./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 06:45:53,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:45:53,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:45:53,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:45:53,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:45:53,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:45:53,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:45:53,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:45:53,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:45:53,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:45:53,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:45:53,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:45:53,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:45:53,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:45:53,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:45:53,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:45:53,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:45:53,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:45:53,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:45:53,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:45:53,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:45:53,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:45:53,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:45:53,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:45:53,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:45:53,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:45:53,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:45:53,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:45:53,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:45:53,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:45:53,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:45:53,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:45:53,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:45:53,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:45:53,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:45:53,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:45:53,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:45:53,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:45:53,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:45:53,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:45:53,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:45:53,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 06:45:53,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:45:53,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:45:53,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:45:53,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:45:53,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:45:53,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:45:53,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:45:53,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:45:53,169 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:45:53,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:45:53,170 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:45:53,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 06:45:53,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:45:53,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:45:53,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:45:53,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:45:53,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:45:53,171 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:45:53,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:45:53,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:45:53,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:45:53,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:45:53,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:45:53,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:45:53,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:45:53,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:45:53,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:45:53,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:45:53,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 06:45:53,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 06:45:53,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:45:53,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:45:53,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:45:53,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:45:53,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd [2021-12-17 06:45:53,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:45:53,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:45:53,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:45:53,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:45:53,364 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:45:53,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2021-12-17 06:45:53,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8e3f6ba/9e1396a25811452ab35e32860c659a9f/FLAGcbbb79ee2 [2021-12-17 06:45:53,789 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:45:53,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2021-12-17 06:45:53,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8e3f6ba/9e1396a25811452ab35e32860c659a9f/FLAGcbbb79ee2 [2021-12-17 06:45:53,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8e3f6ba/9e1396a25811452ab35e32860c659a9f [2021-12-17 06:45:53,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:45:53,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:45:53,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:45:53,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:45:53,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:45:53,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:53,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a2d6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53, skipping insertion in model container [2021-12-17 06:45:53,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:53,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:45:53,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:45:53,945 WARN L230 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-benchs/inv_sqrt_Quake.c[585,598] [2021-12-17 06:45:53,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:45:53,963 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:45:53,971 WARN L230 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-benchs/inv_sqrt_Quake.c[585,598] [2021-12-17 06:45:53,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:45:53,987 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:45:53,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53 WrapperNode [2021-12-17 06:45:53,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:45:53,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:45:53,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:45:53,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:45:53,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:53,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,010 INFO L137 Inliner]: procedures = 18, calls = 17, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2021-12-17 06:45:54,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:45:54,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:45:54,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:45:54,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:45:54,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:45:54,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:45:54,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:45:54,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:45:54,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (1/1) ... [2021-12-17 06:45:54,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:45:54,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:45:54,063 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) [2021-12-17 06:45:54,087 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 [2021-12-17 06:45:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:45:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 06:45:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 06:45:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-17 06:45:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 06:45:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-17 06:45:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:45:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:45:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 06:45:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 06:45:54,148 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:45:54,149 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:45:54,253 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:45:54,256 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:45:54,256 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 06:45:54,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:45:54 BoogieIcfgContainer [2021-12-17 06:45:54,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:45:54,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:45:54,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:45:54,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:45:54,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:45:53" (1/3) ... [2021-12-17 06:45:54,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46587b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:45:54, skipping insertion in model container [2021-12-17 06:45:54,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:53" (2/3) ... [2021-12-17 06:45:54,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46587b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:45:54, skipping insertion in model container [2021-12-17 06:45:54,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:45:54" (3/3) ... [2021-12-17 06:45:54,263 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2021-12-17 06:45:54,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:45:54,266 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 06:45:54,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:45:54,294 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 [2021-12-17 06:45:54,294 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 06:45:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-12-17 06:45:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 06:45:54,303 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:45:54,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:45:54,304 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:45:54,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:45:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-12-17 06:45:54,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:45:54,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74398105] [2021-12-17 06:45:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:45:54,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:45:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:45:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:45:54,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 06:45:54,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74398105] [2021-12-17 06:45:54,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74398105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:45:54,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:45:54,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 06:45:54,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452066100] [2021-12-17 06:45:54,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:45:54,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 06:45:54,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 06:45:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 06:45:54,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:45:54,432 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-12-17 06:45:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:45:54,442 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-12-17 06:45:54,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 06:45:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-12-17 06:45:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:45:54,452 INFO L225 Difference]: With dead ends: 21 [2021-12-17 06:45:54,452 INFO L226 Difference]: Without dead ends: 8 [2021-12-17 06:45:54,454 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 [2021-12-17 06:45:54,458 INFO L933 BasicCegarLoop]: 11 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, 11 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 [2021-12-17 06:45:54,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 06:45:54,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-12-17 06:45:54,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-17 06:45:54,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-12-17 06:45:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-12-17 06:45:54,476 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-12-17 06:45:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:45:54,476 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-12-17 06:45:54,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-12-17 06:45:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-12-17 06:45:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 06:45:54,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:45:54,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:45:54,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 06:45:54,478 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:45:54,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:45:54,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-12-17 06:45:54,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:45:54,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153283845] [2021-12-17 06:45:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:45:54,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:45:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:45:54,530 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 06:45:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:45:54,574 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 06:45:54,574 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 06:45:54,576 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 06:45:54,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 06:45:54,581 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 06:45:54,585 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 06:45:54,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 06:45:54 BoogieIcfgContainer [2021-12-17 06:45:54,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 06:45:54,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 06:45:54,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 06:45:54,608 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 06:45:54,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:45:54" (3/4) ... [2021-12-17 06:45:54,611 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 06:45:54,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 06:45:54,613 INFO L158 Benchmark]: Toolchain (without parser) took 799.95ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 69.8MB in the beginning and 86.5MB in the end (delta: -16.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-12-17 06:45:54,613 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:45:54,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.13ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 73.5MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 06:45:54,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.26ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:45:54,617 INFO L158 Benchmark]: Boogie Preprocessor took 28.47ms. Allocated memory is still 98.6MB. Free memory was 72.0MB in the beginning and 70.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:45:54,617 INFO L158 Benchmark]: RCFGBuilder took 218.36ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 61.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 06:45:54,617 INFO L158 Benchmark]: TraceAbstraction took 348.52ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 60.8MB in the beginning and 87.1MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:45:54,617 INFO L158 Benchmark]: Witness Printer took 3.55ms. Allocated memory is still 119.5MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:45:54,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.13ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 73.5MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.26ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.47ms. Allocated memory is still 98.6MB. Free memory was 72.0MB in the beginning and 70.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 218.36ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 61.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 348.52ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 60.8MB in the beginning and 87.1MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.55ms. Allocated memory is still 119.5MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 13]: 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 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryArithmeticFLOAToperation at line 22. Possible FailurePath: [L45] float a,r; [L47] a = __VERIFIER_nondet_float() [L48] CALL assume_abort_if_not(a >= 0.1f && a <= 100.f) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L48] RET assume_abort_if_not(a >= 0.1f && a <= 100.f) [L50] CALL, EXPR InvSqrt(a) [L22] float xhalf = 0.5f*x; [L23] union float_int i; [L24] i.f = x [L25] EXPR i.i [L25] i.i = 0x5f3759df - (i.i>>1) [L26] EXPR i.f [L26] x = i.f [L27] x = x*(1.5f-xhalf*x*x) [L28] return x; [L28] return x; VAL [\old(x)=1597463008, \result=1597463009, x=1597463009] [L50] RET, EXPR InvSqrt(a) [L50] r = InvSqrt(a) [L52] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 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, 11 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, 11 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=12occurred 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2021-12-17 06:45:54,649 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 06:45:56,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:45:56,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:45:56,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:45:56,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:45:56,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:45:56,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:45:56,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:45:56,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:45:56,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:45:56,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:45:56,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:45:56,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:45:56,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:45:56,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:45:56,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:45:56,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:45:56,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:45:56,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:45:56,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:45:56,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:45:56,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:45:56,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:45:56,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:45:56,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:45:56,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:45:56,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:45:56,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:45:56,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:45:56,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:45:56,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:45:56,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:45:56,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:45:56,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:45:56,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:45:56,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:45:56,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:45:56,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:45:56,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:45:56,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:45:56,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:45:56,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 06:45:56,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:45:56,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:45:56,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:45:56,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:45:56,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:45:56,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:45:56,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:45:56,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:45:56,443 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:45:56,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:45:56,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:45:56,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:45:56,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:45:56,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:45:56,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:45:56,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:45:56,444 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 06:45:56,444 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 06:45:56,444 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 06:45:56,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:45:56,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:45:56,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:45:56,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:45:56,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:45:56,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:45:56,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:45:56,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:45:56,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:45:56,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:45:56,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:45:56,450 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 06:45:56,450 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 06:45:56,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:45:56,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:45:56,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:45:56,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:45:56,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 06:45:56,451 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd [2021-12-17 06:45:56,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:45:56,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:45:56,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:45:56,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:45:56,758 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:45:56,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2021-12-17 06:45:56,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f07ae9a5c/3971c4fb28ad46a3aeba5e78514f664a/FLAG18632dbc9 [2021-12-17 06:45:57,262 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:45:57,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2021-12-17 06:45:57,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f07ae9a5c/3971c4fb28ad46a3aeba5e78514f664a/FLAG18632dbc9 [2021-12-17 06:45:57,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f07ae9a5c/3971c4fb28ad46a3aeba5e78514f664a [2021-12-17 06:45:57,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:45:57,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:45:57,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:45:57,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:45:57,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:45:57,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe873d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57, skipping insertion in model container [2021-12-17 06:45:57,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:45:57,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:45:57,489 WARN L230 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-benchs/inv_sqrt_Quake.c[585,598] [2021-12-17 06:45:57,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:45:57,528 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:45:57,583 WARN L230 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-benchs/inv_sqrt_Quake.c[585,598] [2021-12-17 06:45:57,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:45:57,622 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:45:57,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57 WrapperNode [2021-12-17 06:45:57,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:45:57,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:45:57,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:45:57,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:45:57,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,670 INFO L137 Inliner]: procedures = 21, calls = 17, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2021-12-17 06:45:57,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:45:57,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:45:57,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:45:57,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:45:57,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:45:57,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:45:57,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:45:57,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:45:57,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (1/1) ... [2021-12-17 06:45:57,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:45:57,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:45:57,778 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) [2021-12-17 06:45:57,819 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 [2021-12-17 06:45:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:45:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 06:45:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 06:45:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-17 06:45:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 06:45:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:45:57,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:45:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-17 06:45:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 06:45:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 06:45:57,929 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:45:57,931 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:46:00,221 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:46:00,225 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:46:00,225 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 06:46:00,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:46:00 BoogieIcfgContainer [2021-12-17 06:46:00,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:46:00,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:46:00,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:46:00,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:46:00,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:45:57" (1/3) ... [2021-12-17 06:46:00,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dc4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:46:00, skipping insertion in model container [2021-12-17 06:46:00,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:45:57" (2/3) ... [2021-12-17 06:46:00,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dc4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:46:00, skipping insertion in model container [2021-12-17 06:46:00,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:46:00" (3/3) ... [2021-12-17 06:46:00,240 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2021-12-17 06:46:00,245 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:46:00,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 06:46:00,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:46:00,302 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 [2021-12-17 06:46:00,303 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 06:46:00,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-12-17 06:46:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 06:46:00,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:46:00,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:46:00,322 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:46:00,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:46:00,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-12-17 06:46:00,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:46:00,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708149560] [2021-12-17 06:46:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:46:00,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:46:00,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:46:00,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 06:46:00,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 06:46:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:46:00,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 06:46:00,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:46:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:46:00,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 06:46:00,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:46:00,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708149560] [2021-12-17 06:46:00,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708149560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:46:00,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:46:00,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 06:46:00,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615346513] [2021-12-17 06:46:00,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:46:00,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 06:46:00,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:46:00,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 06:46:00,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:46:00,616 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-12-17 06:46:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:46:00,624 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-12-17 06:46:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 06:46:00,625 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-12-17 06:46:00,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:46:00,629 INFO L225 Difference]: With dead ends: 21 [2021-12-17 06:46:00,629 INFO L226 Difference]: Without dead ends: 8 [2021-12-17 06:46:00,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:46:00,634 INFO L933 BasicCegarLoop]: 11 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, 11 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 [2021-12-17 06:46:00,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 06:46:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-12-17 06:46:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-17 06:46:00,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-12-17 06:46:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-12-17 06:46:00,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-12-17 06:46:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:46:00,651 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-12-17 06:46:00,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-12-17 06:46:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-12-17 06:46:00,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 06:46:00,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:46:00,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:46:00,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-17 06:46:00,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:46:00,864 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:46:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:46:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-12-17 06:46:00,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:46:00,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523569491] [2021-12-17 06:46:00,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:46:00,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:46:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:46:00,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 06:46:00,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 06:46:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:46:01,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-17 06:46:01,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:46:15,709 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_5|)))) (and (= |c_ULTIMATE.start_InvSqrt_#res#1| (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_5| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) (fp.geq .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) c_currentRoundingMode 100.0)))))) is different from false [2021-12-17 06:47:56,879 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_5|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (let ((.cse3 (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_5| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse4) .cse4)))))) (let ((.cse1 (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse3) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (.cse2 (fp.geq .cse3 (_ +zero 8 24)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse1) (not .cse2))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2))))))) is different from false [2021-12-17 06:47:58,913 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_5|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (let ((.cse3 (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_5| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse4) .cse4)))))) (let ((.cse1 (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse3) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (.cse2 (fp.geq .cse3 (_ +zero 8 24)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse1) (not .cse2))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2))))))) is different from true [2021-12-17 06:48:47,754 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_5|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_5| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse2) .cse2)))))) (or (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (not (fp.geq .cse1 (_ +zero 8 24)))))))) is different from false [2021-12-17 06:48:49,789 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_5|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_5| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse2) .cse2)))))) (or (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (not (fp.geq .cse1 (_ +zero 8 24)))))))) is different from true [2021-12-17 06:48:49,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:48:49,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 06:48:49,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:48:49,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523569491] [2021-12-17 06:48:49,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523569491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:48:49,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:48:49,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 06:48:49,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362769961] [2021-12-17 06:48:49,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:48:49,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 06:48:49,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:48:49,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 06:48:49,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=12, Unknown=5, NotChecked=24, Total=56 [2021-12-17 06:48:49,793 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-12-17 06:48:52,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 06:48:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:48:52,041 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-12-17 06:48:52,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 06:48:52,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 7 [2021-12-17 06:48:52,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:48:52,100 INFO L225 Difference]: With dead ends: 8 [2021-12-17 06:48:52,100 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 06:48:52,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=20, Invalid=17, Unknown=5, NotChecked=30, Total=72 [2021-12-17 06:48:52,101 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 06:48:52,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 11 Unchecked, 2.1s Time] [2021-12-17 06:48:52,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 06:48:52,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 06:48:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-17 06:48:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 06:48:52,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-12-17 06:48:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:48:52,103 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 06:48:52,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-12-17 06:48:52,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 06:48:52,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 06:48:52,105 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 06:48:52,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 06:48:52,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:48:52,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 06:49:02,553 WARN L227 SmtUtils]: Spent 10.24s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-17 06:49:02,558 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 06:49:02,558 INFO L858 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-12-17 06:49:02,558 INFO L858 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-12-17 06:49:02,558 INFO L858 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2021-12-17 06:49:02,558 INFO L861 garLoopResultBuilder]: At program point L13-3(line 13) the Hoare annotation is: true [2021-12-17 06:49:02,558 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 06:49:02,558 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 06:49:02,558 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 06:49:02,559 INFO L854 garLoopResultBuilder]: At program point L28(lines 20 29) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_5|)))) (and (= |ULTIMATE.start_InvSqrt_#res#1| (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_5| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul currentRoundingMode .cse0 (fp.sub currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 3.0 2.0)) (fp.mul currentRoundingMode (fp.mul currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) (fp.geq .cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) currentRoundingMode 100.0)))))) [2021-12-17 06:49:02,559 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-12-17 06:49:02,559 INFO L861 garLoopResultBuilder]: At program point L53(lines 43 54) the Hoare annotation is: true [2021-12-17 06:49:02,559 INFO L858 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2021-12-17 06:49:02,561 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 06:49:02,562 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 06:49:02,565 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:456) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-17 06:49:02,568 INFO L158 Benchmark]: Toolchain (without parser) took 185277.20ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 43.0MB in the beginning and 41.3MB in the end (delta: 1.8MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-12-17 06:49:02,568 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 44.4MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:49:02,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.93ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 45.2MB in the end (delta: -2.3MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-12-17 06:49:02,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.93ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 43.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:49:02,569 INFO L158 Benchmark]: Boogie Preprocessor took 44.15ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 42.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:49:02,570 INFO L158 Benchmark]: RCFGBuilder took 2510.14ms. Allocated memory is still 62.9MB. Free memory was 42.2MB in the beginning and 32.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 06:49:02,570 INFO L158 Benchmark]: TraceAbstraction took 182339.74ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 31.7MB in the beginning and 41.3MB in the end (delta: -9.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-12-17 06:49:02,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 44.4MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.93ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 45.2MB in the end (delta: -2.3MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.93ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 43.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.15ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 42.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2510.14ms. Allocated memory is still 62.9MB. Free memory was 42.2MB in the beginning and 32.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 182339.74ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 31.7MB in the beginning and 41.3MB in the end (delta: -9.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 182.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 11 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 121 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 10.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 168.4s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 3 QuantifiedInterpolants, 799 SizeOfPredicates, 12 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-17 06:49:02,688 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias