO L226 Difference]: Without dead ends: 15 [2022-01-10 17:38:40,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 17:38:40,527 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:38:40,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:38:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-01-10 17:38:40,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-01-10 17:38:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:38:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-01-10 17:38:40,552 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-01-10 17:38:40,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:38:40,553 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-01-10 17:38:40,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:38:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-01-10 17:38:40,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 17:38:40,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:38:40,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:38:40,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:38:40,555 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:38:40,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:38:40,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1129059404, now seen corresponding path program 1 times [2022-01-10 17:38:40,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:38:40,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060406054] [2022-01-10 17:38:40,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:38:40,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:38:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:38:40,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 17:38:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:38:40,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 17:38:40,656 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 17:38:40,657 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 17:38:40,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:38:40,664 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 17:38:40,666 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 17:38:40,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:38:40 BasicIcfg [2022-01-10 17:38:40,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 17:38:40,704 INFO L158 Benchmark]: Toolchain (without parser) took 1001.02ms. Allocated memory was 161.5MB in the beginning and 212.9MB in the end (delta: 51.4MB). Free memory was 103.4MB in the beginning and 142.9MB in the end (delta: -39.5MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-01-10 17:38:40,705 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 161.5MB. Free memory was 120.2MB in the beginning and 120.1MB in the end (delta: 136.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 17:38:40,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.37ms. Allocated memory was 161.5MB in the beginning and 212.9MB in the end (delta: 51.4MB). Free memory was 103.2MB in the beginning and 187.2MB in the end (delta: -84.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-01-10 17:38:40,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.86ms. Allocated memory is still 212.9MB. Free memory was 186.6MB in the beginning and 185.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 17:38:40,710 INFO L158 Benchmark]: Boogie Preprocessor took 31.24ms. Allocated memory is still 212.9MB. Free memory was 185.1MB in the beginning and 184.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 17:38:40,710 INFO L158 Benchmark]: RCFGBuilder took 230.47ms. Allocated memory is still 212.9MB. Free memory was 184.0MB in the beginning and 172.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 17:38:40,710 INFO L158 Benchmark]: IcfgTransformer took 41.16ms. Allocated memory is still 212.9MB. Free memory was 172.5MB in the beginning and 169.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 17:38:40,711 INFO L158 Benchmark]: TraceAbstraction took 445.99ms. Allocated memory is still 212.9MB. Free memory was 169.3MB in the beginning and 142.9MB in the end (delta: 26.4MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-01-10 17:38:40,716 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 161.5MB. Free memory was 120.2MB in the beginning and 120.1MB in the end (delta: 136.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 203.37ms. Allocated memory was 161.5MB in the beginning and 212.9MB in the end (delta: 51.4MB). Free memory was 103.2MB in the beginning and 187.2MB in the end (delta: -84.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.86ms. Allocated memory is still 212.9MB. Free memory was 186.6MB in the beginning and 185.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.24ms. Allocated memory is still 212.9MB. Free memory was 185.1MB in the beginning and 184.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 230.47ms. Allocated memory is still 212.9MB. Free memory was 184.0MB in the beginning and 172.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 41.16ms. Allocated memory is still 212.9MB. Free memory was 172.5MB in the beginning and 169.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 445.99ms. Allocated memory is still 212.9MB. Free memory was 169.3MB in the beginning and 142.9MB in the end (delta: 26.4MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of floatingLiteral_0.000001_DOUBLE at line 22, overapproximation of fp.geq at line 59, overapproximation of fp.gt at line 33, overapproximation of fp.div at line 44, overapproximation of fp.neg at line 32, overapproximation of floatingLiteral_1.0_DOUBLE at line 28, overapproximation of floatingLiteral_1_DOUBLE at line 52, overapproximation of fp.leq at line 59, overapproximation of fp.lt at line 33, overapproximation of floatingLiteral_1E-8_DOUBLE at line 50, overapproximation of fp.mul at line 30. Possible FailurePath: [L22] double _EPS = 1e-6; [L49] double d, dd, r; [L50] double epsilon = 1e-8; [L52] d = 1. [L52] COND TRUE d <= 20. [L54] dd = __VERIFIER_nondet_double() [L55] CALL assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L55] RET assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L57] CALL, EXPR SqrtR(dd) [L26] double xn, xnp1, residu, lsup, linf; [L27] int i, cond; [L28] COND TRUE Input <= 1.0 [L28] xn = 1.0 [L29] xnp1 = xn [L30] residu = 2.0*_EPS*(xn+xnp1) [L31] lsup = _EPS * (xn+xnp1) [L32] linf = -lsup [L33] cond = ((residu > lsup) || (residu < linf)) [L34] i = 0 VAL [cond=0, i=0] [L35] COND FALSE !(\read(cond)) VAL [cond=0, i=0] [L44] return 1.0 / xnp1; VAL [cond=0, i=0] [L57] RET, EXPR SqrtR(dd) [L57] r = SqrtR(dd) [L59] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-10 17:38:40,748 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...