./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092b.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_1092b.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 716c28290dbb6f2a00a15a2121f6ea544c27813b ............................................................................................................................................................................................................................................................................................... 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_1092b.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 716c28290dbb6f2a00a15a2121f6ea544c27813b ................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:32:49,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:32:49,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:32:49,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:32:49,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:32:49,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:32:49,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:32:49,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:32:49,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:32:49,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:32:49,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:32:49,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:32:49,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:32:49,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:32:49,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:32:49,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:32:49,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:32:49,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:32:49,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:32:49,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:32:49,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:32:49,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:32:49,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:32:49,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:32:49,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:32:49,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:32:49,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:32:49,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:32:49,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:32:49,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:32:49,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:32:49,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:32:49,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:32:50,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:32:50,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:32:50,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:32:50,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:32:50,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:32:50,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:32:50,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:32:50,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:32:50,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:32:50,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:32:50,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:32:50,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:32:50,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:32:50,050 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:32:50,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:32:50,050 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:32:50,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:32:50,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:32:50,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:32:50,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:32:50,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:32:50,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:32:50,052 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:32:50,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:32:50,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:32:50,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:32:50,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:32:50,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:32:50,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:32:50,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:32:50,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:32:50,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:32:50,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:32:50,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:32:50,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:32:50,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:32:50,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:32:50,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:32:50,056 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 -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-10-20 00:32:50,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:32:50,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:32:50,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:32:50,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:32:50,281 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:32:50,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-10-20 00:32:50,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98707159f/c3540a2aa1844c95b5a26ec0087c7bec/FLAGab5cdac79 [2020-10-20 00:32:50,835 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:32:50,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-10-20 00:32:50,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98707159f/c3540a2aa1844c95b5a26ec0087c7bec/FLAGab5cdac79 [2020-10-20 00:32:51,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98707159f/c3540a2aa1844c95b5a26ec0087c7bec [2020-10-20 00:32:51,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:32:51,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:32:51,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:51,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:32:51,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:32:51,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a4eae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51, skipping insertion in model container [2020-10-20 00:32:51,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:32:51,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:32:51,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:51,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:32:51,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:51,595 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:32:51,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51 WrapperNode [2020-10-20 00:32:51,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:51,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:51,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:32:51,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:32:51,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:51,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:32:51,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:32:51,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:32:51,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (1/1) ... [2020-10-20 00:32:51,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:32:51,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:32:51,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:32:51,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:32:51,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (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 00:32:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:32:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:32:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:32:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:32:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:32:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:32:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:32:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:32:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:32:52,080 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:32:52,081 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-20 00:32:52,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:52 BoogieIcfgContainer [2020-10-20 00:32:52,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:32:52,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:32:52,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:32:52,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:32:52,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:32:51" (1/3) ... [2020-10-20 00:32:52,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a770cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:52, skipping insertion in model container [2020-10-20 00:32:52,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:51" (2/3) ... [2020-10-20 00:32:52,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a770cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:52, skipping insertion in model container [2020-10-20 00:32:52,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:52" (3/3) ... [2020-10-20 00:32:52,094 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-10-20 00:32:52,110 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:32:52,119 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:32:52,141 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:32:52,199 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:32:52,199 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:32:52,199 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:32:52,200 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:32:52,204 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:32:52,205 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:32:52,205 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:32:52,205 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:32:52,223 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-20 00:32:52,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:32:52,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:52,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:52,232 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:52,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-10-20 00:32:52,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:32:52,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965361699] [2020-10-20 00:32:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:32:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:52,404 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 00:32:52,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965361699] [2020-10-20 00:32:52,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:52,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:32:52,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633148063] [2020-10-20 00:32:52,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:32:52,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:32:52,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:32:52,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:52,426 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-20 00:32:52,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:52,455 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-10-20 00:32:52,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:32:52,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:32:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:52,469 INFO L225 Difference]: With dead ends: 65 [2020-10-20 00:32:52,469 INFO L226 Difference]: Without dead ends: 30 [2020-10-20 00:32:52,472 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 00:32:52,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-20 00:32:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-20 00:32:52,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:32:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-20 00:32:52,515 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-10-20 00:32:52,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:52,515 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-20 00:32:52,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:32:52,516 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-20 00:32:52,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:32:52,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:52,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:52,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:32:52,517 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:52,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:52,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-10-20 00:32:52,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:32:52,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832841988] [2020-10-20 00:32:52,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:32:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:52,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:52,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:52,636 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:32:52,637 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:32:52,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:32:52,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:32:52 BoogieIcfgContainer [2020-10-20 00:32:52,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:32:52,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:32:52,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:32:52,677 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:32:52,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:52" (3/4) ... [2020-10-20 00:32:52,682 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:32:52,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:32:52,686 INFO L168 Benchmark]: Toolchain (without parser) took 1457.21 ms. Allocated memory was 35.1 MB in the beginning and 47.7 MB in the end (delta: 12.6 MB). Free memory was 12.5 MB in the beginning and 13.5 MB in the end (delta: -949.2 kB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,687 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 34.1 MB. Free memory was 19.7 MB in the beginning and 19.7 MB in the end (delta: 31.4 kB). Peak memory consumption was 31.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.24 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 11.7 MB in the beginning and 22.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.42 ms. Allocated memory is still 43.5 MB. Free memory was 22.3 MB in the beginning and 20.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,690 INFO L168 Benchmark]: Boogie Preprocessor took 35.29 ms. Allocated memory is still 43.5 MB. Free memory was 20.3 MB in the beginning and 18.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,691 INFO L168 Benchmark]: RCFGBuilder took 404.34 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 18.5 MB in the beginning and 25.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,692 INFO L168 Benchmark]: TraceAbstraction took 590.23 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 25.3 MB in the beginning and 14.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,693 INFO L168 Benchmark]: Witness Printer took 5.99 ms. Allocated memory is still 47.7 MB. Free memory was 14.1 MB in the beginning and 13.5 MB in the end (delta: 621.4 kB). Peak memory consumption was 621.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:32:52,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 34.1 MB. Free memory was 19.7 MB in the beginning and 19.7 MB in the end (delta: 31.4 kB). Peak memory consumption was 31.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 363.24 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 11.7 MB in the beginning and 22.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 47.42 ms. Allocated memory is still 43.5 MB. Free memory was 22.3 MB in the beginning and 20.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.29 ms. Allocated memory is still 43.5 MB. Free memory was 20.3 MB in the beginning and 18.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 404.34 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 18.5 MB in the beginning and 25.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 590.23 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 25.3 MB in the beginning and 14.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. * Witness Printer took 5.99 ms. Allocated memory is still 47.7 MB. Free memory was 14.1 MB in the beginning and 13.5 MB in the end (delta: 621.4 kB). Peak memory consumption was 621.4 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 shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [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 [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 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: 47 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=34occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 0.1.25-9a8b2e8 [2020-10-20 00:32:54,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:32:54,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:32:54,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:32:54,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:32:54,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:32:54,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:32:54,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:32:54,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:32:54,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:32:54,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:32:54,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:32:54,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:32:54,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:32:54,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:32:54,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:32:54,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:32:54,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:32:54,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:32:54,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:32:54,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:32:54,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:32:54,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:32:54,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:32:54,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:32:54,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:32:54,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:32:54,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:32:54,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:32:54,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:32:54,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:32:54,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:32:54,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:32:54,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:32:54,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:32:54,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:32:54,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:32:54,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:32:54,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:32:54,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:32:54,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:32:54,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:32:54,888 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:32:54,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:32:54,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:32:54,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:32:54,890 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:32:54,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:32:54,890 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:32:54,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:32:54,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:32:54,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:32:54,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:32:54,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:32:54,892 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:32:54,892 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:32:54,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:32:54,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:32:54,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:32:54,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:32:54,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:32:54,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:32:54,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:32:54,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:32:54,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:32:54,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:32:54,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:32:54,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:32:54,896 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:32:54,896 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:32:54,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:32:54,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:32:54,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:32:54,897 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 -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-10-20 00:32:55,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:32:55,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:32:55,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:32:55,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:32:55,122 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:32:55,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-10-20 00:32:55,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d3ea45a/28dbf8a24c31425fa32cb9e487ab23ca/FLAG27d80cb55 [2020-10-20 00:32:55,622 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:32:55,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-10-20 00:32:55,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d3ea45a/28dbf8a24c31425fa32cb9e487ab23ca/FLAG27d80cb55 [2020-10-20 00:32:55,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d3ea45a/28dbf8a24c31425fa32cb9e487ab23ca [2020-10-20 00:32:55,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:32:55,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:32:55,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:55,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:32:55,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:32:55,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:55" (1/1) ... [2020-10-20 00:32:55,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bebe73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:55, skipping insertion in model container [2020-10-20 00:32:55,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:55" (1/1) ... [2020-10-20 00:32:55,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:32:56,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:32:56,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:56,292 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:32:56,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:56,351 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:32:56,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56 WrapperNode [2020-10-20 00:32:56,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:56,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:56,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:32:56,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:32:56,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:56,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:32:56,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:32:56,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:32:56,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... [2020-10-20 00:32:56,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:32:56,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:32:56,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:32:56,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:32:56,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:32:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:32:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:32:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:32:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:32:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:32:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:32:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:32:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:32:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:32:57,810 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:32:57,811 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-20 00:32:57,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:57 BoogieIcfgContainer [2020-10-20 00:32:57,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:32:57,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:32:57,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:32:57,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:32:57,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:32:55" (1/3) ... [2020-10-20 00:32:57,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bb66a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:57, skipping insertion in model container [2020-10-20 00:32:57,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:56" (2/3) ... [2020-10-20 00:32:57,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bb66a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:57, skipping insertion in model container [2020-10-20 00:32:57,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:57" (3/3) ... [2020-10-20 00:32:57,821 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-10-20 00:32:57,833 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:32:57,840 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:32:57,851 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:32:57,873 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:32:57,873 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:32:57,873 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:32:57,873 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:32:57,874 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:32:57,874 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:32:57,874 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:32:57,874 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:32:57,887 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-20 00:32:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:32:57,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:57,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:57,895 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:57,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:57,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-10-20 00:32:57,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:57,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538805536] [2020-10-20 00:32:57,915 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 00:32:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:58,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:32:58,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:58,036 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 00:32:58,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:58,041 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 00:32:58,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538805536] [2020-10-20 00:32:58,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:58,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:32:58,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95060187] [2020-10-20 00:32:58,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:32:58,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:58,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:32:58,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:58,066 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-20 00:32:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:58,087 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-10-20 00:32:58,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:32:58,088 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:32:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:58,099 INFO L225 Difference]: With dead ends: 65 [2020-10-20 00:32:58,100 INFO L226 Difference]: Without dead ends: 30 [2020-10-20 00:32:58,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 00:32:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-20 00:32:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-20 00:32:58,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:32:58,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-20 00:32:58,138 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-10-20 00:32:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:58,138 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-20 00:32:58,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:32:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-20 00:32:58,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:32:58,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:58,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:58,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:32:58,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:58,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:58,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-10-20 00:32:58,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:58,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392359338] [2020-10-20 00:32:58,356 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 00:32:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:58,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:32:58,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:58,601 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 00:32:58,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:58,702 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 00:32:58,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392359338] [2020-10-20 00:32:58,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:58,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:32:58,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385603350] [2020-10-20 00:32:58,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:32:58,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:58,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:32:58,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:32:58,711 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2020-10-20 00:32:59,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:59,150 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-10-20 00:32:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 00:32:59,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-20 00:32:59,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:59,152 INFO L225 Difference]: With dead ends: 44 [2020-10-20 00:32:59,152 INFO L226 Difference]: Without dead ends: 24 [2020-10-20 00:32:59,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:32:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-20 00:32:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2020-10-20 00:32:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 00:32:59,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-20 00:32:59,159 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2020-10-20 00:32:59,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:59,159 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-20 00:32:59,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:32:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-20 00:32:59,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:32:59,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:59,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:59,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:32:59,362 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2020-10-20 00:32:59,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:59,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290927461] [2020-10-20 00:32:59,368 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 00:32:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:59,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 00:32:59,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:59,626 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 00:32:59,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:00,305 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-20 00:33:00,572 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 00:33:00,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290927461] [2020-10-20 00:33:00,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:00,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:33:00,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055712696] [2020-10-20 00:33:00,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:33:00,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:00,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:33:00,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:33:00,575 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2020-10-20 00:33:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:01,015 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-10-20 00:33:01,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:33:01,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 00:33:01,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:01,025 INFO L225 Difference]: With dead ends: 24 [2020-10-20 00:33:01,025 INFO L226 Difference]: Without dead ends: 17 [2020-10-20 00:33:01,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:33:01,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-20 00:33:01,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-20 00:33:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 00:33:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-10-20 00:33:01,029 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2020-10-20 00:33:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:01,030 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-10-20 00:33:01,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:33:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-10-20 00:33:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 00:33:01,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:01,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:01,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:33:01,235 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:01,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:01,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2020-10-20 00:33:01,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:01,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340311671] [2020-10-20 00:33:01,237 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 00:33:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:01,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:01,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:01,719 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 00:33:01,720 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:33:01,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:33:01,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:33:01 BoogieIcfgContainer [2020-10-20 00:33:01,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:33:01,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:33:01,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:33:01,976 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:33:01,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:57" (3/4) ... [2020-10-20 00:33:01,980 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:33:02,075 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:33:02,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:33:02,077 INFO L168 Benchmark]: Toolchain (without parser) took 6108.57 ms. Allocated memory was 35.1 MB in the beginning and 49.8 MB in the end (delta: 14.7 MB). Free memory was 12.1 MB in the beginning and 13.2 MB in the end (delta: -1.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,078 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.01 ms. Allocated memory was 35.1 MB in the beginning and 43.0 MB in the end (delta: 7.9 MB). Free memory was 11.1 MB in the beginning and 23.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.51 ms. Allocated memory is still 43.0 MB. Free memory was 23.9 MB in the beginning and 21.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,080 INFO L168 Benchmark]: Boogie Preprocessor took 42.32 ms. Allocated memory is still 43.0 MB. Free memory was 21.9 MB in the beginning and 20.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,081 INFO L168 Benchmark]: RCFGBuilder took 1366.91 ms. Allocated memory was 43.0 MB in the beginning and 44.0 MB in the end (delta: 1.0 MB). Free memory was 20.0 MB in the beginning and 25.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,082 INFO L168 Benchmark]: TraceAbstraction took 4160.90 ms. Allocated memory was 44.0 MB in the beginning and 49.8 MB in the end (delta: 5.8 MB). Free memory was 24.8 MB in the beginning and 16.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,083 INFO L168 Benchmark]: Witness Printer took 99.99 ms. Allocated memory is still 49.8 MB. Free memory was 16.7 MB in the beginning and 13.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:02,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 378.01 ms. Allocated memory was 35.1 MB in the beginning and 43.0 MB in the end (delta: 7.9 MB). Free memory was 11.1 MB in the beginning and 23.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.51 ms. Allocated memory is still 43.0 MB. Free memory was 23.9 MB in the beginning and 21.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 42.32 ms. Allocated memory is still 43.0 MB. Free memory was 21.9 MB in the beginning and 20.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1366.91 ms. Allocated memory was 43.0 MB in the beginning and 44.0 MB in the end (delta: 1.0 MB). Free memory was 20.0 MB in the beginning and 25.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4160.90 ms. Allocated memory was 44.0 MB in the beginning and 49.8 MB in the end (delta: 5.8 MB). Free memory was 24.8 MB in the beginning and 16.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 14.3 GB. * Witness Printer took 99.99 ms. Allocated memory is still 49.8 MB. Free memory was 16.7 MB in the beginning and 13.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 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 huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [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 [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND TRUE j0 < 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L33] COND TRUE huge_ceil + x > 0.0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L34] COND FALSE !(i0 < 0) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L37] COND TRUE (i0 | i1) != 0 [L38] i0 = 0x3ff00000 [L39] i1 = 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L77] ieee_double_shape_type iw_u; [L78] iw_u.parts.msw = (i0) [L79] iw_u.parts.lsw = (i1) [L80] EXPR iw_u.value [L80] (x) = iw_u.value [L82] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 107 SDslu, 27 SDs, 0 SdLazy, 28 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 5 QuantifiedInterpolants, 3227 SizeOfPredicates, 11 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 15 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...