./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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 ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.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 3cf66c963cee9d423d7bbfded96bc288d1ae256e ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.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 3cf66c963cee9d423d7bbfded96bc288d1ae256e ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 14:09:43,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:09:43,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:09:43,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:09:43,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:09:43,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:09:43,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:09:43,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:09:43,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:09:43,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:09:43,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:09:43,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:09:43,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:09:43,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:09:43,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:09:43,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:09:43,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:09:43,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:09:43,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:09:43,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:09:43,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:09:43,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:09:43,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:09:43,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:09:43,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:09:43,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:09:43,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:09:43,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:09:43,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:09:43,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:09:43,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:09:43,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:09:43,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:09:43,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:09:43,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:09:43,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:09:43,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:09:43,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:09:43,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:09:43,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:09:43,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:09:43,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:09:43,350 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:09:43,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:09:43,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:09:43,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:09:43,356 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:09:43,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:09:43,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:09:43,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:09:43,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:09:43,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:09:43,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:09:43,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:09:43,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:09:43,359 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:09:43,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:09:43,360 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:09:43,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:09:43,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:09:43,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:09:43,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:09:43,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:09:43,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:09:43,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:09:43,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:09:43,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:09:43,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:09:43,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:09:43,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:09:43,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:09:43,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-12-02 14:09:43,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:09:43,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:09:43,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:09:43,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:09:43,815 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:09:43,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c [2020-12-02 14:09:43,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4357fdb6/326d9f3f3519484da515840740455f66/FLAG1f15cbb62 [2020-12-02 14:09:44,457 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:09:44,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c [2020-12-02 14:09:44,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4357fdb6/326d9f3f3519484da515840740455f66/FLAG1f15cbb62 [2020-12-02 14:09:44,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4357fdb6/326d9f3f3519484da515840740455f66 [2020-12-02 14:09:44,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:09:44,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:09:44,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:44,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:09:44,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:09:44,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:44" (1/1) ... [2020-12-02 14:09:44,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db69cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:44, skipping insertion in model container [2020-12-02 14:09:44,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:44" (1/1) ... [2020-12-02 14:09:44,877 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:09:44,903 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:09:45,115 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c[352,365] [2020-12-02 14:09:45,120 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:45,132 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:09:45,146 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c[352,365] [2020-12-02 14:09:45,147 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:45,163 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:09:45,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45 WrapperNode [2020-12-02 14:09:45,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:45,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:45,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:09:45,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:09:45,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:45,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:09:45,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:09:45,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:09:45,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... [2020-12-02 14:09:45,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:09:45,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:09:45,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:09:45,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:09:45,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:09:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:09:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:09:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 14:09:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:09:45,543 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:09:45,543 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 14:09:45,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:45 BoogieIcfgContainer [2020-12-02 14:09:45,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:09:45,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:09:45,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:09:45,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:09:45,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:09:44" (1/3) ... [2020-12-02 14:09:45,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee94ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:45, skipping insertion in model container [2020-12-02 14:09:45,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:45" (2/3) ... [2020-12-02 14:09:45,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee94ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:45, skipping insertion in model container [2020-12-02 14:09:45,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:45" (3/3) ... [2020-12-02 14:09:45,556 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-12-02 14:09:45,576 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:09:45,580 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:09:45,597 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:09:45,632 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:09:45,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:09:45,633 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:09:45,633 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:09:45,633 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:09:45,636 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:09:45,636 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:09:45,637 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:09:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-02 14:09:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:09:45,704 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:09:45,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:09:45,707 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:09:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:09:45,724 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-02 14:09:45,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:09:45,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381846102] [2020-12-02 14:09:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:09:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:09:45,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:09:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:09:45,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:09:45,932 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 14:09:45,933 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 14:09:45,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 14:09:45,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:09:45 BoogieIcfgContainer [2020-12-02 14:09:45,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:09:45,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:09:45,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:09:45,960 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:09:45,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:45" (3/4) ... [2020-12-02 14:09:45,965 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 14:09:45,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:09:45,969 INFO L168 Benchmark]: Toolchain (without parser) took 1114.74 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 20.1 MB in the beginning and 27.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:45,970 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory was 22.7 MB in the beginning and 22.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:45,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.31 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 22.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:45,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 41.9 MB. Free memory was 22.0 MB in the beginning and 20.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:45,974 INFO L168 Benchmark]: Boogie Preprocessor took 22.39 ms. Allocated memory is still 41.9 MB. Free memory was 20.7 MB in the beginning and 19.7 MB in the end (delta: 929.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:45,975 INFO L168 Benchmark]: RCFGBuilder took 321.75 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.7 MB in the beginning and 27.7 MB in the end (delta: -7.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:45,976 INFO L168 Benchmark]: TraceAbstraction took 411.42 ms. Allocated memory is still 50.3 MB. Free memory was 27.4 MB in the beginning and 27.9 MB in the end (delta: -527.9 kB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:45,977 INFO L168 Benchmark]: Witness Printer took 6.03 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 27.5 MB in the end (delta: 400.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:45,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory was 22.7 MB in the beginning and 22.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.31 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 22.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 41.9 MB. Free memory was 22.0 MB in the beginning and 20.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.39 ms. Allocated memory is still 41.9 MB. Free memory was 20.7 MB in the beginning and 19.7 MB in the end (delta: 929.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.75 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.7 MB in the beginning and 27.7 MB in the end (delta: -7.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 411.42 ms. Allocated memory is still 50.3 MB. Free memory was 27.4 MB in the beginning and 27.9 MB in the end (delta: -527.9 kB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Witness Printer took 6.03 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 27.5 MB in the end (delta: 400.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 9, overapproximation of to_real at line 10. Possible FailurePath: [L6] unsigned int i, j; [L7] double d; [L9] i=100.0 [L10] d=i [L11] j=d [L12] COND TRUE !(j==100) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 14:09:48,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:09:48,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:09:48,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:09:48,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:09:48,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:09:48,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:09:48,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:09:48,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:09:48,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:09:48,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:09:48,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:09:48,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:09:48,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:09:48,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:09:48,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:09:48,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:09:48,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:09:48,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:09:48,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:09:48,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:09:48,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:09:48,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:09:48,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:09:48,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:09:48,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:09:48,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:09:48,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:09:48,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:09:48,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:09:48,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:09:48,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:09:48,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:09:48,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:09:48,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:09:48,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:09:48,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:09:48,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:09:48,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:09:48,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:09:48,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:09:48,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:09:48,764 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:09:48,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:09:48,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:09:48,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:09:48,769 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:09:48,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:09:48,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:09:48,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:09:48,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:09:48,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:09:48,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:09:48,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:09:48,773 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:09:48,773 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:09:48,773 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:09:48,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:09:48,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:09:48,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:09:48,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:09:48,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:09:48,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:09:48,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:09:48,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:09:48,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:09:48,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:09:48,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:09:48,777 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:09:48,777 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:09:48,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:09:48,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:09:48,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:09:48,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-12-02 14:09:49,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:09:49,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:09:49,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:09:49,265 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:09:49,266 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:09:49,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c [2020-12-02 14:09:49,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e790b0499/d3f5bf28983b4705b666c3032ccc22ed/FLAG6db84de45 [2020-12-02 14:09:50,035 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:09:50,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c [2020-12-02 14:09:50,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e790b0499/d3f5bf28983b4705b666c3032ccc22ed/FLAG6db84de45 [2020-12-02 14:09:50,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e790b0499/d3f5bf28983b4705b666c3032ccc22ed [2020-12-02 14:09:50,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:09:50,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:09:50,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:50,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:09:50,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:09:50,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703e2510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50, skipping insertion in model container [2020-12-02 14:09:50,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,450 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:09:50,468 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:09:50,655 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c[352,365] [2020-12-02 14:09:50,663 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:50,682 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:09:50,700 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c[352,365] [2020-12-02 14:09:50,701 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:50,720 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:09:50,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50 WrapperNode [2020-12-02 14:09:50,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:50,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:50,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:09:50,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:09:50,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:50,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:09:50,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:09:50,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:09:50,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:09:50,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:09:50,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:09:50,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:09:50,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:09:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 14:09:50,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:09:50,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:09:50,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:09:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:09:52,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:09:52,488 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 14:09:52,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:52 BoogieIcfgContainer [2020-12-02 14:09:52,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:09:52,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:09:52,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:09:52,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:09:52,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:09:50" (1/3) ... [2020-12-02 14:09:52,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b306859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:52, skipping insertion in model container [2020-12-02 14:09:52,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50" (2/3) ... [2020-12-02 14:09:52,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b306859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:52, skipping insertion in model container [2020-12-02 14:09:52,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:52" (3/3) ... [2020-12-02 14:09:52,499 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-12-02 14:09:52,515 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:09:52,519 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:09:52,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:09:52,561 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:09:52,561 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:09:52,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:09:52,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:09:52,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:09:52,562 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:09:52,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:09:52,562 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:09:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-02 14:09:52,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:09:52,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:09:52,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:09:52,585 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:09:52,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:09:52,590 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-02 14:09:52,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:09:52,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550132770] [2020-12-02 14:09:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 14:09:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:09:52,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-02 14:09:52,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:09:55,699 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 14:09:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:09:55,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:09:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:09:57,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550132770] [2020-12-02 14:09:57,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:09:57,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-02 14:09:57,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271315386] [2020-12-02 14:09:57,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 14:09:57,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:09:57,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 14:09:57,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:09:57,149 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2020-12-02 14:09:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:09:59,428 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-02 14:09:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 14:09:59,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-02 14:09:59,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:09:59,437 INFO L225 Difference]: With dead ends: 11 [2020-12-02 14:09:59,437 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 14:09:59,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:09:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 14:09:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 14:09:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 14:09:59,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 14:09:59,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-02 14:09:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:09:59,466 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 14:09:59,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 14:09:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 14:09:59,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 14:09:59,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:09:59,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 14:09:59,674 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 14:09:59,674 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 14:09:59,675 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 14:09:59,675 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 14:09:59,675 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-02 14:09:59,675 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-02 14:09:59,675 INFO L262 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-12-02 14:09:59,675 INFO L262 CegarLoopResult]: For program point L4(lines 4 13) no Hoare annotation was computed. [2020-12-02 14:09:59,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:09:59 BoogieIcfgContainer [2020-12-02 14:09:59,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:09:59,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:09:59,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:09:59,682 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:09:59,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:52" (3/4) ... [2020-12-02 14:09:59,686 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 14:09:59,698 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-02 14:09:59,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 14:09:59,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-02 14:09:59,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:09:59,737 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 14:09:59,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:09:59,739 INFO L168 Benchmark]: Toolchain (without parser) took 9313.98 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 26.6 MB in the end (delta: 372.6 kB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:59,740 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory is still 23.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:59,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.73 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 27.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:59,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.31 ms. Allocated memory is still 50.3 MB. Free memory was 27.8 MB in the beginning and 26.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:59,742 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 25.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:59,743 INFO L168 Benchmark]: RCFGBuilder took 1692.33 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 27.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:59,744 INFO L168 Benchmark]: TraceAbstraction took 7189.57 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 28.9 MB in the end (delta: -1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:59,745 INFO L168 Benchmark]: Witness Printer took 56.40 ms. Allocated memory is still 50.3 MB. Free memory was 28.9 MB in the beginning and 26.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:59,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory is still 23.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.73 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 27.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.31 ms. Allocated memory is still 50.3 MB. Free memory was 27.8 MB in the beginning and 26.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 25.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1692.33 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 27.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7189.57 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 28.9 MB in the end (delta: -1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 56.40 ms. Allocated memory is still 50.3 MB. Free memory was 28.9 MB in the beginning and 26.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 150 SizeOfPredicates, 5 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 5 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...