/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_BITWISE.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 11:48:37,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 11:48:37,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 11:48:37,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 11:48:37,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 11:48:37,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 11:48:37,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 11:48:37,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 11:48:37,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 11:48:37,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 11:48:37,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 11:48:37,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 11:48:37,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 11:48:37,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 11:48:37,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 11:48:37,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 11:48:37,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 11:48:37,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 11:48:37,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 11:48:37,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 11:48:37,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 11:48:37,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 11:48:37,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 11:48:37,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 11:48:37,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 11:48:37,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 11:48:37,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 11:48:37,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 11:48:37,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 11:48:37,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 11:48:37,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 11:48:37,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 11:48:37,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 11:48:37,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 11:48:37,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 11:48:37,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 11:48:37,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 11:48:37,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 11:48:37,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 11:48:37,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 11:48:37,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 11:48:37,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 11:48:37,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 11:48:37,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 11:48:37,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 11:48:37,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 11:48:37,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 11:48:37,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 11:48:37,619 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 11:48:37,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 11:48:37,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 11:48:37,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 11:48:37,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 11:48:37,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:48:37,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 11:48:37,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 11:48:37,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 11:48:37,622 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 11:48:37,622 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 11:48:37,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 11:48:37,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 11:48:37,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 11:48:37,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 11:48:37,834 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 11:48:37,835 INFO L432 ainManager$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 11:48:37,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2154194b/da8fea77f60c478c81129cd38aa51c0d/FLAGd0915c205 [2022-01-10 11:48:38,161 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 11:48:38,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c [2022-01-10 11:48:38,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2154194b/da8fea77f60c478c81129cd38aa51c0d/FLAGd0915c205 [2022-01-10 11:48:38,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2154194b/da8fea77f60c478c81129cd38aa51c0d [2022-01-10 11:48:38,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 11:48:38,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 11:48:38,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 11:48:38,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 11:48:38,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 11:48:38,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac65931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38, skipping insertion in model container [2022-01-10 11:48:38,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 11:48:38,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 11:48:38,759 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 11:48:38,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:48:38,780 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 11:48:38,788 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 11:48:38,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:48:38,801 INFO L208 MainTranslator]: Completed translation [2022-01-10 11:48:38,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38 WrapperNode [2022-01-10 11:48:38,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 11:48:38,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 11:48:38,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 11:48:38,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 11:48:38,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,829 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-01-10 11:48:38,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 11:48:38,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 11:48:38,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 11:48:38,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 11:48:38,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 11:48:38,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 11:48:38,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 11:48:38,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 11:48:38,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (1/1) ... [2022-01-10 11:48:38,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:48:38,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 11:48:38,886 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 11:48:38,901 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 11:48:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 11:48:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 11:48:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 11:48:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 11:48:38,966 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 11:48:38,967 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 11:48:39,141 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 11:48:39,145 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 11:48:39,145 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 11:48:39,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:39 BoogieIcfgContainer [2022-01-10 11:48:39,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 11:48:39,147 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 11:48:39,147 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 11:48:39,147 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 11:48:39,149 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:39" (1/1) ... [2022-01-10 11:48:39,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:39 BasicIcfg [2022-01-10 11:48:39,184 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 11:48:39,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 11:48:39,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 11:48:39,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 11:48:39,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:48:38" (1/4) ... [2022-01-10 11:48:39,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac91cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:39, skipping insertion in model container [2022-01-10 11:48:39,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:38" (2/4) ... [2022-01-10 11:48:39,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac91cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:39, skipping insertion in model container [2022-01-10 11:48:39,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:39" (3/4) ... [2022-01-10 11:48:39,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac91cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:48:39, skipping insertion in model container [2022-01-10 11:48:39,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:39" (4/4) ... [2022-01-10 11:48:39,188 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant.cTransformedIcfg [2022-01-10 11:48:39,192 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 11:48:39,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 11:48:39,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 11:48:39,244 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 11:48:39,244 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 11:48:39,254 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 11:48:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 11:48:39,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:48:39,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:48:39,257 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:48:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:48:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1359376950, now seen corresponding path program 1 times [2022-01-10 11:48:39,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:48:39,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274067844] [2022-01-10 11:48:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:48:39,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:48:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:48:39,397 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 11:48:39,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:48:39,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274067844] [2022-01-10 11:48:39,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274067844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:48:39,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:48:39,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 11:48:39,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623026706] [2022-01-10 11:48:39,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:48:39,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 11:48:39,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:48:39,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 11:48:39,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 11:48:39,425 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 11:48:39,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:48:39,438 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2022-01-10 11:48:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 11:48:39,440 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 11:48:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:48:39,447 INFO L225 Difference]: With dead ends: 36 [2022-01-10 11:48:39,447 INFO L226 Difference]: Without dead ends: 15 [2022-01-10 11:48:39,452 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 11:48:39,454 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 11:48:39,455 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 11:48:39,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-01-10 11:48:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-01-10 11:48:39,477 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 11:48:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-01-10 11:48:39,478 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-01-10 11:48:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:48:39,478 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-01-10 11:48:39,478 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 11:48:39,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-01-10 11:48:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 11:48:39,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:48:39,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:48:39,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 11:48:39,480 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:48:39,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:48:39,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1129059404, now seen corresponding path program 1 times [2022-01-10 11:48:39,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:48:39,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697744264] [2022-01-10 11:48:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:48:39,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:48:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 11:48:39,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 11:48:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 11:48:39,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 11:48:39,524 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 11:48:39,525 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 11:48:39,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 11:48:39,529 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 11:48:39,530 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 11:48:39,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:48:39 BasicIcfg [2022-01-10 11:48:39,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 11:48:39,562 INFO L158 Benchmark]: Toolchain (without parser) took 955.19ms. Allocated memory is still 191.9MB. Free memory was 140.4MB in the beginning and 124.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.6MB. Max. memory is 8.0GB. [2022-01-10 11:48:39,564 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 11:48:39,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.96ms. Allocated memory is still 191.9MB. Free memory was 140.3MB in the beginning and 167.2MB in the end (delta: -26.9MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. [2022-01-10 11:48:39,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.49ms. Allocated memory is still 191.9MB. Free memory was 167.2MB in the beginning and 165.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 11:48:39,566 INFO L158 Benchmark]: Boogie Preprocessor took 14.81ms. Allocated memory is still 191.9MB. Free memory was 165.6MB in the beginning and 164.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 11:48:39,566 INFO L158 Benchmark]: RCFGBuilder took 301.30ms. Allocated memory is still 191.9MB. Free memory was 164.1MB in the beginning and 153.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-10 11:48:39,567 INFO L158 Benchmark]: IcfgTransformer took 37.00ms. Allocated memory is still 191.9MB. Free memory was 153.6MB in the beginning and 150.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 11:48:39,567 INFO L158 Benchmark]: TraceAbstraction took 376.93ms. Allocated memory is still 191.9MB. Free memory was 150.1MB in the beginning and 124.7MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-01-10 11:48:39,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 182.96ms. Allocated memory is still 191.9MB. Free memory was 140.3MB in the beginning and 167.2MB in the end (delta: -26.9MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.49ms. Allocated memory is still 191.9MB. Free memory was 167.2MB in the beginning and 165.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.81ms. Allocated memory is still 191.9MB. Free memory was 165.6MB in the beginning and 164.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 301.30ms. Allocated memory is still 191.9MB. Free memory was 164.1MB in the beginning and 153.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 37.00ms. Allocated memory is still 191.9MB. Free memory was 153.6MB in the beginning and 150.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 376.93ms. Allocated memory is still 191.9MB. Free memory was 150.1MB in the beginning and 124.7MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. 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: 0.3s, 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, 0.0s 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 11:48:39,602 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...