./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02e16371708027ec56fdf0402c3e1a5d4f23a0ff ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02e16371708027ec56fdf0402c3e1a5d4f23a0ff ........................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:12:21,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:12:21,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:12:21,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:12:21,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:12:21,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:12:21,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:12:21,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:12:21,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:12:21,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:12:21,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:12:21,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:12:21,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:12:21,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:12:21,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:12:21,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:12:21,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:12:21,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:12:21,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:12:21,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:12:21,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:12:21,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:12:21,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:12:21,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:12:21,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:12:21,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:12:21,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:12:21,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:12:21,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:12:21,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:12:21,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:12:21,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:12:21,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:12:21,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:12:21,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:12:21,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:12:21,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:12:21,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:12:21,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:12:21,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:12:21,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:12:21,752 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 15:12:21,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:12:21,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:12:21,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:12:21,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:12:21,783 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:12:21,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:12:21,783 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:12:21,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:12:21,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:12:21,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:12:21,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:12:21,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:12:21,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:12:21,784 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:12:21,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:12:21,785 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:12:21,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:12:21,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:12:21,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:12:21,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:12:21,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:12:21,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:12:21,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:12:21,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:12:21,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:12:21,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:12:21,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:12:21,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:12:21,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:12:21,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02e16371708027ec56fdf0402c3e1a5d4f23a0ff [2020-10-24 15:12:22,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:12:22,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:12:22,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:12:22,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:12:22,218 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:12:22,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c [2020-10-24 15:12:22,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04981728c/0507cf9f83ee4b27a9d1733f1d35f985/FLAGb141b0927 [2020-10-24 15:12:22,879 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:12:22,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c [2020-10-24 15:12:22,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04981728c/0507cf9f83ee4b27a9d1733f1d35f985/FLAGb141b0927 [2020-10-24 15:12:23,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04981728c/0507cf9f83ee4b27a9d1733f1d35f985 [2020-10-24 15:12:23,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:12:23,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:12:23,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:12:23,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:12:23,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:12:23,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f39e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23, skipping insertion in model container [2020-10-24 15:12:23,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,281 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:12:23,301 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:12:23,513 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:12:23,524 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:12:23,545 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:12:23,562 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:12:23,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23 WrapperNode [2020-10-24 15:12:23,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:12:23,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:12:23,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:12:23,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:12:23,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:12:23,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:12:23,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:12:23,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:12:23,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... [2020-10-24 15:12:23,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:12:23,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:12:23,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:12:23,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:12:23,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:12:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:12:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:12:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:12:23,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:12:24,081 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:12:24,081 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-24 15:12:24,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:12:24 BoogieIcfgContainer [2020-10-24 15:12:24,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:12:24,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:12:24,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:12:24,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:12:24,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:12:23" (1/3) ... [2020-10-24 15:12:24,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609ef451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:12:24, skipping insertion in model container [2020-10-24 15:12:24,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:23" (2/3) ... [2020-10-24 15:12:24,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609ef451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:12:24, skipping insertion in model container [2020-10-24 15:12:24,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:12:24" (3/3) ... [2020-10-24 15:12:24,093 INFO L111 eAbstractionObserver]: Analyzing ICFG loop2-1.c [2020-10-24 15:12:24,106 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:12:24,111 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:12:24,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:12:24,164 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:12:24,165 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:12:24,165 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:12:24,165 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:12:24,165 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:12:24,165 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:12:24,166 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:12:24,166 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:12:24,204 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-10-24 15:12:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 15:12:24,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:12:24,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:12:24,229 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:12:24,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:12:24,242 INFO L82 PathProgramCache]: Analyzing trace with hash 119997515, now seen corresponding path program 1 times [2020-10-24 15:12:24,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:12:24,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909526037] [2020-10-24 15:12:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:12:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:12:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:12:24,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909526037] [2020-10-24 15:12:24,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:12:24,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:12:24,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463461836] [2020-10-24 15:12:24,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:12:24,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:12:24,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:12:24,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:12:24,489 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-10-24 15:12:24,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:12:24,508 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-10-24 15:12:24,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:12:24,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-24 15:12:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:12:24,520 INFO L225 Difference]: With dead ends: 30 [2020-10-24 15:12:24,520 INFO L226 Difference]: Without dead ends: 12 [2020-10-24 15:12:24,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:12:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-24 15:12:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-24 15:12:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-24 15:12:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2020-10-24 15:12:24,561 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 8 [2020-10-24 15:12:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:12:24,562 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-10-24 15:12:24,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:12:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-10-24 15:12:24,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:12:24,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:12:24,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:12:24,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:12:24,564 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:12:24,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:12:24,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2105434535, now seen corresponding path program 1 times [2020-10-24 15:12:24,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:12:24,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373642019] [2020-10-24 15:12:24,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:12:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:12:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:12:24,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373642019] [2020-10-24 15:12:24,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:12:24,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 15:12:24,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160204027] [2020-10-24 15:12:24,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 15:12:24,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:12:24,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 15:12:24,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 15:12:24,746 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2020-10-24 15:12:24,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:12:24,804 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-10-24 15:12:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 15:12:24,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-24 15:12:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:12:24,807 INFO L225 Difference]: With dead ends: 23 [2020-10-24 15:12:24,808 INFO L226 Difference]: Without dead ends: 15 [2020-10-24 15:12:24,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 15:12:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-24 15:12:24,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-10-24 15:12:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-24 15:12:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-10-24 15:12:24,817 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2020-10-24 15:12:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:12:24,818 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-10-24 15:12:24,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 15:12:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-10-24 15:12:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:12:24,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:12:24,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:12:24,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:12:24,822 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:12:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:12:24,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2048176233, now seen corresponding path program 1 times [2020-10-24 15:12:24,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:12:24,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001666699] [2020-10-24 15:12:24,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:12:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:12:24,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:12:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:12:24,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:12:24,960 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:12:24,960 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:12:24,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 15:12:24,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:12:24 BoogieIcfgContainer [2020-10-24 15:12:24,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:12:24,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:12:24,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:12:24,998 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:12:24,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:12:24" (3/4) ... [2020-10-24 15:12:25,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:12:25,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:12:25,006 INFO L168 Benchmark]: Toolchain (without parser) took 1749.43 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.3 MB in the beginning and 37.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-24 15:12:25,007 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 39.8 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:12:25,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.54 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 15:12:25,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 50.3 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:12:25,009 INFO L168 Benchmark]: Boogie Preprocessor took 31.87 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 25.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:12:25,010 INFO L168 Benchmark]: RCFGBuilder took 442.51 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 26.4 MB in the end (delta: -941.4 kB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-10-24 15:12:25,011 INFO L168 Benchmark]: TraceAbstraction took 911.78 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.1 MB in the beginning and 38.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:12:25,012 INFO L168 Benchmark]: Witness Printer took 5.53 ms. Allocated memory is still 65.0 MB. Free memory was 38.1 MB in the beginning and 37.8 MB in the end (delta: 289.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:12:25,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 39.8 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.54 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 50.3 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.87 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 25.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 442.51 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 26.4 MB in the end (delta: -941.4 kB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 911.78 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.1 MB in the beginning and 38.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.53 ms. Allocated memory is still 65.0 MB. Free memory was 38.1 MB in the beginning and 37.8 MB in the end (delta: 289.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 35, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 49. Possible FailurePath: [L14] float pi = 3.14159 ; VAL [pi=314159/100000] [L20] float x = __VERIFIER_nondet_float() ; [L21] float octant = pi/3 ; [L10] COND FALSE !(!cond) VAL [pi=314159/100000] [L23] float oddExp = x ; [L24] float evenExp = 1.0 ; [L25] float term = x ; [L26] unsigned int count = 2 ; [L27] int multFactor = 0 ; [L28] int temp ; VAL [pi=314159/100000] [L30] COND TRUE 1 [L32] term = term * (x/count) VAL [pi=314159/100000] [L33] EXPR (count>>1 % 2 == 0) ? 1 : -1 VAL [pi=314159/100000] [L33] multFactor = (count>>1 % 2 == 0) ? 1 : -1 [L35] evenExp = evenExp + multFactor*term [L37] count++ [L39] term = term * (x/count) [L41] oddExp = oddExp + multFactor*term [L43] count++ [L45] temp = __VERIFIER_nondet_int() [L46] COND TRUE temp == 0 VAL [pi=314159/100000] [L12] COND TRUE !(cond) VAL [pi=314159/100000] [L7] __assert_fail("0", "loop2-1.c", 7, "reach_error") VAL [pi=314159/100000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 1 SDslu, 8 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:12:27,754 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-24 15:12:27,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:12:27,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:12:27,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:12:27,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:12:27,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:12:27,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:12:27,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:12:27,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:12:27,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:12:27,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:12:27,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:12:27,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 15:12:27,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:12:27,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:12:27,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:12:27,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:12:27,987 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:12:27,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:12:27,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:12:27,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:12:27,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:12:27,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:12:27,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:12:27,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:12:27,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:12:27,995 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:12:27,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:12:27,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:12:27,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:12:27,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:12:27,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:12:27,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:12:27,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:12:28,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:12:28,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:12:28,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:12:28,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:12:28,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:12:28,003 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:12:28,003 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:12:28,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:12:28,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:12:28,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:12:28,005 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02e16371708027ec56fdf0402c3e1a5d4f23a0ff [2020-10-24 15:12:28,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:12:28,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:12:28,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:12:28,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:12:28,770 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:12:28,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c [2020-10-24 15:12:28,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3241de969/957bee3a627d4adca31be2a0b9313e8d/FLAGadab63408 [2020-10-24 15:12:29,756 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:12:29,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c [2020-10-24 15:12:29,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3241de969/957bee3a627d4adca31be2a0b9313e8d/FLAGadab63408 [2020-10-24 15:12:29,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3241de969/957bee3a627d4adca31be2a0b9313e8d [2020-10-24 15:12:29,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:12:29,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:12:29,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:12:29,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:12:29,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:12:29,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:12:29" (1/1) ... [2020-10-24 15:12:29,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94cd161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:29, skipping insertion in model container [2020-10-24 15:12:29,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:12:29" (1/1) ... [2020-10-24 15:12:29,818 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:12:29,837 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:12:30,068 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:12:30,086 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:12:30,111 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:12:30,132 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:12:30,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:30 WrapperNode [2020-10-24 15:12:30,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:12:30,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:12:30,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:12:30,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:12:30,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:12:30" (1/1) ... [2020-10-24 15:12:30,155 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:12:30,156 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:12:30,159 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner has thrown an exception: java.lang.AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.checkExistingDeclarationInformation(TypeChecker.java:340) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckLeftHandSide(TypeChecker.java:360) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckStatement(TypeChecker.java:781) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckBlock(TypeChecker.java:846) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processBody(TypeChecker.java:957) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processImplementation(TypeChecker.java:1033) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.process(TypeChecker.java:1120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:156) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 15:12:30,164 INFO L168 Benchmark]: Toolchain (without parser) took 373.72 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 31.2 MB in the end (delta: -720.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:12:30,165 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 35.7 MB. Free memory was 19.9 MB in the beginning and 19.8 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:12:30,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.72 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 32.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:12:30,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 54.5 MB. Free memory was 32.0 MB in the beginning and 31.2 MB in the end (delta: 851.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:12:30,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 35.7 MB. Free memory was 19.9 MB in the beginning and 19.8 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.72 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 32.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 54.5 MB. Free memory was 32.0 MB in the beginning and 31.2 MB in the end (delta: 851.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable * Results from de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: - ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...