./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_1012b.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56df0817616f6c5016a1ac832f32db0c87e1c370 ........................................................................................................................................................................................................................................................................................................................................ 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 -Xmx12G -Xms1G -ea -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_1012b.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56df0817616f6c5016a1ac832f32db0c87e1c370 ....................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-28 17:41:44,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:41:44,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:41:44,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:41:44,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:41:44,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:41:44,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:41:44,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:41:44,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:41:44,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:41:44,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:41:44,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:41:44,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:41:44,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:41:44,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:41:44,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:41:44,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:41:44,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:41:44,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:41:44,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:41:44,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:41:44,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:41:44,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:41:44,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:41:44,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:41:44,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:41:44,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:41:44,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:41:44,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:41:44,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:41:44,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:41:44,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:41:44,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:41:44,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:41:44,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:41:44,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:41:44,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:41:44,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:41:44,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:41:44,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:41:44,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:41:44,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:41:44,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:41:44,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:41:44,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:41:44,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:41:44,879 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:41:44,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:41:44,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:41:44,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:41:44,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:41:44,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:41:44,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:41:44,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:41:44,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:41:44,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:41:44,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:41:44,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:41:44,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:41:44,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:41:44,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:41:44,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:41:44,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:41:44,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:41:44,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:41:44,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:41:44,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:41:44,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:41:44,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:41:44,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:41:44,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:41:44,886 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(__VERIFIER_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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2020-07-28 17:41:45,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:41:45,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:41:45,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:41:45,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:41:45,220 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:41:45,222 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2020-07-28 17:41:45,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2131ade4d/6adc5a7c9c2849dc926af62f7fc939be/FLAG21d167d16 [2020-07-28 17:41:45,776 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:41:45,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2020-07-28 17:41:45,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2131ade4d/6adc5a7c9c2849dc926af62f7fc939be/FLAG21d167d16 [2020-07-28 17:41:46,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2131ade4d/6adc5a7c9c2849dc926af62f7fc939be [2020-07-28 17:41:46,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:41:46,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:41:46,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:46,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:41:46,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:41:46,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e71c8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46, skipping insertion in model container [2020-07-28 17:41:46,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:41:46,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:41:46,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:46,445 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:41:46,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:46,560 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:41:46,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46 WrapperNode [2020-07-28 17:41:46,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:46,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:46,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:41:46,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:41:46,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:46,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:41:46,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:41:46,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:41:46,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (1/1) ... [2020-07-28 17:41:46,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:41:46,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:41:46,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:41:46,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:41:46,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (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 [2020-07-28 17:41:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:41:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:41:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:41:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:41:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:41:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:41:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:41:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:41:47,148 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:41:47,149 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:41:47,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:47 BoogieIcfgContainer [2020-07-28 17:41:47,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:41:47,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:41:47,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:41:47,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:41:47,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:41:46" (1/3) ... [2020-07-28 17:41:47,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ea6d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:47, skipping insertion in model container [2020-07-28 17:41:47,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:46" (2/3) ... [2020-07-28 17:41:47,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ea6d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:47, skipping insertion in model container [2020-07-28 17:41:47,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:47" (3/3) ... [2020-07-28 17:41:47,163 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2020-07-28 17:41:47,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:41:47,182 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:41:47,200 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:41:47,223 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:41:47,224 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:41:47,224 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:41:47,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:41:47,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:41:47,225 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:41:47,225 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:41:47,225 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:41:47,241 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-28 17:41:47,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:41:47,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:47,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:47,250 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:47,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:47,257 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2020-07-28 17:41:47,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:41:47,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008368729] [2020-07-28 17:41:47,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:41:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:41:47,410 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {21#true} is VALID [2020-07-28 17:41:47,411 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticDOUBLEoperation(~someUnaryDOUBLEoperation(1.0), 0.0);fabs_double_#in~x := main_~x~0;havoc fabs_double_#res;havoc fabs_double_#t~mem6, fabs_double_#t~union7, fabs_double_~#gh_u~1.base, fabs_double_~#gh_u~1.offset, fabs_double_#t~mem8, fabs_double_#t~union9.lsw, fabs_double_#t~union9.msw, fabs_double_~#sh_u~0.base, fabs_double_~#sh_u~0.offset, fabs_double_~x, fabs_double_~high~0;fabs_double_~x := fabs_double_#in~x;havoc fabs_double_~high~0; {21#true} is VALID [2020-07-28 17:41:47,414 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-28 17:41:47,414 INFO L280 TraceCheckUtils]: 3: Hoare triple {22#false} assume !true; {22#false} is VALID [2020-07-28 17:41:47,414 INFO L280 TraceCheckUtils]: 4: Hoare triple {22#false} fabs_double_#res := fabs_double_~x; {22#false} is VALID [2020-07-28 17:41:47,415 INFO L280 TraceCheckUtils]: 5: Hoare triple {22#false} main_#t~ret10 := fabs_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem2, isinf_double_#t~union3, isinf_double_#t~mem4, isinf_double_#t~union5, isinf_double_~#ew_u~0.base, isinf_double_~#ew_u~0.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {22#false} is VALID [2020-07-28 17:41:47,416 INFO L280 TraceCheckUtils]: 6: Hoare triple {22#false} assume !true; {22#false} is VALID [2020-07-28 17:41:47,416 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} isinf_double_~hx~0 := ~bitwiseAnd(isinf_double_~hx~0, 2147483647);isinf_double_~hx~0 := (if ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 - 4294967296);isinf_double_~hx~0 := 2146435072 - isinf_double_~hx~0;isinf_double_#res := 1 - (if ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 - 4294967296); {22#false} is VALID [2020-07-28 17:41:47,417 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} main_#t~ret11 := isinf_double_#res;assume -2147483648 <= main_#t~ret11 && main_#t~ret11 <= 2147483647; {22#false} is VALID [2020-07-28 17:41:47,417 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume 0 == main_#t~ret11;havoc main_#t~ret11; {22#false} is VALID [2020-07-28 17:41:47,418 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-28 17:41:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:41:47,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008368729] [2020-07-28 17:41:47,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:41:47,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:41:47,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982633307] [2020-07-28 17:41:47,431 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:41:47,433 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:41:47,437 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:41:47,467 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:47,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:41:47,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:41:47,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:41:47,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:41:47,482 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-07-28 17:41:47,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:47,545 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2020-07-28 17:41:47,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:41:47,546 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:41:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:41:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:41:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:41:47,561 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 46 transitions. [2020-07-28 17:41:47,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:47,657 INFO L225 Difference]: With dead ends: 34 [2020-07-28 17:41:47,658 INFO L226 Difference]: Without dead ends: 15 [2020-07-28 17:41:47,662 INFO L675 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 [2020-07-28 17:41:47,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-28 17:41:47,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-28 17:41:47,698 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:41:47,699 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:47,699 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:47,699 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:47,703 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:41:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:41:47,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:47,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:47,704 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:47,704 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:47,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:47,707 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:41:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:41:47,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:47,708 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:47,708 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:41:47,709 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:41:47,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:41:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-28 17:41:47,713 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2020-07-28 17:41:47,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:41:47,713 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-28 17:41:47,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:41:47,714 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:41:47,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:41:47,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:47,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:47,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:41:47,716 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:47,717 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2020-07-28 17:41:47,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:41:47,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208967588] [2020-07-28 17:41:47,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:41:47,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:41:47,860 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:41:47,869 INFO L168 Benchmark]: Toolchain (without parser) took 1692.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -99.5 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:47,870 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:47,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:47,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:47,873 INFO L168 Benchmark]: Boogie Preprocessor took 45.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:47,874 INFO L168 Benchmark]: RCFGBuilder took 497.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:47,875 INFO L168 Benchmark]: TraceAbstraction took 710.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:47,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 384.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 497.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 710.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:41:49,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:41:49,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:41:49,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:41:49,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:41:49,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:41:49,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:41:49,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:41:49,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:41:49,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:41:49,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:41:49,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:41:49,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:41:49,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:41:49,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:41:49,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:41:49,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:41:49,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:41:49,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:41:49,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:41:49,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:41:49,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:41:49,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:41:49,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:41:49,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:41:49,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:41:49,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:41:49,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:41:49,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:41:49,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:41:49,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:41:49,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:41:49,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:41:49,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:41:49,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:41:49,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:41:49,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:41:49,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:41:49,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:41:49,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:41:49,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:41:49,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:41:50,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:41:50,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:41:50,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:41:50,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:41:50,028 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:41:50,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:41:50,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:41:50,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:41:50,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:41:50,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:41:50,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:41:50,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:41:50,031 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:41:50,031 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:41:50,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:41:50,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:41:50,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:41:50,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:41:50,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:41:50,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:41:50,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:41:50,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:41:50,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:41:50,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:41:50,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:41:50,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:41:50,035 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:41:50,036 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:41:50,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:41:50,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:41:50,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:41:50,037 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(__VERIFIER_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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2020-07-28 17:41:50,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:41:50,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:41:50,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:41:50,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:41:50,372 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:41:50,373 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2020-07-28 17:41:50,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/611986339/7221c021a8644fcc8394704ff504df71/FLAGb6cc61d8e [2020-07-28 17:41:50,917 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:41:50,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2020-07-28 17:41:50,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/611986339/7221c021a8644fcc8394704ff504df71/FLAGb6cc61d8e [2020-07-28 17:41:51,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/611986339/7221c021a8644fcc8394704ff504df71 [2020-07-28 17:41:51,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:41:51,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:41:51,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:51,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:41:51,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:41:51,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ec6ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51, skipping insertion in model container [2020-07-28 17:41:51,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:41:51,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:41:51,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:51,545 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:41:51,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:51,680 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:41:51,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51 WrapperNode [2020-07-28 17:41:51,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:51,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:51,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:41:51,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:41:51,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:51,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:41:51,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:41:51,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:41:51,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (1/1) ... [2020-07-28 17:41:51,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:41:51,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:41:51,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:41:51,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:41:51,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (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 [2020-07-28 17:41:51,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:41:51,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:41:51,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:41:51,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:41:51,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:41:51,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:41:51,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:41:51,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:41:52,260 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:41:52,261 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:41:52,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:52 BoogieIcfgContainer [2020-07-28 17:41:52,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:41:52,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:41:52,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:41:52,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:41:52,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:41:51" (1/3) ... [2020-07-28 17:41:52,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438f6b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:52, skipping insertion in model container [2020-07-28 17:41:52,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:51" (2/3) ... [2020-07-28 17:41:52,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438f6b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:52, skipping insertion in model container [2020-07-28 17:41:52,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:52" (3/3) ... [2020-07-28 17:41:52,280 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2020-07-28 17:41:52,294 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:41:52,305 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:41:52,328 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:41:52,364 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:41:52,365 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:41:52,365 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:41:52,365 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:41:52,365 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:41:52,366 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:41:52,366 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:41:52,366 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:41:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-28 17:41:52,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:41:52,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:52,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:52,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:52,409 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2020-07-28 17:41:52,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:41:52,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918999333] [2020-07-28 17:41:52,420 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 [2020-07-28 17:41:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:41:52,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:41:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:41:52,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:41:52,567 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {21#true} is VALID [2020-07-28 17:41:52,568 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0)), ~Pluszero~DOUBLE());fabs_double_#in~x := main_~x~0;havoc fabs_double_#res;havoc fabs_double_#t~mem6, fabs_double_#t~union7, fabs_double_~#gh_u~1.base, fabs_double_~#gh_u~1.offset, fabs_double_#t~mem8, fabs_double_#t~union9.lsw, fabs_double_#t~union9.msw, fabs_double_~#sh_u~0.base, fabs_double_~#sh_u~0.offset, fabs_double_~x, fabs_double_~high~0;fabs_double_~x := fabs_double_#in~x;havoc fabs_double_~high~0; {21#true} is VALID [2020-07-28 17:41:52,568 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:41:52,569 INFO L280 TraceCheckUtils]: 3: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:41:52,569 INFO L280 TraceCheckUtils]: 4: Hoare triple {21#true} fabs_double_#res := fabs_double_~x; {21#true} is VALID [2020-07-28 17:41:52,570 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} main_#t~ret10 := fabs_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem2, isinf_double_#t~union3, isinf_double_#t~mem4, isinf_double_#t~union5, isinf_double_~#ew_u~0.base, isinf_double_~#ew_u~0.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {21#true} is VALID [2020-07-28 17:41:52,571 INFO L280 TraceCheckUtils]: 6: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-28 17:41:52,571 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {22#false} is VALID [2020-07-28 17:41:52,572 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} main_#t~ret11 := isinf_double_#res; {22#false} is VALID [2020-07-28 17:41:52,572 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {22#false} is VALID [2020-07-28 17:41:52,573 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-28 17:41:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:41:52,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:41:52,596 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-28 17:41:52,597 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {22#false} is VALID [2020-07-28 17:41:52,598 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} main_#t~ret11 := isinf_double_#res; {22#false} is VALID [2020-07-28 17:41:52,598 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {22#false} is VALID [2020-07-28 17:41:52,599 INFO L280 TraceCheckUtils]: 6: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-28 17:41:52,599 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} main_#t~ret10 := fabs_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem2, isinf_double_#t~union3, isinf_double_#t~mem4, isinf_double_#t~union5, isinf_double_~#ew_u~0.base, isinf_double_~#ew_u~0.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {21#true} is VALID [2020-07-28 17:41:52,600 INFO L280 TraceCheckUtils]: 4: Hoare triple {21#true} fabs_double_#res := fabs_double_~x; {21#true} is VALID [2020-07-28 17:41:52,600 INFO L280 TraceCheckUtils]: 3: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:41:52,601 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:41:52,601 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0)), ~Pluszero~DOUBLE());fabs_double_#in~x := main_~x~0;havoc fabs_double_#res;havoc fabs_double_#t~mem6, fabs_double_#t~union7, fabs_double_~#gh_u~1.base, fabs_double_~#gh_u~1.offset, fabs_double_#t~mem8, fabs_double_#t~union9.lsw, fabs_double_#t~union9.msw, fabs_double_~#sh_u~0.base, fabs_double_~#sh_u~0.offset, fabs_double_~x, fabs_double_~high~0;fabs_double_~x := fabs_double_#in~x;havoc fabs_double_~high~0; {21#true} is VALID [2020-07-28 17:41:52,601 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {21#true} is VALID [2020-07-28 17:41:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:41:52,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918999333] [2020-07-28 17:41:52,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:41:52,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:41:52,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836338684] [2020-07-28 17:41:52,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:41:52,613 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:41:52,618 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:41:52,644 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:52,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:41:52,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:41:52,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:41:52,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:41:52,657 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-07-28 17:41:52,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:52,756 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2020-07-28 17:41:52,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:41:52,757 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:41:52,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:41:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:52,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:41:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:41:52,768 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 46 transitions. [2020-07-28 17:41:52,857 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:52,867 INFO L225 Difference]: With dead ends: 34 [2020-07-28 17:41:52,868 INFO L226 Difference]: Without dead ends: 15 [2020-07-28 17:41:52,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:41:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-28 17:41:52,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-28 17:41:52,903 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:41:52,903 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:52,904 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:52,904 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:52,907 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:41:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:41:52,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:52,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:52,908 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:52,909 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:41:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:52,911 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:41:52,911 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:41:52,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:52,912 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:52,912 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:41:52,912 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:41:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:41:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-28 17:41:52,916 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2020-07-28 17:41:52,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:41:52,917 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-28 17:41:52,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:41:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:41:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:41:52,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:52,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:53,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:41:53,133 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:53,134 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2020-07-28 17:41:53,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:41:53,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470013788] [2020-07-28 17:41:53,136 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 [2020-07-28 17:41:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:41:53,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:41:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:41:53,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:41:53,480 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:41:53,481 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:41:53,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:41:53,716 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:41:53,716 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:41:53,716 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:41:53,717 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:41:53,717 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:41:53,717 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:41:53,717 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2020-07-28 17:41:53,718 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2020-07-28 17:41:53,718 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-28 17:41:53,718 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-28 17:41:53,718 WARN L170 areAnnotationChecker]: L51-2 has no Hoare annotation [2020-07-28 17:41:53,718 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 17:41:53,719 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-28 17:41:53,719 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-28 17:41:53,719 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-28 17:41:53,719 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-28 17:41:53,720 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-28 17:41:53,720 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:41:53,720 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2020-07-28 17:41:53,720 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2020-07-28 17:41:53,721 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2020-07-28 17:41:53,721 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2020-07-28 17:41:53,721 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 17:41:53,721 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:41:53,722 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:41:53,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:41:53 BoogieIcfgContainer [2020-07-28 17:41:53,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:41:53,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:41:53,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:41:53,726 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:41:53,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:52" (3/4) ... [2020-07-28 17:41:53,729 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:41:53,795 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:41:53,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:41:53,799 INFO L168 Benchmark]: Toolchain (without parser) took 2492.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.2 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:53,800 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:53,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:53,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:53,803 INFO L168 Benchmark]: Boogie Preprocessor took 43.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:53,803 INFO L168 Benchmark]: RCFGBuilder took 481.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:53,804 INFO L168 Benchmark]: TraceAbstraction took 1458.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.5 MB). Peak memory consumption was 69.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:53,805 INFO L168 Benchmark]: Witness Printer took 70.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:53,808 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 481.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1458.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.5 MB). Peak memory consumption was 69.5 MB. Max. memory is 11.5 GB. * Witness Printer took 70.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L68] double x = -1.0 / 0.0; [L45] __uint32_t high; [L47] ieee_double_shape_type gh_u; [L48] gh_u.value = (x) [L49] EXPR gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L52] ieee_double_shape_type sh_u; [L53] sh_u.value = (x) [L54] sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR sh_u.value [L55] (x) = sh_u.value [L57] return x; [L69] double res = fabs_double(x); [L31] __int32_t hx, lx; [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (x) [L35] EXPR ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...