./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e1a00cf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12de589994efba7ef02a09446e6dcc495aa77e08 ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12de589994efba7ef02a09446e6dcc495aa77e08 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-0e1a00c [2020-11-29 12:02:07,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 12:02:07,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 12:02:07,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 12:02:07,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 12:02:07,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 12:02:07,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 12:02:07,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 12:02:07,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 12:02:07,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 12:02:07,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 12:02:07,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 12:02:07,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 12:02:07,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 12:02:07,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 12:02:07,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 12:02:07,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 12:02:07,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 12:02:07,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 12:02:07,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 12:02:07,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 12:02:07,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 12:02:07,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 12:02:07,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 12:02:07,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 12:02:07,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 12:02:07,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 12:02:07,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 12:02:07,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 12:02:07,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 12:02:07,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 12:02:07,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 12:02:07,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 12:02:07,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 12:02:07,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 12:02:07,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 12:02:07,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 12:02:07,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 12:02:07,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 12:02:07,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 12:02:07,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 12:02:07,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 12:02:07,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 12:02:07,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 12:02:07,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 12:02:07,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 12:02:07,995 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 12:02:07,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 12:02:07,996 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 12:02:07,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 12:02:07,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 12:02:07,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 12:02:07,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 12:02:07,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 12:02:07,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 12:02:07,999 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 12:02:07,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 12:02:08,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 12:02:08,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 12:02:08,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 12:02:08,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 12:02:08,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 12:02:08,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 12:02:08,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 12:02:08,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 12:02:08,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 12:02:08,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 12:02:08,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 12:02:08,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 12:02:08,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 12:02:08,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 12:02:08,004 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-11-29 12:02:08,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 12:02:08,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 12:02:08,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 12:02:08,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 12:02:08,458 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 12:02:08,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-11-29 12:02:08,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6514c3ed9/a05e01ba599541e38f070f6be269fac9/FLAG8cc795e77 [2020-11-29 12:02:09,090 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 12:02:09,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-11-29 12:02:09,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6514c3ed9/a05e01ba599541e38f070f6be269fac9/FLAG8cc795e77 [2020-11-29 12:02:09,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6514c3ed9/a05e01ba599541e38f070f6be269fac9 [2020-11-29 12:02:09,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 12:02:09,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 12:02:09,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 12:02:09,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 12:02:09,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 12:02:09,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524c99c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09, skipping insertion in model container [2020-11-29 12:02:09,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 12:02:09,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 12:02:09,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 12:02:09,754 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 12:02:09,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 12:02:09,786 INFO L208 MainTranslator]: Completed translation [2020-11-29 12:02:09,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09 WrapperNode [2020-11-29 12:02:09,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 12:02:09,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 12:02:09,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 12:02:09,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 12:02:09,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 12:02:09,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 12:02:09,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 12:02:09,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 12:02:09,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... [2020-11-29 12:02:09,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 12:02:09,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 12:02:09,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 12:02:09,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 12:02:09,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 12:02:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 12:02:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 12:02:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 12:02:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 12:02:10,108 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 12:02:10,109 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 12:02:10,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:02:10 BoogieIcfgContainer [2020-11-29 12:02:10,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 12:02:10,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 12:02:10,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 12:02:10,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 12:02:10,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:02:09" (1/3) ... [2020-11-29 12:02:10,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5104b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:02:10, skipping insertion in model container [2020-11-29 12:02:10,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:09" (2/3) ... [2020-11-29 12:02:10,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5104b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:02:10, skipping insertion in model container [2020-11-29 12:02:10,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:02:10" (3/3) ... [2020-11-29 12:02:10,119 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-11-29 12:02:10,135 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 12:02:10,138 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 12:02:10,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 12:02:10,178 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 12:02:10,178 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 12:02:10,178 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 12:02:10,178 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 12:02:10,178 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 12:02:10,179 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 12:02:10,179 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 12:02:10,179 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 12:02:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 12:02:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 12:02:10,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 12:02:10,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 12:02:10,199 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 12:02:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 12:02:10,205 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 12:02:10,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 12:02:10,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511697150] [2020-11-29 12:02:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 12:02:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 12:02:10,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 12:02:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 12:02:10,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 12:02:10,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 12:02:10,383 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 12:02:10,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 12:02:10,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:02:10 BoogieIcfgContainer [2020-11-29 12:02:10,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 12:02:10,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 12:02:10,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 12:02:10,415 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 12:02:10,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:02:10" (3/4) ... [2020-11-29 12:02:10,419 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 12:02:10,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 12:02:10,422 INFO L168 Benchmark]: Toolchain (without parser) took 932.60 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.0 MB in the beginning and 39.6 MB in the end (delta: -14.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 12:02:10,423 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 48.2 MB. Free memory was 29.9 MB in the beginning and 29.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 12:02:10,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.43 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 26.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:10,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 48.2 MB. Free memory was 26.7 MB in the beginning and 25.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 12:02:10,426 INFO L168 Benchmark]: Boogie Preprocessor took 19.52 ms. Allocated memory is still 48.2 MB. Free memory was 25.4 MB in the beginning and 24.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:10,427 INFO L168 Benchmark]: RCFGBuilder took 267.17 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.4 MB in the beginning and 36.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:10,428 INFO L168 Benchmark]: TraceAbstraction took 301.31 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 40.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:10,429 INFO L168 Benchmark]: Witness Printer took 4.84 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 39.6 MB in the end (delta: 542.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:10,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 48.2 MB. Free memory was 29.9 MB in the beginning and 29.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.43 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 26.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 48.2 MB. Free memory was 26.7 MB in the beginning and 25.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.52 ms. Allocated memory is still 48.2 MB. Free memory was 25.4 MB in the beginning and 24.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 267.17 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.4 MB in the beginning and 36.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 301.31 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 40.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.84 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 39.6 MB in the end (delta: 542.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_float_exact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 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 0.2.0-0e1a00c [2020-11-29 12:02:12,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 12:02:13,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 12:02:13,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 12:02:13,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 12:02:13,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 12:02:13,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 12:02:13,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 12:02:13,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 12:02:13,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 12:02:13,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 12:02:13,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 12:02:13,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 12:02:13,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 12:02:13,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 12:02:13,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 12:02:13,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 12:02:13,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 12:02:13,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 12:02:13,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 12:02:13,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 12:02:13,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 12:02:13,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 12:02:13,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 12:02:13,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 12:02:13,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 12:02:13,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 12:02:13,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 12:02:13,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 12:02:13,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 12:02:13,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 12:02:13,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 12:02:13,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 12:02:13,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 12:02:13,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 12:02:13,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 12:02:13,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 12:02:13,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 12:02:13,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 12:02:13,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 12:02:13,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 12:02:13,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 12:02:13,120 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 12:02:13,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 12:02:13,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 12:02:13,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 12:02:13,122 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 12:02:13,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 12:02:13,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 12:02:13,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 12:02:13,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 12:02:13,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 12:02:13,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 12:02:13,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 12:02:13,124 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 12:02:13,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 12:02:13,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 12:02:13,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 12:02:13,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 12:02:13,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 12:02:13,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 12:02:13,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 12:02:13,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 12:02:13,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 12:02:13,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 12:02:13,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 12:02:13,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 12:02:13,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 12:02:13,128 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 12:02:13,128 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 12:02:13,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 12:02:13,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 12:02:13,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 12:02:13,129 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-11-29 12:02:13,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 12:02:13,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 12:02:13,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 12:02:13,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 12:02:13,546 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 12:02:13,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-11-29 12:02:13,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bb39b2a7/65d69ecca1fe4bab8eb383219c29a3f2/FLAGc358e215c [2020-11-29 12:02:14,250 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 12:02:14,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-11-29 12:02:14,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bb39b2a7/65d69ecca1fe4bab8eb383219c29a3f2/FLAGc358e215c [2020-11-29 12:02:14,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bb39b2a7/65d69ecca1fe4bab8eb383219c29a3f2 [2020-11-29 12:02:14,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 12:02:14,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 12:02:14,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 12:02:14,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 12:02:14,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 12:02:14,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:14,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561cc4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14, skipping insertion in model container [2020-11-29 12:02:14,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:14,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 12:02:14,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 12:02:14,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 12:02:14,939 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 12:02:14,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 12:02:14,973 INFO L208 MainTranslator]: Completed translation [2020-11-29 12:02:14,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14 WrapperNode [2020-11-29 12:02:14,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 12:02:14,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 12:02:14,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 12:02:14,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 12:02:14,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:14,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 12:02:15,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 12:02:15,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 12:02:15,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 12:02:15,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... [2020-11-29 12:02:15,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 12:02:15,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 12:02:15,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 12:02:15,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 12:02:15,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 12:02:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 12:02:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 12:02:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 12:02:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 12:02:15,586 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 12:02:15,586 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 12:02:15,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:02:15 BoogieIcfgContainer [2020-11-29 12:02:15,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 12:02:15,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 12:02:15,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 12:02:15,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 12:02:15,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:02:14" (1/3) ... [2020-11-29 12:02:15,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7176e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:02:15, skipping insertion in model container [2020-11-29 12:02:15,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:02:14" (2/3) ... [2020-11-29 12:02:15,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7176e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:02:15, skipping insertion in model container [2020-11-29 12:02:15,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:02:15" (3/3) ... [2020-11-29 12:02:15,597 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-11-29 12:02:15,612 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 12:02:15,616 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 12:02:15,628 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 12:02:15,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 12:02:15,657 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 12:02:15,657 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 12:02:15,658 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 12:02:15,658 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 12:02:15,658 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 12:02:15,658 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 12:02:15,659 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 12:02:15,671 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 12:02:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 12:02:15,676 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 12:02:15,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 12:02:15,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 12:02:15,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 12:02:15,683 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 12:02:15,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 12:02:15,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518743042] [2020-11-29 12:02:15,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 12:02:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 12:02:15,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 12:02:15,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 12:02:16,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 12:02:16,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 12:02:16,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 12:02:16,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518743042] [2020-11-29 12:02:16,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 12:02:16,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 12:02:16,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785796972] [2020-11-29 12:02:16,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 12:02:16,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 12:02:16,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 12:02:16,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 12:02:16,094 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-11-29 12:02:16,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 12:02:16,314 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-29 12:02:16,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 12:02:16,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-29 12:02:16,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 12:02:16,323 INFO L225 Difference]: With dead ends: 14 [2020-11-29 12:02:16,323 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 12:02:16,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 12:02:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 12:02:16,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 12:02:16,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 12:02:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 12:02:16,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-29 12:02:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 12:02:16,355 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 12:02:16,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 12:02:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 12:02:16,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 12:02:16,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 12:02:16,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 12:02:16,644 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 12:02:16,644 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 12:02:16,644 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 12:02:16,645 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 12:02:16,645 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 12:02:16,645 INFO L258 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-29 12:02:16,645 INFO L262 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-29 12:02:16,646 INFO L262 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-29 12:02:16,646 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 12:02:16,646 INFO L258 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-29 12:02:16,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 12:02:16,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 12:02:16,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 12:02:16,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 12:02:16,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:02:16 BoogieIcfgContainer [2020-11-29 12:02:16,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 12:02:16,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 12:02:16,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 12:02:16,671 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 12:02:16,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:02:15" (3/4) ... [2020-11-29 12:02:16,675 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 12:02:16,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 12:02:16,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 12:02:16,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 12:02:16,687 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 12:02:16,726 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 12:02:16,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 12:02:16,728 INFO L168 Benchmark]: Toolchain (without parser) took 2103.12 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.9 MB in the beginning and 31.9 MB in the end (delta: -12.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 12:02:16,729 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 41.9 MB. Free memory was 22.8 MB in the beginning and 22.7 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 12:02:16,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.36 ms. Allocated memory is still 41.9 MB. Free memory was 19.2 MB in the beginning and 19.0 MB in the end (delta: 246.6 kB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:16,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 41.9 MB. Free memory was 18.9 MB in the beginning and 17.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:16,731 INFO L168 Benchmark]: Boogie Preprocessor took 27.18 ms. Allocated memory is still 41.9 MB. Free memory was 17.5 MB in the beginning and 16.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 12:02:16,732 INFO L168 Benchmark]: RCFGBuilder took 545.81 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 16.3 MB in the beginning and 26.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:16,733 INFO L168 Benchmark]: TraceAbstraction took 1080.68 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 34.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:16,734 INFO L168 Benchmark]: Witness Printer took 55.04 ms. Allocated memory is still 50.3 MB. Free memory was 34.2 MB in the beginning and 31.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 12:02:16,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 41.9 MB. Free memory was 22.8 MB in the beginning and 22.7 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.36 ms. Allocated memory is still 41.9 MB. Free memory was 19.2 MB in the beginning and 19.0 MB in the end (delta: 246.6 kB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 41.9 MB. Free memory was 18.9 MB in the beginning and 17.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.18 ms. Allocated memory is still 41.9 MB. Free memory was 17.5 MB in the beginning and 16.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 545.81 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 16.3 MB in the beginning and 26.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1080.68 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 34.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 55.04 ms. Allocated memory is still 50.3 MB. Free memory was 34.2 MB in the beginning and 31.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant [2020-11-29 12:02:16,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 12:02:16,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2020-11-29 12:02:16,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 12:02:16,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 12:02:16,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 6 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...