./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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/floats-cbmc-regression/float12.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 748862a4a10e7eb5031b0856b76be837613208b8 ..................................................................................................................................................................................................................................... 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 ../sv-benchmarks/c/floats-cbmc-regression/float12.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 748862a4a10e7eb5031b0856b76be837613208b8 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:57:04,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:04,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:04,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:04,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:04,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:04,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:04,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:04,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:04,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:04,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:04,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:04,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:04,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:04,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:04,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:04,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:04,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:04,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:04,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:04,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:04,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:04,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:04,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:04,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:04,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:04,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:04,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:04,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:04,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:04,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:04,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:04,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:04,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:04,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:04,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:04,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:04,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:04,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:04,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:04,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:04,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:57:04,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:04,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:04,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:04,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:04,868 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:04,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:04,869 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:04,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:57:04,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:04,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:04,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:04,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:04,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:04,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:04,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:04,871 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:04,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:04,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:04,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:04,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:04,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:04,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:04,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:04,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:04,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:04,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:57:04,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:57:04,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:04,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:04,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2020-10-24 21:57:05,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:05,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:05,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:05,337 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:05,338 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:05,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-24 21:57:05,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46131135/5d7be5fee95c45b7b76fd024cf2555b7/FLAG37bd7f0d8 [2020-10-24 21:57:06,121 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:06,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-24 21:57:06,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46131135/5d7be5fee95c45b7b76fd024cf2555b7/FLAG37bd7f0d8 [2020-10-24 21:57:06,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46131135/5d7be5fee95c45b7b76fd024cf2555b7 [2020-10-24 21:57:06,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:06,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:06,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:06,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:06,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:06,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c0bb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06, skipping insertion in model container [2020-10-24 21:57:06,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:06,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:06,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:06,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:57:06,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:06,800 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:57:06,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06 WrapperNode [2020-10-24 21:57:06,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:06,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:06,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:57:06,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:57:06,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:06,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:57:06,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:57:06,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:57:06,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (1/1) ... [2020-10-24 21:57:06,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:57:06,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:57:06,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:57:06,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:57:06,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (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 [2020-10-24 21:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:57:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:57:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 21:57:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:57:07,190 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:57:07,191 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 21:57:07,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:07 BoogieIcfgContainer [2020-10-24 21:57:07,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:57:07,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:57:07,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:57:07,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:57:07,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:57:06" (1/3) ... [2020-10-24 21:57:07,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5765c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:07, skipping insertion in model container [2020-10-24 21:57:07,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:06" (2/3) ... [2020-10-24 21:57:07,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5765c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:07, skipping insertion in model container [2020-10-24 21:57:07,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:07" (3/3) ... [2020-10-24 21:57:07,204 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2020-10-24 21:57:07,218 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:57:07,223 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 21:57:07,244 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 21:57:07,275 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:57:07,276 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:57:07,276 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:57:07,276 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:57:07,277 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:57:07,277 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:57:07,277 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:57:07,277 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:57:07,294 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 21:57:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 21:57:07,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:07,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 21:57:07,302 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:07,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:07,309 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2020-10-24 21:57:07,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 21:57:07,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822021165] [2020-10-24 21:57:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 21:57:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:57:07,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:57:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:57:07,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:57:07,488 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 21:57:07,489 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 21:57:07,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 21:57:07,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:57:07 BoogieIcfgContainer [2020-10-24 21:57:07,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:57:07,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:57:07,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:57:07,518 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:57:07,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:07" (3/4) ... [2020-10-24 21:57:07,524 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 21:57:07,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:57:07,527 INFO L168 Benchmark]: Toolchain (without parser) took 1036.32 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 19.3 MB in the beginning and 26.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:07,529 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory is still 26.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:07,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.83 ms. Allocated memory is still 41.9 MB. Free memory was 18.7 MB in the beginning and 18.8 MB in the end (delta: -141.0 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:07,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.58 ms. Allocated memory is still 41.9 MB. Free memory was 18.7 MB in the beginning and 17.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:07,532 INFO L168 Benchmark]: Boogie Preprocessor took 27.82 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 17.5 MB in the beginning and 37.1 MB in the end (delta: -19.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:07,533 INFO L168 Benchmark]: RCFGBuilder took 323.39 ms. Allocated memory is still 52.4 MB. Free memory was 37.0 MB in the beginning and 27.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:07,534 INFO L168 Benchmark]: TraceAbstraction took 321.86 ms. Allocated memory is still 52.4 MB. Free memory was 26.7 MB in the beginning and 27.1 MB in the end (delta: -404.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:07,535 INFO L168 Benchmark]: Witness Printer took 6.66 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 26.6 MB in the end (delta: 266.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:07,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory is still 26.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.83 ms. Allocated memory is still 41.9 MB. Free memory was 18.7 MB in the beginning and 18.8 MB in the end (delta: -141.0 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.58 ms. Allocated memory is still 41.9 MB. Free memory was 18.7 MB in the beginning and 17.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.82 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 17.5 MB in the beginning and 37.1 MB in the end (delta: -19.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 323.39 ms. Allocated memory is still 52.4 MB. Free memory was 37.0 MB in the beginning and 27.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 321.86 ms. Allocated memory is still 52.4 MB. Free memory was 26.7 MB in the beginning and 27.1 MB in the end (delta: -404.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.66 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 26.6 MB in the end (delta: 266.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L8] float f = __VERIFIER_nondet_float(); [L9] double d; [L10] unsigned char x = __VERIFIER_nondet_uchar(); [L12] d=f [L14] COND TRUE f==x [L15] COND TRUE !(d==x) [L3] __assert_fail("0", "float12.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=10occurred 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, 5 NumberOfCodeBlocks, 5 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-a4ecdab [2020-10-24 21:57:10,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:10,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:10,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:10,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:10,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:10,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:10,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:10,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:10,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:10,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:10,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:10,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:10,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:10,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:10,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:10,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:10,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:10,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:10,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:10,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:10,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:10,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:10,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:10,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:10,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:10,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:10,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:10,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:10,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:10,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:10,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:10,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:10,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:10,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:10,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:10,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:10,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:10,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:10,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:10,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:10,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:57:10,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:10,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:10,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:10,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:10,499 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:10,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:10,500 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:10,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:10,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:10,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:10,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:10,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:10,502 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:57:10,503 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:57:10,503 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:10,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:10,504 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:10,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:10,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:10,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:10,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:10,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:10,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:10,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:10,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:10,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:10,507 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:57:10,507 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:57:10,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:10,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:10,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:57:10,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2020-10-24 21:57:10,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:11,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:11,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:11,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:11,009 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:11,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-24 21:57:11,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b746fc09a/141e99c99cc943dc8f0ccef387f6d63b/FLAGdedf5774e [2020-10-24 21:57:11,806 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:11,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-24 21:57:11,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b746fc09a/141e99c99cc943dc8f0ccef387f6d63b/FLAGdedf5774e [2020-10-24 21:57:12,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b746fc09a/141e99c99cc943dc8f0ccef387f6d63b [2020-10-24 21:57:12,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:12,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:12,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:12,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:12,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:12,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ac3c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12, skipping insertion in model container [2020-10-24 21:57:12,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:12,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:12,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:12,426 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:57:12,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:12,462 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:57:12,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12 WrapperNode [2020-10-24 21:57:12,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:12,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:12,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:57:12,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:57:12,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:12,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:57:12,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:57:12,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:57:12,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (1/1) ... [2020-10-24 21:57:12,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:57:12,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:57:12,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:57:12,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:57:12,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (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 [2020-10-24 21:57:12,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:57:12,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:57:12,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:57:12,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:57:12,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:57:12,962 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 21:57:12,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:12 BoogieIcfgContainer [2020-10-24 21:57:12,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:57:12,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:57:12,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:57:12,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:57:12,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:57:12" (1/3) ... [2020-10-24 21:57:12,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33029d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:12, skipping insertion in model container [2020-10-24 21:57:12,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:12" (2/3) ... [2020-10-24 21:57:12,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33029d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:12, skipping insertion in model container [2020-10-24 21:57:12,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:12" (3/3) ... [2020-10-24 21:57:12,974 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2020-10-24 21:57:12,989 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:57:12,994 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 21:57:13,011 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 21:57:13,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:57:13,042 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:57:13,043 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:57:13,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:57:13,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:57:13,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:57:13,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:57:13,044 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:57:13,059 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 21:57:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 21:57:13,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:13,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 21:57:13,071 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:13,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:13,078 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2020-10-24 21:57:13,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:13,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971212655] [2020-10-24 21:57:13,093 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 [2020-10-24 21:57:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:13,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 21:57:13,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:13,602 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-10-24 21:57:14,145 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-10-24 21:57:14,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:14,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:16,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971212655] [2020-10-24 21:57:16,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:16,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 21:57:16,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787054308] [2020-10-24 21:57:16,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 21:57:16,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:16,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 21:57:16,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-24 21:57:16,176 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-24 21:57:20,329 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2020-10-24 21:57:20,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:20,725 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-24 21:57:20,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 21:57:20,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-24 21:57:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:20,745 INFO L225 Difference]: With dead ends: 16 [2020-10-24 21:57:20,745 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:57:20,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 21:57:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:57:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:57:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:57:20,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:57:20,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-10-24 21:57:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:20,779 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:57:20,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 21:57:20,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:57:20,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:57:20,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:57:20,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:57:21,002 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:57:21,003 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:57:21,003 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:57:21,003 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:57:21,003 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:21,003 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-24 21:57:21,004 INFO L274 CegarLoopResult]: For program point L14(lines 14 15) no Hoare annotation was computed. [2020-10-24 21:57:21,004 INFO L274 CegarLoopResult]: For program point L6(lines 6 16) no Hoare annotation was computed. [2020-10-24 21:57:21,004 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 21:57:21,004 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 21:57:21,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:57:21 BoogieIcfgContainer [2020-10-24 21:57:21,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:57:21,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:57:21,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:57:21,012 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:57:21,012 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:12" (3/4) ... [2020-10-24 21:57:21,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:57:21,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 21:57:21,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 21:57:21,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 21:57:21,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:57:21,076 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:57:21,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:57:21,079 INFO L168 Benchmark]: Toolchain (without parser) took 8913.73 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 16.9 MB in the beginning and 23.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:21,080 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 39.8 MB. Free memory was 21.4 MB in the beginning and 21.4 MB in the end (delta: 35.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:21,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.71 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 16.3 MB in the beginning and 24.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:21,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 23.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:21,091 INFO L168 Benchmark]: Boogie Preprocessor took 27.43 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 21.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:21,093 INFO L168 Benchmark]: RCFGBuilder took 430.05 ms. Allocated memory is still 48.2 MB. Free memory was 21.8 MB in the beginning and 23.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:21,094 INFO L168 Benchmark]: TraceAbstraction took 8045.00 ms. Allocated memory is still 48.2 MB. Free memory was 22.8 MB in the beginning and 25.5 MB in the end (delta: -2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:21,095 INFO L168 Benchmark]: Witness Printer took 64.85 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:21,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 39.8 MB. Free memory was 21.4 MB in the beginning and 21.4 MB in the end (delta: 35.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.71 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 16.3 MB in the beginning and 24.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 23.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.43 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 21.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 430.05 ms. Allocated memory is still 48.2 MB. Free memory was 21.8 MB in the beginning and 23.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8045.00 ms. Allocated memory is still 48.2 MB. Free memory was 22.8 MB in the beginning and 25.5 MB in the end (delta: -2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 64.85 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.1 MB in the end (delta: 2.1 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2.9s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 156 SizeOfPredicates, 6 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 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...