./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/sine_1.i --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-cdfpl/sine_1.i -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 853868a88f6c6643cd6d627e66ad7d81e22e5804 ............................................................................................................................................................................................................................................................................ 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-cdfpl/sine_1.i -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 853868a88f6c6643cd6d627e66ad7d81e22e5804 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 18:21:15,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 18:21:15,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 18:21:15,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 18:21:15,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 18:21:15,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 18:21:15,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 18:21:15,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 18:21:16,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 18:21:16,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 18:21:16,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 18:21:16,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 18:21:16,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 18:21:16,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 18:21:16,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 18:21:16,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 18:21:16,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 18:21:16,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 18:21:16,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 18:21:16,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 18:21:16,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 18:21:16,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 18:21:16,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 18:21:16,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 18:21:16,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 18:21:16,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 18:21:16,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 18:21:16,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 18:21:16,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 18:21:16,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 18:21:16,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 18:21:16,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 18:21:16,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 18:21:16,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 18:21:16,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 18:21:16,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 18:21:16,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 18:21:16,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 18:21:16,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 18:21:16,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 18:21:16,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 18:21:16,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 18:21:16,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 18:21:16,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 18:21:16,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 18:21:16,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 18:21:16,135 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 18:21:16,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 18:21:16,136 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 18:21:16,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 18:21:16,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 18:21:16,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 18:21:16,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 18:21:16,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 18:21:16,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 18:21:16,139 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 18:21:16,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 18:21:16,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 18:21:16,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 18:21:16,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 18:21:16,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 18:21:16,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 18:21:16,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 18:21:16,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 18:21:16,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 18:21:16,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 18:21:16,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 18:21:16,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 18:21:16,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 18:21:16,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 18:21:16,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 18:21:16,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2020-12-02 18:21:16,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 18:21:16,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 18:21:16,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 18:21:16,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 18:21:16,655 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 18:21:16,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-02 18:21:16,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21dc1b44/e0fe7194dee5431d80e7c5dd6c2552a6/FLAGffbe5398c [2020-12-02 18:21:17,360 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 18:21:17,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-02 18:21:17,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21dc1b44/e0fe7194dee5431d80e7c5dd6c2552a6/FLAGffbe5398c [2020-12-02 18:21:17,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21dc1b44/e0fe7194dee5431d80e7c5dd6c2552a6 [2020-12-02 18:21:17,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 18:21:17,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 18:21:17,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 18:21:17,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 18:21:17,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 18:21:17,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:17" (1/1) ... [2020-12-02 18:21:17,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5540f31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:17, skipping insertion in model container [2020-12-02 18:21:17,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:17" (1/1) ... [2020-12-02 18:21:17,764 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 18:21:17,781 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 18:21:17,961 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-cdfpl/sine_1.i[1143,1156] [2020-12-02 18:21:17,966 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 18:21:17,976 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 18:21:17,996 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-cdfpl/sine_1.i[1143,1156] [2020-12-02 18:21:17,997 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 18:21:18,014 INFO L217 MainTranslator]: Completed translation [2020-12-02 18:21:18,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18 WrapperNode [2020-12-02 18:21:18,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 18:21:18,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 18:21:18,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 18:21:18,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 18:21:18,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 18:21:18,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 18:21:18,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 18:21:18,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 18:21:18,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (1/1) ... [2020-12-02 18:21:18,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 18:21:18,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 18:21:18,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 18:21:18,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 18:21:18,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (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 18:21:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 18:21:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 18:21:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 18:21:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 18:21:18,408 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 18:21:18,408 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 18:21:18,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:18 BoogieIcfgContainer [2020-12-02 18:21:18,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 18:21:18,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 18:21:18,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 18:21:18,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 18:21:18,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:21:17" (1/3) ... [2020-12-02 18:21:18,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a3e07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:18, skipping insertion in model container [2020-12-02 18:21:18,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:18" (2/3) ... [2020-12-02 18:21:18,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a3e07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:18, skipping insertion in model container [2020-12-02 18:21:18,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:18" (3/3) ... [2020-12-02 18:21:18,421 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2020-12-02 18:21:18,466 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 18:21:18,476 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 18:21:18,506 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 18:21:18,540 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 18:21:18,540 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 18:21:18,541 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 18:21:18,541 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 18:21:18,541 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 18:21:18,541 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 18:21:18,542 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 18:21:18,542 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 18:21:18,559 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-02 18:21:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-02 18:21:18,565 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 18:21:18,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-02 18:21:18,567 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 18:21:18,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 18:21:18,574 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2020-12-02 18:21:18,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 18:21:18,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872629493] [2020-12-02 18:21:18,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 18:21:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 18:21:18,763 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 18:21:18,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872629493] [2020-12-02 18:21:18,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 18:21:18,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 18:21:18,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197298246] [2020-12-02 18:21:18,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 18:21:18,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 18:21:18,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 18:21:18,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 18:21:18,799 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2020-12-02 18:21:18,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 18:21:18,819 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-02 18:21:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 18:21:18,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-02 18:21:18,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 18:21:18,832 INFO L225 Difference]: With dead ends: 19 [2020-12-02 18:21:18,832 INFO L226 Difference]: Without dead ends: 7 [2020-12-02 18:21:18,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 18:21:18,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-02 18:21:18,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-02 18:21:18,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-02 18:21:18,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-12-02 18:21:18,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2020-12-02 18:21:18,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 18:21:18,876 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-12-02 18:21:18,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 18:21:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-02 18:21:18,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-02 18:21:18,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 18:21:18,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-02 18:21:18,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 18:21:18,879 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 18:21:18,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 18:21:18,880 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2020-12-02 18:21:18,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 18:21:18,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269896076] [2020-12-02 18:21:18,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 18:21:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 18:21:18,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 18:21:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 18:21:18,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 18:21:18,961 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 18:21:18,962 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 18:21:18,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 18:21:18,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:21:18 BoogieIcfgContainer [2020-12-02 18:21:18,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 18:21:18,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 18:21:18,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 18:21:18,989 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 18:21:18,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:18" (3/4) ... [2020-12-02 18:21:18,994 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 18:21:18,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 18:21:18,997 INFO L168 Benchmark]: Toolchain (without parser) took 1253.69 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 26.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-02 18:21:18,999 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 37.7 MB. Free memory was 24.1 MB in the beginning and 24.0 MB in the end (delta: 32.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 18:21:19,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.73 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 32.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-12-02 18:21:19,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.45 ms. Allocated memory is still 52.4 MB. Free memory was 32.2 MB in the beginning and 30.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 18:21:19,002 INFO L168 Benchmark]: Boogie Preprocessor took 24.63 ms. Allocated memory is still 52.4 MB. Free memory was 30.8 MB in the beginning and 29.8 MB in the end (delta: 983.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 18:21:19,003 INFO L168 Benchmark]: RCFGBuilder took 331.52 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 32.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-12-02 18:21:19,004 INFO L168 Benchmark]: TraceAbstraction took 575.39 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 27.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-12-02 18:21:19,004 INFO L168 Benchmark]: Witness Printer took 6.28 ms. Allocated memory is still 52.4 MB. Free memory was 27.2 MB in the beginning and 26.7 MB in the end (delta: 462.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 18:21:19,009 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 37.7 MB. Free memory was 24.1 MB in the beginning and 24.0 MB in the end (delta: 32.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.73 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 32.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.45 ms. Allocated memory is still 52.4 MB. Free memory was 32.2 MB in the beginning and 30.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.63 ms. Allocated memory is still 52.4 MB. Free memory was 30.8 MB in the beginning and 29.8 MB in the end (delta: 983.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 331.52 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 32.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 575.39 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 27.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.28 ms. Allocated memory is still 52.4 MB. Free memory was 27.2 MB in the beginning and 26.7 MB in the end (delta: 462.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: 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 25, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 27, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 21. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 0.99 && result >= -0.99) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 18:21:21,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 18:21:21,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 18:21:21,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 18:21:21,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 18:21:21,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 18:21:21,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 18:21:21,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 18:21:21,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 18:21:21,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 18:21:21,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 18:21:21,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 18:21:21,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 18:21:21,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 18:21:21,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 18:21:21,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 18:21:21,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 18:21:21,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 18:21:21,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 18:21:21,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 18:21:21,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 18:21:21,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 18:21:21,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 18:21:21,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 18:21:21,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 18:21:21,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 18:21:21,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 18:21:21,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 18:21:21,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 18:21:21,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 18:21:21,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 18:21:21,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 18:21:21,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 18:21:21,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 18:21:21,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 18:21:21,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 18:21:21,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 18:21:21,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 18:21:21,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 18:21:21,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 18:21:21,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 18:21:21,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 18:21:21,922 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 18:21:21,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 18:21:21,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 18:21:21,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 18:21:21,928 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 18:21:21,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 18:21:21,929 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 18:21:21,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 18:21:21,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 18:21:21,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 18:21:21,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 18:21:21,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 18:21:21,932 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 18:21:21,932 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 18:21:21,932 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 18:21:21,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 18:21:21,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 18:21:21,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 18:21:21,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 18:21:21,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 18:21:21,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 18:21:21,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 18:21:21,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 18:21:21,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 18:21:21,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 18:21:21,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 18:21:21,936 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 18:21:21,936 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 18:21:21,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 18:21:21,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 18:21:21,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 18:21:21,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2020-12-02 18:21:22,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 18:21:22,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 18:21:22,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 18:21:22,512 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 18:21:22,513 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 18:21:22,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-02 18:21:22,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62f2d074/274e6d420cd8419eadacd09e0b3db866/FLAG3cab5470b [2020-12-02 18:21:23,278 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 18:21:23,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-02 18:21:23,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62f2d074/274e6d420cd8419eadacd09e0b3db866/FLAG3cab5470b [2020-12-02 18:21:23,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62f2d074/274e6d420cd8419eadacd09e0b3db866 [2020-12-02 18:21:23,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 18:21:23,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 18:21:23,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 18:21:23,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 18:21:23,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 18:21:23,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:23,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0f0628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23, skipping insertion in model container [2020-12-02 18:21:23,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:23,671 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 18:21:23,688 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 18:21:23,874 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-cdfpl/sine_1.i[1143,1156] [2020-12-02 18:21:23,879 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 18:21:23,897 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 18:21:23,922 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-cdfpl/sine_1.i[1143,1156] [2020-12-02 18:21:23,924 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 18:21:23,944 INFO L217 MainTranslator]: Completed translation [2020-12-02 18:21:23,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23 WrapperNode [2020-12-02 18:21:23,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 18:21:23,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 18:21:23,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 18:21:23,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 18:21:23,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:23,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:23,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 18:21:24,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 18:21:24,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 18:21:24,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 18:21:24,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:24,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:24,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:24,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:24,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:24,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:24,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (1/1) ... [2020-12-02 18:21:24,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 18:21:24,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 18:21:24,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 18:21:24,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 18:21:24,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (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 18:21:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 18:21:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 18:21:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 18:21:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 18:21:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 18:21:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 18:21:27,104 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 18:21:27,105 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 18:21:27,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:27 BoogieIcfgContainer [2020-12-02 18:21:27,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 18:21:27,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 18:21:27,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 18:21:27,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 18:21:27,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:21:23" (1/3) ... [2020-12-02 18:21:27,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1140407c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:27, skipping insertion in model container [2020-12-02 18:21:27,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:23" (2/3) ... [2020-12-02 18:21:27,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1140407c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:27, skipping insertion in model container [2020-12-02 18:21:27,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:27" (3/3) ... [2020-12-02 18:21:27,116 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2020-12-02 18:21:27,131 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 18:21:27,134 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 18:21:27,146 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 18:21:27,184 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 18:21:27,184 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 18:21:27,185 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 18:21:27,185 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 18:21:27,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 18:21:27,187 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 18:21:27,187 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 18:21:27,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 18:21:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-12-02 18:21:27,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 18:21:27,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 18:21:27,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 18:21:27,211 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 18:21:27,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 18:21:27,217 INFO L82 PathProgramCache]: Analyzing trace with hash -594068695, now seen corresponding path program 1 times [2020-12-02 18:21:27,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 18:21:27,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512250326] [2020-12-02 18:21:27,232 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 18:21:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 18:21:28,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 18:21:28,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 18:21:28,520 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 18:21:28,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 18:21:28,543 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 18:21:28,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512250326] [2020-12-02 18:21:28,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 18:21:28,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 18:21:28,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207540654] [2020-12-02 18:21:28,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 18:21:28,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 18:21:28,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 18:21:28,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 18:21:28,571 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-12-02 18:21:28,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 18:21:28,588 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2020-12-02 18:21:28,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 18:21:28,590 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-02 18:21:28,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 18:21:28,600 INFO L225 Difference]: With dead ends: 23 [2020-12-02 18:21:28,600 INFO L226 Difference]: Without dead ends: 10 [2020-12-02 18:21:28,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 18:21:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-02 18:21:28,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-02 18:21:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-02 18:21:28,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-12-02 18:21:28,635 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 9 [2020-12-02 18:21:28,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 18:21:28,635 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-12-02 18:21:28,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 18:21:28,636 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-12-02 18:21:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 18:21:28,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 18:21:28,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 18:21:28,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 18:21:28,851 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 18:21:28,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 18:21:28,854 INFO L82 PathProgramCache]: Analyzing trace with hash -592221653, now seen corresponding path program 1 times [2020-12-02 18:21:28,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 18:21:28,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945284785] [2020-12-02 18:21:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 18:21:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 18:21:31,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 18:22:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 18:22:03,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 18:22:03,395 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-02 18:22:03,395 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 18:22:03,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 18:22:03,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:22:03 BoogieIcfgContainer [2020-12-02 18:22:03,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 18:22:03,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 18:22:03,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 18:22:03,634 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 18:22:03,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:27" (3/4) ... [2020-12-02 18:22:03,638 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-02 18:22:03,690 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 18:22:03,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 18:22:03,693 INFO L168 Benchmark]: Toolchain (without parser) took 40041.85 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 35.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-12-02 18:22:03,694 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 18:22:03,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.55 ms. Allocated memory is still 50.3 MB. Free memory was 26.5 MB in the beginning and 26.6 MB in the end (delta: -108.2 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-12-02 18:22:03,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 24.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 18:22:03,697 INFO L168 Benchmark]: Boogie Preprocessor took 40.69 ms. Allocated memory is still 50.3 MB. Free memory was 24.8 MB in the beginning and 23.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 18:22:03,698 INFO L168 Benchmark]: RCFGBuilder took 3064.90 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 42.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-12-02 18:22:03,699 INFO L168 Benchmark]: TraceAbstraction took 36522.37 ms. Allocated memory is still 60.8 MB. Free memory was 41.7 MB in the beginning and 37.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 18:22:03,700 INFO L168 Benchmark]: Witness Printer took 57.63 ms. Allocated memory is still 60.8 MB. Free memory was 36.8 MB in the beginning and 35.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 18:22:03,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.55 ms. Allocated memory is still 50.3 MB. Free memory was 26.5 MB in the beginning and 26.6 MB in the end (delta: -108.2 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 24.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.69 ms. Allocated memory is still 50.3 MB. Free memory was 24.8 MB in the beginning and 23.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3064.90 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 42.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 36522.37 ms. Allocated memory is still 60.8 MB. Free memory was 41.7 MB in the beginning and 37.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 57.63 ms. Allocated memory is still 60.8 MB. Free memory was 36.8 MB in the beginning and 35.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L21] EXPR 1.57079632679f [L21] EXPR -1.57079632679f [L21] IN > -1.57079632679f && IN < 1.57079632679f [L21] EXPR 1.57079632679f [L21] IN > -1.57079632679f && IN < 1.57079632679f [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] EXPR x*x [L25] EXPR x*x*x [L25] EXPR 6.0f [L25] EXPR (x*x*x)/6.0f [L25] EXPR x - (x*x*x)/6.0f [L25] EXPR x*x [L25] EXPR x*x*x [L25] EXPR x*x*x*x [L25] EXPR x*x*x*x*x [L25] EXPR 120.0f [L25] EXPR (x*x*x*x*x)/120.0f [L25] EXPR x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f [L25] EXPR x*x [L25] EXPR x*x*x [L25] EXPR x*x*x*x [L25] EXPR x*x*x*x*x [L25] EXPR x*x*x*x*x*x [L25] EXPR x*x*x*x*x*x*x [L25] EXPR 5040.0f [L25] EXPR (x*x*x*x*x*x*x)/5040.0f [L25] EXPR x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] EXPR 0.99 [L27] EXPR result <= 0.99 && result >= -0.99 [L27] EXPR 0.99 [L27] EXPR -0.99 [L27] EXPR result <= 0.99 && result >= -0.99 [L27] COND TRUE !(result <= 0.99 && result >= -0.99) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 1 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 incorrect! Received shutdown request...