./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85e5b86abce931d95696fba33e25199d528f9f0e ................................................................................................................................................................................................................................................................................................................................................ 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85e5b86abce931d95696fba33e25199d528f9f0e ...................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 00:33:04,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:33:04,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:33:04,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:33:04,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:33:04,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:33:04,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:33:04,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:33:04,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:33:04,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:33:04,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:33:04,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:33:04,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:33:04,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:33:04,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:33:04,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:33:04,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:33:04,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:33:04,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:33:04,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:33:04,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:33:04,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:33:04,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:33:04,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:33:04,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:33:04,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:33:04,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:33:04,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:33:04,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:33:04,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:33:04,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:33:04,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:33:04,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:33:04,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:33:04,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:33:04,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:33:04,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:33:04,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:33:04,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:33:04,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:33:04,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:33:04,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:33:04,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:33:04,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:33:04,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:33:04,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:33:04,753 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:33:04,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:33:04,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:33:04,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:33:04,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:33:04,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:33:04,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:33:04,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:33:04,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:33:04,755 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:33:04,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:33:04,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:33:04,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:33:04,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:33:04,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:33:04,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:33:04,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:33:04,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:04,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:33:04,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:33:04,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:33:04,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:33:04,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:33:04,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:33:04,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:33:04,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 85e5b86abce931d95696fba33e25199d528f9f0e [2020-10-20 00:33:04,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:33:04,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:33:05,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:33:05,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:33:05,007 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:33:05,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-20 00:33:05,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d913f9210/257d606ffd07481e84e78bf336508c04/FLAG441b0345a [2020-10-20 00:33:05,502 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:33:05,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-20 00:33:05,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d913f9210/257d606ffd07481e84e78bf336508c04/FLAG441b0345a [2020-10-20 00:33:05,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d913f9210/257d606ffd07481e84e78bf336508c04 [2020-10-20 00:33:05,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:33:05,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:33:05,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:05,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:33:05,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:33:05,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:05" (1/1) ... [2020-10-20 00:33:05,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68acdfa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:05, skipping insertion in model container [2020-10-20 00:33:05,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:05" (1/1) ... [2020-10-20 00:33:05,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:33:05,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:33:06,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:06,345 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:33:06,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:06,443 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:33:06,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06 WrapperNode [2020-10-20 00:33:06,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:06,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:06,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:33:06,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:33:06,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:06,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:33:06,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:33:06,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:33:06,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... [2020-10-20 00:33:06,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:33:06,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:33:06,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:33:06,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:33:06,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:33:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:33:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:33:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:33:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:33:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:33:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:33:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:33:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:33:07,181 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:33:07,182 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-10-20 00:33:07,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:07 BoogieIcfgContainer [2020-10-20 00:33:07,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:33:07,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:33:07,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:33:07,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:33:07,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:33:05" (1/3) ... [2020-10-20 00:33:07,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fcdd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:07, skipping insertion in model container [2020-10-20 00:33:07,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:06" (2/3) ... [2020-10-20 00:33:07,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fcdd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:07, skipping insertion in model container [2020-10-20 00:33:07,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:07" (3/3) ... [2020-10-20 00:33:07,204 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-10-20 00:33:07,220 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:33:07,229 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:33:07,242 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:33:07,268 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:33:07,268 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:33:07,269 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:33:07,269 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:33:07,269 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:33:07,269 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:33:07,269 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:33:07,270 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:33:07,284 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-20 00:33:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 00:33:07,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:07,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:07,292 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:07,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:07,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2020-10-20 00:33:07,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:33:07,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915637402] [2020-10-20 00:33:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:33:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:07,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:07,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915637402] [2020-10-20 00:33:07,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:07,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:33:07,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225943548] [2020-10-20 00:33:07,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:33:07,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:33:07,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:33:07,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:33:07,471 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-10-20 00:33:07,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:07,494 INFO L93 Difference]: Finished difference Result 87 states and 139 transitions. [2020-10-20 00:33:07,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:33:07,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-20 00:33:07,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:07,506 INFO L225 Difference]: With dead ends: 87 [2020-10-20 00:33:07,507 INFO L226 Difference]: Without dead ends: 41 [2020-10-20 00:33:07,510 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 [2020-10-20 00:33:07,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-20 00:33:07,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-20 00:33:07,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 00:33:07,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-10-20 00:33:07,554 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2020-10-20 00:33:07,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:07,554 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-10-20 00:33:07,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:33:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-10-20 00:33:07,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:33:07,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:07,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:07,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:33:07,556 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:07,557 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2020-10-20 00:33:07,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:33:07,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47559657] [2020-10-20 00:33:07,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:33:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:07,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47559657] [2020-10-20 00:33:07,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:07,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 00:33:07,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653278558] [2020-10-20 00:33:07,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 00:33:07,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:33:07,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 00:33:07,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:33:07,719 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2020-10-20 00:33:07,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:07,759 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-10-20 00:33:07,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:33:07,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-20 00:33:07,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:07,761 INFO L225 Difference]: With dead ends: 44 [2020-10-20 00:33:07,761 INFO L226 Difference]: Without dead ends: 41 [2020-10-20 00:33:07,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:33:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-20 00:33:07,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-20 00:33:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 00:33:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-20 00:33:07,770 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2020-10-20 00:33:07,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:07,771 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-20 00:33:07,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 00:33:07,771 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-20 00:33:07,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 00:33:07,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:07,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:07,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:33:07,773 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:07,774 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2020-10-20 00:33:07,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:33:07,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524737418] [2020-10-20 00:33:07,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:33:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:07,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:07,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:07,942 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:33:07,943 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:33:07,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 00:33:07,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:33:07 BoogieIcfgContainer [2020-10-20 00:33:07,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:33:07,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:33:07,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:33:07,990 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:33:07,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:07" (3/4) ... [2020-10-20 00:33:07,995 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:33:07,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:33:07,999 INFO L168 Benchmark]: Toolchain (without parser) took 2101.07 ms. Allocated memory was 35.7 MB in the beginning and 50.3 MB in the end (delta: 14.7 MB). Free memory was 15.3 MB in the beginning and 24.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,000 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 33.6 MB. Free memory was 9.8 MB in the beginning and 9.7 MB in the end (delta: 62.9 kB). Peak memory consumption was 62.9 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.49 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 14.4 MB in the beginning and 23.1 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.40 ms. Allocated memory is still 44.6 MB. Free memory was 23.1 MB in the beginning and 20.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,003 INFO L168 Benchmark]: Boogie Preprocessor took 40.25 ms. Allocated memory is still 44.6 MB. Free memory was 20.6 MB in the beginning and 18.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,004 INFO L168 Benchmark]: RCFGBuilder took 628.98 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 18.3 MB in the beginning and 12.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,005 INFO L168 Benchmark]: TraceAbstraction took 804.17 ms. Allocated memory was 46.1 MB in the beginning and 50.3 MB in the end (delta: 4.2 MB). Free memory was 12.4 MB in the beginning and 25.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,006 INFO L168 Benchmark]: Witness Printer took 6.01 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 24.8 MB in the end (delta: 721.9 kB). Peak memory consumption was 721.9 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:08,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 33.6 MB. Free memory was 9.8 MB in the beginning and 9.7 MB in the end (delta: 62.9 kB). Peak memory consumption was 62.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 541.49 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 14.4 MB in the beginning and 23.1 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 69.40 ms. Allocated memory is still 44.6 MB. Free memory was 23.1 MB in the beginning and 20.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 40.25 ms. Allocated memory is still 44.6 MB. Free memory was 20.6 MB in the beginning and 18.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 628.98 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 18.3 MB in the beginning and 12.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 804.17 ms. Allocated memory was 46.1 MB in the beginning and 50.3 MB in the end (delta: 4.2 MB). Free memory was 12.4 MB in the beginning and 25.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * Witness Printer took 6.01 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 24.8 MB in the end (delta: 721.9 kB). Peak memory consumption was 721.9 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 118, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [one_modf=1] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L31] COND TRUE j0 < 20 VAL [one_modf=1] [L32] COND TRUE j0 < 0 VAL [one_modf=1] [L34] ieee_double_shape_type iw_u; [L35] iw_u.parts.msw = (i0 & 0x80000000) [L36] iw_u.parts.lsw = (0) [L37] EXPR iw_u.value [L37] (*iptr) = iw_u.value [L39] return x; VAL [one_modf=1] [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) [L17] return x != x; VAL [one_modf=1] [L123] isnan_double(iptr) && !isnan_double(res) [L17] return x != x; VAL [one_modf=1] [L123] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1210.c", 3, "reach_error") VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:33:10,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:33:10,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:33:10,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:33:10,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:33:10,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:33:10,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:33:10,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:33:10,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:33:10,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:33:10,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:33:10,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:33:10,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:33:10,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:33:10,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:33:10,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:33:10,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:33:10,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:33:10,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:33:10,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:33:10,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:33:10,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:33:10,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:33:10,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:33:10,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:33:10,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:33:10,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:33:10,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:33:10,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:33:10,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:33:10,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:33:10,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:33:10,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:33:10,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:33:10,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:33:10,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:33:10,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:33:10,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:33:10,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:33:10,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:33:10,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:33:10,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:33:10,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:33:10,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:33:10,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:33:10,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:33:10,223 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:33:10,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:33:10,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:33:10,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:33:10,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:33:10,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:33:10,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:33:10,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:33:10,224 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:33:10,224 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:33:10,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:33:10,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:33:10,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:33:10,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:33:10,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:33:10,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:33:10,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:33:10,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:33:10,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:10,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:33:10,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:33:10,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:33:10,228 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:33:10,229 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:33:10,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:33:10,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:33:10,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:33:10,229 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 85e5b86abce931d95696fba33e25199d528f9f0e [2020-10-20 00:33:10,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:33:10,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:33:10,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:33:10,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:33:10,461 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:33:10,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-20 00:33:10,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4835ceaa9/32d5e9ca029e49ffa75aec50b3e53b23/FLAG8009d604f [2020-10-20 00:33:11,103 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:33:11,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-20 00:33:11,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4835ceaa9/32d5e9ca029e49ffa75aec50b3e53b23/FLAG8009d604f [2020-10-20 00:33:11,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4835ceaa9/32d5e9ca029e49ffa75aec50b3e53b23 [2020-10-20 00:33:11,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:33:11,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:33:11,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:11,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:33:11,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:33:11,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:11,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebb630b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11, skipping insertion in model container [2020-10-20 00:33:11,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:11,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:33:11,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:33:11,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:11,860 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:33:11,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:11,934 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:33:11,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11 WrapperNode [2020-10-20 00:33:11,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:11,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:11,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:33:11,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:33:11,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:11,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:11,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:11,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:33:11,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:33:11,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:33:12,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:12,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:12,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:12,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:12,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:12,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:12,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... [2020-10-20 00:33:12,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:33:12,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:33:12,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:33:12,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:33:12,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:33:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:33:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:33:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:33:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:33:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:33:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:33:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:33:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:33:13,406 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:33:13,407 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-10-20 00:33:13,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:13 BoogieIcfgContainer [2020-10-20 00:33:13,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:33:13,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:33:13,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:33:13,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:33:13,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:33:11" (1/3) ... [2020-10-20 00:33:13,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16152e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:13, skipping insertion in model container [2020-10-20 00:33:13,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:11" (2/3) ... [2020-10-20 00:33:13,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16152e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:13, skipping insertion in model container [2020-10-20 00:33:13,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:13" (3/3) ... [2020-10-20 00:33:13,419 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-10-20 00:33:13,431 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:33:13,440 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:33:13,455 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:33:13,481 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:33:13,481 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:33:13,481 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:33:13,481 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:33:13,482 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:33:13,482 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:33:13,482 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:33:13,483 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:33:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-20 00:33:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 00:33:13,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:13,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:13,509 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:13,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:13,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2020-10-20 00:33:13,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:13,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616447262] [2020-10-20 00:33:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:33:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:13,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:33:13,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:33:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:13,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:13,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:13,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616447262] [2020-10-20 00:33:13,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:13,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:33:13,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971801052] [2020-10-20 00:33:13,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:33:13,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:13,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:33:13,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:33:13,733 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-10-20 00:33:13,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:13,757 INFO L93 Difference]: Finished difference Result 87 states and 139 transitions. [2020-10-20 00:33:13,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:33:13,759 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-20 00:33:13,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:13,771 INFO L225 Difference]: With dead ends: 87 [2020-10-20 00:33:13,771 INFO L226 Difference]: Without dead ends: 41 [2020-10-20 00:33:13,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:33:13,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-20 00:33:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-20 00:33:13,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 00:33:13,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-10-20 00:33:13,819 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2020-10-20 00:33:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:13,820 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-10-20 00:33:13,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:33:13,820 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-10-20 00:33:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:33:13,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:13,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:14,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:33:14,036 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2020-10-20 00:33:14,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:14,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817067129] [2020-10-20 00:33:14,043 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 [2020-10-20 00:33:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:14,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:33:14,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:33:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:14,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:14,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817067129] [2020-10-20 00:33:14,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:14,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:33:14,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012037950] [2020-10-20 00:33:14,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:33:14,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:14,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:33:14,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:33:14,562 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2020-10-20 00:33:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:15,441 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-20 00:33:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:33:15,443 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-20 00:33:15,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:15,444 INFO L225 Difference]: With dead ends: 48 [2020-10-20 00:33:15,444 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 00:33:15,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-20 00:33:15,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 00:33:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 00:33:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 00:33:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-20 00:33:15,451 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2020-10-20 00:33:15,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:15,452 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-20 00:33:15,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:33:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-20 00:33:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 00:33:15,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:15,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:15,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:33:15,664 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:15,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:15,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2020-10-20 00:33:15,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:15,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134254057] [2020-10-20 00:33:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 00:33:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:16,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 00:33:16,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:33:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:16,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:16,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134254057] [2020-10-20 00:33:16,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:16,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 00:33:16,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911386193] [2020-10-20 00:33:16,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 00:33:16,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:16,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 00:33:16,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:33:16,027 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2020-10-20 00:33:16,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:16,058 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-20 00:33:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:33:16,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 00:33:16,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:16,060 INFO L225 Difference]: With dead ends: 22 [2020-10-20 00:33:16,060 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 00:33:16,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:33:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 00:33:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 00:33:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 00:33:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-10-20 00:33:16,065 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2020-10-20 00:33:16,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:16,066 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-10-20 00:33:16,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 00:33:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-10-20 00:33:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 00:33:16,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:16,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:16,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:33:16,279 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:16,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2020-10-20 00:33:16,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:16,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033330323] [2020-10-20 00:33:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 00:33:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:16,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:17,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:17,657 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 00:33:17,658 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:33:17,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:33:17,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:33:17 BoogieIcfgContainer [2020-10-20 00:33:17,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:33:17,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:33:17,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:33:17,938 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:33:17,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:13" (3/4) ... [2020-10-20 00:33:17,941 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:33:18,025 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:33:18,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:33:18,028 INFO L168 Benchmark]: Toolchain (without parser) took 6498.35 ms. Allocated memory was 40.4 MB in the beginning and 49.3 MB in the end (delta: 8.9 MB). Free memory was 17.4 MB in the beginning and 12.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,029 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 30.9 MB. Free memory was 17.2 MB in the beginning and 17.2 MB in the end (delta: 32.0 kB). Peak memory consumption was 32.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.48 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 16.5 MB in the beginning and 13.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 41.4 MB. Free memory was 13.6 MB in the beginning and 11.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,031 INFO L168 Benchmark]: Boogie Preprocessor took 79.57 ms. Allocated memory was 41.4 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). Free memory was 11.1 MB in the beginning and 24.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 582.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,032 INFO L168 Benchmark]: RCFGBuilder took 1339.94 ms. Allocated memory was 43.0 MB in the beginning and 44.0 MB in the end (delta: 1.0 MB). Free memory was 24.7 MB in the beginning and 23.9 MB in the end (delta: 748.6 kB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,033 INFO L168 Benchmark]: TraceAbstraction took 4526.06 ms. Allocated memory was 44.0 MB in the beginning and 49.3 MB in the end (delta: 5.2 MB). Free memory was 23.4 MB in the beginning and 15.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,034 INFO L168 Benchmark]: Witness Printer took 88.32 ms. Allocated memory is still 49.3 MB. Free memory was 15.4 MB in the beginning and 12.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:18,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 30.9 MB. Free memory was 17.2 MB in the beginning and 17.2 MB in the end (delta: 32.0 kB). Peak memory consumption was 32.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 395.48 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 16.5 MB in the beginning and 13.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 41.4 MB. Free memory was 13.6 MB in the beginning and 11.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 79.57 ms. Allocated memory was 41.4 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). Free memory was 11.1 MB in the beginning and 24.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 582.8 kB. Max. memory is 14.3 GB. * RCFGBuilder took 1339.94 ms. Allocated memory was 43.0 MB in the beginning and 44.0 MB in the end (delta: 1.0 MB). Free memory was 24.7 MB in the beginning and 23.9 MB in the end (delta: 748.6 kB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4526.06 ms. Allocated memory was 44.0 MB in the beginning and 49.3 MB in the end (delta: 5.2 MB). Free memory was 23.4 MB in the beginning and 15.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * Witness Printer took 88.32 ms. Allocated memory is still 49.3 MB. Free memory was 15.4 MB in the beginning and 12.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1.0] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [one_modf=1.0] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L31] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L67] COND TRUE j0 > 51 [L68] __uint32_t high; [L69] *iptr = x * one_modf VAL [one_modf=1.0] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (high) = gh_u.parts.msw [L76] ieee_double_shape_type iw_u; [L77] iw_u.parts.msw = (high & 0x80000000) [L78] iw_u.parts.lsw = (0) [L79] EXPR iw_u.value [L79] (x) = iw_u.value [L81] return x; VAL [one_modf=1.0] [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) [L17] return x != x; VAL [one_modf=1.0] [L123] isnan_double(iptr) && !isnan_double(res) [L17] return x != x; VAL [one_modf=1.0] [L123] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1210.c", 3, "reach_error") VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 50 SDslu, 35 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 5 QuantifiedInterpolants, 2708 SizeOfPredicates, 8 NumberOfNonLiveVariables, 209 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...