./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c1f4b5c4 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/nla-digbench/freire1.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 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ............................................................................................................................................................................................................................ 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 -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/nla-digbench/freire1.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 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:55:14,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:55:14,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:55:14,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:55:14,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:55:14,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:55:14,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:55:14,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:55:14,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:55:14,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:55:14,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:55:14,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:55:14,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:55:14,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:55:14,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:55:14,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:55:14,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:55:14,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:55:14,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:55:14,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:55:14,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:55:14,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:55:14,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:55:14,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:55:14,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:55:14,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:55:14,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:55:14,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:55:14,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:55:14,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:55:14,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:55:14,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:55:14,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:55:14,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:55:14,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:55:14,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:55:14,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:55:14,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:55:14,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:55:14,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:55:14,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:55:14,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-08 15:55:14,836 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:55:14,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:55:14,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:55:14,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:55:14,838 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:55:14,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:55:14,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:55:14,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-08 15:55:14,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:55:14,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:55:14,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:55:14,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:55:14,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:55:14,840 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:55:14,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:55:14,840 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:55:14,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:55:14,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:55:14,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:55:14,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:55:14,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:55:14,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:55:14,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:55:14,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:55:14,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:55:14,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-08 15:55:14,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-08 15:55:14,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:55:14,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:55:14,844 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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-12-08 15:55:15,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:55:15,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:55:15,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:55:15,186 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:55:15,186 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:55:15,187 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-12-08 15:55:15,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12ed9c82/47cf2293709148a39ad45902669c5778/FLAG71db2b0c3 [2019-12-08 15:55:15,647 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:55:15,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-12-08 15:55:15,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12ed9c82/47cf2293709148a39ad45902669c5778/FLAG71db2b0c3 [2019-12-08 15:55:16,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12ed9c82/47cf2293709148a39ad45902669c5778 [2019-12-08 15:55:16,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:55:16,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:55:16,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:55:16,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:55:16,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:55:16,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6e6d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16, skipping insertion in model container [2019-12-08 15:55:16,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:55:16,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:55:16,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:55:16,348 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:55:16,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:55:16,382 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:55:16,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16 WrapperNode [2019-12-08 15:55:16,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:55:16,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:55:16,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:55:16,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:55:16,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:55:16,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:55:16,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:55:16,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:55:16,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (1/1) ... [2019-12-08 15:55:16,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:55:16,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:55:16,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:55:16,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:55:16,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (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 [2019-12-08 15:55:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:55:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:55:16,781 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:55:16,781 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-08 15:55:16,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:55:16 BoogieIcfgContainer [2019-12-08 15:55:16,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:55:16,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:55:16,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:55:16,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:55:16,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:55:16" (1/3) ... [2019-12-08 15:55:16,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248fbd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:55:16, skipping insertion in model container [2019-12-08 15:55:16,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:16" (2/3) ... [2019-12-08 15:55:16,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248fbd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:55:16, skipping insertion in model container [2019-12-08 15:55:16,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:55:16" (3/3) ... [2019-12-08 15:55:16,799 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-12-08 15:55:16,811 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:55:16,818 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-08 15:55:16,831 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-08 15:55:16,857 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:55:16,857 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:55:16,858 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:55:16,858 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:55:16,858 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:55:16,858 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:55:16,858 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:55:16,859 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:55:16,879 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-12-08 15:55:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-08 15:55:16,887 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:55:16,888 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-08 15:55:16,889 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:55:16,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:55:16,896 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-12-08 15:55:16,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:55:16,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865730717] [2019-12-08 15:55:16,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:55:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:55:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:55:17,083 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-08 15:55:17,083 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:55:17,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:55:17 BoogieIcfgContainer [2019-12-08 15:55:17,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:55:17,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:55:17,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:55:17,100 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:55:17,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:55:16" (3/4) ... [2019-12-08 15:55:17,104 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-08 15:55:17,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:55:17,107 INFO L168 Benchmark]: Toolchain (without parser) took 1028.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:55:17,108 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:55:17,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.01 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:55:17,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:55:17,111 INFO L168 Benchmark]: Boogie Preprocessor took 40.65 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. [2019-12-08 15:55:17,112 INFO L168 Benchmark]: RCFGBuilder took 271.90 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-12-08 15:55:17,112 INFO L168 Benchmark]: TraceAbstraction took 312.21 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-12-08 15:55:17,113 INFO L168 Benchmark]: Witness Printer took 4.93 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. [2019-12-08 15:55:17,117 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.01 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.65 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 271.90 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 312.21 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.93 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:55:19,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:55:19,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:55:19,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:55:19,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:55:19,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:55:19,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:55:19,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:55:19,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:55:19,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:55:19,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:55:19,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:55:19,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:55:19,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:55:19,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:55:19,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:55:19,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:55:19,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:55:19,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:55:19,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:55:19,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:55:19,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:55:19,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:55:19,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:55:19,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:55:19,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:55:19,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:55:19,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:55:19,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:55:19,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:55:19,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:55:19,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:55:19,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:55:19,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:55:19,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:55:19,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:55:19,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:55:19,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:55:19,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:55:19,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:55:19,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:55:19,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-08 15:55:19,101 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:55:19,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:55:19,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:55:19,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:55:19,102 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:55:19,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:55:19,103 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:55:19,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:55:19,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:55:19,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:55:19,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:55:19,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:55:19,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-08 15:55:19,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-08 15:55:19,105 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:55:19,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:55:19,105 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:55:19,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:55:19,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:55:19,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:55:19,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:55:19,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:55:19,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:55:19,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:55:19,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:55:19,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:55:19,107 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-08 15:55:19,107 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-08 15:55:19,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:55:19,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:55:19,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-08 15:55:19,108 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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-12-08 15:55:19,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:55:19,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:55:19,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:55:19,428 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:55:19,428 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:55:19,429 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-12-08 15:55:19,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac793e24b/ff5a24fe91d540b496866c9b13a28210/FLAGebcf8b2c2 [2019-12-08 15:55:19,919 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:55:19,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-12-08 15:55:19,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac793e24b/ff5a24fe91d540b496866c9b13a28210/FLAGebcf8b2c2 [2019-12-08 15:55:20,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac793e24b/ff5a24fe91d540b496866c9b13a28210 [2019-12-08 15:55:20,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:55:20,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:55:20,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:55:20,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:55:20,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:55:20,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2086e904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20, skipping insertion in model container [2019-12-08 15:55:20,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:55:20,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:55:20,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:55:20,592 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:55:20,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:55:20,634 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:55:20,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20 WrapperNode [2019-12-08 15:55:20,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:55:20,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:55:20,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:55:20,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:55:20,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:55:20,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:55:20,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:55:20,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:55:20,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (1/1) ... [2019-12-08 15:55:20,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:55:20,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:55:20,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:55:20,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:55:20,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (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 [2019-12-08 15:55:20,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:55:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:55:25,954 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:55:25,955 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-08 15:55:25,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:55:25 BoogieIcfgContainer [2019-12-08 15:55:25,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:55:25,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:55:25,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:55:25,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:55:25,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:55:20" (1/3) ... [2019-12-08 15:55:25,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2a38d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:55:25, skipping insertion in model container [2019-12-08 15:55:25,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:55:20" (2/3) ... [2019-12-08 15:55:25,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2a38d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:55:25, skipping insertion in model container [2019-12-08 15:55:25,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:55:25" (3/3) ... [2019-12-08 15:55:25,967 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-12-08 15:55:25,977 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:55:25,983 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-08 15:55:25,995 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-08 15:55:26,021 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:55:26,021 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:55:26,021 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:55:26,022 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:55:26,022 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:55:26,022 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:55:26,022 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:55:26,023 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:55:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-08 15:55:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-08 15:55:26,043 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:55:26,044 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-08 15:55:26,044 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:55:26,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:55:26,051 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-12-08 15:55:26,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:55:26,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405785021] [2019-12-08 15:55:26,062 INFO L94 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 [2019-12-08 15:55:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:55:29,275 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-08 15:55:29,280 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:55:32,522 WARN L192 SmtUtils]: Spent 2.38 s on a formula simplification that was a NOOP. DAG size: 13 [2019-12-08 15:55:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:55:34,235 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:55:36,561 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-12-08 15:55:38,620 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-12-08 15:55:40,706 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) is different from true [2019-12-08 15:55:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:55:40,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405785021] [2019-12-08 15:55:40,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:55:40,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-12-08 15:55:40,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438446934] [2019-12-08 15:55:40,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-08 15:55:40,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:55:40,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-08 15:55:40,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=21, Unknown=3, NotChecked=18, Total=56 [2019-12-08 15:55:40,735 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-12-08 15:55:42,877 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-08 15:55:45,684 WARN L860 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-08 15:55:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:55:54,449 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-12-08 15:55:54,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-08 15:55:54,451 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-12-08 15:55:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:55:54,460 INFO L225 Difference]: With dead ends: 29 [2019-12-08 15:55:54,460 INFO L226 Difference]: Without dead ends: 11 [2019-12-08 15:55:54,463 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=22, Invalid=31, Unknown=5, NotChecked=52, Total=110 [2019-12-08 15:55:54,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-08 15:55:54,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-12-08 15:55:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-08 15:55:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-08 15:55:54,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-12-08 15:55:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:55:54,498 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-08 15:55:54,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-08 15:55:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-08 15:55:54,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-08 15:55:54,499 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:55:54,499 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:55:54,706 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-08 15:55:54,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:55:54,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:55:54,708 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-12-08 15:55:54,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:55:54,710 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105734571] [2019-12-08 15:55:54,710 INFO L94 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 [2019-12-08 15:55:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:55:55,112 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-08 15:55:55,114 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:55:57,199 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from false [2019-12-08 15:55:59,280 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from true [2019-12-08 15:55:59,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-08 15:56:01,357 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-12-08 15:56:03,413 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-12-08 15:56:03,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-08 15:56:05,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:56:05,055 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:56:07,139 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-12-08 15:56:09,197 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from true [2019-12-08 15:56:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:56:09,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105734571] [2019-12-08 15:56:09,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:56:09,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-12-08 15:56:09,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682555218] [2019-12-08 15:56:09,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-08 15:56:09,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:56:09,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-08 15:56:09,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=6, Unknown=6, NotChecked=18, Total=42 [2019-12-08 15:56:09,379 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-12-08 15:56:13,626 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from false [2019-12-08 15:56:15,681 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from true [2019-12-08 15:56:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:56:15,683 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-12-08 15:56:15,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-08 15:56:15,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-12-08 15:56:15,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:56:15,684 INFO L225 Difference]: With dead ends: 9 [2019-12-08 15:56:15,684 INFO L226 Difference]: Without dead ends: 0 [2019-12-08 15:56:15,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=14, Invalid=6, Unknown=8, NotChecked=28, Total=56 [2019-12-08 15:56:15,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-08 15:56:15,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-08 15:56:15,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-08 15:56:15,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-08 15:56:15,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-08 15:56:15,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:56:15,687 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-08 15:56:15,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-08 15:56:15,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-08 15:56:15,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-08 15:56:15,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-08 15:56:15,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-08 15:56:28,388 WARN L192 SmtUtils]: Spent 12.45 s on a formula simplification that was a NOOP. DAG size: 22 [2019-12-08 15:56:49,051 WARN L192 SmtUtils]: Spent 20.66 s on a formula simplification that was a NOOP. DAG size: 30 [2019-12-08 15:56:49,056 INFO L250 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-08 15:56:49,057 INFO L250 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-12-08 15:56:49,057 INFO L250 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-12-08 15:56:49,057 INFO L250 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-12-08 15:56:49,057 INFO L246 CegarLoopResult]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-12-08 15:56:49,057 INFO L250 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-08 15:56:49,058 INFO L250 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-08 15:56:49,058 INFO L250 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-08 15:56:49,058 INFO L250 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-12-08 15:56:49,058 INFO L246 CegarLoopResult]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (= currentRoundingMode roundNearestTiesToEven))) [2019-12-08 15:56:49,058 INFO L250 CegarLoopResult]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-12-08 15:56:49,058 INFO L250 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-12-08 15:56:49,059 INFO L246 CegarLoopResult]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-12-08 15:56:49,060 INFO L250 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-12-08 15:56:49,060 INFO L246 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-12-08 15:56:49,070 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-08 15:56:49,082 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,086 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,086 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-08 15:56:49,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:56:49 BoogieIcfgContainer [2019-12-08 15:56:49,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:56:49,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:56:49,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:56:49,093 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:56:49,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:55:25" (3/4) ... [2019-12-08 15:56:49,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-08 15:56:49,109 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-08 15:56:49,109 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-08 15:56:49,109 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-08 15:56:49,158 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-12-08 15:56:49,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:56:49,160 INFO L168 Benchmark]: Toolchain (without parser) took 88840.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -100.5 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. [2019-12-08 15:56:49,160 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:56:49,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.81 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:56:49,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.9 MB in the beginning and 1.2 GB in the end (delta: -203.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:56:49,163 INFO L168 Benchmark]: Boogie Preprocessor took 37.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-12-08 15:56:49,163 INFO L168 Benchmark]: RCFGBuilder took 5186.13 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:56:49,164 INFO L168 Benchmark]: TraceAbstraction took 83135.32 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-12-08 15:56:49,165 INFO L168 Benchmark]: Witness Printer took 65.68 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. [2019-12-08 15:56:49,168 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.81 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.9 MB in the beginning and 1.2 GB in the end (delta: -203.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. * RCFGBuilder took 5186.13 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 83135.32 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * Witness Printer took 65.68 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. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-12-08 15:56:49,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 26]: Loop Invariant [2019-12-08 15:56:49,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-08 15:56:49,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-12-08 15:56:49,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-08 15:56:49,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-08 15:56:49,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 || (((0bv32 == r && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 49.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 33.1s, HoareTripleCheckerStatistics: 12 SDtfs, 17 SDslu, 9 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 31.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 87 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 33.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 25.7s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 1 QuantifiedInterpolants, 1790 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...