./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.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-simp3.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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd .................................................................................................................................................................................................................................... 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-simp3.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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ................................................................................................................................................................................................................................................................................. 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 14:09:48,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:09:48,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:09:48,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:09:48,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:09:48,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:09:48,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:09:48,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:09:48,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:09:48,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:09:48,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:09:48,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:09:48,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:09:48,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:09:48,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:09:48,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:09:48,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:09:48,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:09:49,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:09:49,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:09:49,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:09:49,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:09:49,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:09:49,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:09:49,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:09:49,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:09:49,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:09:49,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:09:49,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:09:49,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:09:49,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:09:49,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:09:49,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:09:49,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:09:49,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:09:49,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:09:49,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:09:49,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:09:49,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:09:49,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:09:49,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:09:49,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:09:49,072 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:09:49,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:09:49,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:09:49,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:09:49,074 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:09:49,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:09:49,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:09:49,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:09:49,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:09:49,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:09:49,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:09:49,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:09:49,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:09:49,077 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:09:49,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:09:49,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:09:49,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:09:49,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:09:49,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:09:49,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:09:49,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:09:49,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:09:49,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:09:49,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:09:49,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:09:49,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:09:49,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:09:49,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:09:49,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:09:49,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-12-02 14:09:49,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:09:49,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:09:49,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:09:49,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:09:49,474 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:09:49,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-12-02 14:09:49,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04eb3dace/b8dad9f7d73343e488f81d194c6bdda8/FLAG367c8eb09 [2020-12-02 14:09:50,136 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:09:50,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-12-02 14:09:50,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04eb3dace/b8dad9f7d73343e488f81d194c6bdda8/FLAG367c8eb09 [2020-12-02 14:09:50,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04eb3dace/b8dad9f7d73343e488f81d194c6bdda8 [2020-12-02 14:09:50,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:09:50,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:09:50,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:50,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:09:50,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:09:50,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae05dbc 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 14:09:50,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:50" (1/1) ... [2020-12-02 14:09:50,592 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:09:50,645 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:09:50,862 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-simp3.c[358,371] [2020-12-02 14:09:50,868 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:50,884 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:09:50,901 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-simp3.c[358,371] [2020-12-02 14:09:50,902 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:50,919 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:09:50,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:50 WrapperNode [2020-12-02 14:09:50,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:50,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:50,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:09:50,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:09:50,934 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 14:09:50,943 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 14:09:50,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:50,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:09:50,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:09:50,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:09:50,973 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 14:09:50,974 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 14:09:50,976 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 14:09:50,976 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 14:09:50,981 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 14:09:50,985 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 14:09:50,987 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 14:09:50,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:09:50,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:09:50,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:09:50,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:09:50,998 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 14:09:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:09:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:09:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 14:09:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:09:51,261 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:09:51,262 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 14:09:51,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:51 BoogieIcfgContainer [2020-12-02 14:09:51,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:09:51,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:09:51,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:09:51,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:09:51,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:09:50" (1/3) ... [2020-12-02 14:09:51,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564c0fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:51, skipping insertion in model container [2020-12-02 14:09:51,271 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 14:09:51,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564c0fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:51, skipping insertion in model container [2020-12-02 14:09:51,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:51" (3/3) ... [2020-12-02 14:09:51,273 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-12-02 14:09:51,289 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:09:51,293 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:09:51,307 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:09:51,340 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:09:51,340 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:09:51,341 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:09:51,341 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:09:51,341 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:09:51,341 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:09:51,342 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:09:51,342 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:09:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-02 14:09:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:09:51,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:09:51,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:09:51,364 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:09:51,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:09:51,372 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-02 14:09:51,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:09:51,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241391607] [2020-12-02 14:09:51,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:09:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:09:51,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:09:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:09:51,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:09:51,601 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 14:09:51,602 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 14:09:51,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 14:09:51,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:09:51 BoogieIcfgContainer [2020-12-02 14:09:51,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:09:51,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:09:51,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:09:51,626 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:09:51,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:51" (3/4) ... [2020-12-02 14:09:51,631 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 14:09:51,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:09:51,635 INFO L168 Benchmark]: Toolchain (without parser) took 1067.90 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 18.0 MB in the beginning and 28.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 831.8 kB. Max. memory is 16.1 GB. [2020-12-02 14:09:51,636 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory is still 24.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:51,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.17 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 17.8 MB in the beginning and 26.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:51,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 48.2 MB. Free memory was 26.4 MB in the beginning and 25.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:51,639 INFO L168 Benchmark]: Boogie Preprocessor took 30.47 ms. Allocated memory is still 48.2 MB. Free memory was 25.0 MB in the beginning and 24.1 MB in the end (delta: 858.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:51,640 INFO L168 Benchmark]: RCFGBuilder took 267.83 ms. Allocated memory is still 48.2 MB. Free memory was 24.1 MB in the beginning and 28.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-02 14:09:51,641 INFO L168 Benchmark]: TraceAbstraction took 358.85 ms. Allocated memory is still 48.2 MB. Free memory was 27.4 MB in the beginning and 28.2 MB in the end (delta: -771.5 kB). Peak memory consumption was 532.6 kB. Max. memory is 16.1 GB. [2020-12-02 14:09:51,642 INFO L168 Benchmark]: Witness Printer took 5.84 ms. Allocated memory is still 48.2 MB. Free memory was 28.2 MB in the beginning and 28.0 MB in the end (delta: 208.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:09:51,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory is still 24.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 351.17 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 17.8 MB in the beginning and 26.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 48.2 MB. Free memory was 26.4 MB in the beginning and 25.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.47 ms. Allocated memory is still 48.2 MB. Free memory was 25.0 MB in the beginning and 24.1 MB in the end (delta: 858.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 267.83 ms. Allocated memory is still 48.2 MB. Free memory was 24.1 MB in the beginning and 28.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 358.85 ms. Allocated memory is still 48.2 MB. Free memory was 27.4 MB in the beginning and 28.2 MB in the end (delta: -771.5 kB). Peak memory consumption was 532.6 kB. Max. memory is 16.1 GB. * Witness Printer took 5.84 ms. Allocated memory is still 48.2 MB. Free memory was 28.2 MB in the beginning and 28.0 MB in the end (delta: 208.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 8, overapproximation of to_int at line 10. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=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 14:09:54,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:09:54,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:09:54,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:09:54,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:09:54,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:09:54,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:09:54,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:09:54,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:09:54,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:09:54,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:09:54,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:09:54,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:09:54,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:09:54,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:09:54,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:09:54,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:09:54,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:09:54,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:09:54,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:09:54,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:09:54,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:09:54,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:09:54,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:09:54,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:09:54,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:09:54,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:09:54,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:09:54,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:09:54,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:09:54,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:09:54,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:09:54,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:09:54,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:09:54,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:09:54,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:09:54,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:09:54,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:09:54,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:09:54,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:09:54,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:09:54,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:09:54,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:09:54,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:09:54,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:09:54,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:09:54,327 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:09:54,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:09:54,328 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:09:54,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:09:54,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:09:54,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:09:54,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:09:54,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:09:54,330 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:09:54,330 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:09:54,330 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:09:54,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:09:54,331 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:09:54,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:09:54,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:09:54,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:09:54,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:09:54,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:09:54,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:09:54,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:09:54,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:09:54,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:09:54,334 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:09:54,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:09:54,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:09:54,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:09:54,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:09:54,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-12-02 14:09:54,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:09:54,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:09:54,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:09:54,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:09:54,846 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:09:54,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-12-02 14:09:54,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cc4deff/0d7274b880894fcba5e50609c4c1a778/FLAG694e0a885 [2020-12-02 14:09:55,479 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:09:55,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-12-02 14:09:55,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cc4deff/0d7274b880894fcba5e50609c4c1a778/FLAG694e0a885 [2020-12-02 14:09:55,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cc4deff/0d7274b880894fcba5e50609c4c1a778 [2020-12-02 14:09:55,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:09:55,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:09:55,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:55,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:09:55,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:09:55,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:55" (1/1) ... [2020-12-02 14:09:55,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af73d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:55, skipping insertion in model container [2020-12-02 14:09:55,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:09:55" (1/1) ... [2020-12-02 14:09:55,890 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:09:55,911 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:09:56,135 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-simp3.c[358,371] [2020-12-02 14:09:56,141 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:56,163 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:09:56,183 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-simp3.c[358,371] [2020-12-02 14:09:56,184 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:09:56,210 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:09:56,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56 WrapperNode [2020-12-02 14:09:56,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:09:56,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:56,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:09:56,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:09:56,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:09:56,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:09:56,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:09:56,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:09:56,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (1/1) ... [2020-12-02 14:09:56,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:09:56,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:09:56,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:09:56,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:09:56,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (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 14:09:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:09:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:09:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:09:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:09:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 14:09:56,672 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:09:56,672 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 14:09:56,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:56 BoogieIcfgContainer [2020-12-02 14:09:56,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:09:56,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:09:56,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:09:56,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:09:56,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:09:55" (1/3) ... [2020-12-02 14:09:56,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12fc3e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:56, skipping insertion in model container [2020-12-02 14:09:56,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:09:56" (2/3) ... [2020-12-02 14:09:56,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12fc3e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:09:56, skipping insertion in model container [2020-12-02 14:09:56,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:56" (3/3) ... [2020-12-02 14:09:56,683 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-12-02 14:09:56,705 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:09:56,708 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:09:56,720 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:09:56,746 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:09:56,747 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:09:56,747 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:09:56,747 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:09:56,748 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:09:56,748 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:09:56,748 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:09:56,748 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:09:56,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-02 14:09:56,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:09:56,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:09:56,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:09:56,767 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:09:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:09:56,772 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-02 14:09:56,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:09:56,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412502592] [2020-12-02 14:09:56,786 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 14:09:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:09:57,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 14:09:57,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:09:59,794 WARN L197 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-02 14:09:59,820 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 14:09:59,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:10:10,144 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 50 [2020-12-02 14:10:10,146 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 14:10:10,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412502592] [2020-12-02 14:10:10,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:10:10,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 14:10:10,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663202436] [2020-12-02 14:10:10,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 14:10:10,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:10:10,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 14:10:10,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=16, Unknown=3, NotChecked=0, Total=30 [2020-12-02 14:10:10,168 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 6 states. [2020-12-02 14:10:14,776 WARN L197 SmtUtils]: Spent 3.34 s on a formula simplification that was a NOOP. DAG size: 42 [2020-12-02 14:10:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:10:15,309 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-02 14:10:15,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:10:15,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-02 14:10:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:10:15,360 INFO L225 Difference]: With dead ends: 11 [2020-12-02 14:10:15,360 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 14:10:15,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=17, Invalid=22, Unknown=3, NotChecked=0, Total=42 [2020-12-02 14:10:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 14:10:15,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 14:10:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 14:10:15,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 14:10:15,383 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-02 14:10:15,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:10:15,383 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 14:10:15,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 14:10:15,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 14:10:15,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 14:10:15,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:10:15,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 14:10:15,594 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 14:10:15,594 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 14:10:15,595 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 14:10:15,595 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 14:10:15,595 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-12-02 14:10:15,595 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-12-02 14:10:15,595 INFO L262 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-12-02 14:10:15,595 INFO L262 CegarLoopResult]: For program point L5(lines 5 11) no Hoare annotation was computed. [2020-12-02 14:10:15,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:10:15 BoogieIcfgContainer [2020-12-02 14:10:15,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:10:15,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:10:15,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:10:15,601 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:10:15,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:09:56" (3/4) ... [2020-12-02 14:10:15,605 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 14:10:15,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-02 14:10:15,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 14:10:15,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-02 14:10:15,617 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:10:15,669 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 14:10:15,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:10:15,677 INFO L168 Benchmark]: Toolchain (without parser) took 19816.81 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.6 MB in the beginning and 27.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:15,679 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:15,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.11 ms. Allocated memory is still 41.9 MB. Free memory was 19.3 MB in the beginning and 20.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:15,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.89 ms. Allocated memory is still 41.9 MB. Free memory was 20.7 MB in the beginning and 19.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:15,682 INFO L168 Benchmark]: Boogie Preprocessor took 26.08 ms. Allocated memory is still 41.9 MB. Free memory was 19.2 MB in the beginning and 18.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:15,684 INFO L168 Benchmark]: RCFGBuilder took 377.97 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.1 MB in the beginning and 25.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:15,685 INFO L168 Benchmark]: TraceAbstraction took 18924.47 ms. Allocated memory is still 50.3 MB. Free memory was 24.6 MB in the beginning and 30.1 MB in the end (delta: -5.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:15,687 INFO L168 Benchmark]: Witness Printer took 69.12 ms. Allocated memory is still 50.3 MB. Free memory was 29.8 MB in the beginning and 27.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:15,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 355.11 ms. Allocated memory is still 41.9 MB. Free memory was 19.3 MB in the beginning and 20.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.89 ms. Allocated memory is still 41.9 MB. Free memory was 20.7 MB in the beginning and 19.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.08 ms. Allocated memory is still 41.9 MB. Free memory was 19.2 MB in the beginning and 18.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 377.97 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.1 MB in the beginning and 25.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18924.47 ms. Allocated memory is still 50.3 MB. Free memory was 24.6 MB in the beginning and 30.1 MB in the end (delta: -5.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 69.12 ms. Allocated memory is still 50.3 MB. Free memory was 29.8 MB in the beginning and 27.7 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: 10]: 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: 18.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1s 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, 0.3s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 606 SizeOfPredicates, 3 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 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...