./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer --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 8f53d9ed7fe14462ecadf09af148bc11769a4a61 .......................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer --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 8f53d9ed7fe14462ecadf09af148bc11769a4a61 ....................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-29 22:49:19,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:49:19,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:49:19,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:49:19,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:49:19,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:49:19,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:49:19,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:49:19,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:49:19,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:49:19,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:49:19,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:49:19,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:49:19,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:49:19,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:49:19,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:49:19,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:49:19,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:49:19,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:49:19,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:49:19,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:49:19,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:49:19,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:49:19,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:49:19,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:49:19,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:49:19,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:49:19,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:49:19,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:49:19,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:49:19,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:49:19,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:49:19,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:49:19,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:49:19,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:49:19,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:49:19,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:49:19,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:49:19,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:49:19,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:49:19,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:49:19,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:49:19,527 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:49:19,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:49:19,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:49:19,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:49:19,533 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:49:19,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:49:19,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:49:19,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:49:19,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:49:19,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:49:19,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:49:19,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:49:19,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:49:19,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:49:19,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:49:19,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:49:19,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:49:19,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:49:19,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:49:19,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:49:19,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:49:19,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:49:19,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:49:19,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:49:19,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:49:19,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:49:19,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:49:19,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:49:19,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:49:19,540 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:/tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2020-11-29 22:49:19,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:49:19,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:49:19,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:49:19,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:49:19,840 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:49:19,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-11-29 22:49:19,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/f2ae828ad/02b0cbfb8cf248dd901af31ce4083d59/FLAG8bc67244a [2020-11-29 22:49:20,383 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:49:20,384 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-11-29 22:49:20,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/f2ae828ad/02b0cbfb8cf248dd901af31ce4083d59/FLAG8bc67244a [2020-11-29 22:49:20,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/f2ae828ad/02b0cbfb8cf248dd901af31ce4083d59 [2020-11-29 22:49:20,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:49:20,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:49:20,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:20,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:49:20,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:49:20,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:20" (1/1) ... [2020-11-29 22:49:20,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398bf869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:20, skipping insertion in model container [2020-11-29 22:49:20,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:20" (1/1) ... [2020-11-29 22:49:20,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:49:20,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:49:21,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:21,043 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:49:21,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:21,089 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:49:21,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21 WrapperNode [2020-11-29 22:49:21,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:21,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:21,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:49:21,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:49:21,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:21,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:49:21,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:49:21,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:49:21,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... [2020-11-29 22:49:21,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:49:21,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:49:21,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:49:21,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:49:21,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/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 [2020-11-29 22:49:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:49:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:49:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:49:21,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:49:21,421 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:49:21,421 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 22:49:21,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:21 BoogieIcfgContainer [2020-11-29 22:49:21,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:49:21,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:49:21,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:49:21,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:49:21,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:49:20" (1/3) ... [2020-11-29 22:49:21,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f16a666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:21, skipping insertion in model container [2020-11-29 22:49:21,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:21" (2/3) ... [2020-11-29 22:49:21,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f16a666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:21, skipping insertion in model container [2020-11-29 22:49:21,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:21" (3/3) ... [2020-11-29 22:49:21,459 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2020-11-29 22:49:21,470 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:49:21,473 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:49:21,494 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:49:21,550 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:49:21,550 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:49:21,550 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:49:21,550 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:49:21,551 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:49:21,551 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:49:21,563 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:49:21,563 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:49:21,575 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-29 22:49:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:49:21,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:21,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:21,585 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:21,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:21,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-29 22:49:21,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:49:21,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207087403] [2020-11-29 22:49:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:49:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:49:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:49:21,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207087403] [2020-11-29 22:49:21,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:49:21,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:49:21,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357859507] [2020-11-29 22:49:21,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:49:21,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:49:21,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:49:21,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:49:21,797 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-11-29 22:49:21,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:49:21,812 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-29 22:49:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:49:21,814 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 22:49:21,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:49:21,825 INFO L225 Difference]: With dead ends: 21 [2020-11-29 22:49:21,825 INFO L226 Difference]: Without dead ends: 8 [2020-11-29 22:49:21,830 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 [2020-11-29 22:49:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-29 22:49:21,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-29 22:49:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 22:49:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-11-29 22:49:21,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-11-29 22:49:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:49:21,885 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-11-29 22:49:21,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:49:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-29 22:49:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:49:21,887 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:21,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:21,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:49:21,888 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:21,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:21,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-29 22:49:21,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:49:21,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872746496] [2020-11-29 22:49:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:49:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:49:21,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:49:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:49:21,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:49:22,013 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:49:22,014 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:49:22,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:49:22,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:49:22 BoogieIcfgContainer [2020-11-29 22:49:22,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:49:22,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:49:22,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:49:22,044 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:49:22,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:21" (3/4) ... [2020-11-29 22:49:22,048 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:49:22,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:49:22,052 INFO L168 Benchmark]: Toolchain (without parser) took 1246.33 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 78.6 MB in the beginning and 105.7 MB in the end (delta: -27.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:49:22,053 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:49:22,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.88 ms. Allocated memory is still 107.0 MB. Free memory was 78.3 MB in the beginning and 83.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:22,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:22,057 INFO L168 Benchmark]: Boogie Preprocessor took 32.66 ms. Allocated memory is still 107.0 MB. Free memory was 82.3 MB in the beginning and 81.4 MB in the end (delta: 842.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:49:22,058 INFO L168 Benchmark]: RCFGBuilder took 260.16 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 71.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:22,060 INFO L168 Benchmark]: TraceAbstraction took 618.54 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.7 MB in the beginning and 106.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:22,062 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 130.0 MB. Free memory was 106.3 MB in the beginning and 105.7 MB in the end (delta: 593.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:22,073 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 107.0 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.88 ms. Allocated memory is still 107.0 MB. Free memory was 78.3 MB in the beginning and 83.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.66 ms. Allocated memory is still 107.0 MB. Free memory was 82.3 MB in the beginning and 81.4 MB in the end (delta: 842.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 260.16 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 71.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 618.54 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.7 MB in the beginning and 106.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.09 ms. Allocated memory is still 130.0 MB. Free memory was 106.3 MB in the beginning and 105.7 MB in the end (delta: 593.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. 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 <= 1.001f && result >= -1.001f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_3.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 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: 11 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=12occurred 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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-a4ecdab [2020-11-29 22:49:24,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:49:24,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:49:24,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:49:24,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:49:24,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:49:24,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:49:24,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:49:24,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:49:24,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:49:24,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:49:24,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:49:24,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:49:24,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:49:24,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:49:24,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:49:24,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:49:24,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:49:24,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:49:24,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:49:24,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:49:24,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:49:24,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:49:24,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:49:24,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:49:24,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:49:24,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:49:24,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:49:24,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:49:24,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:49:24,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:49:24,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:49:24,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:49:24,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:49:24,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:49:24,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:49:24,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:49:24,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:49:24,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:49:24,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:49:24,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:49:24,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 22:49:24,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:49:24,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:49:24,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:49:24,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:49:24,750 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:49:24,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:49:24,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:49:24,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:49:24,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:49:24,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:49:24,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:49:24,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:49:24,753 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 22:49:24,753 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 22:49:24,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:49:24,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:49:24,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:49:24,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:49:24,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:49:24,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:49:24,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:49:24,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:49:24,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:49:24,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:49:24,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:49:24,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:49:24,757 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 22:49:24,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 22:49:24,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:49:24,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:49:24,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:49:24,758 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:/tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2020-11-29 22:49:25,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:49:25,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:49:25,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:49:25,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:49:25,200 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:49:25,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-11-29 22:49:25,272 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/e25b43907/f302bc1529154a6880d65398899e40ea/FLAGb56b39cb6 [2020-11-29 22:49:25,807 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:49:25,808 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-11-29 22:49:25,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/e25b43907/f302bc1529154a6880d65398899e40ea/FLAGb56b39cb6 [2020-11-29 22:49:26,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/data/e25b43907/f302bc1529154a6880d65398899e40ea [2020-11-29 22:49:26,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:49:26,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:49:26,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:26,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:49:26,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:49:26,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bfb10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26, skipping insertion in model container [2020-11-29 22:49:26,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:49:26,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:49:26,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:26,408 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:49:26,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:26,490 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:49:26,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26 WrapperNode [2020-11-29 22:49:26,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:26,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:26,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:49:26,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:49:26,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:26,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:49:26,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:49:26,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:49:26,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... [2020-11-29 22:49:26,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:49:26,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:49:26,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:49:26,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:49:26,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/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 [2020-11-29 22:49:26,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 22:49:26,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:49:26,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:49:26,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:49:29,755 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:49:29,755 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 22:49:29,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:29 BoogieIcfgContainer [2020-11-29 22:49:29,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:49:29,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:49:29,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:49:29,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:49:29,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:49:26" (1/3) ... [2020-11-29 22:49:29,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698d256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:29, skipping insertion in model container [2020-11-29 22:49:29,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:26" (2/3) ... [2020-11-29 22:49:29,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698d256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:29, skipping insertion in model container [2020-11-29 22:49:29,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:29" (3/3) ... [2020-11-29 22:49:29,765 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2020-11-29 22:49:29,776 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:49:29,779 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:49:29,800 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:49:29,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:49:29,824 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:49:29,824 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:49:29,824 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:49:29,824 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:49:29,824 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:49:29,825 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:49:29,825 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:49:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-29 22:49:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:49:29,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:29,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:29,842 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-29 22:49:29,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:49:29,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71919803] [2020-11-29 22:49:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/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 [2020-11-29 22:49:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:49:30,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 22:49:30,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:49:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:49:30,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:49:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:49:30,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71919803] [2020-11-29 22:49:30,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:49:30,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 22:49:30,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609927376] [2020-11-29 22:49:30,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:49:30,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:49:30,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:49:30,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:49:30,498 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-11-29 22:49:30,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:49:30,512 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-29 22:49:30,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:49:30,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 22:49:30,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:49:30,521 INFO L225 Difference]: With dead ends: 21 [2020-11-29 22:49:30,522 INFO L226 Difference]: Without dead ends: 8 [2020-11-29 22:49:30,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:49:30,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-29 22:49:30,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-29 22:49:30,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 22:49:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-11-29 22:49:30,550 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-11-29 22:49:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:49:30,551 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-11-29 22:49:30,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:49:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-29 22:49:30,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:49:30,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:30,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:30,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 22:49:30,757 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:30,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:30,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-29 22:49:30,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:49:30,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566829988] [2020-11-29 22:49:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/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 [2020-11-29 22:49:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:49:34,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:15,678 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:15,898 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 22:54:15,898 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:54:16,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 22:54:16,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:54:16 BoogieIcfgContainer [2020-11-29 22:54:16,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:54:16,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:54:16,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:54:16,121 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:54:16,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:29" (3/4) ... [2020-11-29 22:54:16,123 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:54:16,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6891191c-f79f-435d-9d26-cbc1f3dfa2b5/bin/uautomizer/witness.graphml [2020-11-29 22:54:16,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:54:16,173 INFO L168 Benchmark]: Toolchain (without parser) took 289987.29 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 35.0 MB in the beginning and 51.7 MB in the end (delta: -16.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:54:16,174 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:54:16,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.63 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:16,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.90 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 37.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:54:16,176 INFO L168 Benchmark]: Boogie Preprocessor took 40.38 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 36.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:54:16,178 INFO L168 Benchmark]: RCFGBuilder took 3171.84 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 26.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:16,178 INFO L168 Benchmark]: TraceAbstraction took 286360.62 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 25.5 MB in the beginning and 53.6 MB in the end (delta: -28.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:16,181 INFO L168 Benchmark]: Witness Printer took 45.53 ms. Allocated memory is still 73.4 MB. Free memory was 53.6 MB in the beginning and 51.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:16,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.63 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.90 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 37.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.38 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 36.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3171.84 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 26.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 286360.62 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 25.5 MB in the beginning and 53.6 MB in the end (delta: -28.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Witness Printer took 45.53 ms. Allocated memory is still 73.4 MB. Free memory was 53.6 MB in the beginning and 51.7 MB in the end (delta: 1.9 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: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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 <= 1.001f && result >= -1.001f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_3.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 286.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 4.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 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...